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Overton ET, Richmond G, Rizzardini G, Jaeger H, Orrell C, Nagimova F, Bredeek F, García Deltoro M, Swindells S, Andrade-Villanueva JF, Wong A, Khuong-Josses MA, Van Solingen-Ristea R, van Eygen V, Crauwels H, Ford S, Talarico C, Benn P, Wang Y, Hudson KJ, Chounta V, Cutrell A, Patel P, Shaefer M, Margolis DA, Smith KY, Vanveggel S, Spreen W. Long-acting cabotegravir and rilpivirine dosed every 2 months in adults with HIV-1 infection (ATLAS-2M), 48-week results: a randomised, multicentre, open-label, phase 3b, non-inferiority study. Lancet 2021; 396:1994-2005. [PMID: 33308425 DOI: 10.1016/s0140-6736(20)32666-0] [Citation(s) in RCA: 141] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/28/2020] [Accepted: 10/07/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Phase 3 clinical studies showed non-inferiority of long-acting intramuscular cabotegravir and rilpivirine dosed every 4 weeks to oral antiretroviral therapy. Important phase 2 results of every 8 weeks dosing, and supportive modelling, underpin further evaluation of every 8 weeks dosing in this trial, which has the potential to offer greater convenience. Our objective was to compare the week 48 antiviral efficacy of cabotegravir plus rilpivirine long-acting dosed every 8 weeks with that of every 4 weeks dosing. METHODS ATLAS-2M is an ongoing, randomised, multicentre (13 countries; Australia, Argentina, Canada, France, Germany, Italy, Mexico, Russia, South Africa, South Korea, Spain, Sweden, and the USA), open-label, phase 3b, non-inferiority study of cabotegravir plus rilpivirine long-acting maintenance therapy administered intramuscularly every 8 weeks (cabotegravir 600 mg plus rilpivirine 900 mg) or every 4 weeks (cabotegravir 400 mg plus rilpivirine 600 mg) to treatment-experienced adults living with HIV-1. Eligible newly recruited individuals must have received an uninterrupted first or second oral standard-of-care regimen for at least 6 months without virological failure and be aged 18 years or older. Eligible participants from the ATLAS trial, from both the oral standard-of-care and long-acting groups, must have completed the 52-week comparative phase with an ATLAS-2M screening plasma HIV-1 RNA less than 50 copies per mL. Participants were randomly assigned 1:1 to receive cabotegravir plus rilpivirine long-acting every 8 weeks or every 4 weeks. The randomisation schedule was generated by means of the GlaxoSmithKline validated randomisation software RANDALL NG. The primary endpoint at week 48 was HIV-1 RNA ≥50 copies per mL (Snapshot, intention-to-treat exposed), with a non-inferiority margin of 4%. The trial is registered at ClinicalTrials.gov, NCT03299049 and is ongoing. FINDINGS Screening occurred between Oct 27, 2017, and May 31, 2018. Of 1149 individuals screened, 1045 participants were randomised to the every 8 weeks (n=522) or every 4 weeks (n=523) groups; 37% (n=391) transitioned from every 4 weeks cabotegravir plus rilpivirine long-acting in ATLAS. Median participant age was 42 years (IQR 34-50); 27% (n=280) female at birth; 73% (n=763) white race. Cabotegravir plus rilpivirine long-acting every 8 weeks was non-inferior to dosing every 4 weeks (HIV-1 RNA ≥50 copies per mL; 2% vs 1%) with an adjusted treatment difference of 0·8 (95% CI -0·6-2·2). There were eight (2%, every 8 weeks group) and two (<1%, every 4 weeks group) confirmed virological failures (two sequential measures ≥200 copies per mL). For the every 8 weeks group, five (63%) of eight had archived non-nucleoside reverse transcriptase inhibitor resistance-associated mutations to rilpivirine at baseline. The safety profile was similar between dosing groups, with 844 (81%) of 1045 participants having adverse events (excluding injection site reactions); no treatment-related deaths occurred. INTERPRETATION The efficacy and safety profiles of dosing every 8 weeks and dosing every 4 weeks were similar. These results support the use of cabotegravir plus rilpivirine long-acting administered every 2 months as a therapeutic option for people living with HIV-1. FUNDING ViiV Healthcare and Janssen.
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Affiliation(s)
| | | | - Giuliano Rizzardini
- Fatebenefratelli Sacco Hospital, Milan, Italy; School of Clinical Medicine, Faculty of Health Science, University of the Witwatersrand, Johannesburg, South Africa
| | - Hans Jaeger
- MVZ Karlsplatz, HIV Research and Clinical Care Centre, Munich, Germany
| | - Catherine Orrell
- Desmond Tutu HIV Foundation, University of Cape Town Medical School, Cape Town, South Africa
| | - Firaya Nagimova
- Republic Center for the Prevention and Control of AIDS and Infectious Diseases, Russia
| | | | | | | | | | - Alexander Wong
- Department of Medicine, University of Saskatchewan, Regina, Saskatchewan, Canada
| | | | | | - Veerle van Eygen
- Janssen Research and Development, Janssen Pharmaceutica NV, Beerse, Belgium
| | - Herta Crauwels
- Janssen Research and Development, Janssen Pharmaceutica NV, Beerse, Belgium
| | - Susan Ford
- GlaxoSmithKline, Research Triangle Park, NC, USA
| | | | | | | | | | | | - Amy Cutrell
- ViiV Healthcare, Research Triangle Park, NC, USA
| | - Parul Patel
- ViiV Healthcare, Research Triangle Park, NC, USA
| | - Mark Shaefer
- ViiV Healthcare, Research Triangle Park, NC, USA
| | | | | | - Simon Vanveggel
- Janssen Research and Development, Janssen Pharmaceutica NV, Beerse, Belgium
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Salama E, Hill L, Patel N, Best BM, Momper JD. Brief Report: Pharmacokinetics of Bictegravir and Tenofovir in Combination With Darunavir/Cobicistat in Treatment-Experienced Persons With HIV. J Acquir Immune Defic Syndr 2021; 88:389-392. [PMID: 34285156 DOI: 10.1097/qai.0000000000002765] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/22/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Bictegravir coformulated with emtricitabine and tenofovir alafenamide as a fixed-dose combination (BIC/FTC/TAF 50/200/25 mg) is recommended as an initial regimen in patients who are antiretroviral (ARV)-naïve or virologically suppressed on a stable ARV regimen. However, no real-world pharmacokinetic (PK) data are available in treatment-experienced patients with antiretroviral resistance receiving BIC/FTC/TAF plus a boosted protease inhibitor. SETTING/METHODS This prospective, single-center, nonrandomized pharmacokinetic study enrolled adult treatment-experienced persons with HIV and creatinine clearance >30 mL/min receiving BIC/FTC/TAF + DRV/c as part of routine clinical care. Steady-state PK profiles of BIC, TAF, tenofovir (TFV), and DRV after daily dosing of BIC/FTC/TAF + darunavir/cobicistat (DRV/c) were obtained with samples at predose and 0.5, 1, 2, and 4 hours postdose. The AUC0-24 at steady state was extrapolated by imputing C0 for C24 for each participant (AUC0-tau,exp). RESULTS Nine participants were enrolled with a median age of 59 years (range 54-67) and median number of years on ART of 19 (range 5.8-30). The median (interquartile range [IQR]) BIC AUC0-tau,exp and Cmax values were 128.9 µg*h/mL (78.1-159.5) and 6.9 µg/mL (5.1-9.8), respectively. The median (IQR) TAF AUC0-tau,exp and Cmax values were 0.376 µg*h/mL (0.199-0.430) and 0.276 µg/mL (0.149-0.543), respectively. Predose concentrations of TFV and DRV were comparable with historical data. CONCLUSION Treatment-experienced persons with HIV receiving BIC/FTC/TAF + darunavir/cobicistat (DRV/c) had BIC exposures (AUC0-tau) that were increased by approximately 26% compared with historical PK data. Although TAF exposures were substantially increased, plasma TFV was only modestly higher. These results suggest that BIC/TAF/FTC + DRV/c is a viable antiviral regimen option for treatment-experienced persons.
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Affiliation(s)
- Engie Salama
- University of California San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA; and
| | - Lucas Hill
- University of California San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA; and
| | - Nimish Patel
- University of California San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA; and
| | - Brookie M Best
- University of California San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA; and
- Pediatrics Department, University of California San Diego-Rady Children's Hospital San Diego, San Diego, CA
| | - Jeremiah D Momper
- University of California San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA; and
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Hermans LE, Nijhuis M, Tempelman HA, Houts T, Schuurman R, Burger DM, Wensing AMJ, Heine RT. Point-of-Care Detection of Nonadherence to Antiretroviral Treatment for HIV-1 in Resource-Limited Settings Using Drug Level Testing for Efavirenz, Lopinavir, and Dolutegravir: A Validation and Pharmacokinetic Simulation Study. J Acquir Immune Defic Syndr 2021; 87:1072-1078. [PMID: 34153013 DOI: 10.1097/qai.0000000000002681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 12/30/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Virological failure during antiretroviral treatment (ART) may indicate the presence of drug resistance, but may also originate from nonadherence. Qualitative detection of ART components using drug level testing may be used to differentiate between these scenarios. We aimed to validate and implement qualitative point-of-care drug level tests for efavirenz (EFV), lopinavir (LPV), and dolutegravir (DTG) in rural South Africa. METHODS Qualitative performance of immunoassays for EFV, LPV, and DTG was assessed by calculating limit of detection (LoD), region of uncertainty, and qualitative agreement with a reference test. Minimum duration of nonadherence resulting in a negative drug level test was assessed by simulation of treatment cessation using validated population pharmacokinetic models. RESULTS LoD was 0.05 mg/L for EFV, 0.06 mg/L for LPV, and 0.02 mg/L for DTG. Region of uncertainty was 0.01-0.06 mg/L for EFV, 0.01-0.07 mg/L for LPV, and 0.01-0.02 mg/L for DTG. Qualitative agreement with reference testing at the LoD in patient samples was 95.2% (79/83) for EFV, 99.3% (140/141) for LPV, and 100% (118/118) for DTG. After simulated treatment cessation, median time to undetectability below LoD was 7 days [interquartile range (IQR) 4-13] for EFV, 30 hours (IQR 24-36) for LPV, and 6 days (IQR 4-7) for DTG. CONCLUSIONS We demonstrate that qualitative ART drug level testing using immunoassays is feasible in a rural resource-limited setting. Implementation of this technology enables reliable detection of recent nonadherence and may allow for rapid and cost-effective differentiation between patients in need for adherence counseling and patients who require drug resistance testing or alternative treatment.
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Affiliation(s)
- Lucas E Hermans
- Virology, Department of Medical Microbiology, University Medical Center Utrecht (UMCU), Utrecht, the Netherlands
- Wits Reproductive Health and HIV Institute (Wits RHI), University of the Witwatersrand, Johannesburg, South Africa
- Ndlovu Research Consortium, Elandsdoorn, South Africa
| | - Monique Nijhuis
- Virology, Department of Medical Microbiology, University Medical Center Utrecht (UMCU), Utrecht, the Netherlands
- Wits Reproductive Health and HIV Institute (Wits RHI), University of the Witwatersrand, Johannesburg, South Africa
- Ndlovu Research Consortium, Elandsdoorn, South Africa
| | | | - Tom Houts
- ARK Diagnostics, Inc., Fremont, CA; and
| | - Rob Schuurman
- Virology, Department of Medical Microbiology, University Medical Center Utrecht (UMCU), Utrecht, the Netherlands
| | - David M Burger
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Annemarie M J Wensing
- Virology, Department of Medical Microbiology, University Medical Center Utrecht (UMCU), Utrecht, the Netherlands
- Wits Reproductive Health and HIV Institute (Wits RHI), University of the Witwatersrand, Johannesburg, South Africa
- Ndlovu Research Consortium, Elandsdoorn, South Africa
| | - Rob Ter Heine
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
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De Francesco D, Wang X, Dickinson L, Underwood J, Bagkeris E, Babalis DS, Mallon PWG, Post FA, Vera JH, Sachikonye M, Williams I, Khoo S, Sabin CA, Winston A, Boffito M. Associations between plasma nucleoside reverse transcriptase inhibitors concentrations and cognitive function in people with HIV. PLoS One 2021; 16:e0253861. [PMID: 34288920 PMCID: PMC8294567 DOI: 10.1371/journal.pone.0253861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Objectives To investigate the associations of plasma lamivudine (3TC), abacavir (ABC), emtricitabine (FTC) and tenofovir (TFV) concentrations with cognitive function in a cohort of treated people with HIV (PWH). Methods Pharmacokinetics (PK) and cognitive function (Cogstate, six domains) data were obtained from PWH recruited in the POPPY study on either 3TC/ABC or FTC/tenofovir disoproxil fumarate (TDF)-containing regimens. Association between PK parameters (AUC0-24: area under the concentration-time curve over 24 hours, Cmax: maximum concentration and Ctrough: trough concentration) and cognitive scores (standardized into z-scores) were evaluated using rank regression adjusting for potential confounders. Results Median (IQR) global cognitive z-scores in the 83 PWH on 3TC/ABC and 471 PWH on FTC/TDF were 0.14 (-0.27, 0.38) and 0.09 (-0.28, 0.42), respectively. Higher 3TC AUC0-24 and Ctrough were associated with better global z-scores [rho = 0.29 (p = 0.02) and 0.27 (p = 0.04), respectively], whereas higher 3TC Cmax was associated with poorer z-scores [rho = -0.31 (p<0.01)], independently of ABC concentrations. Associations of ABC PK parameters with global and domain z-scores were non-significant after adjustment for confounders and 3TC concentrations (all p’s>0.05). None of the FTC and TFV PK parameters were associated with global or domain cognitive scores. Conclusions Whilst we found no evidence of either detrimental or beneficial effects of ABC, FTC and TFV plasma exposure on cognitive function of PWH, higher plasma 3TC exposures were generally associated with better cognitive performance although higher peak concentrations were associated with poorer performance.
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Affiliation(s)
- Davide De Francesco
- Institute for Global Health, University College London, London, United Kingdom
- * E-mail:
| | - Xinzhu Wang
- Department of Infectious Disease, Imperial College London, London, United Kingdom
| | - Laura Dickinson
- Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom
| | - Jonathan Underwood
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- Division of Infection and Immunity, University of Cardiff, Cardiff, United Kingdom
| | - Emmanouil Bagkeris
- Institute for Global Health, University College London, London, United Kingdom
| | - Daphne S. Babalis
- Imperial Clinical Trials Unit, Imperial College London, London, United Kingdom
| | - Patrick W. G. Mallon
- Infectious Disease Epidemiology, University College Dublin School of Medicine, Dublin, Ireland
| | - Frank A. Post
- King’s College Hospital NHS Foundation Trust, London, United Kingdom
| | - Jaime H. Vera
- Department of Global Health and Infection, Brighton and Sussex Medical School, Brighton, United Kingdom
| | | | - Ian Williams
- Institute for Global Health, University College London, London, United Kingdom
| | - Saye Khoo
- Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool, United Kingdom
| | - Caroline A. Sabin
- Institute for Global Health, University College London, London, United Kingdom
| | - Alan Winston
- Department of Infectious Disease, Imperial College London, London, United Kingdom
| | - Marta Boffito
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- Chelsea and Westminster Healthcare NHS Foundation Trust, London, United Kingdom
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Celum C, Hosek S, Tsholwana M, Kassim S, Mukaka S, Dye BJ, Pathak S, Mgodi N, Bekker LG, Donnell DJ, Wilson E, Yuha K, Anderson PL, Agyei Y, Noble H, Rose SM, Baeten JM, Fogel JM, Adeyeye A, Wiesner L, Rooney J, Delany-Moretlwe S. PrEP uptake, persistence, adherence, and effect of retrospective drug level feedback on PrEP adherence among young women in southern Africa: Results from HPTN 082, a randomized controlled trial. PLoS Med 2021; 18:e1003670. [PMID: 34143779 PMCID: PMC8253429 DOI: 10.1371/journal.pmed.1003670] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/02/2021] [Accepted: 05/21/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Pre-exposure prophylaxis (PrEP) is highly effective and an important prevention tool for African adolescent girls and young women (AGYW), but adherence and persistence are challenging. PrEP adherence support strategies for African AGYW were studied in an implementation study. METHODS AND FINDINGS HIV Prevention Trials Network (HPTN) 082 was conducted in Cape Town, Johannesburg (South Africa) and Harare (Zimbabwe) from October 2016 to October 2018 to evaluate PrEP uptake, persistence, and the effect of drug level feedback on adherence. Sexually active HIV-negative women ages 16-25 were offered PrEP and followed for 12 months; women who accepted PrEP were randomized to standard adherence support (counseling, 2-way SMS, and adherence clubs) or enhanced adherence support with adherence feedback from intracellular tenofovir-diphosphate (TFV-DP) levels in dried blood spots (DBS). PrEP uptake, persistence through 12 months (no PrEP hold or missed visits), and adherence were assessed. The primary outcome was high adherence (TFV-DP ≥700 fmol/punch) at 6 months, compared by study arm. Of 451 women enrolled, median age was 21 years, and 39% had curable sexually transmitted infections (STIs). Most (95%) started PrEP, of whom 55% had uninterrupted PrEP refills through 12 months. Of those with DBS, 84% had detectable TFV-DP levels at month 3, 57% at month 6, and 31% at month 12. At 6 months, 36/179 (21%) of AGYW in the enhanced arm had high adherence and 40/184 (22%) in the standard adherence support arm (adjusted odds ratio [OR] of 0.92; 95% confidence interval [CI] 0.55, 1.34; p = 0.76). Four women acquired HIV (incidence 1.0/100 person-years), with low or undetectable TFV-DP levels at or prior to seroconversion, and none of whom had tenofovir or emtricitabine resistance mutations. The study had limited power to detect a modest effect of drug level feedback on adherence, and there was limited awareness of PrEP at the time the study was conducted. CONCLUSIONS In this study, PrEP initiation was high, over half of study participants persisted with PrEP through month 12, and the majority of young African women had detectable TFV-DP levels through month 6 with one-fifth having high adherence. Drug level feedback in the first 3 months of PrEP use did not increase the proportion with high adherence at month 6. HIV incidence was 1% in this cohort with 39% prevalence of curable STIs and moderate PrEP adherence. Strategies to support PrEP use and less adherence-dependent formulations are needed for this population. TRIAL REGISTRATION ClinicalTrials.gov NCT02732730.
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Affiliation(s)
- Connie Celum
- Departments of Global Health, Medicine, and Epidemiology, University of Washington, Seattle, Washington, United States of America
- * E-mail:
| | - Sybil Hosek
- Department of Psychiatry, Stroger Hospital of Cook County, Chicago, Illinois, United States of America
| | | | - Sheetal Kassim
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Shorai Mukaka
- University of Zimbabwe, College of Health Sciences Clinical Trials Unit Research Unit, Harare, Zimbabwe
| | - Bonnie J. Dye
- Family Health International 360, Durham, North Carolina, United States of America
| | - Subash Pathak
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Nyaradzo Mgodi
- University of Zimbabwe, College of Health Sciences Clinical Trials Unit Research Unit, Harare, Zimbabwe
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Deborah J. Donnell
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Ethan Wilson
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Krista Yuha
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, United States of America
| | - Yaw Agyei
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Heather Noble
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Scott M. Rose
- Family Health International 360, Durham, North Carolina, United States of America
| | - Jared M. Baeten
- Departments of Global Health, Medicine, and Epidemiology, University of Washington, Seattle, Washington, United States of America
| | - Jessica M. Fogel
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Adeola Adeyeye
- National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Division of AIDS, Rockville, Maryland, United States of America
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - James Rooney
- Gilead Sciences, Foster City, California, United States of America
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Owor M, Tierney C, Ziemba L, Browning R, Moye J, Graham B, Reding C, Costello D, Norman J, Wiesner L, Hughes E, Whalen ME, Purdue L, Mmbaga BT, Kamthunzi P, Kawalazira R, Nathoo K, Bradford S, Coletti A, Aweeka F, Musoke P. Pharmacokinetics and Safety of Zidovudine, Lamivudine, and Lopinavir/Ritonavir in HIV-infected Children With Severe Acute Malnutrition in Sub-Saharan Africa: IMPAACT Protocol P1092. Pediatr Infect Dis J 2021; 40:446-452. [PMID: 33464021 PMCID: PMC8043511 DOI: 10.1097/inf.0000000000003055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/19/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Severe acute malnutrition (SAM) may alter the pharmacokinetics (PK), efficacy, and safety of antiretroviral therapy. The phase IV study, IMPAACT P1092, compared PK, safety, and tolerability of zidovudine (ZDV), lamivudine (3TC), and lopinavir/ritonavir (LPV/r) in children with and without SAM. MATERIALS AND METHODS Children living with HIV 6 to <36 months of age with or without World Health Organization (WHO)-defined SAM received ZDV, 3TC, and LPV/r syrup for 48 weeks according to WHO weight band dosing. Intensive PK sampling was performed at weeks 1, 12, and 24. Plasma drug concentrations were measured using liquid chromatography tandem mass spectrometry. Steady-state mean area under the curve (AUC0-12h) and clearance (CL/F) for each drug were compared. Grade ≥3 adverse events were compared between cohorts. RESULTS Fifty-two children were enrolled across 5 sites in Africa with 44% (23/52) female, median age 19 months (Q1, Q3: 13, 25). Twenty-five children had SAM with entry median weight-for-height Z-score (WHZ) -3.4 (IQR -4.0, -3.0) and 27 non-SAM had median WHZ -1.0 (IQR -1.8, -0.1). No significant differences in mean AUC0-12h or CL/F were observed (P ≥ 0.09) except for lower 3TC AUC0-12h (GMR, 0.60; 95% CI, 0.4-1.0; P = 0.047) at week 12, higher ZDV AUC0-12h (GMR, 1.52; 1.2-2.0; P = 0.003) at week 24 in the SAM cohort compared with non-SAM cohort. Treatment-related grade ≥3 events did not differ significantly between cohorts (24.0% vs. 25.9%). CONCLUSION PK and safety findings for ZDV, 3TC, and LPV/r support current WHO weight band dosing of syrup formulations in children with SAM.
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Affiliation(s)
- Maxensia Owor
- From the Makerere University—Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - Camlin Tierney
- Department of Biostatistics, Center for Biostatistics in AIDS Research, Harvard T.H Chan School of Public Health, Boston, MA
| | - Lauren Ziemba
- Department of Biostatistics, Center for Biostatistics in AIDS Research, Harvard T.H Chan School of Public Health, Boston, MA
| | - Renee Browning
- National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | | | | | | | - Diane Costello
- IMPAACT Laboratory Center, University of California, Los Angeles, CA
| | - Jennifer Norman
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Emma Hughes
- Department of Clinical Pharmacy, University of California, San Francisco, San Francisco, CA
| | - Meghan E. Whalen
- Department of Clinical Pharmacy, University of California, San Francisco, San Francisco, CA
| | | | - Blandina Theophil Mmbaga
- Kilimanjaro Clinical Research Institute—Kilimanjaro Christian Medical Center and Kilimanjaro Christian Medical University College, Moshi, Tanzania
| | | | - Rachel Kawalazira
- College of Medicine, Johns Hopkins Research Project, Blantyre, Malawi
| | - Kusum Nathoo
- College of Health Sciences, University of Zimbabwe, Avondale, Harare, Zimbabwe
| | | | | | - Francesca. Aweeka
- Department of Clinical Pharmacy, University of California, San Francisco, San Francisco, CA
| | - Philippa Musoke
- From the Makerere University—Johns Hopkins University Research Collaboration, Kampala, Uganda
- Department of Paediatrics and Child Health, College of Health Sciences, Makerere University, Kampala, Uganda
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7
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Naidoo K, Mansoor LE, Katz AWK, Garcia M, Kemigisha D, Morar NS, Zimba CC, Chitukuta M, Reddy K, Soto-Torres L, Naidoo S, Montgomery ET. Qualitative Perceptions of Dapivirine VR Adherence and Drug Level Feedback Following an Open-Label Extension Trial. J Acquir Immune Defic Syndr 2021; 86:e90-e96. [PMID: 33278181 PMCID: PMC7902420 DOI: 10.1097/qai.0000000000002590] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/20/2020] [Indexed: 01/13/2023]
Abstract
BACKGROUND There continues to be a need for HIV prevention options that women can initiate and use autonomously. The dapivirine vaginal ring (VR) has been shown to have a favorable safety profile and reduce the risk of HIV-1 acquisition. We report on women's experiences with VR adherence during the MTN-025/HIV Open-label Prevention Extension (HOPE) study and responses to Residual Drug Level (RDL) results. SETTING Ten women at each of the 6 HOPE research sites in Lilongwe, Malawi; Durban (2 sites) and Johannesburg, South Africa; Kampala, Uganda; and Chitungwiza, Zimbabwe, were randomly selected (n = 60). METHODS After confirmation of eligibility criteria, in-depth interviews were conducted where available RDL results were presented. RESULTS Many women with low RDL release measurements deflected blame onto other factors (the ring, the drug, and faulty testing machines) and distrust of the testing method. The disclosure of RDL results enabled some users to discuss their challenges experienced (fear of partner objections, perceived side effects, and removals during menses). Consistent users reported important motivators (support from others, protection from HIV, and enhanced sexual experiences from the VR). CONCLUSION The VR provided a sense of security for some women; however, adherence was still challenging for others regardless of it being a female controlled, long-acting HIV prevention technology. Adherence measurements may not be sustainable in the real-world implementation of the VR, although they can be seen as a benefit as they provide a better understanding of actual product use and provide women with a platform to discuss their experiences.
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Affiliation(s)
- Kalendri Naidoo
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
| | - Leila E. Mansoor
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa
| | - Ariana WK. Katz
- Women’s Global Health Imperative, RTI International, Berkeley, California, United States of America
| | - Morgan Garcia
- FHI 360, Durham, North Carolina, United States of America
| | - Doreen Kemigisha
- Makerere University, Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - Neetha S. Morar
- HIV Prevention Research Unit, South African Medical Research Council (SAMRC), Durban, South Africa
| | | | - Miria Chitukuta
- University of Zimbabwe College of Health Sciences Clinical Trials Research Centre (UZCHS-CTRC), Harare, Zimbabwe
| | - Krishnaveni Reddy
- Wits Reproductive Health and HIV Institute (Wits RHI), Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
| | - Lydia Soto-Torres
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Sarita Naidoo
- HIV Prevention Research Unit, South African Medical Research Council, Durban, South Africa (Present affiliation: The Aurum Institute, Johannesburg, South Africa)
| | - Elizabeth T. Montgomery
- Women’s Global Health Imperative, RTI International, Berkeley, California, United States of America
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Ayuso P, Neary M, Chiong J, Owen A. Meta-analysis of the effect of CYP2B6, CYP2A6, UGT2B7 and CAR polymorphisms on efavirenz plasma concentrations. J Antimicrob Chemother 2020; 74:3281-3290. [PMID: 31369088 DOI: 10.1093/jac/dkz329] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 06/14/2019] [Accepted: 07/02/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Efavirenz primary metabolism is catalysed by CYP2B6 with minor involvement of CYP2A6. Subsequently, phase I metabolites are conjugated by UGT2B7, and constitutive androstane receptor (CAR) has been shown to transcriptionally regulate many relevant enzymes and transporters. Several polymorphisms occurring in the genes coding for these proteins have been shown to impact efavirenz pharmacokinetics in some but not all studies. OBJECTIVES A meta-analysis was performed to assess the overall effect of CYP2B6 rs3745274, CYP2A6 (rs28399454, rs8192726 and rs28399433), UGT2B7 (rs28365062 and rs7439366) and NR1I3 (rs2307424 and rs3003596) polymorphisms on mid-dose efavirenz plasma concentrations. METHODS Following a literature review, pharmacokinetic parameters were compiled and a meta-analysis for these variants was performed using Review Manager and OpenMetaAnalyst. A total of 28 studies were included. RESULTS Unsurprisingly, the analysis confirmed that individuals homozygous for the T allele for CYP2B6 rs3745274 had significantly higher efavirenz concentrations than those homozygous for the G allele [weighted standard mean difference (WSMD) = 2.98; 95% CI 2.19-3.76; P < 0.00001]. A subgroup analysis confirmed ethnic differences in frequency but with a similar effect size in each ethnic group (P = 0.96). Associations with CYP2A6 and UGT2B7 variants were not statistically significant, but T homozygosity for CAR rs2307424 was associated with significantly lower efavirenz concentrations than in C homozygotes (WSMD = -0.32; 95% CI -0.59 to -0.06; P = 0.02). CONCLUSIONS This meta-analysis provides the overall effect size for the impact of CYP2B6 rs3745274 and NR1I3 rs2307424 on efavirenz pharmacokinetics. The analysis also indicates that some previous associations were not significant when interrogated across studies.
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Affiliation(s)
- Pedro Ayuso
- Infection Pharmacology Group, University of Liverpool, Liverpool, UK
| | - Megan Neary
- Infection Pharmacology Group, University of Liverpool, Liverpool, UK
| | - Justin Chiong
- Infection Pharmacology Group, University of Liverpool, Liverpool, UK
| | - Andrew Owen
- Infection Pharmacology Group, University of Liverpool, Liverpool, UK
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9
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10
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Cressey TR, Siriprakaisil O, Kubiak RW, Klinbuayaem V, Sukrakanchana PO, Quame-Amaglo J, Okochi H, Tawon Y, Cressey R, Baeten JM, Gandhi M, Drain PK. Plasma pharmacokinetics and urinary excretion of tenofovir following cessation in adults with controlled levels of adherence to tenofovir disoproxil fumarate. Int J Infect Dis 2020; 97:365-370. [PMID: 32553717 PMCID: PMC7392195 DOI: 10.1016/j.ijid.2020.06.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The aim was to fully characterize the plasma and urine washout pharmacokinetics of tenofovir (TFV) in adults following 6 weeks of controlled levels of tenofovir disoproxil fumarate (TDF) adherence, in order to inform the utility of clinic-based adherence testing. DESIGN This was a three-arm, randomized, open-label study in adult volunteers. Participants were randomized to receive TDF 300 mg/emtricitabine (FTC) 200 mg as (1) 7 doses/week (perfect adherence), (2) 4 doses/week (moderate adherence), or (3) 2 doses/week (low adherence). Plasma and urine samples were collected regularly during the 6-week dosing phase and for 4 weeks following drug cessation. RESULTS Twenty-eight adults were included in this analysis. Median (range) age was 33 (20-49) years. No differences in TFV pharmacokinetic parameters during the washout were observed across the study arms. Small differences in TFV plasma concentrations occurred across arms between 4 and 10 h post-dose. The cumulative amount of TFV excreted in urine was not different at 24 h post-dose, but at 148 h it was 24.8 mg, 21.0 mg, and 17.2 mg for the perfect, moderate, and low adherence arms, respectively (p = 0.043). CONCLUSIONS Among adults with different TDF adherence patterns, relative differences in plasma concentrations and cumulative urine extraction of TFV were minor following cessation. TFV measurement in plasma or urine is more indicative of last drug ingestion, rather than prior dose patterns.
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Affiliation(s)
- Tim R Cressey
- PHPT/IRD UMI 174, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand; Department of Immunology and Infectious Diseases, Boston, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK.
| | | | - Rachel W Kubiak
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | | | - Pra-Ornsuda Sukrakanchana
- PHPT/IRD UMI 174, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | | | - Hideaki Okochi
- Department of Medicine, University of California-San Francisco (UCSF), San Francisco, CA, USA
| | - Yardpiroon Tawon
- PHPT/IRD UMI 174, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Ratchada Cressey
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Jared M Baeten
- Department of Epidemiology, University of Washington, Seattle, WA, USA; Department of Global Health, University of Washington, Seattle, WA, USA; Department of Medicine, University of Washington, Seattle, USA
| | - Monica Gandhi
- Department of Medicine, University of California-San Francisco (UCSF), San Francisco, CA, USA
| | - Paul K Drain
- Department of Epidemiology, University of Washington, Seattle, WA, USA; Department of Global Health, University of Washington, Seattle, WA, USA; Department of Medicine, University of Washington, Seattle, USA
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11
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Hakkers CS, Hermans AM, van Maarseveen EM, Teunissen CE, Verberk IMW, Arends JE, Hoepelman AIM. High efavirenz levels but not neurofilament light plasma levels are associated with poor neurocognitive functioning in asymptomatic HIV patients. J Neurovirol 2020; 26:572-580. [PMID: 32524424 PMCID: PMC7438296 DOI: 10.1007/s13365-020-00860-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 05/10/2020] [Accepted: 05/19/2020] [Indexed: 11/29/2022]
Abstract
The aim of this study is to assess the effect of efavirenz exposure on neurocognitive functioning and investigate plasma neurofilament light (Nfl) as a biomarker for neurocognitive damage. Sub-analysis of the ESCAPE-study, a randomised controlled trial where virologically suppressed, cognitively asymptomatic HIV patients were randomised (2:1) to switch to rilpivirine or continue on efavirenz. At baseline and week 12, patients underwent an extensive neuropsychological assessment (NPA), and serum efavirenz concentration and plasma Nfl levels were measured. Subgroups of elevated (≥ 4.0 mg/L) and therapeutic (0.74 to< 4.0 mg/L) baseline efavirenz concentration were made. Differences between these groups in baseline NPA Z-scores and in delta scores after efavirenz discontinuation were assessed. Nfl level was measured using an ELISA analysis using single molecule array (Simoa) technology. Correlation of plasma NFL with NPA Z-scores was evaluated using a linear mixed model. The elevated group consisted of 6 patients and the therapeutic group of 48. At baseline, the elevated group showed lower composite Z-scores (median - 1.03; IQR 0.87 versus 0.27; 0.79. p 0.02). This effect was also seen on the subdomains verbal (p 0.01), executive functioning (p 0.02), attention (p < 0.01) and speed (p 0.01). In the switch group, the elevated group improved more on composite scores after discontinuing efavirenz (mean 0.58; SD 0.32 versus 0.22; 0.54, p 0.15). No association between plasma Nfl and composite Z-score was found. High efavirenz exposure is associated with worse cognitive functioning compared with patients with therapeutic concentrations. Plasma Nfl is not a suitable biomarker to measure cognitive damage in this group.
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Affiliation(s)
- Charlotte S Hakkers
- Department of Internal Medicine, section Infectious Diseases, University Medical Center (UMC) Utrecht, Utrecht University, PO Box 85500, 3508, GA, Utrecht, the Netherlands.
| | - Anne Marie Hermans
- Department of Internal Medicine, section Infectious Diseases, University Medical Center (UMC) Utrecht, Utrecht University, PO Box 85500, 3508, GA, Utrecht, the Netherlands
| | - Erik M van Maarseveen
- Division of Laboratory and Pharmacy, Clinical Pharmacy, University Medical Center (UMC) Utrecht, Utrecht, the Netherlands
| | - Charlotte E Teunissen
- Department of Clinical Chemistry, Amsterdam Neuroscience Neurochemistry laboratory, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Inge M W Verberk
- Department of Clinical Chemistry, Amsterdam Neuroscience Neurochemistry laboratory, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Joop E Arends
- Department of Internal Medicine, section Infectious Diseases, University Medical Center (UMC) Utrecht, Utrecht University, PO Box 85500, 3508, GA, Utrecht, the Netherlands
| | - Andy I M Hoepelman
- Department of Internal Medicine, section Infectious Diseases, University Medical Center (UMC) Utrecht, Utrecht University, PO Box 85500, 3508, GA, Utrecht, the Netherlands
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12
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Hernández-Pineda J, Jung-Cook HH, Katende-Kyenda NL, Galindo-Sevilla N, Domínguez-Castro M, Romo-Yañéz J, Ramírez-Ramírez A, Irles C, Figueroa-Damián R. Assessment of lamivudine, zidovudine, lopinavir, and ritonavir plasma levels in HIV-positive pregnant women: Drug monitoring application to improve patient safety. Medicine (Baltimore) 2020; 99:e20487. [PMID: 32481459 DOI: 10.1097/md.0000000000020487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Simultaneous therapeutic drug monitoring (TDM) of combination antiretroviral therapy (cART) is critical during pregnancy in order to improve clinical follow-up, monitor viral load, and patient adherence to treatment.A modified simple and fast ultra-high performance liquid chromatography coupled with tandem mass spectrometry and electrospray ionization (UPLC-ESI-MS/MS) method was developed and validated according to national and international guidelines for the simultaneous determination of lamivudine (LMV), zidovudine (ZDV), lopinavir (LPV), and ritonavir (RTV) concentrations in 100-μL plasma sample of Human Immunodeficiency Virus (HIV)-positive pregnant women. Protein precipitation using 0.1% formic acid in cold acetonitrile was used for sample preparation. The chromatographic separation was achieved with a run-time of 3.0 minutes and 3-μL injection on an ethylene bridged hybrid C18 column (2.1 μm × 50 mm, 1.7 μm), under gradient conditions using acetonitrile and formic acid (0.1%).The chromatographic method was used to analyze 10 plasma samples from 8 HIV pregnant women as a clinical patient routinely follow-up by applying TDM criteria.The protonated precursor/product ion transitions for LMV (230.18/112.08), ZDV (268.22/127.10), LPV (629.55/447.35), and RTV (721.50/296.20) were recorded in multiple-reaction-monitoring (MRM) mode. The calibration curve was linear in the range of 50-3,000, 75-4,500, 250-15,000, and 25-1,500-ng/mL for LMV, ZDV, LPV, and RTV, respectively. The range of accuracy was 97.2% to 100.1% and precision 3.4% to 12.7%. The method showed specificity and matrix effect values of < 15%. Minimum absolute recovery percentages (%CV) were 90.5 (5.4), 90.8 (5.0), 95.4 (3.5), and 93.7 (6.9), for LMV, ZDV, LPV, and RTV, respectively. Drug concentrations in patient samples had high inter-individual variability with %CV of 91.98%, 77.54%, 53.80%, and 92.16% for ZDV, LMV, LPV, and RTV, respectively. Two of the 8 patients showed no adherence due to the absence of Protease Inhibitors (PIs) levels in plasma.This technique demonstrated to be effective in therapeutic drug monitoring and is intended to be used in population pharmacokinetics specifically for HIV-positive pregnant women.
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Affiliation(s)
| | | | - Norah Lucky Katende-Kyenda
- Department of Internal Medicine and Pharmacology, Walter Sisulu University, School of Medicine, Faculty of Health Sciences, Mthatha, Eastern Cape, South Africa
| | | | | | - José Romo-Yañéz
- Coordinación de Endocrinología Ginecológica y Perinatal. Instituto Nacional de Perinatología, Mexico City, Mexico
| | | | - Claudine Irles
- Departamento de Fisiología y Desarrollo Celular. Instituto Nacional de Perinatología
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Mboup A, Béhanzin L, Guédou F, Giguère K, Geraldo N, Zannou DM, Kêkê RK, Bachabi M, Gangbo F, Affolabi D, Marzinke MA, Hendrix C, Diabaté S, Alary M. Comparison of adherence measurement tools used in a pre-exposure prophylaxis demonstration study among female sex workers in Benin. Medicine (Baltimore) 2020; 99:e20063. [PMID: 32481273 PMCID: PMC7249870 DOI: 10.1097/md.0000000000020063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Measuring adherence to PrEP (pre-exposure prophylaxis) remains challenging. Biological adherence measurements are reported to be more accurate than self-reports and pill counts but can be expensive and not suitable on a daily basis in resource-limited countries. Using data from a demonstration project on PrEP among female sex workers in Benin, we aimed to measure adherence to PrEP and compare self-report and pill count adherence to tenofovir (TFV) disoproxil fumarate (TDF) concentration in plasma to determine if these 2 measures are reliable and correlate well with biological adherence measurements. METHODS Plasma TFV concentrations were analyzed in samples collected at day 14 follow-up visit and months 6, 12, 18, and 24 (or at last visit when follow-up was shorter). Self-reported adherence was captured at day 14 follow-up visit and then quarterly by asking participants to report the number of missed pills within the last week. For pill count, medications were refilled monthly and participants were asked to bring in their medication bottles at each follow-up visit. Using generalized estimating equations adherence measured by self-report and pill count was compared to plasma drug concentrations. RESULTS Of 255 participants, 47.1% completed follow-up. Weighted optimal adherence combining data from all visits was 26.8% for TFV concentration, 56.0% by self-report and 18.9% by pill count. Adherence measured by both TFV concentrations and self-report decreased over time (P = .009 and P = .019, respectively), while the decreasing trend in adherence by pill count was not significant (P = .087). The decrease in adherence was greater using TFV concentrations than the other 2 adherence measures. CONCLUSION With high levels of misreporting of adherence using self-report and pill count, the objective biomedical assessment of adherence via laboratory testing is optimal and more accurately reflects PrEP uptake and persistence. Alternative inexpensive and accurate approaches to monitor PrEP adherence should be investigated.
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Affiliation(s)
- Aminata Mboup
- Département de médecine sociale et préventive, Université Laval
- Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
| | - Luc Béhanzin
- Département de médecine sociale et préventive, Université Laval
- Dispensaire IST, Cotonou, Bénin
- École Nationale de Formation des Techniciens Supérieurs en Santé Publique et en Surveillance Épidémiologique, Université de Parakou
| | - Fernand Guédou
- Département de médecine sociale et préventive, Université Laval
- Dispensaire IST, Cotonou, Bénin
| | - Katia Giguère
- Département de médecine sociale et préventive, Université Laval
- Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
| | | | | | | | | | | | - Dissou Affolabi
- Faculté des sciences de la santé, Université d’Abomey-Calavi
- Centre national hospitalier universitaire HMK de Cotonou, Bénin
| | | | - Craig Hendrix
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Souleymane Diabaté
- Département de médecine sociale et préventive, Université Laval
- Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Université Alassane Ouattara, Bouaké, Côte d’Ivoire
| | - Michel Alary
- Département de médecine sociale et préventive, Université Laval
- Centre de recherche du CHU de Québec-Université Laval, Québec, Canada
- Institut national de santé publique du Québec, Québec, Canada
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14
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Chaivichacharn P, Avihingsanon A, Manosuthi W, Ubolyam S, Tongkobpetch S, Shotelersuk V, Punyawudho B. Dosage Optimization of Efavirenz Based on a Population Pharmacokinetic-Pharmacogenetic Model of HIV-infected Patients in Thailand. Clin Ther 2020; 42:1234-1245. [PMID: 32451120 DOI: 10.1016/j.clinthera.2020.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 01/11/2023]
Abstract
PURPOSE Efavirenz exhibits high interindividual variability in plasma concentrations, leading to unpredictable efficacy and toxicity. Polymorphism of CYP2B6 516G > T has been found to predominantly contribute to efavirenz variability. However, dosage recommendations incorporating CYP2B6 516G > T polymorphism have not been investigated in the Thai population. This study aimed to develop a population model of the pharmacokinetic properties of efavirenz, and to investigate the impact of patients' characteristics and CYP2B6 516G > T polymorphism on the pharmacokinetic properties of efavirenz. Model-based simulations were performed to provide genotype-based dosage optimization in a Thai population. METHODS Plasma efavirenz concentrations measured at 12 h post-dose in 360 Thai HIV-infected patients with and without tuberculosis were analyzed by the nonlinear mixed-effects modeling approach. A 1-compartment model with first-order absorption and elimination was used for describing the pharmacokinetic properties of efavirenz. FINDINGS The allele frequency of CYP2B6 516G > T was 34.17%. The efavirenz oral clearance were 11.9, 8.0, and 2.8 L/h in patients weighing 57 kg and having the CYP2B6 516 GG, 516 GT, and 516 TT genotypes, respectively. The use of rifampicin increased efavirenz oral clearance by 28%. The results from the simulations suggest that efavirenz dosages of 400, 300, and 100 mg once daily in Thai HIV mono-infected patients, and 800, 600, and 200 mg once daily in HIV/tuberculosis co-infected patients carrying CYP2B6 516 GG, 516 GT, and 516 TT, respectively. IMPLICATION The results from this study provide a rationale for efavirenz dose adjustment based on CYP2B6 516G > T polymorphism in Thai HIV-infected patients, which could help to improve treatment outcomes in this population. ClinicalTrials.gov identifier: NCT01138267.
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Affiliation(s)
- Piyawat Chaivichacharn
- Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand
| | - Anchalee Avihingsanon
- HIV-NAT, Thai Red Cross AIDS Research Centre, Bangkok, Thailand; Tuberculosis Research Unit, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Weerawat Manosuthi
- Bamrasnaradura Infectious Diseases Institute, Ministry of Public Health, Mueang Nonthaburi, Thailand
| | | | - Siraprapa Tongkobpetch
- Center of Excellence for Medical Genomics, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; Center of Excellence for Genomics and Precision Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Vorasuk Shotelersuk
- Center of Excellence for Medical Genomics, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; Center of Excellence for Genomics and Precision Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Baralee Punyawudho
- Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand.
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Orkin C, Arasteh K, Górgolas Hernández-Mora M, Pokrovsky V, Overton ET, Girard PM, Oka S, Walmsley S, Bettacchi C, Brinson C, Philibert P, Lombaard J, St Clair M, Crauwels H, Ford SL, Patel P, Chounta V, D'Amico R, Vanveggel S, Dorey D, Cutrell A, Griffith S, Margolis DA, Williams PE, Parys W, Smith KY, Spreen WR. Long-Acting Cabotegravir and Rilpivirine after Oral Induction for HIV-1 Infection. N Engl J Med 2020; 382:1124-1135. [PMID: 32130806 DOI: 10.1056/nejmoa1909512] [Citation(s) in RCA: 202] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Long-acting injectable regimens may simplify therapy for patients with human immunodeficiency virus type 1 (HIV-1) infection. METHODS We conducted a phase 3, randomized, open-label trial in which adults with HIV-1 infection who had not previously received antiretroviral therapy were given 20 weeks of daily oral induction therapy with dolutegravir-abacavir-lamivudine. Participants who had an HIV-1 RNA level of less than 50 copies per milliliter after 16 weeks were randomly assigned (1:1) to continue the current oral therapy or switch to oral cabotegravir plus rilpivirine for 1 month followed by monthly injections of long-acting cabotegravir plus rilpivirine. The primary end point was the percentage of participants who had an HIV-1 RNA level of 50 copies per milliliter or higher at week 48 (Food and Drug Administration snapshot algorithm). RESULTS At week 48, an HIV-1 RNA level of 50 copies per milliliter or higher was found in 6 of 283 participants (2.1%) who received long-acting therapy and in 7 of 283 (2.5%) who received oral therapy (adjusted difference, -0.4 percentage points; 95% confidence interval [CI], -2.8 to 2.1), a result that met the criterion for noninferiority for the primary end point (margin, 6 percentage points). An HIV-1 RNA level of less than 50 copies per milliliter at week 48 was found in 93.6% who received long-acting therapy and in 93.3% who received oral therapy (adjusted difference, 0.4 percentage points; 95% CI, -3.7 to 4.5), a result that met the criterion for noninferiority for this end point (margin, -10 percentage points). Of the participants who received long-acting therapy, 86% reported injection-site reactions (median duration, 3 days; mild or moderate severity, 99% of cases); 4 participants withdrew from the trial for injection-related reasons. Grade 3 or higher adverse events and events that met liver-related stopping criteria occurred in 11% and 2%, respectively, who received long-acting therapy and in 4% and 1% who received oral therapy. Treatment satisfaction increased after participants switched to long-acting therapy; 91% preferred long-acting therapy at week 48. CONCLUSIONS Therapy with long-acting cabotegravir plus rilpivirine was noninferior to oral therapy with dolutegravir-abacavir-lamivudine with regard to maintaining HIV-1 suppression. Injection-site reactions were common. (Funded by ViiV Healthcare and Janssen; FLAIR ClinicalTrials.gov number, NCT02938520.).
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Affiliation(s)
- Chloe Orkin
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Keikawus Arasteh
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Miguel Górgolas Hernández-Mora
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Vadim Pokrovsky
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Edgar T Overton
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Pierre-Marie Girard
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Shinichi Oka
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Sharon Walmsley
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Chris Bettacchi
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Cynthia Brinson
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Patrick Philibert
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Johan Lombaard
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Marty St Clair
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Herta Crauwels
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Susan L Ford
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Parul Patel
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Vasiliki Chounta
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Ronald D'Amico
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Simon Vanveggel
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - David Dorey
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Amy Cutrell
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Sandy Griffith
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - David A Margolis
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Peter E Williams
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Wim Parys
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - Kimberly Y Smith
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
| | - William R Spreen
- From Queen Mary University of London, London (C.O.), and ViiV Healthcare, Brentford (V.C.) - both in the United Kingdom; EPIMED, Berlin (K.A.); Fundación Jiménez Díaz, Madrid (M.G.H.-M.); Central Research Institute of Epidemiology, Moscow (V.P.); the University of Alabama at Birmingham, Birmingham (E.T.O.); Hôpital Saint Antoine, Paris (P.-M.G.), and Hôpital Européen, Marseille (P. Philibert) - both in France; the National Center for Global Health and Medicine, Tokyo (S.O.); the University Health Network, University of Toronto, Toronto (S.W.), and GlaxoSmithKline, Mississauga (S.L.F., D.D.) - both in Ontario, Canada; North Texas Infectious Disease Consultants, Dallas (C. Bettacchi), and Central Texas Clinical Research, Austin (C. Brinson); Josha Research, Bloemfontein, South Africa (J.L.); ViiV Healthcare, Research Triangle Park, NC (M.S.C., P. Patel, R.D., A.C., S.G., D.A.M., K.Y.S., W.R.S.); and Janssen Research and Development, Beerse, Belgium (H.C., S.V., P.E.W., W.P.)
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Swindells S, Andrade-Villanueva JF, Richmond GJ, Rizzardini G, Baumgarten A, Masiá M, Latiff G, Pokrovsky V, Bredeek F, Smith G, Cahn P, Kim YS, Ford SL, Talarico CL, Patel P, Chounta V, Crauwels H, Parys W, Vanveggel S, Mrus J, Huang J, Harrington CM, Hudson KJ, Margolis DA, Smith KY, Williams PE, Spreen WR. Long-Acting Cabotegravir and Rilpivirine for Maintenance of HIV-1 Suppression. N Engl J Med 2020; 382:1112-1123. [PMID: 32130809 DOI: 10.1056/nejmoa1904398] [Citation(s) in RCA: 236] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Simplified regimens for the treatment of human immunodeficiency virus type 1 (HIV-1) infection may increase patient satisfaction and facilitate adherence. METHODS In this phase 3, open-label, multicenter, noninferiority trial involving patients who had had plasma HIV-1 RNA levels of less than 50 copies per milliliter for at least 6 months while taking standard oral antiretroviral therapy, we randomly assigned participants (1:1) to either continue their oral therapy or switch to monthly intramuscular injections of long-acting cabotegravir, an HIV-1 integrase strand-transfer inhibitor, and long-acting rilpivirine, a nonnucleoside reverse-transcriptase inhibitor. The primary end point was the percentage of participants with an HIV-1 RNA level of 50 copies per milliliter or higher at week 48, determined with the use of the Food and Drug Administration snapshot algorithm. RESULTS Treatment was initiated in 308 participants per group. At week 48, HIV-1 RNA levels of 50 copies per milliliter or higher were found in 5 participants (1.6%) receiving long-acting therapy and in 3 (1.0%) receiving oral therapy (adjusted difference, 0.6 percentage points; 95% confidence interval [CI], -1.2 to 2.5), a result that met the criterion for noninferiority for the primary end point (noninferiority margin, 6 percentage points). An HIV-1 RNA level of less than 50 copies per milliliter at week 48 was found in 92.5% of participants receiving long-acting therapy and in 95.5% of those receiving oral therapy (adjusted difference, -3.0 percentage points; 95% CI, -6.7 to 0.7), a result that met the criterion for noninferiority for this end point (noninferiority margin, -10 percentage points). Virologic failure was confirmed in 3 participants who received long-acting therapy and 4 participants who received oral therapy. Adverse events were more common in the long-acting-therapy group and included injection-site pain, which occurred in 231 recipients (75%) of long-acting therapy and was mild or moderate in most cases; 1% withdrew because of this event. Serious adverse events were reported in no more than 5% of participants in each group. CONCLUSIONS Monthly injections of long-acting cabotegravir and rilpivirine were noninferior to standard oral therapy for maintaining HIV-1 suppression. Injection-related adverse events were common but only infrequently led to medication withdrawal. (Funded by ViiV Healthcare and Janssen; ATLAS ClinicalTrials.gov number, NCT02951052.).
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Affiliation(s)
- Susan Swindells
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Jaime-Federico Andrade-Villanueva
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Gary J Richmond
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Giuliano Rizzardini
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Axel Baumgarten
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Mar Masiá
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Gulam Latiff
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Vadim Pokrovsky
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Fritz Bredeek
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Graham Smith
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Pedro Cahn
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Yeon-Sook Kim
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Susan L Ford
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Christine L Talarico
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Parul Patel
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Vasiliki Chounta
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Herta Crauwels
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Wim Parys
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Simon Vanveggel
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Joseph Mrus
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Jenny Huang
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Conn M Harrington
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Krischan J Hudson
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - David A Margolis
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Kimberly Y Smith
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - Peter E Williams
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
| | - William R Spreen
- From the University of Nebraska Medical Center, Omaha (S.S.); Centro Universitario de Ciencias de la Salud, University of Guadalajara, Guadalajara, Mexico (J.-F.A.-V.); Broward Health Medical Center, Broward Health Imperial Point, Fort Lauderdale, FL (G.J.R.); Fatebenefratelli Sacco Hospital, Milan (G.R.); the Center for Infectious Diseases, Berlin (A.B.); Hospital de Elche, Elche, Spain (M.M.); Maxwell Centre, Durban, South Africa (G.L.); the Central Research Institute of Epidemiology, Moscow (V.P.); Metropolis Medical Group, San Francisco (F.B.); Maple Leaf Research, Toronto (G.S.), and GlaxoSmithKline, Mississauga (J.H.) - both in Ontario, Canada; Fundación Huésped, Buenos Aires (P.C.); Chungnam National University School of Medicine, Daejeon, South Korea (Y.-S.K.); GlaxoSmithKline (S.L.F.) and ViiV Healthcare (C.L.T., P.P., J.M., C.M.H., K.J.H., D.A.M., K.Y.S., W.R.S.) - both in Research Triangle Park, NC; ViiV Healthcare, Brentford, United Kingdom (V.C.); and Janssen Research and Development, Beerse, Belgium (H.C., W.P., S.V., P.E.W.)
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Liu H, Daar E, Wang Y, Siqueiros L, Campbell K, Shen J, Guerrero M, Ko MW, Xiong D, Dao J, Young T, Rosen M, Fletcher CV. Pharmacokinetics of Coencapsulated Antiretrovirals with Ingestible Sensors. AIDS Res Hum Retroviruses 2020; 36:65-74. [PMID: 31516025 PMCID: PMC6944136 DOI: 10.1089/aid.2019.0202] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
We investigated the use of a system with an ingestible sensor (Proteus Digital Health Feedback system) coencapsulated with antiretrovirals (ARVs) to measure real-time adherence. To assess the safety and impact, if any, coencapsulation might have on ARV concentrations, we evaluated the pharmacokinetics of ARVs coencapsulated with an ingestible sensor for eight commonly used fixed-dose combination ARVs: emtricitabine (FTC)/tenofovir disoproxil fumarate (TDF); FTC/tenofovir alafenamide (TAF); efavirenz (EFV)/FTC/TDF; abacavir (ABC)/lamivudine (3TC); dolutegravir (DTG)/ABC/3TC; rilpivirine (RPV)/TAF/FTC; elvitegravir (EVG)/cobicistat (COBI)/FTC/TAF; and bictegravir (BIC)/FTC/TAF. The steady-state apparent peak plasma concentration (Cmax) and area under the concentration-time curve (AUC) were determined from plasma concentrations measured at predose, 1, 2, 4, and 6 h postdose, and compared with literature values. A total of 49 unique patients on stable regimens for at least 12 weeks with undetectable viral loads were recruited. Cmax and AUC values were not statistically significantly different from literature values for all of the formulations except the Cmax of FTC/TDF, Cmax of BIC, and the Cmax of RPV. In a subsequent evaluation of FTC/TDF and BIC/FTC/TAF using a crossover design, the geometric mean ratio (GMR) between the coencapsulated and the unencapsulated formulations for FTC/TDF were the following: FTC, 84.6% (90% confidence interval [CI] 66.6-107.4) for AUC and 77.5% (60.1-99.9) for Cmax. For tenofovir (TFV), the GMR was 96.2% (90% CI 89.2-103.8) for AUC and 87.3% (64.2-118.7) for Cmax. The GMR for BIC (from the BIC/FTC/TAF formulation) was 98.0% (90% CI 84.5-113.5) for AUC and 89.9% (84.5-95.7) for Cmax. The observed deviation in FTC/TDF (Truvada) may be due to participant characteristics, fasted/fed conditions, and/or random variation and may warrant further investigations with a larger sample size. These findings provide assurance for use of coencapsulated ARVs for future HIV treatment-adherence research.
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Affiliation(s)
- Honghu Liu
- Division of Public Health and Community Dentistry, University of California, Los Angeles (UCLA), Los Angeles, California
- Department of Medicine, David Geffen School of Medicine, UCLA, Los Angeles, California
- Department of Biostatistics, Fielding School of Public Health, UCLA, Los Angeles, California
| | - Eric Daar
- Department of Medicine, Division of HIV Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California
| | - Yan Wang
- Department of Biostatistics, Fielding School of Public Health, UCLA, Los Angeles, California
- Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, Pennsylvania
| | - Lisa Siqueiros
- Department of Medicine, Division of HIV Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California
| | - Kayla Campbell
- Center for Drug Discovery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Jie Shen
- Division of Public Health and Community Dentistry, University of California, Los Angeles (UCLA), Los Angeles, California
| | - Mario Guerrero
- Department of Medicine, Division of HIV Medicine, Lundquist Institute at Harbor-UCLA Medical Center, Torrance, California
| | - Meng-Wei Ko
- Division of Oral Biology and Medicine, School of Dentistry, UCLA, Los Angeles, California
| | - Di Xiong
- Department of Biostatistics, Fielding School of Public Health, UCLA, Los Angeles, California
| | - John Dao
- Proteus Digital Health, Redwood City, California
| | - Todd Young
- Proteus Digital Health, Redwood City, California
| | - Marc Rosen
- School of Medicine, Yale University, New Haven, Connecticut
| | - Courtney V. Fletcher
- Center for Drug Discovery, University of Nebraska Medical Center, Omaha, Nebraska
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Coyle RP, Schneck CD, Morrow M, Coleman SS, Gardner EM, Zheng JH, Ellison L, Bushman LR, Kiser JJ, Mawhinney S, Anderson PL, Castillo-Mancilla JR. Engagement in Mental Health Care is Associated with Higher Cumulative Drug Exposure and Adherence to Antiretroviral Therapy. AIDS Behav 2019; 23:3493-3502. [PMID: 30798457 DOI: 10.1007/s10461-019-02441-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Mental health (MH) disorders are more prevalent among persons living with HIV compared to the general population, and may contribute to suboptimal adherence to antiretroviral therapy (ART). Tenofovir-diphosphate (TFV-DP), the phosphorylated anabolite of tenofovir (TFV), is a biomarker with a 17-day half-life in red blood cells. TFV-DP can be measured in dried blood spots (DBS) using liquid chromatography/tandem mass spectrometry (LC-MS/MS) to assess adherence and cumulative drug exposure to tenofovir disoproxil fumarate (TDF)-based ART. From a larger clinical cohort (N = 807), TFV-DP concentrations and a paired HIV viral load were available from 521 participants at their enrollment visit. We used multivariable linear regression to evaluate the association between TFV-DP in DBS and engagement in MH care. After adjusting for clinical covariates, participants with MH disorders who were engaged in MH care had 40% higher TFV-DP compared to participants with MH disorders who were not engaged in MH care (p < 0.001), and similar TFV-DP to participants without MH disorders (p = 0.219). Further research is needed to identify the mechanism(s) for these findings, with the goal of optimizing engagement and retention in MH care strategies to improve ART adherence and clinical outcomes in PLWH with MH disorders.
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Affiliation(s)
- Ryan P Coyle
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of Colorado-Anschutz Medical Campus, 12700 E. 19th Ave., B168, Aurora, CO, 80045, USA
| | - Christopher D Schneck
- Department of Psychiatry, School of Medicine, University of Colorado-Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Mary Morrow
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | | | - Edward M Gardner
- Division of Infectious Diseases, Denver Health Medical Center, Denver, CO, USA
| | - Jia-Hua Zheng
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Lucas Ellison
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Lane R Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer J Kiser
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Samantha Mawhinney
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Peter L Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Jose R Castillo-Mancilla
- Division of Infectious Diseases, Department of Medicine, School of Medicine, University of Colorado-Anschutz Medical Campus, 12700 E. 19th Ave., B168, Aurora, CO, 80045, USA.
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Shieh E, Marzinke MA, Fuchs EJ, Hamlin A, Bakshi R, Aung W, Breakey J, Poteat T, Brown T, Bumpus NN, Hendrix CW. Transgender women on oral HIV pre-exposure prophylaxis have significantly lower tenofovir and emtricitabine concentrations when also taking oestrogen when compared to cisgender men. J Int AIDS Soc 2019; 22:e25405. [PMID: 31692269 PMCID: PMC6832671 DOI: 10.1002/jia2.25405] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 09/17/2019] [Accepted: 09/25/2019] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Oral HIV Pre-Exposure Prophylaxis (PrEP) with tenofovir (TFV) disoproxil fumarate (TDF)/emtricitabine (FTC) is highly effective. Transgender women (TGW) have increased HIV risk, but have been underrepresented in trials. For TGW on oestrogens for gender-affirming hormone treatment (GAHT), TDF/FTC-oestrogen interactions may negatively affect HIV prevention or gender-affirming goals. Our aim was to evaluate any pharmacokinetic drug-drug interaction between GAHT and TDF/FTC. METHODS We performed a pharmacokinetic study, in an urban outpatient setting in 2016 to 2018, of the effects of GAHT on TFV, FTC and the active forms TFV diphosphate (TFV-DP) and FTC triphosphate (FTC-TP) in eight TGW and eight cisgender men (CGM). At screening, participants were HIV negative. TGW were to maintain their GAHT regimens and have plasma oestradiol concentrations >100 pg/mL. Under direct observation, participants took oral TDF/FTC daily for seven days. At the last dose, blood was collected pre-dose, one, two, four, six, eight and twenty-four hours, and colon biopsies were collected at 24 hours to measure drug concentration. TGW versus CGM concentration comparisons used non-parametric tests. Blood and colon tissue were also obtained to assess kinase expression. RESULTS Plasma TFV and FTC C24 (trough) concentrations in TGW were lower by 32% (p = 0.010) and 32% (p = 0.038) respectively, when compared to CGM. Plasma TFV and FTC 24-hr area under the concentration-time curve in TGW trended toward and was significantly lower by 27% (p = 0.065) and 24% (p = 0.028) respectively. Peak plasma TFV and FTC concentrations, as well as all other pharmacokinetic measures, were not statistically significant when comparing TGW to CGM. Oestradiol concentrations were not different comparing before and after TDF/FTC dosing. Plasma oestrogen concentration, renal function (estimated creatinine clearance and glomerular filtration rate), and TFV and FTC plasma concentrations (trough and area under the concentration-time curve) were all correlated. CONCLUSIONS GAHT modestly reduces both TFV and FTC plasma concentrations. In TGW taking GAHT, it is unknown if this reduction will impact the HIV protective efficacy of a daily PrEP regimen. However, the combination of an on demand (2 + 1 + 1) PrEP regimen and GAHT may result in concentrations too low for reliable prevention of HIV infection.
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Affiliation(s)
- Eugenie Shieh
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Mark A Marzinke
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
- Department of PathologyJohns Hopkins University School of MedicineBaltimoreMDUSA
| | - Edward J Fuchs
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Allyson Hamlin
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Rahul Bakshi
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Wutyi Aung
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Jennifer Breakey
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Tonia Poteat
- Department of Social MedicineUniversity of North Carolina Chapel HillChapel HillNorth CarolinaUSA
| | - Todd Brown
- Department of Medicine (Endocrinology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Namandjé N Bumpus
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
| | - Craig W Hendrix
- Department of Medicine (Clinical Pharmacology)Johns Hopkins University School of MedicineBaltimoreMDUSA
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Scarsi KK, Cramer YS, Rosenkranz SL, Aweeka F, Berzins B, Coombs RW, Coughlin K, Moran LE, Zorrilla CD, Akelo V, Aziz M, Friedman RK, Gingrich D, Swaminathan S, Godfrey C, Cohn SE. Antiretroviral therapy and vaginally administered contraceptive hormones: a three-arm, pharmacokinetic study. Lancet HIV 2019; 6:e601-e612. [PMID: 31498109 PMCID: PMC6765389 DOI: 10.1016/s2352-3018(19)30155-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 04/30/2019] [Accepted: 05/01/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Drug-drug interactions between orally administered antiretroviral therapy (ART) and hormones released from an intravaginal ring are not known. We hypothesised that ART containing either efavirenz or ritonavir-boosted atazanavir would alter plasma concentrations of vaginally administered etonogestrel and ethinylestradiol but that ART concentrations would be unchanged during use of an intravaginal ring. METHODS We did a parallel, three-group, pharmacokinetic evaluation at HIV clinics in Asia (two sites), South America (five), sub-Saharan Africa (three), and the USA (11) between Dec 30, 2014, and Sept 12, 2016. We enrolled women with HIV who were either ART-naive (control group; n=25), receiving efavirenz-based ART (n=25), or receiving atazanavir-ritonavir-based ART (n=24). Women receiving ART were required to be on the same regimen for at least 30 days, with 400 copies or less per mL of plasma HIV-1 RNA; women not receiving ART had CD4 counts of 350 cells per μL or less. We excluded participants who had a bilateral oophorectomy or conditions that were contraindicated in the intravaginal ring product labelling. An intravaginal ring releasing etonogestrel and ethinylestradiol was inserted at entry (day 0). Single plasma samples for hormone concentrations were collected on days 7, 14, and 21 after intravaginal ring insertion. The primary outcome was the plasma concentration of etonogestrel and ethinylestradiol on day 21. Etonogestrel and ethinylestradiol concentrations were compared between each ART group and the control group by geometric mean ratio (GMR) with 90% CIs and Wilcoxon rank-sum test. As secondary outcomes, efavirenz or ritonavir-boosted atazanavir concentrations were assessed by 8-h intensive pharmacokinetic sampling at entry before intravaginal ring insertion and before intravaginal ring removal on day 21. Antiretroviral areas under the concentration-time curve (AUC0-8 h) were compared before and after intravaginal ring insertion by GMR (90% CI) and Wilcoxon signed-rank test. This study is registered with ClinicalTrials.gov, number NCT01903031. FINDINGS Between Dec 30, 2014, and Sept 12, 2016, we enrolled 84 participants in the study; ten participants were excluded from the primary hormone analysis. 74 participants met the primary endpoint: 25 in the control group, 25 in the efavirenz group, and 24 in the atazanavir group. On day 21 of intravaginal ring use, participants receiving efavirenz had 79% lower etonogestrel (GMR 0·21, 90% CI 0·16-0·28; p<0·0001) and 59% lower ethinylestradiol (0·41, 0·32-0·52; p<0·0001) concentrations compared with the control group. By contrast, participants receiving ritonavir-boosted atazanavir had 71% higher etonogestrel (1·71, 1·37-2·14; p<0·0001), yet 38% lower ethinylestradiol (0·62, 0·49-0·79; p=0·0037) compared with the control group. The AUC0-8 h of efavirenz or atazanavir did not differ between the groups. INTERPRETATION Hormone exposure was significantly lower when an intravaginal ring contraceptive was combined with efavirenz-based ART. Further studies designed to examine pharmacodynamic endpoints, such as ovulation, when intravaginal ring hormones are combined with efavirenz are warranted. FUNDING National Institutes of Health, through the AIDS Clinical Trials Group and the International Maternal Pediatric Adolescent AIDS Clinical Trials Network, National Institute of Allergy and Infectious Diseases, Eunice Kennedy Shriver National Institute of Child Health and Human Development, and the National Institute of Mental Health.
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Affiliation(s)
- Kimberly K Scarsi
- University of Nebraska Medical Center, Department of Pharmacy Practice and Science, Omaha, NE, USA.
| | - Yoninah S Cramer
- Harvard T H Chan School of Public Health, Boston, MA, USA; Frontier Science Foundation, Brookline, MA, USA
| | - Susan L Rosenkranz
- Harvard T H Chan School of Public Health, Boston, MA, USA; Frontier Science Foundation, Brookline, MA, USA
| | - Francesca Aweeka
- Department of Clinical Pharmacy, School of Pharmacy, University of California San Francisco, San Francisco, CA, USA
| | - Baiba Berzins
- Division of Infectious Diseases, Northwestern University, Chicago, IL, USA
| | - Robert W Coombs
- Department of Medicine and Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | | | | | - Carmen D Zorrilla
- University of Puerto Rico School of Medicine, Obstetrics and Gynecology Department, San Juan, Puerto Rico
| | | | - Mariam Aziz
- Division of Infectious Diseases, Rush University Medical Center, Chicago, IL, USA
| | - Ruth K Friedman
- Laboratório de Pesquisa Clínica em DST/Aids, Instituto Nacional de Infectologia Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - David Gingrich
- Department of Clinical Pharmacy, School of Pharmacy, University of California San Francisco, San Francisco, CA, USA
| | - Shobha Swaminathan
- Division of Infectious Diseases, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Catherine Godfrey
- Division of AIDS, National Institutions of Allergy and Infectious Disease, National Institutes of Health, Bethesda, MD, USA
| | - Susan E Cohn
- Division of Infectious Diseases, Northwestern University, Chicago, IL, USA
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Burgunder E, Fallon JK, White N, Schauer AP, Sykes C, Remling-Mulder L, Kovarova M, Adamson L, Luciw P, Garcia JV, Akkina R, Smith PC, Kashuba ADM. Antiretroviral Drug Concentrations in Lymph Nodes: A Cross-Species Comparison of the Effect of Drug Transporter Expression, Viral Infection, and Sex in Humanized Mice, Nonhuman Primates, and Humans. J Pharmacol Exp Ther 2019; 370:360-368. [PMID: 31235531 PMCID: PMC6695867 DOI: 10.1124/jpet.119.259150] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 06/19/2019] [Indexed: 12/21/2022] Open
Abstract
In a "kick and kill" strategy for human immunodeficiency virus (HIV) eradication, protective concentrations of antiretrovirals (ARVs) in the lymph node are important to prevent vulnerable cells from further HIV infection. However, the factors responsible for drug distribution and concentration into these tissues are largely unknown. Although humanized mice and nonhuman primates (NHPs) are crucial to HIV research, ARV tissue pharmacology has not been well characterized across species. This study investigated the influence of drug transporter expression, viral infection, and sex on ARV penetration within lymph nodes of animal models and humans. Six ARVs were dosed for 10 days in humanized mice and NHPs. Plasma and lymph nodes were collected at necropsy, 24 hours after the last dose. Human lymph node tissue and plasma from deceased patients were collected from tissue banks. ARV, active metabolite, and endogenous nucleotide concentrations were measured by liquid chromatography-tandem mass spectrometry, and drug transporter expression was measured using quantitative polymerase chain reaction and quantitative targeted absolute proteomics. In NHPs and humans, lymph node ARV concentrations were greater than or equal to plasma, and tenofovir diphosphate/deoxyadenosine triphosphate concentration ratios achieved efficacy targets in lymph nodes from all three species. There was no effect of infection or sex on ARV concentrations. Low drug transporter expression existed in lymph nodes from all species, and no predictive relationships were found between transporter gene/protein expression and ARV penetration. Overall, common preclinical models of HIV infection were well suited to predict human ARV exposure in lymph nodes, and low transporter expression suggests primarily passive drug distribution in these tissues. SIGNIFICANCE STATEMENT: During human immunodeficiency virus (HIV) eradication strategies, protective concentrations of antiretrovirals (ARVs) in the lymph node prevent vulnerable cells from further HIV infection. However, ARV tissue pharmacology has not been well characterized across preclinical species used for HIV eradication research, and the influence of drug transporters, HIV infection, and sex on ARV distribution and concentration into the lymph node is largely unknown. Here we show that two animal models of HIV infection (humanized mice and nonhuman primates) were well suited to predict human ARV exposure in lymph nodes. Additionally, we found that drug transporter expression was minimal and-along with viral infection and sex-did not affect ARV penetration into lymph nodes from any species.
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Affiliation(s)
- Erin Burgunder
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - John K Fallon
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Nicole White
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Amanda P Schauer
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Craig Sykes
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Leila Remling-Mulder
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Martina Kovarova
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Lourdes Adamson
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Paul Luciw
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - J Victor Garcia
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Ramesh Akkina
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Philip C Smith
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
| | - Angela D M Kashuba
- Eshelman School of Pharmacy (E.B., J.K.F., N.W., A.P.S., C.S., P.C.S., A.D.M.K.) and School of Medicine (M.K., J.V.G., A.D.M.K.), University of North Carolina, Chapel Hill, North Carolina; School of Medicine, Colorado State University, Fort Collins, Colorado (L.R.-M., R.A.); and School of Medicine, University of California, Davis, California (L.A., P.L.)
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22
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Spinelli MA, Glidden DV, Anderson PL, Gandhi M, Cohen S, Vittinghoff E, Coleman ME, Scott H, Bacon O, Elion R, Kolber MA, Buchbinder SP, Liu AY. Brief Report: Short-Term Adherence Marker to PrEP Predicts Future Nonretention in a Large PrEP Demo Project: Implications for Point-of-Care Adherence Testing. J Acquir Immune Defic Syndr 2019; 81:158-162. [PMID: 31095005 PMCID: PMC6530484 DOI: 10.1097/qai.0000000000002005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Objective adherence metrics for tenofovir (TFV) disoproxil fumarate/emtricitabine (FTC)-based pre-exposure prophylaxis (PrEP) were critical for interpretation of efficacy in PrEP clinical trials, and there is increasing interest in using drug levels to tailor interventions for reengagement and adherence. Point-of-care immunoassays for TFV, which examine short-term adherence, are in development. However, the ability of poor short-term and long-term adherence to predict future PrEP nonretention is unknown. SETTING Secondary data analysis of a large, prospective multi-site U.S. PrEP demonstration project. METHODS An adjusted Cox-proportional hazards model examined the relationship of dried blood spot (DBS) levels of FTC-triphosphate (FTC-TP) or TFV-diphosphate (TFV-DP), measures of short-term and long-term PrEP adherence, respectively, with future study nonretention. RESULTS Overall, 294 individuals (median age 33 years) contributed drug levels within the U.S. PrEP demonstration project. By the end of study, 27% were lost to follow-up, 25% had at least one undetectable FTC-TP level indicating poor short-term adherence, and 29% had a drug level indicating suboptimal long-term adherence (TFV-DP <700 fmol/punch). The strongest factor associated with future study nonretention using a binary drug-level cut-off was an undetectable DBS FTC-TP level (adjusted hazard ratio 6.3; 95% confidence interval 3.8 to 10.2). The suboptimal long-term adherence based on low DBS TFV-DP levels was also associated with nonretention (adjusted hazard ratio 4.3; 95% confidence interval: 2.4 to 7.6). CONCLUSIONS Both short- and long-term metrics of PrEP adherence are strongly associated with future loss to follow-up in a U.S. demonstration project study. Short-term metrics of adherence, once available at the point-of-care, could be used to direct real-time tailored retention and adherence interventions.
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Affiliation(s)
- Matthew A. Spinelli
- Division of HIV, ID, and Global Medicine, University of California, San Francisco, U.S
| | - David V. Glidden
- Department of Epidemiology and Biostatistics, University of California, San Francisco, U.S
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, U.S
| | - Monica Gandhi
- Division of HIV, ID, and Global Medicine, University of California, San Francisco, U.S
| | - Stephanie Cohen
- San Francisco Department of Public Health, San Francisco, U.S
| | - Eric Vittinghoff
- Department of Epidemiology and Biostatistics, University of California, San Francisco, U.S
| | | | - Hyman Scott
- San Francisco Department of Public Health, San Francisco, U.S
| | - Oliver Bacon
- San Francisco Department of Public Health, San Francisco, U.S
| | | | - Michael A. Kolber
- Department of Medicine, University of Miami Miller School of Medicine, Miami, U.S
| | | | - Albert Y. Liu
- San Francisco Department of Public Health, San Francisco, U.S
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23
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Mazanderani AH, Murray TY, Sherman GG, Snyman T, George J, Avenant T, Goga AE, Pepper MS, du Plessis N. Non-nucleoside reverse transcriptase inhibitor levels among HIV-exposed uninfected infants at the time of HIV PCR testing - findings from a tertiary healthcare facility in Pretoria, South Africa. J Int AIDS Soc 2019; 22:e25284. [PMID: 31215757 PMCID: PMC6582367 DOI: 10.1002/jia2.25284] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 03/29/2019] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION To date, very little programmatic data has been published regarding serial antiretroviral (ARV) levels in infants exposed to maternal treatment and/or infant prophylaxis during the first months of life. Such data provide the opportunity to describe the proportion of infants exposed to virologically suppressive levels of ARVs and to gauge adherence to the prevention of mother-to-child transmission of HIV (PMTCT) programme. METHODS From August 2014 to January 2016, HIV-exposed infants born at Kalafong Provincial Tertiary Hospital in Pretoria, South Africa were enrolled as part of an observational cohort study. Plasma samples from HIV-exposed uninfected infants were obtained at birth, 6-weeks, 10-weeks and 14-weeks of age and quantitative efavirenz (EFV) and nevirapine (NVP) drug level testing performed using liquid chromatography-mass spectrometry, irrespective of maternal ARV regimen. Descriptive analysis of EFV and NVP levels in relation to self-reported maternal and infant ARV exposure was performed. EFV levels >500 ng/mL and NVP levels >100 ng/mL were reported based on studies suggesting that trough levels above these thresholds are associated with virological suppression and PMTCT respectively. RESULTS Among 66 infants exposed to maternal EFVin utero, 29 (44%) had virologically suppressive plasma EFV levels at birth, with a median level of 1665 ng/mL (IQR: 1094 to 3673). Among infants who were exclusively breastfed at 6-, 10- and 14 weeks, 13/48 (27%), 5/25 (25%) and 0/21 (0%) had virologically suppressive EFV levels. Among 64 infants whose mothers reported administering daily infant NVP at time of their 6-week HIV PCR test, only 45 (70%) had NVP levels above the minimum prophylactic trough level. CONCLUSIONS During the first 10-weeks after delivery, a quarter of breastfed infants born to women on an EFV-containing treatment regimen maintained virologically suppressive EFV plasma levels. This finding highlights the importance of both careful monitoring of ARV side effects and repeat HIV PCR after the first few months of life among HIV-exposed uninfected infants. As 30% of infants had inadequate NVP plasma levels at 6-weeks of age, adherence counselling to caregivers regarding infant prophylaxis needs to be enhanced to further reduce mother-to-child transmission of HIV.
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Affiliation(s)
- Ahmad Haeri Mazanderani
- Centre for HIV & STIsNational Institute for Communicable DiseasesNational Health Laboratory ServiceJohannesburgSouth Africa
- Department of Medical VirologyFaculty of Health SciencesUniversity of PretoriaPretoriaSouth Africa
| | - Tanya Y Murray
- Centre for HIV & STIsNational Institute for Communicable DiseasesNational Health Laboratory ServiceJohannesburgSouth Africa
- Paediatric HIV DiagnosticsWits Health ConsortiumJohannesburgSouth Africa
| | - Gayle G Sherman
- Centre for HIV & STIsNational Institute for Communicable DiseasesNational Health Laboratory ServiceJohannesburgSouth Africa
- Paediatric HIV DiagnosticsWits Health ConsortiumJohannesburgSouth Africa
- Department of Paediatrics & Child HealthFaculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Tracy Snyman
- Department of Chemical PathologyNational Health Laboratory Service and University of WitwatersrandJohannesburgSouth Africa
| | - Jaya George
- Department of Chemical PathologyNational Health Laboratory Service and University of WitwatersrandJohannesburgSouth Africa
| | - Theunis Avenant
- Paediatric Infectious Diseases DivisionDepartment of PaediatricsKalafong Provincial Tertiary HospitalPretoriaSouth Africa
- Department of Paediatrics and Child HealthFaculty of Health SciencesUniversity of PretoriaPretoriaSouth Africa
| | - Ameena E Goga
- Department of Paediatrics and Child HealthFaculty of Health SciencesUniversity of PretoriaPretoriaSouth Africa
- Health Systems Research UnitSouth African Medical Research CouncilCape TownSouth Africa
| | - Michael S Pepper
- Institute for Cellular and Molecular MedicineDepartment of ImmunologySAMRC Extramural Unit for Stem Cell Research and TherapyFaculty of Health SciencesUniversity of PretoriaPretoriaSouth Africa
| | - Nicolette du Plessis
- Paediatric Infectious Diseases DivisionDepartment of PaediatricsKalafong Provincial Tertiary HospitalPretoriaSouth Africa
- Department of Paediatrics and Child HealthFaculty of Health SciencesUniversity of PretoriaPretoriaSouth Africa
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24
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Abstract
Pre-exposure prophylaxis (PrEP) for the prevention of HIV infection with 300 mg daily tenofovir co-formulated with 200 mg emtricitabine is recommended as one prevention option for people who are at substantial risk of acquiring an HIV infection. We report the case of a 28-year-old man who has sex with men and who was referred to our unit for a primary HIV infection with positive p18, p24 and gp160 bands on Western blot analysis but with a low HIV plasma viral load. Although HIV misdiagnosis should always be considered in cases of atypical seroconversion pattern with a low viral burden, unsupervised PrEP should be systematically investigated.
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Affiliation(s)
- Hélène Laroche
- 1 Service d'Immuno-hématologie Clinique, Aix Marseille Univ, APHM Sainte-Marguerite, Marseille, France
| | - Caroline Lions
- 1 Service d'Immuno-hématologie Clinique, Aix Marseille Univ, APHM Sainte-Marguerite, Marseille, France
| | - Olivia Zaegel-Faucher
- 1 Service d'Immuno-hématologie Clinique, Aix Marseille Univ, APHM Sainte-Marguerite, Marseille, France
| | - Catherine Tamalet
- 2 IHU Méditerranée Infection, Pôle des Maladies Infectieuses et Tropicales Clinique et Biologique, Fédération de Bactériologie-Hygiène-Virologie, APHM Timone, Marseille, France
| | - Isabelle Poizot-Martin
- 1 Service d'Immuno-hématologie Clinique, Aix Marseille Univ, APHM Sainte-Marguerite, Marseille, France
- 3 Aix Marseille Univ, APHM, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l'Information Médicale, Hôpital Sainte-Marguerite, Service d'Immuno-hématologie Clinique, Marseille, France
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25
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Davis NL, Corbett A, Kaullen J, Nelson JAE, Chasela CS, Sichali D, Hudgens MG, Miller WC, Jamieson DJ, Kourtis AP. Antiretroviral Drug Concentrations in Breastmilk, Maternal HIV Viral Load, and HIV Transmission to the Infant: Results From the BAN Study. J Acquir Immune Defic Syndr 2019; 80:467-473. [PMID: 30570527 PMCID: PMC6391211 DOI: 10.1097/qai.0000000000001941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Concentration of antiretroviral (ARV) drug found in plasma, and amounts of drug excreted into breastmilk, may affect HIV viral load and potentially perinatal HIV transmission. METHODS In this cohort study with 2-phase sampling, we included mothers randomized to postpartum maternal ARVs or daily infant nevirapine during 28 weeks of breastfeeding in the Breastfeeding, Antiretrovirals, and Nutrition study. Among these, we included all mothers who transmitted HIV to their infants between 2 and 28 weeks and 15% of mothers who did not (n = 27 and 227, respectively). Spearman correlation coefficients (r) were used to assess the correlation between maternal plasma and breastmilk ARV concentration. Associations between the median effective drug concentration (EC50) and detectable maternal viral load (plasma: >40 copies per milliliter, breastmilk: >56 copies per milliliter) were assessed using mixed-effects models. Cox models were used to estimate the association between maternal or infant plasma drug concentration and breastmilk HIV transmission from 2 to 28 weeks. RESULTS All ARV compounds exhibited substantial correlations between maternal plasma and breastmilk concentrations (r: 0.85-0.98, P-value <0.0001). Having plasma drug concentration above the EC50 was associated with lower odds of having detectable HIV RNA [maternal plasma odds ratio (OR) 0.64, 95% confidence interval (CI): 0.45 to 0.91; breastmilk OR 0.22, 95% CI: 0.14 to 0.35] and a reduced rate of breastmilk HIV transmission (hazard ratio 0.40, 95% CI: 0.18 to 0.93). Having breastmilk drug concentration above the EC50 was also associated with lower odds of having detectable maternal HIV RNA (plasma OR 0.62, 95% CI: 0.45 to 0.85; breastmilk OR 0.42, 95% CI: 0.29 to 0.59). CONCLUSIONS Ensuring adequate drug concentration is important for viral suppression and preventing breastmilk HIV transmission.
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Affiliation(s)
- Nicole L Davis
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, GA
| | - Amanda Corbett
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Josh Kaullen
- Division of Pharmacotherapy and Experimental Therapeutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Julie A E Nelson
- Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Charles S Chasela
- Division of Epidemiology and Biostatistics, School of Public Health, University of Witwatersrand, Parktown, South Africa
| | | | - Michael G Hudgens
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | | | - Denise J Jamieson
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, GA
| | - Athena P Kourtis
- Division of Reproductive Health, Centers for Disease Control and Prevention, Atlanta, GA
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26
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Yager JL, Coyle RP, Coleman SS, Ellison L, Zheng JH, Bushman L, Gardner EM, Morrow M, MaWhinney S, Anderson PL, Justice Kiser J, Castillo-Mancilla JR. Moderately High Tenofovir Diphosphate in Dried Blood Spots Indicates Drug Resistance in Viremic Persons Living with HIV. J Int Assoc Provid AIDS Care 2019; 18:2325958219888457. [PMID: 31750768 PMCID: PMC6873269 DOI: 10.1177/2325958219888457] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Tenofovir diphosphate (TFV-DP) in dried blood spots (DBS) is a strong predictor of viral suppression in persons living with HIV (PLWH). Its association with antiretroviral therapy (ART) resistance remains unknown. METHODS Blood was collected in PLWH receiving TDF-containing ART enrolled in a 48-week study. Tenofovir diphosphate/emtricitabine triphosphate (FTC-TP) were quantified from the same sample as HIV viral load (VL) in PLWH who developed resistance within ≤12 months. RESULTS The study enrolled 807 participants, of whom 10 had new resistance-conferring mutations. Among these, median (interquartile range) TFV-DP and HIV VL were 956 (407-1510) fmol/punch and 9840 (513-68,200) copies/mL, respectively. Five had quantifiable FTC-TP in DBS. Based on previously published data, a TFV-DP concentration of 956 fmol/punch would have an adjusted odds of virologic suppression of 32.8 versus TFV-DP <350 fmol/punch, making viremia of ∼10,000 copies/mL an unexpected outcome. CONCLUSION Moderately high TFV-DP in DBS (700-1249 fmol/punch) in PLWH with high viremia suggest that antiretroviral drug resistance might be present.
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Affiliation(s)
- Jenna Lynn Yager
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and
Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Ryan Patrick Coyle
- Division of Infectious Diseases, School of Medicine, University of Colorado
Anschutz Medical Campus, Aurora, CO, USA
| | | | - Lucas Ellison
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and
Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Jia-Hua Zheng
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and
Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Lane Bushman
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and
Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | | | - Mary Morrow
- Department of Biostatistics and Bioinformatics, Colorado School of Public
Health, Aurora, CO, USA
| | - Samantha MaWhinney
- Department of Biostatistics and Bioinformatics, Colorado School of Public
Health, Aurora, CO, USA
| | - Peter L. Anderson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and
Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Jennifer Justice Kiser
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and
Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Jose Ramon Castillo-Mancilla
- Division of Infectious Diseases, School of Medicine, University of Colorado
Anschutz Medical Campus, Aurora, CO, USA
- Jose R. Castillo-Mancilla, MD, Division of
Infectious Diseases, School of Medicine, University of Colorado, Anschutz Medical Campus,
12700 E 19th Ave, B168. Aurora, CO 80045, USA.
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Schalkwijk S, Ter Heine R, Colbers AC, Huitema ADR, Denti P, Dooley KE, Capparelli E, Best BM, Cressey TR, Greupink R, Russel FGM, Mirochnick M, Burger DM. A Mechanism-Based Population Pharmacokinetic Analysis Assessing the Feasibility of Efavirenz Dose Reduction to 400 mg in Pregnant Women. Clin Pharmacokinet 2018; 57:1421-1433. [PMID: 29520730 PMCID: PMC6182466 DOI: 10.1007/s40262-018-0642-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Reducing the dose of efavirenz can improve safety, reduce costs, and increase access for patients with HIV infection. According to the World Health Organization, a similar dosing strategy for all patient populations is desirable for universal roll-out; however, it remains unknown whether the 400 mg daily dose is adequate during pregnancy. METHODS We developed a mechanistic population pharmacokinetic model using pooled data from women included in seven studies (1968 samples, 774 collected during pregnancy). Total and free efavirenz exposure (AUC24 and C12) were predicted for 400 (reduced) and 600 mg (standard) doses in both pregnant and non-pregnant women. RESULTS Using a 400 mg dose, the median efavirenz total AUC24 and C12 during the third trimester of pregnancy were 91 and 87% of values among non-pregnant women, respectively. Furthermore, the median free efavirenz C12 and AUC24 were predicted to increase during pregnancy by 11 and 15%, respectively. CONCLUSIONS It was predicted that reduced-dose efavirenz provides adequate exposure during pregnancy. These findings warrant prospective confirmation.
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Affiliation(s)
- Stein Schalkwijk
- Department of Pharmacy, Radboud Institute for Health Sciences (RIHS), Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands.
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Rob Ter Heine
- Department of Pharmacy, Radboud Institute for Health Sciences (RIHS), Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
| | - Angela C Colbers
- Department of Pharmacy, Radboud Institute for Health Sciences (RIHS), Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
| | - Alwin D R Huitema
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Paolo Denti
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Kelly E Dooley
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Edmund Capparelli
- Skaggs School of Pharmacy and Pharmaceutical Sciences and School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Brookie M Best
- Skaggs School of Pharmacy and Pharmaceutical Sciences and School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Tim R Cressey
- Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK
| | - Rick Greupink
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frans G M Russel
- Department of Pharmacology and Toxicology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - David M Burger
- Department of Pharmacy, Radboud Institute for Health Sciences (RIHS), Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen, The Netherlands
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Landovitz RJ, Li S, Grinsztejn B, Dawood H, Liu AY, Magnus M, Hosseinipour MC, Panchia R, Cottle L, Chau G, Richardson P, Marzinke MA, Hendrix CW, Eshleman SH, Zhang Y, Tolley E, Sugarman J, Kofron R, Adeyeye A, Burns D, Rinehart AR, Margolis D, Spreen WR, Cohen MS, McCauley M, Eron JJ. Safety, tolerability, and pharmacokinetics of long-acting injectable cabotegravir in low-risk HIV-uninfected individuals: HPTN 077, a phase 2a randomized controlled trial. PLoS Med 2018; 15:e1002690. [PMID: 30408115 PMCID: PMC6224042 DOI: 10.1371/journal.pmed.1002690] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 10/08/2018] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Cabotegravir (CAB) is a novel strand-transfer integrase inhibitor being developed for HIV treatment and prevention. CAB is formulated both as an immediate-release oral tablet for daily administration and as a long-acting injectable suspension (long-acting CAB [CAB LA]) for intramuscular (IM) administration, which delivers prolonged plasma exposure to the drug after IM injection. HIV Prevention Trials Network study 077 (HPTN 077) evaluated the safety, tolerability, and pharmacokinetics of CAB LA in HIV-uninfected males and females at 8 sites in Brazil, Malawi, South Africa, and the United States. METHODS AND FINDINGS HPTN 077 was a double-blind, placebo-controlled phase 2a trial. Healthy individuals age 18-65 years at low HIV risk were randomized (3:1) to receive CAB or placebo (PBO). In the initial oral phase, participants received 1 daily oral tablet (CAB or PBO) for 4 weeks. Those without safety concerns in the oral phase continued and received injections in the injection phase (Cohort 1: 3 injections of CAB LA 800 mg or 0.9% saline as PBO IM every 12 weeks for 3 injection cycles; Cohort 2: CAB LA 600 mg or PBO IM for 5 injection cycles; the first 2 injections in Cohort 2 were separated by 4 weeks, the rest by 8 weeks). The primary analysis included weeks 5 to 41 of study participation, encompassing the injection phase. The cohorts were enrolled sequentially. Primary outcomes were safety and tolerability. Secondary outcomes included pharmacokinetics and events occurring during the oral and injection phases. Between February 9, 2015, and May 27, 2016, the study screened 443 individuals and enrolled 110 participants in Cohort 1 and 89 eligible participants in Cohort 2. Participant population characteristics were as follows: 66% female at birth; median age 31 years; 27% non-Hispanic white, 41% non-Hispanic black, 24% Hispanic/Latino, 3% Asian, and 6% mixed/other; and 6 transgender men and 1 transgender woman. Twenty-two (11%) participants discontinued the oral study product; 6 of these were for clinical or laboratory adverse events (AEs). Of those who received at least 1 CAB LA injection, 80% of Cohort 1 and 92% of Cohort 2 participants completed all injections; injection course completion rates were not different from those in the PBO arm. Injection site reactions (ISRs) were common (92% of Cohort 1 and 88% of Cohort 2 participants who received CAB LA reported any ISR). ISRs were mostly Grade 1 (mild) to Grade 2 (moderate), and 1 ISR event (Cohort 1) led to product discontinuation. Grade 2 or higher ISRs were the only AEs reported more commonly among CAB LA recipients than PBO recipients. Two Grade 3 (severe) ISRs occurred in CAB recipients, 1 in each cohort, but did not lead to product discontinuation in either case. Seven incident sexually transmitted infections were diagnosed in 6 participants. One HIV infection occurred in a participant 48 weeks after last injection of CAB LA: CAB was not detectable in plasma both at the time of first reactive HIV test and at the study visit 12 weeks prior to the first reactive test. Participants in Cohort 2 (unlike Cohort 1) consistently met prespecified pharmacokinetic targets of at least 95% of participants maintaining CAB trough concentrations above PA-IC90, and 80% maintaining trough concentrations above 4× PA-IC90. Study limitations include a modest sample size, a short course of injections, and a low-risk study population. CONCLUSIONS In this study, CAB LA was well tolerated at the doses and dosing intervals used. ISRs were common, but infrequently led to product discontinuation. CAB LA 600 mg every 8 weeks met pharmacokinetic targets for both male and female study participants. The safety and pharmacokinetic results observed support the further development of CAB LA, and efficacy studies of CAB LA for HIV treatment and prevention are in progress. TRIAL REGISTRATION ClinicalTrials.gov Registry: ClinicalTrials.gov Trial number: NCT02178800.
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Affiliation(s)
- Raphael J. Landovitz
- UCLA Center for Clinical AIDS Research and Education, Los Angeles, California, United States of America
| | - Sue Li
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Beatriz Grinsztejn
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Halima Dawood
- Centre for the AIDS Programme of Research in South Africa, University of KwaZulu Natal, Durban, South Africa
| | - Albert Y. Liu
- Bridge HIV, Population Health Division, San Francisco Department of Health, San Francisco, California, United States of America
| | - Manya Magnus
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, United States of America
| | | | - Ravindre Panchia
- Perinatal HIV Research Unit, Chris Hani Baragwanath Hospital, Soweto, South Africa
| | - Leslie Cottle
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Gordon Chau
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Paul Richardson
- School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Mark A. Marzinke
- School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Craig W. Hendrix
- School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Susan H. Eshleman
- School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Yinfeng Zhang
- School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | | | - Jeremy Sugarman
- School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
- Berman Institute of Bioethics, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Ryan Kofron
- UCLA Center for Clinical AIDS Research and Education, Los Angeles, California, United States of America
| | - Adeola Adeyeye
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - David Burns
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, United States of America
| | - Alex R. Rinehart
- ViiV Healthcare, Durham, North Carolina, United States of America
| | - David Margolis
- ViiV Healthcare, Durham, North Carolina, United States of America
| | | | - Myron S. Cohen
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
| | | | - Joseph J. Eron
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
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McIlleron H, Denti P, Cohn S, Mashabela F, Hoffmann JD, Shembe S, Msandiwa R, Wiesner L, Velaphi S, Lala SG, Chaisson RE, Martinson N, Dooley KE. Prevention of TB using rifampicin plus isoniazid reduces nevirapine concentrations in HIV-exposed infants. J Antimicrob Chemother 2018; 72:2028-2034. [PMID: 28419277 DOI: 10.1093/jac/dkx112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/17/2017] [Indexed: 11/14/2022] Open
Abstract
Background Newborns of HIV-infected mothers are given daily doses of nevirapine to prevent HIV-1 acquisition. Infants born to mothers with TB should also receive TB preventive therapy. TB preventive regimens include isoniazid for 6 months or rifampicin plus isoniazid for 3 months (RH preventive therapy). The effect of concomitant RH preventive therapy on nevirapine concentrations in infants is unknown. Patients and methods Tshepiso was a prospective case-control cohort study of pregnant HIV-infected women with and without TB whose newborn infants received standard doses of nevirapine for HIV prophylaxis. Infants born to mothers with TB also received RH preventive therapy. Infant plasma nevirapine concentrations were measured at 1 and 6 weeks. The effects of RH preventive therapy on nevirapine disposition were investigated in a population pharmacokinetic model. Results Of 164 infants undergoing pharmacokinetic sampling, 46 received RH preventive therapy. After adjusting for weight using allometric scaling, the model estimated a 33% reduction in nevirapine trough concentrations with RH preventive therapy compared with TB-unexposed infants not receiving concomitant rifampicin and a 30% decline in trough concentrations in a typical infant between day 7 and 35 post-partum. Conclusions Rifampicin-based TB preventative treatment reduces nevirapine concentrations significantly in HIV-exposed infants. Although the nevirapine exposures required to prevent HIV acquisition in breastfeeding infants are undefined, given the potential risks associated with underdosing nevirapine in this setting, it is prudent to avoid rifampicin-based preventive therapy in HIV-exposed children receiving prophylactic nevirapine.
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Affiliation(s)
- Helen McIlleron
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Paolo Denti
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Silvia Cohn
- Johns Hopkins University Center for Tuberculosis Research, School of Medicine, Baltimore, MD, USA
| | - Fildah Mashabela
- Perinatal HIV Research Unit (PHRU), MRC Soweto Matlosana Collaborating Center for HIV/AIDS and TB, University of the Witwatersrand, South Africa
| | - Jennifer D Hoffmann
- Johns Hopkins University Center for Tuberculosis Research, School of Medicine, Baltimore, MD, USA
| | - Saba Shembe
- Perinatal HIV Research Unit (PHRU), MRC Soweto Matlosana Collaborating Center for HIV/AIDS and TB, University of the Witwatersrand, South Africa
| | - Regina Msandiwa
- Perinatal HIV Research Unit (PHRU), MRC Soweto Matlosana Collaborating Center for HIV/AIDS and TB, University of the Witwatersrand, South Africa
| | - Lubbe Wiesner
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Sithembiso Velaphi
- Perinatal HIV Research Unit (PHRU), MRC Soweto Matlosana Collaborating Center for HIV/AIDS and TB, University of the Witwatersrand, South Africa
- Department of Paediatrics and Child Health, Chris Hani Baragwanath Academic Hospital, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Sanjay G Lala
- Perinatal HIV Research Unit (PHRU), MRC Soweto Matlosana Collaborating Center for HIV/AIDS and TB, University of the Witwatersrand, South Africa
- Department of Paediatrics and Child Health, Chris Hani Baragwanath Academic Hospital, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Richard E Chaisson
- Johns Hopkins University Center for Tuberculosis Research, School of Medicine, Baltimore, MD, USA
| | - Neil Martinson
- Perinatal HIV Research Unit (PHRU), MRC Soweto Matlosana Collaborating Center for HIV/AIDS and TB, University of the Witwatersrand, South Africa
| | - Kelly E Dooley
- Johns Hopkins University Center for Tuberculosis Research, School of Medicine, Baltimore, MD, USA
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Abaasa A, Hendrix C, Gandhi M, Anderson P, Kamali A, Kibengo F, Sanders EJ, Mutua G, Bumpus NN, Priddy F, Haberer JE. Utility of Different Adherence Measures for PrEP: Patterns and Incremental Value. AIDS Behav 2018; 22:1165-1173. [PMID: 29090394 PMCID: PMC5878836 DOI: 10.1007/s10461-017-1951-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Measuring PrEP adherence remains challenging. In 2009–2010, the International AIDS Vaccine Initiative randomized phase II trial participants to daily tenofovir disoproxil fumarate/emtricitabine or placebo in Uganda and Kenya. Adherence was measured by electronic monitoring (EM), self-report (SR), and drug concentrations in plasma and hair. Each adherence measure was categorised as low, moderate, or high and also considered continuously; the incremental value of combining measures was determined. Forty-five participants were followed over 4 months. Discrimination for EM adherence by area under receiver operating curves (AROC) was poor for SR (0.53) and best for hair (AROC 0.85). When combining hair with plasma or hair with self-report, discrimination was improved (AROC > 0.9). Self-reported adherence was of low utility by itself. Hair level was the single best PK measure to predict EM-assessed adherence; the other measurements had lower discrimination values. Combining short-term (plasma) and long-term (hair) metrics could be useful to assess patterns of drug-taking in the context of PrEP.
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Affiliation(s)
- Andrew Abaasa
- MRC/UVRI Uganda Research Unit on AIDS, P.O Box 49, Entebbe, Uganda.
| | - Craig Hendrix
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, ME, USA
| | - Monica Gandhi
- Divisions of HIV, Infectious Diseases and Global Medicine, Department of Medicine, University of California, San Francisco, CA, USA
| | - Peter Anderson
- Department of Pharmaceutical Sciences, University of Colorado, Aurora, CO, USA
| | - Anatoli Kamali
- International AIDS Vaccine Initiative, New York, NY, USA
| | - Freddie Kibengo
- MRC/UVRI Uganda Research Unit on AIDS, P.O Box 49, Entebbe, Uganda
| | - Eduard J Sanders
- Kenya Medical Research Institute, University of Oxford, Kilifi, Kenya
| | - Gaudensia Mutua
- Kenya AIDS Vaccine Initiative, University of Nairobi, Nairobi, Kenya
| | - Namandjé N Bumpus
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, ME, USA
| | - Frances Priddy
- International AIDS Vaccine Initiative, New York, NY, USA
| | - Jessica E Haberer
- Massachusetts General Hospital Global Health and Harvard Medical School, Boston, MA, USA
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Bednasz CJ, Venuto CS, Ma Q, Daar ES, Sax PE, Fischl MA, Collier AC, Smith KY, Tierney C, Yang Y, Wilding GE, Morse GD. Efavirenz Therapeutic Range in HIV-1 Treatment-Naive Participants. Ther Drug Monit 2017; 39:596-603. [PMID: 29135907 PMCID: PMC5718358 DOI: 10.1097/ftd.0000000000000443] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Efavirenz is currently suggested as an alternative to recommended antiretroviral (ARV) regimens by the Department of Health and Human Services for the treatment of HIV-1 in ARV-naive patients. A mid-dosing interval therapeutic range between 1000 and 4000 ng/mL for efavirenz has been proposed in the literature, with patients more likely to experience virologic failure below this range and adverse effects above. The current study reports an analysis of virologic outcome between those above, below, or within the reported efavirenz therapeutic range (1000-4000 ng/mL) and within subgroups. METHODS This analysis examined efavirenz plasma concentrations obtained from participants enrolled in AIDS Clinical Trials Group Study A5202. This investigation divided subjects into those who experienced virologic failure and those who did not. These subjects were further separated to investigate those who had "high," "within," or "low" plasma concentrations, based on the therapeutic range. The association between virologic failure and plasma concentration was statistically examined in addition to the variables: race/ethnicity, sex, assigned nucleos(t)ide reverse transcriptase inhibitor backbone, age at study entry, history of intravenous drug use, weight, and screening HIV-1 RNA stratification level. RESULTS In univariate analyses, a statistically significant difference was found when comparing the efavirenz concentration groups, (22 failures among the "low" concentration group [19%], 65 failures among the "within" concentration group [12%], and 11 failures among the "high" concentration group [9%]) when evaluating virologic failure as an outcome (P = 0.04). In addition, the proportion of participants with virologic failure differed across race/ethnicity groups (P = 0.03) with black non-Hispanic participants observed to have the highest rate (17%). Efavirenz concentration group, race/ethnicity, age, weight, and the interaction between efavirenz concentration group and weight were found to be significantly associated with virologic failure in multivariable logistic regression analysis. CONCLUSIONS The proposed efavirenz therapeutic range, combined with the impact of a patient's weight, is associated with virologic failure in HIV-infected ARV-naive individuals in the United States. Additional analysis is recommended to determine the most appropriate concentration value that defines the lower limit of the efavirenz therapeutic range.
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Affiliation(s)
- Cindy J. Bednasz
- AIDS Clinical Trials Group Pharmacology Specialty Laboratory, New York State Center of Excellence in Bioinformatics
and Life Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Charles S. Venuto
- AIDS Clinical Trials Group Pharmacology Specialty Laboratory, New York State Center of Excellence in Bioinformatics
and Life Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA
- Center for Human Experimental Therapeutics, University of Rochester, Rochester, NY, USA
| | - Qing Ma
- AIDS Clinical Trials Group Pharmacology Specialty Laboratory, New York State Center of Excellence in Bioinformatics
and Life Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Eric S. Daar
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center and the University of California, Los Angeles,
CA, USA
| | - Paul E. Sax
- Division of Infectious Diseases and Department of Medicine, Brigham and Women’s Hospital and Harvard Medical
School, Boston, MA, USA
| | | | - Ann C. Collier
- University of Washington School of Medicine and Harborview Medical Center, Seattle, WA, USA
| | | | - Camlin Tierney
- Statistical Data Analysis Center, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Yang Yang
- Department of Biostatistics, University at Buffalo, Buffalo, NY, USA
| | | | - Gene D. Morse
- AIDS Clinical Trials Group Pharmacology Specialty Laboratory, New York State Center of Excellence in Bioinformatics
and Life Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, Buffalo, NY, USA
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Schauer AP, Sykes C, Cottrell ML, Prince H, Kashuba ADM. Validation of an LC-MS/MS assay to simultaneously monitor the intracellular active metabolites of tenofovir, emtricitabine, and lamivudine in dried blood spots. J Pharm Biomed Anal 2017; 149:40-45. [PMID: 29100029 DOI: 10.1016/j.jpba.2017.10.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/25/2017] [Accepted: 10/26/2017] [Indexed: 01/16/2023]
Abstract
The ability to monitor adherence to antiretroviral therapy is critical for the interpretation of outcomes from clinical studies of HIV, and for optimizing patient care. The antiretrovirals tenofovir (TFV), emtricitabine (FTC), and lamivudine (3TC) are commonly included in drug regimens for HIV prevention and treatment. The active form of the drugs tenofovir diphosphate (TFVdp), emtricitabine triphosphate (FTCtp), and lamivudine triphosphate (3TCtp) are found intracellularly in erythrocytes and peripheral blood mononuclear cells (PBMCs). The ability to collect and analyze dried blood spot (DBS) samples is an attractive alternative to PBMC sampling in many resource limited settings. We developed and validated an assay to quantify all three intracellular metabolites over the range of 100-25000 fmol/sample. This assay utilizes a simple protein precipitation/liquid-liquid extraction of a single 3-mm DBS punch (from a Whatman 903 Protein Saver card) with isotopically labeled 13C5-TFVdp included as the internal standard. Following extraction, samples are analyzed by anion exchange chromatography on a Thermo Biobasic AX 5μm column with detection by electrospray ionization in the positive mode on a AB Sciex API-5000 triple quadrupole mass spectrometer with a total run time of 8min. The assay was linear over the entire range (R2>0.996). The assay was accurate (inter-assay%bias within ±3.0%) and precise (inter-assay % CV≤9.8%). The assay was also reproducible from multiple punches within a spot as well as punches from separate blood spots. Stability was established at room temperature for 3days, and at -80°C for up to 63days. Clinical samples were analyzed from subjects on Truvada®, Stribild®, Descovy®, and Triumeq® regimens and intracellular metabolites were detected in all samples as expected, indicating the assay performs well for all current formulations of TFV, FTC, and 3TC.
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Affiliation(s)
- Amanda P Schauer
- Division of Pharmacotherapy and Experimental Therapeutics, University of North Carolina at Chapel Hill, Eshelman School of Pharmacy, Chapel Hill, NC 27599, United States.
| | - Craig Sykes
- Division of Pharmacotherapy and Experimental Therapeutics, University of North Carolina at Chapel Hill, Eshelman School of Pharmacy, Chapel Hill, NC 27599, United States
| | - Mackenzie L Cottrell
- Division of Pharmacotherapy and Experimental Therapeutics, University of North Carolina at Chapel Hill, Eshelman School of Pharmacy, Chapel Hill, NC 27599, United States
| | - Heather Prince
- School of Medicine, University of North Carolina at Chapel Hill, Genetic Medicine Building, CB# 7361, 120 Mason Farm Road, Chapel Hill, NC 27599, United States
| | - Angela D M Kashuba
- Division of Pharmacotherapy and Experimental Therapeutics, University of North Carolina at Chapel Hill, Eshelman School of Pharmacy, Chapel Hill, NC 27599, United States
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Mollan KR, Tierney C, Hellwege JN, Eron JJ, Hudgens MG, Gulick RM, Haubrich R, Sax PE, Campbell TB, Daar ES, Robertson KR, Ventura D, Ma Q, Edwards DRV, Haas DW. Race/Ethnicity and the Pharmacogenetics of Reported Suicidality With Efavirenz Among Clinical Trials Participants. J Infect Dis 2017; 216:554-564. [PMID: 28931220 PMCID: PMC5853681 DOI: 10.1093/infdis/jix248] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/26/2017] [Indexed: 01/11/2023] Open
Abstract
Background We examined associations between suicidality and genotypes that predict plasma efavirenz exposure among AIDS Clinical Trials Group study participants in the United States. Methods Four clinical trials randomly assigned treatment-naive participants to efavirenz-containing regimens; suicidality was defined as reported suicidal ideation or attempted or completed suicide. Genotypes that predict plasma efavirenz exposure were defined by CYP2B6 and CYP2A6 polymorphisms. Associations were evaluated with weighted Cox proportional hazards models stratified by race/ethnicity. Additional analyses adjusted for genetic ancestry and selected covariates. Results Among 1833 participants, suicidality was documented in 41 in exposed analyses, and 34 in on-treatment analyses. In unadjusted analyses based on 12 genotype levels, suicidality increased per level in exposed (hazard ratio, 1.11; 95% confidence interval, .96-1.27) and on-treatment 1.16; 1.01-1.34) analyses. In the on-treatment analysis, the association was strongest among white but nearly null among black participants. Considering 3 metabolizer levels (extensive, intermediate and slow), slow metabolizers were at increased risk. Results were similar after baseline covariate-adjustment for genetic ancestry, sex, age, weight, injection drug use history, and psychiatric history or recent psychoactive medication. Conclusions Genotypes that predict higher plasma efavirenz exposure were associated with increased risk of suicidality. Strength of association varied by race/ethnicity.
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Affiliation(s)
| | - Camlin Tierney
- Center for Biostatistics in AIDS Research, Harvard T. H. Chan School of Public Health, and
| | | | - Joseph J Eron
- Center for AIDS Research and Departments of
- Medicine, University of North Carolina at Chapel Hill
| | | | - Roy M Gulick
- Weill Cornell Medicine, Department of Medicine, New York, and
| | | | - Paul E Sax
- Division of Infectious Diseases and Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | | | - Eric S Daar
- Los Angeles Biomedical Research Institute at Harbor–UCLA Medical Center, David Geffen School of Medicine at UCLA, California; and
| | | | - Diana Ventura
- Center for Biostatistics in AIDS Research, Harvard T. H. Chan School of Public Health, and
| | - Qing Ma
- University at Buffalo, Department of Pharmacy Practice, New York
| | - Digna R. Velez Edwards
- Department of Obstetrics and Gynecology, Vanderbilt Genetics Institute, Vanderbilt University Medical Center
| | - David W Haas
- Department of Medicine, Vanderbilt University School of Medicine, and
- Department of Internal Medicine, Meharry Medical College, Nashville, Tennessee
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Kimulwo MJ, Okendo J, Aman RA, Ogutu BR, Kokwaro GO, Ochieng DJ, Muigai AWT, Oloo FA, Ochieng W. Plasma nevirapine concentrations predict virological and adherence failure in Kenyan HIV-1 infected patients with extensive antiretroviral treatment exposure. PLoS One 2017; 12:e0172960. [PMID: 28235021 PMCID: PMC5325546 DOI: 10.1371/journal.pone.0172960] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 02/13/2017] [Indexed: 11/19/2022] Open
Abstract
Treatment failure is a key challenge in the management of HIV-1 infection. We conducted a mixed-model survey of plasma nevirapine (NVP) concentrations (cNVP) and viral load in order to examine associations with treatment and adherence outcomes among Kenyan patients on prolonged antiretroviral therapy (ART). Blood plasma was collected at 1, 4 and 24 hours post-ART dosing from 58 subjects receiving NVP-containing ART and used to determine cNVP and viral load (VL). Median duration of treatment was 42 (range, 12–156) months, and 25 (43.1%) of the patients had virologic failure (VF). cNVP was significantly lower for VF than non- VF at 1hr (mean, 2,111ng/ml vs. 3,432ng/ml, p = 0.003) and at 4hr (mean 1,625ng/ml vs. 3,999ng/ml, p = 0.001) but not at 24hr post-ART dosing. Up to 53.4%, 24.1% and 22.4% of the subjects had good, fair and poor adherence respectively. cNVP levels peaked and were > = 3μg.ml at 4 hours in a majority of patients with good adherence and those without VF. Using a threshold of 3μg/ml for optimal therapeutic nevirapine level, 74% (43/58), 65.5% (38/58) and 86% (50/58) of all patients had sub-therapeutic cNVP at 1, 4 and 24 hours respectively. cNVP at 4 hours was associated with adherence (p = 0.05) and virologic VF (p = 0.002) in a chi-square test. These mean cNVP levels differed significantly in non-parametric tests between adherence categories at 1hr (p = 0.005) and 4hrs (p = 0.01) and between ART regimen categories at 1hr (p = 0.004) and 4hrs (p<0.0001). Moreover, cNVP levels correlated inversely with VL (p< = 0.006) and positively with adherence behavior. In multivariate tests, increased early peak NVP (cNVP4) was independently predictive of lower VL (p = 0.002), while delayed high NVP peak (cNVP24) was consistent with increased VL (p = 0.033). These data strongly assert the need to integrate plasma concentrations of NVP and that of other ART drugs into routine ART management of HIV-1 patients.
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Affiliation(s)
- Maureen J. Kimulwo
- Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya
- ITROMID, Jomo Kenyatta University of Science and Technology, Nairobi, Kenya
| | - Javan Okendo
- Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya
| | - Rashid A. Aman
- Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya
- Institute of Healthcare Management, Strathmore University, Nairobi, Kenya
- African Centre for Clinical Trials, Nairobi, Kenya
| | - Bernhards R. Ogutu
- Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya
- Institute of Healthcare Management, Strathmore University, Nairobi, Kenya
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Gilbert O. Kokwaro
- Institute of Healthcare Management, Strathmore University, Nairobi, Kenya
| | - Dorothy J. Ochieng
- School of Pharmacy, MCPHS University, Worcester, Massachusetts, United States of America
| | - Anne W. T. Muigai
- ITROMID, Jomo Kenyatta University of Science and Technology, Nairobi, Kenya
| | - Florence A. Oloo
- Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya
- Department of Chemical Science and Technology, Technical University of Kenya, Nairobi, Kenya
| | - Washingtone Ochieng
- Center for Research in Therapeutic Sciences, Strathmore University, Nairobi, Kenya
- Institute of Healthcare Management, Strathmore University, Nairobi, Kenya
- Kenya Medical Research Institute, Nairobi, Kenya
- Immunology and Infectious Diseases Department, Harvard School of Public Health, Boston, Massachusetts, United States of America
- * E-mail:
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Chen X, Seifert SM, Castillo-Mancilla JR, Bushman LR, Zheng JH, Kiser JJ, MaWhinney S, Anderson PL. Model Linking Plasma and Intracellular Tenofovir/Emtricitabine with Deoxynucleoside Triphosphates. PLoS One 2016; 11:e0165505. [PMID: 27832147 PMCID: PMC5104339 DOI: 10.1371/journal.pone.0165505] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/12/2016] [Indexed: 02/07/2023] Open
Abstract
The coformulation of the nucleos(t)ide analogs (NA) tenofovir (TFV) disoproxil fumarate (TDF) and emtricitabine (FTC) is approved for HIV-infection treatment and prevention. Plasma TFV and FTC undergo complicated hybrid processes to form, accumulate, and retain as their active intracellular anabolites: TFV-diphosphate (TFV-DP) and FTC-triphosphate (FTC-TP). Such complexities manifest in nonlinear intracellular pharmacokinetics (PK). In target cells, TFV-DP/FTC-TP compete with endogenous deoxynucleoside triphosphates (dNTP) at the active site of HIV reverse transcriptase, underscoring the importance of analog:dNTP ratios for antiviral efficacy. However, NA such as TFV and FTC have the potential to disturb the dNTP pool, which could augment or reduce their efficacies. We conducted a pharmacokinetics-pharmacodynamics (PKPD) study among forty subjects receiving daily TDF/FTC (300 mg/200 mg) from the first-dose to pharmacological intracellular steady-state (30 days). TFV/FTC in plasma, TFV-DP/FTC-TP and dNTPs in peripheral blood mononuclear cells (PBMC) were quantified using validated LC/MS/MS methodologies. Concentration-time data were analyzed using nonlinear mixed effects modeling (NONMEM). Formations and the accumulation of intracellular TFV-DP/FTC-TP was driven by plasma TFV/FTC, which was described by a hybrid of first-order formation and saturation. An indirect response link model described the interplay between TFV-DP/FTC-TP and the dNTP pool change. The EC50 (interindividual variability, (%CV)) of TFV-DP and FTC-TP on the inhibition of deoxyadenosine triphosphate (dATP) and deoxycytidine triphosphate (dCTP) production were 1020 fmol/106 cells (130%) and 44.4 pmol/106 cells (82.5%), resulting in (90% prediction interval) 11% (0.45%, 53%) and 14% (2.6%, 35%) reductions. Model simulations of analog:dNTP molar ratios using IPERGAY dosing suggested that FTC significantly contributes to the protective effect of preexposure prophylaxis (PrEP). Simulation-based intracellular operational multiple dosing half-lives of TFV-DP and FTC-TP were 6.7 days and 33 hours. This model described the formation of intracellular TFV-DP/FTC-TP and the interaction with dNTPs, and can be used to simulate analog:dNTP time course for various dosing strategies.
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Affiliation(s)
- Xinhui Chen
- University of Colorado, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States of America
| | - Sharon M. Seifert
- University of Colorado, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States of America
| | - Jose R. Castillo-Mancilla
- University of Colorado, School of Medicine, Division of Infectious Diseases, Aurora, CO, United States of America
| | - Lane R. Bushman
- University of Colorado, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States of America
| | - Jia-Hua Zheng
- University of Colorado, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States of America
| | - Jennifer J. Kiser
- University of Colorado, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States of America
| | - Samantha MaWhinney
- University of Colorado, Colorado School of Public Health, Department of Biostatistics and Informatics, Aurora, CO, United States of America
| | - Peter L. Anderson
- University of Colorado, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, United States of America
- * E-mail:
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Giardiello M, Liptrott NJ, McDonald TO, Moss D, Siccardi M, Martin P, Smith D, Gurjar R, Rannard SP, Owen A. Accelerated oral nanomedicine discovery from miniaturized screening to clinical production exemplified by paediatric HIV nanotherapies. Nat Commun 2016; 7:13184. [PMID: 27767027 PMCID: PMC5078733 DOI: 10.1038/ncomms13184] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 09/08/2016] [Indexed: 12/13/2022] Open
Abstract
Considerable scope exists to vary the physical and chemical properties of nanoparticles, with subsequent impact on biological interactions; however, no accelerated process to access large nanoparticle material space is currently available, hampering the development of new nanomedicines. In particular, no clinically available nanotherapies exist for HIV populations and conventional paediatric HIV medicines are poorly available; one current paediatric formulation utilizes high ethanol concentrations to solubilize lopinavir, a poorly soluble antiretroviral. Here we apply accelerated nanomedicine discovery to generate a potential aqueous paediatric HIV nanotherapy, with clinical translation and regulatory approval for human evaluation. Our rapid small-scale screening approach yields large libraries of solid drug nanoparticles (160 individual components) targeting oral dose. Screening uses 1 mg of drug compound per library member and iterative pharmacological and chemical evaluation establishes potential candidates for progression through to clinical manufacture. The wide applicability of our strategy has implications for multiple therapy development programmes.
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Affiliation(s)
- Marco Giardiello
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Neill J. Liptrott
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Tom O. McDonald
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Darren Moss
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Marco Siccardi
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Phil Martin
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Darren Smith
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Rohan Gurjar
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
| | - Steve P. Rannard
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Andrew Owen
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Block H, 70 Pembroke Place, Liverpool L69 3GF, UK
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Pham K, Li D, Guo S, Penzak S, Dong X. Development and in vivo evaluation of child-friendly lopinavir/ritonavir pediatric granules utilizing novel in situ self-assembly nanoparticles. J Control Release 2016; 226:88-97. [PMID: 26849919 DOI: 10.1016/j.jconrel.2016.02.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 11/18/2022]
Abstract
The aim of this study was to develop a nanotechnology to formulate a fixed-dose combination of poorly water-soluble drugs in a children-friendly, flexible solid dosage form. For diseases like HIV, pediatric patients are taking multiple drugs for effective treatments. Fixed-dose combinations could reduce pill burdens and costs as well as improving patient adherence. However, development of fixed-dose combinations of poorly water-soluble drugs for pediatric formulations is very challenging. We discovered a novel nanotechnology that produced in situ self-assembly nanoparticles (ISNPs) when the ISNP granules were introduced to water. In this study, antiretroviral drug granules, including lopinavir (LPV) ISNP granules and a fixed-dose combination of LPV/ritonavir (RTV) ISNP granules, were prepared using the ISNP nanotechnology, which spontaneously produced drug-loaded ISNPs in contact with water. Drug-loaded ISNPs had particle size less than 158nm with mono-dispersed distribution, over 95% entrapment efficiency for both LPV and RTV and stability over 8h in simulated physiological conditions. Drug-loaded ISNP granules with about 16% of LPV and 4% of RTV were palatable and stable at room temperature over 6months. Furthermore, LPV/RTV ISNP granules displayed a 2.56-fold increase in bioavailability and significantly increased LPV concentrations in tested tissues, especially in HIV sanctuary sites, as compared to the commercial LPV/RTV tablet (Kaletra®) in rats. Overall, the results demonstrated that the novel ISNP nanotechnology is a promising platform to manufacture palatable, "heat" stable, and flexible pediatric granules for fixed-dose combinations that can be used as sachets and sprinkles. To the best of our knowledge, this is the first report on this kind of novel nanotechnology for pediatric fixed-dose combinations of poorly water-soluble drugs.
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Affiliation(s)
- Kevin Pham
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Diana Li
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Shujie Guo
- State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Scott Penzak
- Department of Pharmacotherapy, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Xiaowei Dong
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, TX, USA.
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Dumond JB, Francis O, Cottrell M, Trezza C, Prince HM, Mollan K, Sykes C, Torrice C, White N, Malone S, Wang R, Van Dam C, Patterson KB, Hudgens MG, Sharpless NE, Forrest A. Tenofovir/emtricitabine metabolites and endogenous nucleotide exposures are associated with p16(INK4a) expression in subjects on combination therapy. Antivir Ther 2016; 21:441-5. [PMID: 26731175 PMCID: PMC5266614 DOI: 10.3851/imp3017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND HIV may amplify immunological, physiological and functional changes of ageing. We determined associations of frailty phenotype, a T-cell senescence marker (p16(INK4a) expression), age and demographics with exposures of the intracellular metabolites (IM) and endogenous nucleotides (EN) of tenofovir/emtricitabine (TFV/FTC), efavirenz (EFV), atazanavir (ATV) and ritonavir (RTV). METHODS Plasma and peripheral blood mononuclear cell samples for drug, IM and EN concentrations were collected at four time points in HIV+ adults receiving TFV/FTC with EFV or ATV/RTV. Subjects underwent frailty phenotyping and p16(INK4a) expression analysis. Non-compartmental analysis generated an area under the curve (AUC) for each analyte. Spearman rank correlation and Kruskal-Wallis tests were used to assess associations between AUC, demographics and ageing markers, adjusting for multiple comparisons with the Holm procedure. RESULTS Subjects (n=79) ranged in age from 22-73 years (median 48 years); 48 were African-American, 24 were female, 54 received EFV. Three subjects (range 51-60 years) demonstrated frailty, with 17 subjects (range 26-60 years) demonstrating pre-frailty. Negative associations were observed between p16(INK4a) expression and each of FTC-triphosphate (r=-0.45), deoxyadenosine triphosphate (dATP; r=-0.47) and deoxycytidine triphosphate (dCTP; r=-0.57) AUCs (P-values <0.02). TFV and FTC AUCs were larger among subjects with lower renal function or higher chronological age (P-values ≤0.05). No associations were observed for EFV, ATV or RTV AUCs. CONCLUSIONS Associations of IM/EN exposure and p16(INK4a) expression observed here suggest that senescence may alter drug phosphorylation, metabolism or transport. This finding warrants further mechanistic study to ensure optimal treatment in the ageing HIV+ population. Clinicaltrials.gov NCT01180075.
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Affiliation(s)
- Julie B Dumond
- UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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Mariana N, Rusli A. Efavirenz Plasma Concentrations and HIV Viral Load in HIV/AIDS-tuberculosis Infection Patients Treated with Rifampicin. Acta Med Indones 2016; 48:10-16. [PMID: 27241539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
AIM to determine the effect of a rifampicin-containing tuberculosis regimen on efavirenz plasma concentrations and viral load in HIV/AIDS-Tuberculosis infection patients who received efavirenz-based antiretroviral therapy. METHODS plasma efavirenz concentrations and HIV viral load were measured in HIV/AIDS patients treated with 600 mg efavirenz-based antiretroviral for 3 to 6 months and in HIV/AIDS-Tuberculosis infection patients treated with similar antiretroviral regimen plus rifampicin-containing antituberculosis in Sulianti Saroso Infectious disease Hospital, Jakarta. Plasma efavirenz concentration in both groups were compared using Mann-Whitney test, while proportion of patients with viral load >40 copy/mL were analyzed with chi-square test. RESULTS forty five patients (27 with HIV/AIDS and 18 with HIV/AIDS-Tuberculosis infections) were recruited during the period of February to May 2015. The median efavirenz plasma concentration obtained from HIV/AIDS group was 0,680 mg/L(range 0,24 to 5,67 mg/L and that obtained from HIV/AIDS-Tuberculosis group was 0.685 mg/L (0.12 -2.23 mg/L) which was not significantly different statistically. The proportion of patients with viral load 40 copies/mL after 3-6 months of ARV treatment in the HIV/AIDS group was 51.9%, and in the HIV/AIDS-Tuberculosis group was 72.2%, which was not significantly different statistically (Chi Square test, p=0.291). CONCLUSION plasma efavirenz concentration in HIV/AIDS-tuberculosis patients receiving antiretroviral and rifampicin is not significantly different from that on HIV/AIDS patients without tuberculosis. Proportion of patients with viral load of >40 copy/mL is higher in HIV/AIDS-tuberculosis patients receiving rifampicin compared to HIV/AIDS patients that not receive rifampicin. However, this difference did not reach statistical significance. Confirmatory studies with bigger sample size are needed to clarify the influence of rifampicin on plasma level of efavirenzand and on viral load.
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Affiliation(s)
- Nina Mariana
- Departement of Pharmacology and Teurapeutic, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
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Charpentier C, Lê MP, Joly V, Visseaux B, Lariven S, Phung B, Yéni P, Yazdanpanah Y, Descamps D, Peytavin G, Landman R. Use of PCR Signal and Therapeutic Drug Monitoring in a Switch Cohort Study to Tenofovir/Emtricitabine/Rilpivirine: A W96 Follow-Up. PLoS One 2015; 10:e0134430. [PMID: 26226257 PMCID: PMC4520481 DOI: 10.1371/journal.pone.0134430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 06/29/2015] [Indexed: 11/24/2022] Open
Abstract
Objective To assess, in a clinical cohort, the efficacy of switching treatment in virologically-suppressed patients to tenofovir/emtricitabine/rilpivirine as a single-tablet regimen (STR) using the PCR signal of the viral load (VL) assay and plasma drug determination (C24h). Patients and methods An observational single-centre study enrolling patients with VL<50 copies/mL initiating rilpivirine-based STR. C24h and VL were performed until W48 and W96 of STR, respectively. PCRneg was defined as an undetected PCR signal. Medians (IQR) were presented. Results 116 patients were enrolled. At STR baseline, time since first antiretroviral therapy and time of virological suppression were 6 years (2–9) and 17 months (7–43), respectively. Before STR initiation, patients were receiving protease inhibitors and non-nucleoside reverse transcriptase inhibitors-based regimen in 44% and 47% of cases, respectively. Historical genotype showed virus resistant to one drug of the STR in 6 patients (5%). At W96, 17 (15%) discontinued STR due to adverse events. The proportion of patients maintaining VL <50 copies/mL on treatment was 98%, 99%, 100%, 100%, 100% and 100% at W12, W24, W36, W48, W72 and W96, respectively. Among them, 70%, 66%, 68%, 59%, 74%, 68% and 60% were PCRneg at baseline, W12, W24, W36, W48, W72 and W96, respectively. Median rilpivirine C24h was 91 ng/mL (57–141, n = 285), with 91% of rilpivirine C24h >50 ng/mL, the target effective concentration. Conclusions In this clinical cohort of virologically-suppressed patients switching to a new STR, most subjects had adequate rilpivirine C24h and displayed a high level of virological suppression with no residual viremia until W96.
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Affiliation(s)
- Charlotte Charpentier
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Virologie, F-75018, Paris, France
- * E-mail:
| | - Minh Patrick Lê
- AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Pharmacologie, F-75018, Paris, France
| | - Véronique Joly
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, F-75018, Paris, France
| | - Benoit Visseaux
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Virologie, F-75018, Paris, France
| | - Sylvie Lariven
- AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, F-75018, Paris, France
| | - Bao Phung
- AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, F-75018, Paris, France
| | - Patrick Yéni
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, F-75018, Paris, France
| | - Yazdan Yazdanpanah
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, F-75018, Paris, France
| | - Diane Descamps
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Virologie, F-75018, Paris, France
| | - Gilles Peytavin
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Laboratoire de Pharmacologie, F-75018, Paris, France
| | - Roland Landman
- IAME, UMR 1137, Univ Paris Diderot, Sorbonne Paris Cité, F-75018, Paris, France
- IAME, UMR 1137, INSERM, F-75018, Paris, France
- AP-HP, Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, F-75018, Paris, France
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Kebaabetswe PM, Stirratt MJ, McLellan-Lemal E, Henderson FL, Gray SC, Rose CE, Williams T, Paxton LA. Factors Associated with Adherence and Concordance Between Measurement Strategies in an HIV Daily Oral Tenofovir/Emtricitibine as Pre-exposure Prophylaxis (Prep) Clinical Trial, Botswana, 2007-2010. AIDS Behav 2015; 19:758-69. [PMID: 25186785 DOI: 10.1007/s10461-014-0891-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study examined study product adherence and its determinants in the Botswana oral pre-exposure prophylaxis efficacy trial. Among the 1,219 participants, the mean adherence by pill count and 3-day self-report was 94 % for each. In multivariable models, pill count adherence was significantly associated with adverse events (nausea, dizziness, vomiting) (RR 0.98 95 % CI 0.98-1.00; p = 0.03) and side effect concerns (RR 0.98 95 % CI 0.96-0.99; p = 0.01). Self-reported adherence was significantly associated with having an HIV-positive partner (RR 1.02 95 % CI 1.00-1.04; p = 0.02) and Francistown residence (RR 0.98 95 % CI 0.96, 0.99; p = 0.0001). Detectable drug concentrations showed modest associations with self-report and pill count adherence, and drug levels were higher among those self-reporting 100 % adherence than those reporting <100 %. Most common adherence barriers involved refill delays and other logistic challenges; cellphone alarm reminder use was the most common facilitator.
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Agot K, Taylor D, Corneli AL, Wang M, Ambia J, Kashuba ADM, Parker C, Lemons A, Malahleha M, Lombaard J, Van Damme L. Accuracy of Self-Report and Pill-Count Measures of Adherence in the FEM-PrEP Clinical Trial: Implications for Future HIV-Prevention Trials. AIDS Behav 2015; 19:743-51. [PMID: 25100053 PMCID: PMC4415940 DOI: 10.1007/s10461-014-0859-z] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Oral emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) has been evaluated as pre-exposure prophylaxis (PrEP). We describe the accuracy of self-reported adherence to FTC/TDF and pill counts when compared to drug concentrations in the FEM-PrEP trial. Using drug concentrations of plasma tenofovir (TFV) and intracellular tenofovir diphosphate (TFVdp) among a random sub-sample of 150 participants assigned to FTC/TDF, we estimated the positive predictive value (PPV) of four adherence measures. We also assessed factors associated with misreporting of adherence using multiple drug-concentration thresholds and explored pill use and misreporting using semi-structured interviews (SSIs). Reporting use of ≥1 pill in the previous 7 days had the highest PPV, while pill-count data consistent with missing ≤1 day had the lowest PPV. However, all four measures demonstrated poor PPV. Reported use of oral contraceptives (OR 2.26; p = 0.014) and weeks of time in the study (OR 1.02; p < 0.001) were significantly associated with misreporting adherence. Although most SSI participants said they did not misreport adherence, participant-dependent adherence measures were clearly unreliable in the FEM-PrEP trial. Pharmacokinetic monitoring remains the measure of choice until more reliable participant-dependent measures are developed.
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Affiliation(s)
- Kawango Agot
- Impact Research and Development Organization, P.O. Box 9171-40141, Kisumu, Kenya,
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Mukherjee A, Singla M, Velpandian T, Sirohiwal A, Vajpayee M, Singh R, Kabra SK, Lodha R. Pharmacokinetics of nevirapine, stavudine and lamivudine in Indian HIV-infected children receiving generic fixed dose combinations. Indian Pediatr 2015; 51:191-7. [PMID: 24736906 DOI: 10.1007/s13312-014-0382-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine the trough and two hour plasma levels of nevirapine, stavudine, and lamivudine when administered in fixed dose combinations (FDC). DESIGN Cross sectional. SETTING Tertiary care hospital in Northern India. PARTICIPANTS 79 HIV-infected children receiving antiretroviral therapy with FDCs for more than month. INTERVENTION Two-point sampling (0 and 2 hours after the morning dose). OUTCOME MEASURES Plasma concentrations of all three drugs were simultaneously assayed by liquid chromatography/mass spectroscopy. RESULTS Majority (77%) of children were receiving fixed dose combination of stavudine, lamivudine, nevirapine in the ratio of 6:30:50 mg. The median (IQR) trough and 2-hour plasma levels (µg/mL) of nevirapine, stavudine and lamivudine were 5.2 (4.0, 6.3) and 7.9 (6.0, 9.7); 0.1 (0.06, 0.16) and 1.1 (0.59, 1.6); 0.1 (0.02, 0.2) and 2.5 (1.4, 3.1), respectively. Very few children had sub-therapeutic plasma drug levels of stavudine (2.5%), lamivudine (7.6%) and nevirapine (10%). Inadequate viral suppression at 6 months follow up was significantly associated with initial high viral load, low CD4 percentage at the time of enrolment in study, and lower doses of lamivudine and stavudine. CONCLUSIONS The currently available generic pediatric fixed dose antiretroviral combinations in India provide adequate drug exposure in majority of children.
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Affiliation(s)
- Aparna Mukherjee
- Departments of Pediatrics, *Ocular Pharmacology and #Microbiology, All India Institute of Medical Sciences, New Delhi, India. Correspondence to: Dr Rakesh Lodha, Additional Professor, Department of Pediatrics, AIIMS, New Delhi, India.
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Alebouyeh M, Amini H. Rapid determination of lamivudine in human plasma by high-performance liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 975:40-4. [PMID: 25438241 DOI: 10.1016/j.jchromb.2014.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 11/01/2014] [Accepted: 11/09/2014] [Indexed: 11/18/2022]
Abstract
A simple and rapid high-performance liquid chromatographic method with spectrophotometric detection was developed for the determination of lamivudine in human plasma. Sample preparation was accomplished through protein precipitation with acetonitrile followed by aqueous phase separation using dichloromethane. Lamivudine and the internal standard acyclovir were well separated from endogenous plasma peaks on a Chromolith RP-18e column under isocratic elution with 50 mM sodium dihydrogen phosphate-triethylamine (996:4, v/v), pH 3.2 at 20 °C. Total run time at a flow-rate of 1.5 ml/min was less than 5 min. Detection was made at 278 nm. The method was specific and sensitive, with a lower quantification limit of 40 ng/ml and a detection limit of 10 ng/ml. The absolute recovery was 97.7%, while the within- and between-day coefficient of variation and percent error values of the assay method were all less than 7%. The linearity was assessed in the range of 40-2560 in plasma, with a correlation coefficient of greater than 0.999. The method was successfully applied to a bioequivalence study in healthy volunteers.
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Affiliation(s)
- Mahmoud Alebouyeh
- Food and Drug Control Research Center, FDO, Ministry of Health, Tehran, Iran
| | - Hossein Amini
- Department of Pharmacology, Neuroscience Research Center, Golestan University of Medical Science, P.O. Box: 49175-553, Gorgan, Iran.
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Sun H, Zhang T, Wu Z, Wu B. Warfarin is an effective modifier of multiple UDP-glucuronosyltransferase enzymes: evaluation of its potential to alter the pharmacokinetics of zidovudine. J Pharm Sci 2014; 104:244-56. [PMID: 25393417 DOI: 10.1002/jps.24250] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/01/2014] [Accepted: 10/17/2014] [Indexed: 12/23/2022]
Abstract
In this study, we aimed to determine the modulatory effects of warfarin (an extensively used anticoagulant drug) and its metabolites on UDP-glucuronosyltransferase (UGT) activity and to assess the potential of warfarin to alter the pharmacokinetics of zidovudine (AZT). The effects of warfarin and its metabolites on glucuronidation were determined using human and rat liver microsomes (HLM and RLM) as well as expressed UGTs. The mechanisms of warfarin-UGT interactions were explored through kinetic characterization and modeling. Pharmacokinetic studies with rats were performed to evaluate the potential of warfarin to alter the pharmacokinetics of AZT. We found that warfarin was an effective modifier of a panel of UGT enzymes. The effects of warfarin on glucuronidation were inhibitory for UGT1A1, 2B7, and 2B17, but activating for UGT1A3. Mixed effects were observed for UGT1A7 and 1A9. Consistent with its inhibitory effects on UGT2B7 activity, warfarin inhibited AZT glucuronidation in HLM (Ki = 74.9-96.3 μM) and RLM (Ki = 190-230 μM). Inhibition of AZT glucuronidation by UGT2B7, HLM, and RLM was also observed with several hydroxylated metabolites of warfarin. Moreover, the systemic exposure (AUC) of AZT in rats was increased by a 1.5- to 2.1-fold upon warfarin coadministration. The elevated AUC was associated with suppressed glucuronidation that was probably attained through a combined action of warfarin and its hydroxylated metabolites. In conclusion, the activities of multiple UGT enzymes can be modulated by warfarin and the nature of modulation was isoform dependent. Also, pharmacokinetic interactions of zidovudine with warfarin were highly possible through inhibition of UGT metabolism.
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Affiliation(s)
- Hua Sun
- Division of Pharmaceutics, College of Pharmacy, Jinan University, Guangzhou, 510632, China
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Grégoire M, Deslandes G, Renaud C, Bouquié R, Allavena C, Raffi F, Jolliet P, Dailly E. A liquid chromatography-tandem mass spectrometry assay for quantification of rilpivirine and dolutegravir in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 971:1-9. [PMID: 25261833 DOI: 10.1016/j.jchromb.2014.09.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 08/27/2014] [Accepted: 09/07/2014] [Indexed: 11/19/2022]
Abstract
A liquid chromatography-tandem mass spectrometry assay requiring a 100μL aliquot of human plasma for simultaneous determination of rilpivirine, a second generation non-nucleoside reverse transcriptase inhibitors of HIV and dolutegravir, a novel integrase stand transfer inhibitors of HIV concentrations has been developed. Sample pre-treatment is limited to protein precipitation with a mixture of methanol and zinc sulfate. After centrifugation the supernatant is injected in the chromatographic system, which consists of on-line solid phase extraction followed by separation on a phenyl-hexyl column. This 2.5min method, with its simple sample preparation provides sensitive (the limit of quantitation is 25ng/mL for each compound), accurate and precise (the intra-day and inter-day imprecision and inaccuracy are lower than 15%) quantification of the plasma concentration of these drugs and can be used for therapeutic drug monitoring in patients infected with HIV.
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Affiliation(s)
- M Grégoire
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France
| | - G Deslandes
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France
| | - C Renaud
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France
| | - R Bouquié
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France; EA 4275 Biostatistique, Recherche Clinique et Mesures Subjectives en Santé, Faculté de Médecine-Pharmacie, Université de Nantes, France
| | - C Allavena
- Infectious Diseases Department, CHU de Nantes, Nantes, France
| | - F Raffi
- Infectious Diseases Department, CHU de Nantes, Nantes, France
| | - P Jolliet
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France; EA 4275 Biostatistique, Recherche Clinique et Mesures Subjectives en Santé, Faculté de Médecine-Pharmacie, Université de Nantes, France
| | - E Dailly
- Clinical Pharmacology Department, CHU de Nantes, Nantes, France; EA 3826 Thérapeutiques Cliniques et Expérimentales des Infections, Faculté de Médecine-Pharmacie, Université de Nantes, France.
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Matthews LT, Heffron R, Mugo NR, Cohen CR, Hendrix CW, Celum C, Bangsberg DR, Baeten JM. High medication adherence during periconception periods among HIV-1-uninfected women participating in a clinical trial of antiretroviral pre-exposure prophylaxis. J Acquir Immune Defic Syndr 2014; 67:91-7. [PMID: 25118795 PMCID: PMC4149628 DOI: 10.1097/qai.0000000000000246] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 05/23/2014] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Pre-exposure prophylaxis (PrEP) may be an important safer conception strategy for HIV-1-uninfected women with HIV-1-infected partners. Understanding medication adherence in this population may inform whether PrEP is a feasible safer conception strategy. METHODS We evaluated predictors of pregnancy and adherence to study medication among HIV-1-uninfected women enrolled in a randomized placebo-controlled trial of PrEP among African HIV-1-serodiscordant couples. Participants were counseled on HIV-1 risk reduction, contraception, and adherence and tested for pregnancy at monthly study visits. Pill counts of dispensed drug were performed and, at a subset of visits, plasma was collected to measure active drug concentration. RESULTS Among 1785 women, pregnancy incidence was 10.2 per 100 person-years. Younger age, not using contraception, having an additional sexual partner, and reporting unprotected sex were associated with increased likelihood of pregnancy. Monthly clinic pill counts estimated that women experiencing pregnancy took 97% of prescribed doses overall, with at least 80% pill adherence for 98% of study months, and no difference in adherence in the periconception period compared with previous periods (P = 0.98). Tenofovir was detected in plasma at 71% of visits where pregnancy was discovered. By multiple measures, adherence was similar for women experiencing and not experiencing pregnancy (P ≥ 0.1). CONCLUSIONS In this clinical trial of PrEP, pregnancy incidence was 10% per year despite excellent access to effective contraception. Women experiencing pregnancy had high medication adherence, suggesting that PrEP may be an acceptable and feasible safer conception strategy for HIV-1-uninfected women with HIV-1-serodiscordant partners.
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Affiliation(s)
- Lynn T. Matthews
- Division of Infectious Disease and Center for Global Health, Massachusetts General Hospital, Boston, MA
- Division of Infectious Disease, Beth Israel Deaconess Medical Center, Boston, MA
| | - Renee Heffron
- Department of Global Health, University of Washington, Seattle, WA
| | - Nelly R. Mugo
- Department of Global Health, University of Washington, Seattle, WA
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Craig R. Cohen
- Department of Obstetrics, Gynecology and Reproductive Sciences, Bixby Center for Global Reproductive Health, University of California San Francisco, San Francisco, CA
| | | | - Connie Celum
- Department of Global Health, University of Washington, Seattle, WA
- Department of Medicine, University of Washington, Seattle, WA; and
- Department of Epidemiology, University of Washington, Seattle, WA
| | - David R. Bangsberg
- Division of Infectious Disease and Center for Global Health, Massachusetts General Hospital, Boston, MA
- Division of Infectious Disease, Beth Israel Deaconess Medical Center, Boston, MA
| | - Jared M. Baeten
- Department of Global Health, University of Washington, Seattle, WA
- Department of Medicine, University of Washington, Seattle, WA; and
- Department of Epidemiology, University of Washington, Seattle, WA
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Kayentao K, Guirou EA, Doumbo OK, Venkatesan M, Plowe CV, Parsons TL, Hendrix CW, Nyunt MM. Preliminary study of quinine pharmacokinetics in pregnant women with malaria-HIV co-infection. Am J Trop Med Hyg 2014; 90:530-534. [PMID: 24420779 PMCID: PMC3945700 DOI: 10.4269/ajtmh.13-0655] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pregnant women bear the greatest burden of malaria–human immunodeficiency virus co-infection. Previous studies suggest that interaction with antiretroviral drugs may compromise antimalarial pharmacokinetics and treatment outcomes. We conducted a preliminary clinical study to assess quinine pharmacokinetics in Malian pregnant women with acute malaria who reported taking nevirapine-based antiretroviral therapy. Of seven women, six had stable concentrations of nevirapine in the plasma and one had none. Quinine concentrations were lower, and its metabolite 3-hydroxyquinine higher, in the six women with nevirapine than in the one without, and quinine concentrations were below the recommended therapeutic range in 50% of the women. This preliminary observation warrants further research to understand the impact of long-term antiretroviral therapy on the treatment of acute malaria.
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Affiliation(s)
| | | | | | | | | | | | | | - Myaing M. Nyunt
- *Address correspondence to Myaing M. Nyunt, 615 North Wolfe Street, E5541, Baltimore, MD 21205. E-mail:
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Vourvahis M, Plotka A, Mendes da Costa L, Fang A, Heera J. Pharmacokinetic interaction between maraviroc and fosamprenavir-ritonavir: an open-label, fixed-sequence study in healthy subjects. Antimicrob Agents Chemother 2013; 57:6158-64. [PMID: 24080663 PMCID: PMC3837847 DOI: 10.1128/aac.01098-13] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 09/21/2013] [Indexed: 11/20/2022] Open
Abstract
This open-label, fixed-sequence, phase 1 study evaluated the pharmacokinetic interaction between maraviroc (MVC) and ritonavir-boosted fosamprenavir (FPV/r) in healthy subjects. In period 1, subjects received 300 mg of MVC twice daily (BID; cohort 1) or once daily (QD; cohort 2) for 5 days. In period 2, cohort 1 subjects received 700/100 mg of FPV/r BID alone on days 1 to 10 and then FPV/r at 700/100 mg BID plus MVC at 300 mg BID on days 11 to 20; cohort 2 subjects received FPV/r at 1,400/100 mg QD alone on days 1 to 10 and then FPV/r at 1,400/100 mg QD plus MVC at 300 mg QD on days 11 to 20. Pharmacokinetic parameters, assessed on day 5 of period 1 and on days 10 and 20 of period 2, included the maximum plasma concentration (Cmax), the concentration at end of dosing interval (Cτ), and the area under the curve over dosing interval (AUCτ). Safety and tolerability were also assessed. MVC geometric mean AUCτ, Cmax, and Cτ were increased by 149, 52, and 374%, respectively, after BID dosing with FPV/r, and by 126, 45, and 80%, respectively, after QD dosing. Amprenavir (the active form of the prodrug fosamprenavir) and ritonavir exposures were decreased in the presence of MVC with amprenavir AUCτ, Cmax, and Cτ decreased by 34 to 36% in the presence of FPV/r plus maraviroc BID and by 15 to 30% with FPV/r plus MVC QD both compared to FPV/r alone. The overall all-causality adverse-event (AE) incidence rate was 96.4%; all AEs were of mild or moderate severity. Commonly reported treatment-related AEs (>20% of patients overall) included diarrhea, fatigue, abdominal discomfort, headache, and nausea. No serious AEs or deaths occurred. In summary, maraviroc exposure increased in the presence of FPV/r, whereas MVC coadministration decreased amprenavir and ritonavir exposures. MVC dosed at 300 mg BID with FPV/r is not recommended due to concerns of lower amprenavir exposures; however, no dose adjustment is warranted with MVC at 150 mg BID in combination with FPV/r based on the available clinical data. MVC plus FPV/r was generally well tolerated; no new safety signals were detected.
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Affiliation(s)
| | - Anna Plotka
- Pfizer, Inc., Collegeville, Pennsylvania, USA
| | | | - Annie Fang
- Pfizer Global Research and Development, New York, New York, USA
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Srivastava P, Moorthy GS, Gross R, Barrett JS. A sensitive and selective liquid chromatography/tandem mass spectrometry method for quantitative analysis of efavirenz in human plasma. PLoS One 2013; 8:e63305. [PMID: 23755102 PMCID: PMC3673986 DOI: 10.1371/journal.pone.0063305] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Accepted: 04/01/2013] [Indexed: 11/19/2022] Open
Abstract
A selective and a highly sensitive method for the determination of the non-nucleoside reverse transcriptase inhibitor (NNRTI), efavirenz, in human plasma has been developed and fully validated based on high performance liquid chromatography tandem mass spectrometry (LC-MS/MS). Sample preparation involved protein precipitation followed by one to one dilution with water. The analyte, efavirenz was separated by high performance liquid chromatography and detected with tandem mass spectrometry in negative ionization mode with multiple reaction monitoring. Efavirenz and ¹³C₆-efavirenz (Internal Standard), respectively, were detected via the following MRM transitions: m/z 314.20243.90 and m/z 320.20249.90. A gradient program was used to elute the analytes using 0.1% formic acid in water and 0.1% formic acid in acetonitrile as mobile phase solvents, at a flow-rate of 0.3 mL/min. The total run time was 5 min and the retention times for the internal standard (¹³C₆-efavirenz) and efavirenz was approximately 2.6 min. The calibration curves showed linearity (coefficient of regression, r>0.99) over the concentration range of 1.0-2,500 ng/mL. The intraday precision based on the standard deviation of replicates of lower limit of quantification (LLOQ) was 9.24% and for quality control (QC) samples ranged from 2.41% to 6.42% and with accuracy from 112% and 100-111% for LLOQ and QC samples. The inter day precision was 12.3% and 3.03-9.18% for LLOQ and quality controls samples, and the accuracy was 108% and 95.2-108% for LLOQ and QC samples. Stability studies showed that efavirenz was stable during the expected conditions for sample preparation and storage. The lower limit of quantification for efavirenz was 1 ng/mL. The analytical method showed excellent sensitivity, precision, and accuracy. This method is robust and is being successfully applied for therapeutic drug monitoring and pharmacokinetic studies in HIV-infected patients.
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Affiliation(s)
- Praveen Srivastava
- Division of Clinical Pharmacology & Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
| | - Ganesh S. Moorthy
- Division of Clinical Pharmacology & Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- * E-mail:
| | - Robert Gross
- Departments of Pediatrics, Medicine and Biostatistics and Epidemiology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Jeffrey S. Barrett
- Division of Clinical Pharmacology & Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States of America
- Departments of Pediatrics, Medicine and Biostatistics and Epidemiology, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, United States of America
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