1
|
Mennecier A, Matoka B, Wilfred-Tonga MM, Chunda-Liyoka C, Mwiya M, Nagot N, Molès JP, Van de Perre P, Kankasa C, King R. Facilitators and barriers to infant post-natal HIV prophylaxis, a qualitative sub-study of the PROMISE-EPI trial in Lusaka, Zambia. Front Public Health 2023; 11:1242904. [PMID: 37663847 PMCID: PMC10469758 DOI: 10.3389/fpubh.2023.1242904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023] Open
Abstract
Background Infant post-natal prophylaxis (PNP) is used to prevent HIV transmission through breastfeeding. The WHO edited recommendations but so far there is no consensus on the duration of prophylaxis and the type of drug used depends on national guidelines. In Zambia, the national recommendations include a three-drug prophylaxis, composed of a dispersible combined tablet of zidovudine (AZT) and lamivudine (3TC) and an oral suspension of nevirapine (NVP) for 12 weeks or until the mother's viral load is <1,000 cp/mL. The PROMISE-EPI study, modified the PNP regimen to lamivudine only, initiated at 6 weeks and continued until 12 months to all HIV exposed uninfected infants of virally unsuppressed mothers. Our aim in this analysis was to identify barriers and facilitators to this extended PNP, the keystone toward an effective prevention. Methods Individual interviews and focus group discussion (FGD) were conducted with PROMISE-EPI participants who had received prophylaxis for their children from the national program up to 6 weeks and then lamivudine oral solution in PROMISE-EPI study. Health care providers and PROMISE-EPI staff were also interviewed. Sessions were recorded, transcribed verbatim and translated from local languages into English. An initial code-book was designed and then adapted on the basis of the emerging themes, to allow a descriptive thematic analysis. Results More barriers to PNP adherence were identified with triple drug prophylaxis than with lamivudine. These barriers were related to the formulation and bitter taste of AZT/3TC tablets. The ready to use formulation and sweet taste of lamivudine syrup were appreciated by mothers. Extended PNP proposed in the PROMISE-EPI study was globally well accepted and strategies were found to increase adherence. Adherence to lamivudine appeared to be better than the mothers' adherence to their own antiretroviral therapy. Conclusion Accompanying mothers living with HIV and giving them the choice of the PNP to prevent transmission via breastfeeding (type of PNP regimen and extended PNP in non-adherent mothers), may be one of the keys to reducing the burden of pediatric HIV acquisition in low and middle income countries.
Collapse
Affiliation(s)
- Anaïs Mennecier
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Beauty Matoka
- Pediatric Centre of Excellence, University Teaching Hospital, Lusaka, Zambia
| | | | | | - Mwiya Mwiya
- Pediatric Centre of Excellence, University Teaching Hospital, Lusaka, Zambia
| | - Nicolas Nagot
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Jean-Pierre Molès
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | - Chipepo Kankasa
- Pediatric Centre of Excellence, University Teaching Hospital, Lusaka, Zambia
| | - Rachel King
- Pathogenesis and Control of Chronic and Emerging Infections, Montpellier University, INSERM, EFS, CHU Montpellier, Montpellier, France
| | | |
Collapse
|
2
|
Mayasi Ngongo N, Kamangu Ntambwe E, Situakibanza Nani-Tuma H, Mbula Mambimbi M, Mandina Ndona M, Longokolo Mashi M, Bepouka Izizag B, Lukiana T, Odio Ossam J, Mangala Sonzi D, Maes N, Moutschen M, El Moussaoui M, Darcis G. Human Immunodeficiency Virus Viral Load Monitoring and Rate of Virologic Suppression Among Patients Receiving Antiretroviral Therapy in Democratic Republic of the Congo, 2013-2020. Open Forum Infect Dis 2023; 10:ofad242. [PMID: 37363052 PMCID: PMC10287095 DOI: 10.1093/ofid/ofad242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/02/2023] [Indexed: 06/28/2023] Open
Abstract
Background Antiretroviral therapy (ART) expansion and viral load as a treatment monitoring approach have increased the demand for viral load testing. Many hurdles affect the coverage, quality, and use of viral load results. Estimates of viral load monitoring and viral suppression rates are needed to assess the performance of ART programs and improve human immunodeficiency virus (HIV) management outcomes. Methods People with HIV (PWH) viral load monitoring data were routinely collected in 84 health facilities in Kinshasa, Democratic Republic of the Congo (DRC), between 2013 and 2020. The number of PWH under ART, the number of participants with at least 1 viral load test result, the rate of viral suppression (defined as ≤1000 HIV ribonucleic acid copies per mL), and the mean turnaround time from sample collection to release of viral load test results were collected together with clinical data. Results A total of 14 057 PWH were included in the analysis. People with HIV were mainly enrolled after the "test and treat" implementation. The patients were followed for a median period of 27 months. The proportion of PWH with at least 1 available viral load largely increased in recent years. The delay from sample collection to release of viral load test results decreased overtime, from 35 days in 2018 to 16 days in 2020. Pregnancy and advanced HIV disease were associated with a lower chance of viral suppression. Conclusions There has been considerable success in increasing viral load access for all PWH under therapy in DRC. Nevertheless, viral load testing should be intensified with a particular effort to be made in groups at higher risk of viral failure.
Collapse
Affiliation(s)
- Nadine Mayasi Ngongo
- Correspondence: Gilles Darcis, MD, PhD, Avenue de l’hôpital 1, 4000 Liège, Belgium (); Nadine Mayasi Ngongo, MD, PhD, Avenue de l’hôpital 1, 4000 Liège, Belgium (nadiamayas02@gmail)
| | - Erick Kamangu Ntambwe
- Department of Molecular Biology of Basic Sciences, University of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Hippolyte Situakibanza Nani-Tuma
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Marcel Mbula Mambimbi
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Madone Mandina Ndona
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Murielle Longokolo Mashi
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Ben Bepouka Izizag
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Tuna Lukiana
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Jérôme Odio Ossam
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Donatien Mangala Sonzi
- Department of Internal Medicine, Infectious and Tropical Diseases, University Hospital of Kinshasa, Kinshasa, Democratic Republic of the Congo
| | - Nathalie Maes
- Biostatistics and Research Method Center (B-STAT), University Hospital of Liège, Liège, Belgium
| | - Michel Moutschen
- Department of Internal Medicine and Infectious Diseases, Liège University Hospital, Liège, Belgium
- AIDS Reference Laboratory, University of Liège, Liège, Belgium
| | - Majdouline El Moussaoui
- Department of Internal Medicine and Infectious Diseases, Liège University Hospital, Liège, Belgium
| | - Gilles Darcis
- Correspondence: Gilles Darcis, MD, PhD, Avenue de l’hôpital 1, 4000 Liège, Belgium (); Nadine Mayasi Ngongo, MD, PhD, Avenue de l’hôpital 1, 4000 Liège, Belgium (nadiamayas02@gmail)
| |
Collapse
|
3
|
Yan J, Zhang W, Luo H, Wang X, Ruan L. Development and validation of a scoring system for the prediction of HIV drug resistance in Hubei province, China. Front Cell Infect Microbiol 2023; 13:1147477. [PMID: 37234779 PMCID: PMC10208424 DOI: 10.3389/fcimb.2023.1147477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Objective The present study aimed to build and validate a new nomogram-based scoring system for the prediction of HIV drug resistance (HIVDR). Design and methods Totally 618 patients with HIV/AIDS were included. The predictive model was created using a retrospective set (N = 427) and internally validated with the remaining cases (N = 191). Multivariable logistic regression analysis was carried out to fit a model using candidate variables selected by Least absolute shrinkage and selection operator (LASSO) regression. The predictive model was first presented as a nomogram, then transformed into a simple and convenient scoring system and tested in the internal validation set. Results The developed scoring system consisted of age (2 points), duration of ART (5 points), treatment adherence (4 points), CD4 T cells (1 point) and HIV viral load (1 point). With a cutoff value of 7.5 points, the AUC, sensitivity, specificity, PLR and NLR values were 0.812, 82.13%, 64.55%, 2.32 and 0.28, respectively, in the training set. The novel scoring system exhibited a favorable diagnostic performance in both the training and validation sets. Conclusion The novel scoring system can be used for individualized prediction of HIVDR patients. It has satisfactory accuracy and good calibration, which is beneficial for clinical practice.
Collapse
Affiliation(s)
- Jisong Yan
- Department of Respiratory and Critical Care Medicine, Wuhan Jinyintan Hospital, Tongji Medical College of Huazhong University of Science and Technology, Hubei Clinical Research Center for Infectious Diseases, Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences, Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Wenyuan Zhang
- Department of Infectious Diseases, Wuhan Jinyintan Hospital, Tongji Medical College of Huazhong University of Science and Technology, Hubei Clinical Research Center for Infectious Diseases, Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences, Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Hong Luo
- Department of Respiratory and Critical Care Medicine, Wuhan Jinyintan Hospital, Tongji Medical College of Huazhong University of Science and Technology, Hubei Clinical Research Center for Infectious Diseases, Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences, Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Xianguang Wang
- Department of Respiratory and Critical Care Medicine, Wuhan Jinyintan Hospital, Tongji Medical College of Huazhong University of Science and Technology, Hubei Clinical Research Center for Infectious Diseases, Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences, Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Wuhan, Hubei, China
| | - Lianguo Ruan
- Department of Infectious Diseases, Wuhan Jinyintan Hospital, Tongji Medical College of Huazhong University of Science and Technology, Hubei Clinical Research Center for Infectious Diseases, Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences, Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Wuhan, Hubei, China
| |
Collapse
|
4
|
Ma H, Hu Z, Wang Z, Ma Y, Zhai H, Li J. Development and Validation of a New Comprehensive Assessment Scale of HIV-Related Psychological Distress in China: A Methodological Study. J Assoc Nurses AIDS Care 2023; 34:292-306. [PMID: 37067998 DOI: 10.1097/jnc.0000000000000402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
ABSTRACT Instruments evaluating HIV-related psychological distress (HRPD) in people living with HIV may lack sensitivity to capture patients' psychological burden. We developed a comprehensive scale measuring HRPD and evaluated its psychometric properties. A mixed-method study was conducted from July 2021 to April 2022; it involved a literature review, semistructured interviews (n = 15), three rounds of panel discussions, two rounds of Delphi studies (n = 20), a pilot test (n = 20) to generate new scale items, and a cross-sectional survey (n = 659) to evaluate the psychometric properties of the HIV-related psychological distress scale. The scale contains 22 items across 4 subscales (i.e., disease-related distress, treatment adherence distress, identity distress, and disclosure distress). The confirmatory factor analysis revealed high goodness of fit (χ2/df = 2.412, comparative fit index = 0.916, incremental fit index = 0.917, and Tucker‒Lewis index = 0.902), showing that the HIV-related psychological distress scale is a reliable (Cronbach's α = 0.871 overall) and valid scale for evaluating HRPD in China and can be used to dynamically evaluate and monitor HRPD levels during patient follow-up.
Collapse
Affiliation(s)
- Haiqi Ma
- Haiqi Ma, MSN, RN, is a Graduate Student, School of Nursing, Southern Medical University, Guangzhou, Guangdong, China. Zhiguang Hu, BA, is a General Practitioner, Hongshan Street Community Health Service Center, Huangpu District, Guangzhou, Guangdong, China. Zhongqing Wang, MSN, is a Social Worker, University of Chinese Academy of Sciences Education Foundation, Beijing, China. Yue Ma, MSN, RN, is a Lecturer, School of Nursing, Southern Medical University, Guangzhou, Guangdong, China. Huimin Zhai, MSN, RN, is a Professor, School of Nursing, Southern Medical University, Guangzhou, Guangdong, China. Juan Li, MSN, RN, is a Lecturer, School of Nursing, Southern Medical University, Guangzhou, Guangdong, China
| | | | | | | | | | | |
Collapse
|
5
|
Gawler N, Reynolds SJ, Hsiao NY, Clarke W, Maartens G, Abrams EJ, Myer L, Redd AD, Phillips TK. Routine Antiretroviral Pharmacy Refill Information Can Predict Failure Postpartum in Previously Suppressed South African Women With HIV. Open Forum Infect Dis 2022; 9:ofac483. [PMID: 36275867 PMCID: PMC9578152 DOI: 10.1093/ofid/ofac483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/14/2022] [Indexed: 11/14/2022] Open
Abstract
Background Detection of antiretrovirals (ARVs) in biological specimens is a reliable, objective way to measure adherence. However, routine ARV testing is not feasible in many high-burden settings. This study explored if pharmacy data could accurately predict HIV viremia postpartum in previously virally suppressed women. Methods South African women with HIV who initiated antiretroviral therapy (ART) during pregnancy and achieved viral suppression (VS; viral load [VL]≤50 copies/mL) were followed postpartum; during follow-up, plasma VL was measured and ARV adherence self-reported. A portion of samples were tested for the presence of ARV using mass spectrometry. Patient-level routine pharmacy data were used to classify if women should have the drug in hand for the past 7 days before the visit date. Logistic regressions were used to calculate associations between adherence and viral nonsuppression (VNS; VL > 50) or failure (VF; VL > 1000) at the first study visit of women who had ARV measured. Data for all women were examined for associations of self-reported adherence and drug in hand with VS and VF at 2, 6, and 12 months postpartum. Results Women with no ARV detected were significantly more likely to have VNS (odds ratio [OR], 26.4). Having no drug in hand for 7 days was also predictive of VNS in these same women (OR, 7.0) and the full cohort (n = 572) at 3 (OR, 2.9), 6 (OR, 8.7), and 12 months (OR, 14.5). Similar results were seen for VF. Conclusions These data show that routine pharmacy data can act as a highly predictive mechanism for identifying patients at risk of VNS and VF due to nonadherence.
Collapse
Affiliation(s)
- Nicola Gawler
- Division of Epidemiology & Biostatistics, School of Public Health, University of Cape Town, Cape Town, South Africa
| | - Steven J Reynolds
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Intramural Research, NIAID, NIH, Baltimore, Maryland, USA
- Rakai Health Sciences Program, Entebbe, Uganda
| | - Nei-Yuan Hsiao
- Division of Medical Virology, University of Cape Town and National Health Laboratory Service, Cape Town, South Africa
| | - William Clarke
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Gary Maartens
- Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Elaine J Abrams
- ICAP at Columbia University, Mailman School of Public Health, and Department of Paediatrics, Vagelos College of Physicians & Surgeons, Columbia University, New York, New York, USA
| | - Landon Myer
- Division of Epidemiology & Biostatistics, School of Public Health, University of Cape Town, Cape Town, South Africa
| | - Andrew D Redd
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
- Division of Intramural Research, NIAID, NIH, Baltimore, Maryland, USA
- Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Tamsin K Phillips
- Division of Epidemiology & Biostatistics, School of Public Health, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
6
|
Breton G, Diallo OH, Cissé M, Diallo OH, Diallo NA, Soumaoro SA, Camara Y, Montoyo A, Rouzioux C, Koita Y, Peytavin G, Tubiana R, Frange P. HIV stigma limits the effectiveness of PMTCT in Guinea: the ANRS 12344-DIAVINA study. J Antimicrob Chemother 2022; 77:3093-3101. [PMID: 36031792 DOI: 10.1093/jac/dkac287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/04/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Nearly half of HIV-infected children worldwide are born in West and Central African countries where access to prevention of mother-to-child transmission of HIV (PMTCT) programmes is still limited. WHO recommends reinforced antiretroviral prophylaxis for infants at high risk of mother-to-child transmission of HIV (MTCT) but its implementation needs further investigation in the field. METHODS The prospective ANRS 12344-DIAVINA study evaluated the feasibility of a strategy combining early infant diagnosis (EID) and reinforced antiretroviral prophylaxis in high-risk infants as identified by interviews with mothers at Ignace Deen Hospital, Conakry, Guinea. RESULTS 6493 women were admitted for delivery, 6141 (94.6%) accepted HIV testing and 114 (1.9%) were HIV positive. Among these, 51 high-risk women and their 56 infants were included. At birth, a blood sample was collected for infant EID and reinforced antiretroviral prophylaxis was initiated in 48/56 infants (86%, 95% CI 77%-95%). Iron supplementation was given to 35% of infants for non-severe anaemia. Retrospective measurement of maternal plasma viral load (pVL) at delivery revealed that 52% of women had pVL < 400 copies/mL attributable to undisclosed HIV status and/or antiretroviral intake. Undisclosed HIV status was associated with self-stigmatization (85% versus 44%, P = 0.02). Based on the results of maternal pVL at delivery, 'real' high-risk infants were more frequently lost to follow-up (44% versus 8%, P < 0.01) in comparison with low-risk infants, and this was associated with mothers' stigmatization (69% versus 31%, P < 0.01). CONCLUSIONS Reinforced antiretroviral prophylaxis and EID at birth are widely feasible. However, mothers' self-disclosure of HIV status and antiretroviral intake do not allow adequate evaluation of MTCT risk, which argues for maternal pVL measurement near delivery. Furthermore, actions against stigmatization are crucial to improve PMTCT.
Collapse
Affiliation(s)
- Guillaume Breton
- Solthis, Paris, France.,Infectious Diseases, CHU Pitié-Salpêtrière, Paris, France
| | | | | | | | | | | | | | | | | | | | - Gilles Peytavin
- Pharmacologie-Toxicologie, AP-HP, Hôpital Bichat-Claude Bernard & IAME, UMR 1137, Sorbonne Paris Cité & INSERM, Université Paris Diderot, Paris, France
| | - Roland Tubiana
- Infectious Diseases, CHU Pitié-Salpêtrière, Paris, France
| | - Pierre Frange
- Clinical Microbiology, Necker-Enfants malades Hospital, Assistance Publique-Hôpitaux de Paris (APHP), EHU 7327, Institut Imagine, Université de Paris, Paris, France
| | | |
Collapse
|
7
|
Retention in care and viral suppression in the PMTCT continuum at a large referral facility in western Kenya. AIDS Behav 2022; 26:3494-3505. [PMID: 35467229 PMCID: PMC9550706 DOI: 10.1007/s10461-022-03666-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2022] [Indexed: 11/20/2022]
Abstract
Medical records of pregnant and postpartum women living with HIV and their infants attending a large referral facility in Kenya from 2015 to 2019 were analyzed to identify characteristics associated with retention in care and viral suppression. Women were stratified based on the timing of HIV care enrollment: known HIV-positive (KHP; enrolled pre-pregnancy) and newly HIV-positive (NHP; enrolled during pregnancy). Associations with retention at 18 months postpartum and viral suppression (< 1000 copies/mL) were determined. Among 856 women (20% NHP), retention was 83% for KHPs and 53% for NHPs. Viral suppression was 88% for KHPs and 93% for NHPs, but 19% of women were missing viral load results. In a competing risk model, viral suppression increased by 18% for each additional year of age but was not associated with other factors. Overall, 1.9% of 698 infants with ≥ 1 HIV test result were HIV-positive. Tailored interventions are needed to promote retention and viral load testing, particularly for NHPs, in the PMTCT continuum.
Collapse
|
8
|
van Lettow M, Tippett Barr BA, van Oosterhout JJ, Schouten E, Jahn A, Kalua T, Auld A, Nyirenda R, Wadonda N, Kim E, Landes M. The National Evaluation of Malawi's PMTCT Program (NEMAPP) study: 24-month HIV-exposed infant outcomes from a prospective cohort study. HIV Med 2021; 23:573-584. [PMID: 34970836 PMCID: PMC9303195 DOI: 10.1111/hiv.13209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/21/2021] [Accepted: 11/09/2021] [Indexed: 01/14/2023]
Abstract
OBJECTIVES Data on long-term HIV-free survival in breastfeeding, HIV-exposed infants (HEIs) are limited. The National Evaluation of Malawi's Prevention of Mother-to-Child Transmission (PMTCT) Program (NEMAPP), conducted between 2014 and 2018, evaluated mother-to-child transmission (MTCT) and infant outcomes up to 24 months postpartum. METHODS We enrolled a nationally representative cohort of HEIs at 54 health facilities across four regional strata in Malawi and used multivariable Cox regression analysis to investigate the risk of adverse outcomes (HIV transmission, infant death and loss to follow-up) to 24 months postpartum. Models, controlling for survey design, were fitted for the total cohort (n = 3462) and for a subcohort that received maternal viral load (VL) monitoring (n = 1282). RESULTS By 24 months, in 3462 HEIs, weighted cumulative MTCT was 4.9% [95% confidence interval (CI) 3.7-6.4%], 1.3% (95% CI 0.8-2.2%) of HEIs had died, 26.2% (95% CI 24.0-28.6%) had been lost to follow-up and 67.5% (95% CI 65.0-70.0%) were alive and HIV-free. Primiparity [weighted adjusted hazard ratio (aHR) 1.6; 95% CI 1.1-2.2; parity 2-3: weighted aHR 1.5; 95% CI 1.2-1.9], the mother not disclosing her HIV status to her partner (no disclosure: weighted aHR 1.3; 95% CI 1.1-1.6; no partner: weighted aHR 0.7; 95% CI 0.5-0.9), unknown maternal ART start (weighted aHR 2.0; 95% CI 1.0-3.9) and poor adherence (missed ≥ 2 days of ART in the last month: weighted aHR 1.7; 95% CI 1.2-2.2; not on ART: weighted aHR 1.7; 95% CI 1.0-2.7) were associated with adverse outcomes by 24 months. In the subcohort analysis, risk of HIV transmission or infant death was higher among HEIs whose mothers started ART post-conception (during pregnancy: weighted aHR 3.2; 95% CI 1.3-7.7; postpartum: weighted aHR 12.4; 95% CI 1.5-99.6) or when maternal viral load at enrolment was > 1000 HIV-1 RNA copies/mL (weighted aHR 15.7; 95% CI 7.8-31.3). CONCLUSIONS Infant positivity and infant mortality at 24 months were low for a breastfeeding population. Starting ART pre-conception had the greatest impact on HIV-free survival in HEIs. Further population-level reduction in MTCT may require additional intervention during breastfeeding for women new to PMTCT programmes. Pre-partum diagnosis and linkage to ART, followed by continuous engagement in care during breastfeeding can further reduce MTCT but are challenging to implement.
Collapse
Affiliation(s)
- Monique van Lettow
- Dignitas International, Zomba, Malawi.,Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,Nyanja Health Research Institute, Salima, Malawi
| | - Beth A Tippett Barr
- Nyanja Health Research Institute, Salima, Malawi.,US Centers for Disease Control and Prevention, Lilongwe, Malawi
| | - Joep J van Oosterhout
- Dignitas International, Zomba, Malawi.,Department of Medicine, College of Medicine University of Malawi, Blantyre, Malawi
| | | | - Andreas Jahn
- Malawi Ministry of Health, Department of HIV and AIDS, Lilongwe, Malawi.,International Training Education and Community Health (ITECH), Lilongwe, Malawi
| | - Thokozani Kalua
- Malawi Ministry of Health, Department of HIV and AIDS, Lilongwe, Malawi
| | - Andrew Auld
- US Centers for Disease Control and Prevention, Lilongwe, Malawi
| | - Rose Nyirenda
- Malawi Ministry of Health, Department of HIV and AIDS, Lilongwe, Malawi
| | - Nellie Wadonda
- US Centers for Disease Control and Prevention, Lilongwe, Malawi
| | - Evelyn Kim
- US Centers for Disease Control and Prevention, Lilongwe, Malawi
| | - Megan Landes
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.,Nyanja Health Research Institute, Salima, Malawi.,Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
9
|
Murnane PM, Ayieko J, Vittinghoff E, Gandhi M, Katumbi C, Milala B, Nakaye C, Kanda P, Moodley D, Nyati ME, Loftis AJ, Fowler MG, Flynn P, Currier JS, Cohen CR. Machine Learning Algorithms Using Routinely Collected Data Do Not Adequately Predict Viremia to Inform Targeted Services in Postpartum Women Living With HIV. J Acquir Immune Defic Syndr 2021; 88:439-447. [PMID: 34520443 PMCID: PMC8585692 DOI: 10.1097/qai.0000000000002800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 08/18/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Adherence to antiretroviral treatment (ART) among postpartum women with HIV is essential for optimal health and prevention of perinatal transmission. However, suboptimal adherence with subsequent viremia is common, and adherence challenges are often underreported. We aimed to predict viremia to facilitate targeted adherence support in sub-Saharan Africa during this critical period. METHODS Data are from PROMISE 1077BF/FF, which enrolled perinatal women between 2011 and 2014. This analysis includes postpartum women receiving ART per study randomization or country-specific criteria to continue from pregnancy. We aimed to predict viremia (single and confirmed events) after 3 months on ART at >50, >400, and >1000 copies/mL within 6-month intervals through 24 months. We built models with routine clinical and demographic data using the least absolute shrinkage and selection operator and SuperLearner (which incorporates multiple algorithms). RESULTS Among 1321 women included, the median age was 26 years and 96% were in WHO stage 1. Between 0 and 24 months postpartum, 42%, 31%, and 28% of women experienced viremia >50, >400, and >1000 copies/mL, respectively, at least once. Across models, the cross-validated area under the receiver operating curve ranged from 0.74 [95% confidence interval (CI): 0.72 to 0.76] to 0.78 (95% CI: 0.76 to 0.80). To achieve 90% sensitivity predicting confirmed viremia >50 copies/mL, 64% of women would be classified as high risk. CONCLUSIONS Using routinely collected data to predict viremia in >1300 postpartum women with HIV, we achieved moderate model discrimination, but insufficient to inform targeted adherence support. Psychosocial characteristics or objective adherence metrics may be required for improved prediction of viremia in this population.
Collapse
Affiliation(s)
- Pamela M. Murnane
- Department of Epidemiology & Biostatistics, University of California, San Francisco, USA
- Institute for Global Health Sciences, University of California, San Francisco, USA
| | - James Ayieko
- Center for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Eric Vittinghoff
- Department of Epidemiology & Biostatistics, University of California, San Francisco, USA
| | - Monica Gandhi
- Department of Medicine, University of California, San Francisco, USA
| | | | - Beteniko Milala
- University of North Carolina-Project Malawi, Lilongwe, Malawi
| | - Catherine Nakaye
- Makerere University-Johns Hopkins University Research Collaboration, Kampala, Uganda
| | - Peter Kanda
- Clinical Trials Research Centre, University of Zimbabwe, Harare, Zimbabwe
| | - Dhayendre Moodley
- Centre for the AIDS Programme of Research in South Africa and Department of Obstetrics and Gynaecology, School of Clinical Medicine, University of KwaZulu Natal, Durban, South Africa
| | - Mandisa E Nyati
- Perinatal HIV Research Unit, University of the Witwatersrand, Soweto, South Africa
| | - Amy James Loftis
- Institute for Global Health and Infectious Diseases, University of North Carolina Chapel Hill, USA
| | - Mary Glenn Fowler
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Pat Flynn
- Department of Infectious Diseases, St. Jude Children’s Research Hospital Memphis, USA
| | - Judith S. Currier
- Division of Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA USA
| | - Craig R. Cohen
- Institute for Global Health Sciences, University of California, San Francisco, USA
- Department of Obstetrics, Gynecology & Reproductive Sciences, University of California, San Francisco, CA USA
| |
Collapse
|
10
|
Li JZ, Stella N, Choudhary MC, Javed A, Rodriguez K, Ribaudo H, Moosa MY, Brijkumar J, Pillay S, Sunpath H, Noguera-Julian M, Paredes R, Johnson B, Edwards A, Marconi VC, Kuritzkes DR. Impact of pre-existing drug resistance on risk of virological failure in South Africa. J Antimicrob Chemother 2021; 76:1558-1563. [PMID: 33693678 DOI: 10.1093/jac/dkab062] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 02/10/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES There is conflicting evidence on the impact of pre-existing HIV drug resistance mutations (DRMs) in patients infected with non-B subtype virus. METHODS We performed a case-cohort substudy of the AIDS Drug Resistance Surveillance Study, which enrolled South African patients initiating first-line efavirenz/emtricitabine/tenofovir. Pre-ART DRMs were detected by Illumina sequencing of HIV pol and DRMs present at <20% of the viral population were labelled as minority variants (MVs). Weighted Cox proportional hazards models estimated the association between pre-ART DRMs and risk of virological failure (VF), defined as confirmed HIV-1 RNA ≥1000 copies/mL after ≥5 months of ART. RESULTS The evaluable population included 178 participants from a randomly selected subcohort (16 with VF, 162 without VF) and 83 additional participants with VF. In the subcohort, 16% of participants harboured ≥1 majority DRM. The presence of any majority DRM was associated with a 3-fold greater risk of VF (P = 0.002), which increased to 9.2-fold (P < 0.001) in those with <2 active drugs. Thirteen percent of participants harboured MV DRMs in the absence of majority DRMs. Presence of MVs alone had no significant impact on the risk of VF. Inclusion of pre-ART MVs with majority DRMs improved the sensitivity but reduced the specificity of predicting VF. CONCLUSIONS In a South African cohort, the presence of majority DRMs increased the risk of VF, especially for participants receiving <2 active drugs. The detection of drug-resistant MVs alone did not predict an increased risk of VF, but their inclusion with majority DRMs affected the sensitivity/specificity of predicting VF.
Collapse
Affiliation(s)
- Jonathan Z Li
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Natalia Stella
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Aneela Javed
- Atta ur Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Pakistan
| | | | | | | | | | | | | | | | - Roger Paredes
- IrsiCaixa AIDS Research Institute, Badalona, Catalonia, Spain
| | | | - Alex Edwards
- Emory University School of Medicine and Rollins School of Public Health, Atlanta, GA, USA
| | - Vincent C Marconi
- Emory University School of Medicine and Rollins School of Public Health, Atlanta, GA, USA
| | | |
Collapse
|
11
|
Mavhandu-Ramarumo LG, Tambe LAM, Matume ND, Katerere D, Bessong PO. Undisclosed exposure to antiretrovirals prior to treatment initiation: An exploratory analysis. South Afr J HIV Med 2021; 22:1200. [PMID: 33936791 PMCID: PMC8063556 DOI: 10.4102/sajhivmed.v22i1.1200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/19/2021] [Indexed: 11/01/2022] Open
Abstract
Background The proportion of individuals with a history of exposure ('pre-exposure') to antiretrovirals (ARVs) prior to formal initiation into antiretroviral treatment (ART) is unknown. Objectives This study describes the detection of ARVs in plasma and/or hair, of persons who self-reported no pre-exposure to ART at their first-time initiation onto ART in three clinics in the province of Limpopo, South Africa (SA). Method Concentrations of tenofovir (TDF), emtricitabine (FTC) and efavirenz (EFV) in the plasma and hair of individuals initiating ART were analysed using a validated liquid chromatography tandem mass spectrometry (LC-MS/MS) method. Next generation sequences of HIV polymerase gene were analysed with Geneious software 11.15, and drug resistance (DR) mutations were determined according to the Stanford HIV Drug-Resistance database. Participants' demographic data were collected on a structured questionnaire. Data that describe prior exposure to ARV were also collected by this self-reporting method. Results Paired blood and hair samples were collected from 77 individuals newly initiated onto ART from 2017 to 2019. We detected at least one of the drugs in the plasma or hair of 41/77 (53.2%) patients who responded with a 'no' to the question 'have you received ARVs before initiation onto ART?' Thirty-one participants (n = 31/77, 40.3%) had TDF in either plasma or hair. Emtricitabine and EFV were found in the plasma or hair of 12/77 (15.6%) and 25/77 (32.4%) of participants respectively. Six (n = 6/77, 7.792%) had all three ARVs in plasma or hair. Prevalence of DR mutations at the > 5% significance threshold level in those known to have had ARV-exposure determined by LC-MS/MS prior to ART-initiation was not significant (χ2 = 0.798; p = 0.372), when compared to those who had no prior exposure but still showed DR. Conclusion Antiretroviral levels in the hair of individuals initiating treatment imply prolonged prior-exposure to that ARV. The presence of ARV in plasma and hair of persons living with HIV (PLWH) who deny ARV-use, requires an explanation. A larger study at multiple sites and regular DR surveillance of ART-naïve PLWH will be necessary to confirm the generalisability of these findings to the wider South African population.
Collapse
Affiliation(s)
- Lufuno G Mavhandu-Ramarumo
- HIV/AIDS and Global Health Research Programme, Department of Microbiology, School of Mathematical and Natural Sciences, University of Venda, Thohoyandou, South Africa
| | - Lisa A M Tambe
- HIV/AIDS and Global Health Research Programme, Department of Microbiology, School of Mathematical and Natural Sciences, University of Venda, Thohoyandou, South Africa
| | - Nontokozo D Matume
- HIV/AIDS and Global Health Research Programme, Department of Microbiology, School of Mathematical and Natural Sciences, University of Venda, Thohoyandou, South Africa
| | - David Katerere
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Science, Tshwane University of Technology, Pretoria, South Africa
| | - Pascal O Bessong
- HIV/AIDS and Global Health Research Programme, Department of Microbiology, School of Mathematical and Natural Sciences, University of Venda, Thohoyandou, South Africa.,Center for Global Health Equity, University of Virginia, Charlottesville, United States of America
| |
Collapse
|
12
|
Early post-partum viremia predicts long-term non-suppression of viral load in HIV-positive women on ART in Malawi: Implications for the elimination of infant transmission. PLoS One 2021; 16:e0248559. [PMID: 33711066 PMCID: PMC7954347 DOI: 10.1371/journal.pone.0248559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 03/01/2021] [Indexed: 12/03/2022] Open
Abstract
Background Long-term viral load (VL) suppression among HIV-positive, reproductive-aged women on ART is key to eliminating mother-to-child transmission (MTCT) but few data exist from sub-Saharan Africa. We report trends in post-partum VL in Malawian women on ART and factors associated with detectable VL up to 24 months post-partum. Methods 1–6 months post-partum mothers, screened HIV-positive at outpatient clinics in Malawi, were enrolled (2014–2016) with their infants. At enrollment, 12- and 24-months post-partum socio-demographic and PMTCT indicators were collected. Venous samples were collected for determination of maternal VL (limit of detection 40 copies/ml). Results were returned to clinics for routine management. Results 596/1281 (46.5%) women were retained in the study to 24 months. Those retained were older (p<0.01), had higher parity (p = 0.03) and more likely to have undetectable VL at enrollment than those lost to follow-up (80.0% vs 70.2%, p<0.01). Of 590 women on ART (median 30.1 months; inter-quartile range 26.8–61.3), 442 (74.9%) with complete VL data at 3 visits were included in further analysis. Prevalence of detectable VL at 12 and 24 months was higher among women with detectable VL at enrollment than among those with undetectable VL (74 detectable VL results/66 women vs. 19/359; p<0.001). In multivariable analysis (adjusted for age, parity, education, partner disclosure, timing of ART start and self-reported adherence), detectable VL at 24 months was 9 times more likely among women with 1 prior detectable VL (aOR 9.0; 95%CI 3.5–23.0, p<0.001) and 226 times more likely for women with 2 prior detectable VLs (aOR 226.4; 95%CI 73.0–701.8, p<0.001). Conclusions Detectable virus early post-partum strongly increases risk of ongoing post-partum viremia. Due to high loss to follow-up, the true incidence of detectable VL over time is probably underestimated. These findings have implications for MTCT, as well as for the mothers, and call for intensified VL monitoring and targeted adherence support for women during pregnancy and post-partum.
Collapse
|
13
|
Dude AM, Miller ES, Garcia PM, Yee LM. Unintended pregnancy and viral suppression in pregnant women living with HIV. Am J Obstet Gynecol MFM 2021; 3:100300. [PMID: 33359637 PMCID: PMC10552848 DOI: 10.1016/j.ajogmf.2020.100300] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Approximately half of pregnancies in the United States are unintended; the likelihood of unintended pregnancy may be even higher for women living with HIV. Women with unintended pregnancies often have worse obstetrical outcomes than women who planned their pregnancies, although the relationship of unintended pregnancy to outcomes among women living with HIV in the United States is unknown. OBJECTIVE This study aimed to determine whether pregnancy intendedness among women living with HIV attending a specialty obstetrical clinic was associated with achievement of maternal viral suppression by delivery, a key component of preventing perinatal transmission of HIV. STUDY DESIGN This is a retrospective cohort study of pregnant women living with HIV who received prenatal care and had a live-born infant at a single tertiary center (2007-2014). Women were asked as part of routine clinical care whether they intended their current pregnancy. Women who expressed at their initial obstetrician visit that their pregnancy was mistimed or undesired were determined to have an unintended pregnancy. Women were considered virally suppressed when the HIV RNA viral load was <20 copies/mL. We examined whether pregnancy intendedness was associated with whether the viral load was undetectable at the time of delivery. We also determined whether women with unintended pregnancies were less likely to be on antiretroviral therapy at the time of entry to prenatal care. Wilcoxon rank-sum tests and chi-square tests were used for bivariable analyses, and logistic and linear regression were used for multivariable analyses. RESULTS Of the 215 women who met inclusion criteria, 201 (93.5%) had complete data on pregnancy intendedness. Of these 201 women, 137 (68.2%) had an unintended pregnancy. Unintended pregnancy was associated with lower odds of viral suppression at delivery (95.3% of women with planned pregnancies were virally suppressed at delivery compared with 76.6% of women with unplanned pregnancies; adjusted odds ratio, 0.22; 95% CI, 0.05-0.89, after adjusting for potential confounders). In this study, 48.9% of women with unintended pregnancies presented later in pregnancy for prenatal care (after the first trimester) compared with 21.9% of women with intended pregnancies (P<.001). Women with unintended pregnancies were also less likely to be on antiretroviral therapy before entry to prenatal care (20.4% of women with unintended pregnancies vs 50.0% of women with intended pregnancies; adjusted odds ratio, 0.35; 95% CI, 0.15-0.81; P<.001). CONCLUSION Among pregnant women living with HIV, women with an unintended pregnancy were less likely to be on antiretroviral therapy before initiating prenatal care and were less likely to be virally suppressed at the time of delivery.
Collapse
Affiliation(s)
- Annie M Dude
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL.
| | - Emily S Miller
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Patricia M Garcia
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Lynn M Yee
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| |
Collapse
|
14
|
Bessong PO, Matume ND, Tebit DM. Potential challenges to sustained viral load suppression in the HIV treatment programme in South Africa: a narrative overview. AIDS Res Ther 2021; 18:1. [PMID: 33407664 PMCID: PMC7788882 DOI: 10.1186/s12981-020-00324-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 11/16/2020] [Indexed: 12/14/2022] Open
Abstract
Background South Africa, with one of the highest HIV prevalences in the world, introduced the universal test and treat (UTT) programme in September 2016. Barriers to sustained viral suppression may include drug resistance in the pre-treated population, non-adherence, acquired resistance; pharmacokinetics and pharmacodynamics, and concurrent use of alternative treatments. Objective The purpose of this review is to highlight potential challenges to achieving sustained viral load suppression in South Africa (SA), a major expectation of the UTT initiative. Methodology Through the PRISMA approach, published articles from South Africa on transmitted drug resistance; adherence to ARV; host genetic factors in drug pharmacokinetics and pharmacodynamics, and interactions between ARV and herbal medicine were searched and reviewed. Results The level of drug resistance in the pre-treated population in South Africa has increased over the years, although it is heterogeneous across and within Provinces. At least one study has documented a pre-treated population with moderate (> 5%) or high (> 15%) levels of drug resistance in eight of the nine Provinces. The concurrent use of ARV and medicinal herbal preparation is fairly common in SA, and may be impacting negatively on adherence to ARV. Only few studies have investigated the association between the genetically diverse South African population and pharmacokinetics and pharmacodynamics of ARVs. Conclusion The increasing levels of drug resistant viruses in the pre-treated population poses a threat to viral load suppression and the sustainability of first line regimens. Drug resistance surveillance systems to track the emergence of resistant viruses, study the burden of prior exposure to ARV and the parallel use of alternative medicines, with the goal of minimizing resistance development and virologic failure are proposed for all the Provinces of South Africa. Optimal management of the different drivers of drug resistance in the pre-treated population, non-adherence, and acquired drug resistance will be beneficial in ensuring sustained viral suppression in at least 90% of those on treatment, a key component of the 90-90-90 strategy.
Collapse
|
15
|
Redd AD, Mukonda E, Hu NC, Philips TK, Zerbe A, Lesosky M, Hsiao NY, Clarke W, Reynolds SJ, Abrams EJ, Myer L. ART Adherence, Resistance, and Long-term HIV Viral Suppression in Postpartum Women. Open Forum Infect Dis 2020; 7:ofaa346. [PMID: 33072803 DOI: 10.1093/ofid/ofaa346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 08/10/2020] [Indexed: 02/05/2023] Open
Abstract
HIV+ South African women who achieved viral suppression during routine antenatal care, but later experienced a viremic episode (viral load >1000 copies/mL), were examined for presence of antiretrovirals and classified as "nonadherers" or "suboptimal adherers." Women were tested for drug resistance mutations (DRMs) at several time points and underwent viral load testing 36-60 months postpartum. Suboptimal adherers were more likely to have DRM detected during their viremic episode (P = .03) and at a subsequent viremic time point (P = .05). There was no difference in levels of viral suppression 36-60 months later in women with DRM detected vs women who had no evidence of DRM (P = .5).
Collapse
Affiliation(s)
- Andrew D Redd
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, Maryland, USA.,Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Elton Mukonda
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa
| | - Nai-Chung Hu
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa
| | - Tamsin K Philips
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa
| | - Allison Zerbe
- ICAP at Columbia University Mailman School of Public Health, New York, New York, USA
| | - Maia Lesosky
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa
| | - Nei-Yuan Hsiao
- Division of Medical Virology, Department of Pathology, University of Cape Town, Cape Town, South Africa.,National Health Laboratory Services, Groote Schuur Hospital, Cape Town, South Africa
| | - William Clarke
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Steven J Reynolds
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, Maryland, USA.,Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA.,Rakai Health Sciences Program, Kalisizo, Uganda
| | - Elaine J Abrams
- ICAP at Columbia University Mailman School of Public Health, New York, New York, USA.,Vagelos College of Physicians and Surgeons, Columbia University, New York, New York, USA
| | - Landon Myer
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa.,Centre for Infectious Diseases Epidemiology and Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
16
|
The relative contributions of HIV drug resistance, nonadherence and low-level viremia to viremic episodes on antiretroviral therapy in sub-Saharan Africa. AIDS 2020; 34:1559-1566. [PMID: 32675566 DOI: 10.1097/qad.0000000000002588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION To achieve viral suppression among more than 90% of people on antiretroviral therapy (ART), improved understanding is warranted of the modifiable causes of HIV viremic episodes. We assessed the relative contributions of drug-resistance, nonadherence and low-level viremia (LLV) (viral load 50-999 cps/ml) on viremic episodes in sub-Saharan Africa. METHODS In a multicountry adult cohort initiating nonnucleoside reverse transcriptase inhibitor-based first-line ART, viremic episodes (viral load ≥1000 cps/ml) were classified as first, viral nonsuppression at 12 months; second, virological rebound at 24 months (after initial viral suppression at 12 months); third, failure to achieve viral resuppression at 24 months (after viremic episode at 12 months). We used adjusted odds ratios from multivariable logistic regression to estimate attributable fractions for each risk factor. RESULTS Of 2737 cohort participants, 1935 had data on pretreatment drug resistance (PDR) and at least 1 viral load outcome. Viral nonsuppression episodes [173/1935 (8.9%)] were attributable to nonadherence in 30% (35% in men vs. 24% in women) and to PDR to nonnucleoside reverse transcriptase inhibitors in 10% (15% in women vs. 6% in men). Notably, at contemporary PDR prevalences of 10-25%, PDR would explain 13-30% of viral nonsuppression. Virological rebound episodes [96/1515 (6.3%)] were mostly attributable to LLV (29%) and nonadherence (14%), and only rarely to PDR (1.1%). Failures to achieve viral resuppression [66/81 (81.5%)] were mostly attributable to the presence of acquired drug resistance (34%) and only rarely to nonadherence (2.4%). CONCLUSION Effective adherence interventions could substantially reduce viral nonsuppression (especially in men) and virological rebound (especially during LLV), but would have limited effect on improving viral resuppression. Alternative ART regimens could circumvent PDR and acquired resistance.
Collapse
|
17
|
Population-level viral suppression among pregnant and postpartum women in a universal test and treat trial. AIDS 2020; 34:1407-1415. [PMID: 32472768 DOI: 10.1097/qad.0000000000002564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE(S) We sought to determine whether universal 'test and treat' (UTT) can achieve gains in viral suppression beyond universal antiretroviral treatment (ART) eligibility during pregnancy and postpartum, among women living with HIV. DESIGN A community cluster randomized trial. METHODS The SEARCH UTT trial compared an intervention of annual population testing and universal ART with a control of baseline population testing with ART by country standard, including ART eligibility for all pregnant/postpartum women, in 32 communities in Kenya and Uganda. When testing, women were asked about current pregnancy and live births over the prior year and, if HIV-infected, had their viral load measured. Between arms, we compared population-level viral suppression (HIV RNA <500 copies/ml) among all pregnant/postpartum HIV-infected women at study close (year 3). We also compared year-3 population-level viral suppression and predictors of viral suppression among all 15 to 45-year-old women by arm. RESULTS At baseline, 92 and 93% of 15 to 45-year-old women tested for HIV: HIV prevalence was 12.6 and 12.3%, in intervention and control communities, respectively. Among HIV-infected women self-reporting pregnancy/live birth, prevalence of viral suppression was 42 and 44% at baseline, and 81 and 76% (P = 0.02) at year 3, respectively. Among all 15 to 45-year-old HIV-infected women, year-3 population-level viral suppression was higher in intervention (77%) versus control (68%; P < 0.001). Pregnancy/live birth was a predictor of year-3 viral suppression in control (P = 0.016) but not intervention (P = 0.43). Younger age was a risk factor for nonsuppression in both arms. CONCLUSION The SEARCH intervention resulted in higher population viral suppression among pregnant/postpartum women than a control of baseline universal testing with ART eligibility for pregnant/postpartum women.
Collapse
|