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Sertoz R, Tekin D, Erensoy S, Biceroglu S, Kaptan F, Köse S, Ozkan H, Cetin B, Türken M, Gokengin D. Prevalence of Transmitted Drug Resistance among HIV-1 Patients in the Aegean Region: Results from the Western Part of Turkey. Curr HIV Res 2023; 21:109-116. [PMID: 37231747 DOI: 10.2174/1570162x21666230525145529] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 05/27/2023]
Abstract
OBJECTIVES This study aimed to analyze the antiretroviral drug resistance in antiretroviral treatment-naïve HIV-positive patients in the Aegean Region of Turkey from 2012 to 2019. METHODS The study included 814 plasma samples from treatment-naïve HIV-positive patients. Drug resistance analysis was performed by Sanger sequencing (SS) between 2012-2017 and by next-generation sequencing sequencing (NGS) between 2018-2019. SS was used to analyze resistance mutations in the protease (PR) and reverse transcriptase (RT) gene regions using a ViroSeq HIV-1 Genotyping System. PCR products were analyzed with an ABI3500 GeneticAnalyzer (Applied Biosystems). The sequencing of the HIV genome in the PR, RT, and integrase gene regions was carried out using MiSeq NGS technology. Drug resistance mutations and subtypes were interpreted using the Stanford University HIV-1 drug resistance database. RESULTS Transmitted drug resistance (TDR) mutation was detected in 34/814 (4.1 %) samples. Nonnucleoside reverse transcriptase inhibitor (NNRTI), nucleoside reverse transcriptase inhibitor (NRTI), and protease inhibitor (PI) mutations were identified in 1.4 % (n =12), 2.4 % (n =20), and 0.3 % (n = 3) of samples, respectively. The most common subtypes were B (53.1 %), A (10.9%), CRF29_BF (10.6%), and B + CRF02_AG (8,2%). The most common TDR mutations were E138A (3.4%), T215 revertants (1.7%), M41L (1.5%), and K103N (1.1%). CONCLUSION Transmitted drug resistance rate in the Aegean Region is compatible with national and regional data. Routine surveillance of resistance mutations may guide the safe and correct selection of initial drug combinations for antiretroviral therapy. The identification of HIV-1 subtypes and recombinant forms in Turkey may contribute to international molecular epidemiological data.
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Affiliation(s)
- Ruchan Sertoz
- Department of Medical Microbiology, Ege University Medical School, Izmir, Turkey
| | - Duygu Tekin
- Department of Medical Microbiology, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Selda Erensoy
- Department of Medical Microbiology, Ege University Medical School, Izmir, Turkey
| | - Servet Biceroglu
- Department of Medical Microbiology, Ege University Medical School, Izmir, Turkey
| | - Figen Kaptan
- Department of Clinical Microbiology and Infectious Diseases, Atatürk Training and Research Hospital, Izmir, Turkey
| | - Sukran Köse
- Department of Clinical Microbiology and Infectious Diseases, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Hulya Ozkan
- Department of Clinical Microbiology and Infectious Diseases, Bozyaka Training and Research Hospital, Izmir, Turkey
| | - Banu Cetin
- Department of Clinical Microbiology and Infectious Diseases, Celal Bayar University Medical School, Izmir, Turkey
| | - Melda Türken
- Department of Clinical Microbiology and Infectious Diseases, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Deniz Gokengin
- Department of Clinical Microbiology and Infectious Diseases, Ege University Medical School, Izmir, Turkey
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Pingarilho M, Pimentel V, Diogo I, Fernandes S, Miranda M, Pineda-Pena A, Libin P, Theys K, O. Martins MR, Vandamme AM, Camacho R, Gomes P, Abecasis A. Increasing Prevalence of HIV-1 Transmitted Drug Resistance in Portugal: Implications for First Line Treatment Recommendations. Viruses 2020; 12:E1238. [PMID: 33143301 PMCID: PMC7693025 DOI: 10.3390/v12111238] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Treatment for All recommendations have allowed access to antiretroviral (ARV) treatment for an increasing number of patients. This minimizes the transmission of infection but can potentiate the risk of transmitted (TDR) and acquired drug resistance (ADR). OBJECTIVE To study the trends of TDR and ADR in patients followed up in Portuguese hospitals between 2001 and 2017. METHODS In total, 11,911 patients of the Portuguese REGA database were included. TDR was defined as the presence of one or more surveillance drug resistance mutation according to the WHO surveillance list. Genotypic resistance to ARV was evaluated with Stanford HIVdb v7.0. Patterns of TDR, ADR and the prevalence of mutations over time were analyzed using logistic regression. RESULTS AND DISCUSSION The prevalence of TDR increased from 7.9% in 2003 to 13.1% in 2017 (p < 0.001). This was due to a significant increase in both resistance to nucleotide reverse transcriptase inhibitors (NRTIs) and non-nucleotide reverse transcriptase inhibitors (NNRTIs), from 5.6% to 6.7% (p = 0.002) and 2.9% to 8.9% (p < 0.001), respectively. TDR was associated with infection with subtype B, and with lower viral load levels (p < 0.05). The prevalence of ADR declined from 86.6% in 2001 to 51.0% in 2017 (p < 0.001), caused by decreasing drug resistance to all antiretroviral (ARV) classes (p < 0.001). CONCLUSIONS While ADR has been decreasing since 2001, TDR has been increasing, reaching a value of 13.1% by the end of 2017. It is urgently necessary to develop public health programs to monitor the levels and patterns of TDR in newly diagnosed patients.
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Affiliation(s)
- Marta Pingarilho
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical/Universidade Nova de Lisboa (IHMT/UNL), 1349–028 Lisbon, Portugal; (V.P.); (M.M.); (A.P.-P.); (M.R.O.M.); (A.-M.V.); (A.A.)
| | - Victor Pimentel
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical/Universidade Nova de Lisboa (IHMT/UNL), 1349–028 Lisbon, Portugal; (V.P.); (M.M.); (A.P.-P.); (M.R.O.M.); (A.-M.V.); (A.A.)
| | - Isabel Diogo
- Laboratório de Biologia Molecular (LMCBM, SPC, CHLO-HEM), 1349-019 Lisbon, Portugal; (I.D.); (S.F.); (P.G.)
| | - Sandra Fernandes
- Laboratório de Biologia Molecular (LMCBM, SPC, CHLO-HEM), 1349-019 Lisbon, Portugal; (I.D.); (S.F.); (P.G.)
| | - Mafalda Miranda
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical/Universidade Nova de Lisboa (IHMT/UNL), 1349–028 Lisbon, Portugal; (V.P.); (M.M.); (A.P.-P.); (M.R.O.M.); (A.-M.V.); (A.A.)
| | - Andrea Pineda-Pena
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical/Universidade Nova de Lisboa (IHMT/UNL), 1349–028 Lisbon, Portugal; (V.P.); (M.M.); (A.P.-P.); (M.R.O.M.); (A.-M.V.); (A.A.)
| | - Pieter Libin
- Department of Microbiology and Immunology, KU Leuven, Clinical and Epidemiological Virology, Rega Institute for Medical Research, 3000 Leuven, Belgium; (P.L.); (K.T.); (R.C.)
- Artificial Intelligence Lab, Department of computer science, Vrije Universiteit Brussel, 1000 Brussels, Belgium
- Interuniversity Institute of Biostatistics and statistical Bioinformatics, Data Science Institute, Hasselt University, 3500 Hasselt, Belgium
| | - Kristof Theys
- Department of Microbiology and Immunology, KU Leuven, Clinical and Epidemiological Virology, Rega Institute for Medical Research, 3000 Leuven, Belgium; (P.L.); (K.T.); (R.C.)
| | - M. Rosário O. Martins
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical/Universidade Nova de Lisboa (IHMT/UNL), 1349–028 Lisbon, Portugal; (V.P.); (M.M.); (A.P.-P.); (M.R.O.M.); (A.-M.V.); (A.A.)
| | - Anne-Mieke Vandamme
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical/Universidade Nova de Lisboa (IHMT/UNL), 1349–028 Lisbon, Portugal; (V.P.); (M.M.); (A.P.-P.); (M.R.O.M.); (A.-M.V.); (A.A.)
- Department of Microbiology and Immunology, KU Leuven, Clinical and Epidemiological Virology, Rega Institute for Medical Research, 3000 Leuven, Belgium; (P.L.); (K.T.); (R.C.)
| | - Ricardo Camacho
- Department of Microbiology and Immunology, KU Leuven, Clinical and Epidemiological Virology, Rega Institute for Medical Research, 3000 Leuven, Belgium; (P.L.); (K.T.); (R.C.)
| | - Perpétua Gomes
- Laboratório de Biologia Molecular (LMCBM, SPC, CHLO-HEM), 1349-019 Lisbon, Portugal; (I.D.); (S.F.); (P.G.)
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Superior de Ciências da Saúde Egas Moniz, 2829-511 Caparica, Portugal
| | - Ana Abecasis
- Global Health and Tropical Medicine (GHTM), Instituto de Higiene e Medicina Tropical/Universidade Nova de Lisboa (IHMT/UNL), 1349–028 Lisbon, Portugal; (V.P.); (M.M.); (A.P.-P.); (M.R.O.M.); (A.-M.V.); (A.A.)
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Mazzuti L, Melengu T, Falasca F, Calabretto M, Cella E, Ciccozzi M, Mezzaroma I, Iaiani G, Spaziante M, d'Ettorre G, Fimiani C, Vullo V, Antonelli G, Turriziani O. Transmitted drug resistance mutations and trends of HIV-1 subtypes in treatment-naïve patients: A single-centre experience. J Glob Antimicrob Resist 2019; 20:298-303. [PMID: 31518723 DOI: 10.1016/j.jgar.2019.08.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/12/2019] [Accepted: 08/28/2019] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Transmitted drug resistance (TDR) and HIV-1 genetic diversity may affect treatment efficacy and clinical outcomes. Here we describe the circulating viral subtypes and estimate the prevalence of drug resistance among antiretroviral therapy (ART)-naïve patients attending Sapienza University Hospital (Rome, Italy) from 2006-2017. METHODS Genotypic resistance testing (GRT) was performed on 668 ART-naïve patients for integrase (n = 52), protease and reverse transcriptase (n = 668) sequences. RESULTS Twenty-one different HIV-1 subtypes and circulating recombinant forms (CRFs) were identified. Subtype B was the most common (67.1%), followed by CRF02_AG (8.4%), and subtypes C and F (both 6.0%). A significantly increase in the proportion of non-B strains (P < 0.001) and the rate of non-Italian patients was observed over time. The overall prevalence of TDR was 9.4% (NRTI, 4.2%; NNRTI, 5.8%; and PI, 1.0%) and was higher in subtype B strains. Transmitted INSTI mutations (Q148H and G140S) responsible for high-level resistance to raltegravir and elvitegravir and intermediate resistance to dolutegravir and bictegravir were found, for the first time, in two individuals. Minor or accessory INSTI mutations were detected in 17.3% of patients. No significant decrease in the prevalence of TDR was documented over time. CONCLUSION The significant increase in non-B subtypes suggests that the molecular epidemiology of HIV-1 is changing. Detection of a major INSTI mutation in two ART-naïve patients highlights the importance of performing GRT before commencing treatment. This finding and the lack of a significant reduction in TDRs underline the importance of continuous surveillance of resistance mutations.
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Affiliation(s)
- Laura Mazzuti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Taulant Melengu
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Francesca Falasca
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Eleonora Cella
- Unit of Medical Statistics and Molecular Epidemiology, University Campus Bio-Medico of Rome, Rome, Italy
| | - Massimo Ciccozzi
- Unit of Medical Statistics and Molecular Epidemiology, University Campus Bio-Medico of Rome, Rome, Italy
| | - Ivano Mezzaroma
- Department of Translational and Precision Medicine, Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | | | - Martina Spaziante
- Department of Public Health and Infectious Diseases, 'Sapienza' University of Rome, Rome, Italy
| | - Gabriella d'Ettorre
- Department of Public Health and Infectious Diseases, 'Sapienza' University of Rome, Rome, Italy
| | | | - Vincenzo Vullo
- Department of Public Health and Infectious Diseases, 'Sapienza' University of Rome, Rome, Italy
| | - Guido Antonelli
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
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Lagi F, Baldin G, Colafigli M, Capetti A, Madeddu G, Kiros ST, Di Giambenedetto S, Sterrantino G. Viro-immunological efficacy and tolerability of dolutegravir-based regimens compared to regimens based on other integrase strand inhibitors, protease inhibitors or non-nucleoside reverse transcriptase inhibitors in patients with acute HIV-1 infection: A multicenter retrospective cohort study. Int J Antimicrob Agents 2019; 54:487-490. [PMID: 31195121 DOI: 10.1016/j.ijantimicag.2019.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 05/10/2019] [Accepted: 06/02/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES The aim of this study was to compare the tolerability and viro-immunological efficacy of dolutegravir-based regimens (DTG group) with regimens based on EVG, RAL, PI or NNRTI (NODTG group) in patients with acute HIV-1 infections (AHI). METHODS All patients diagnosed with AHI and on antiretroviral therapy (ART) between January 2015 and December 2017 from five centers in Italy were included and followed-up to 30th April 2018. AHI was defined by the presence of the positive p24 antigen with negative or indeterminate western blot. RESULTS Forty-three patients were enrolled: 20 in the DTG group, 23 in the NODTG group. Nine patients (20.9%; four in the DTG group, five in the NODTG group) were prescribed a four-drug regimen. In the cohort, 81.4% were Italian and 83.7% were male, with a median age of 41 years (interquartile range [IQR] 31-48). Median time between HIV diagnosis and ART initiation was 12 days (IQR 5-28). Seven patients harbored a virus with transmitted mutations at baseline (16.2%), all were in the DTG group (P=0.005). All patients had undetectable HIV-RNA at the end of follow-up except two patients, one of whom had 57 copies and one who was lost to follow-up. In Kaplan-Meier analysis, time to virological suppression was similar in the two groups (log rank: P= 0.7155). After achieving virological suppression, four patients stopped ART because of toxicity: two on DTG, two on EVG for neurological and gastrointestinal toxicity, respectively. CONCLUSION In our setting, ART in AHI is started very early. DTG showed good viro-immunological efficacy even in the presence of NRTI-transmitted mutations. DTG interruptions were rare.
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Affiliation(s)
- F Lagi
- Infectious Disease Unit, Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla 3, 50134, Firenze, (Italy)
| | - G Baldin
- Institute of Clinical Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of the Sacred Heart, L. go Agostino Gemelli, 8 - 00168, Rome (Italy)
| | - M Colafigli
- Infectious Dermatology and Allergology Unit, IFO S. Gallicano Institute (IRCCS), via Elio Chianesi, 53 - 00144, Rome, (Italy)
| | - A Capetti
- Division of Infectious Diseases, Department of Infectious Diseases, Luigi Sacco University Hospital, via Giovanni Battista Grassi, 74, 20157, Milan, (Italy)
| | - G Madeddu
- Unit of Infectious Diseases, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Viale San Pietro, 10- 07100 Sassari, (Italy)
| | - S Tekle Kiros
- Infectious Disease Unit, Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla 3, 50134, Firenze, (Italy)
| | - S Di Giambenedetto
- Institute of Clinical Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University of the Sacred Heart, L. go Agostino Gemelli, 8 - 00168, Rome (Italy)
| | - G Sterrantino
- Infectious Disease Unit, Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla 3, 50134, Firenze, (Italy).
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Franzetti M, De Luca A, Ceccherini-Silberstein F, Spagnuolo V, Nicastri E, Mussini C, Antinori A, Monno L, Vecchiet J, Fanti I, d'Arminio Monforte A, Balotta C. Evolution of HIV-1 transmitted drug resistance in Italy in the 2007-2014 period: A weighted analysis. J Clin Virol 2018; 106:49-52. [PMID: 30075459 DOI: 10.1016/j.jcv.2018.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 06/06/2018] [Accepted: 07/25/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Recent studies suggest that transmitted drug resistance (TDR) may be decreasing in latest years, likely because of the reduced frequency of acquired resistance. However, specific risk factors, geographical areas and special HIV-infected populations may be disproportionally affected by TDR. OBJECTIVES Correlates of TDR and time trends were evaluated from 2007 to 2014. STUDY DESIGN We evaluated the genotypic results of 2155 naïve patients enrolled in the I.Co.N.A cohort at 23 clinical Centers in Italy between 2007 and 2014. A weighted analysis was performed to account for the patients enrolled in the cohort in each clinical Centre at each biennium (total number of patients: 3737). RESULTS Overall prevalence of TDR was 10.7%. Independent predictors of TDR were sexual risk factor (OR 2.315, p = 0.020) and non-Italian geographical origin (OR 1.57, p = 0.038). The weighted prevalence of TDR was 10.5% with a stable proportion over calendar years. Generally, TDR prevalence was numerically higher, although not significantly, in clinical Centers of metropolitan areas with more than 3 millions of residents as compared to others (11.3% vs. 9.2%). The difference in TDR prevalence between these Centers decreased in more recent years. CONCLUSIONS A stable frequency of TDR was observed during the most recent years in Italy, with opposite and converging trends in large metropolitan areas as compared to the rest of the country, suggesting a more homogeneous spread of TDR across the country in latest years. Concerns remain for sexual route of infection and non-Italian origin, reinforcing the need for specific prevention strategies prioritizing specific populations.
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Affiliation(s)
- M Franzetti
- Department of Biomedical and Clinical Sciences 'L. Sacco', University of Milan, Milan, Italy.
| | - A De Luca
- Siena University Hospital, Infectious Diseases Unit, Siena, Italy
| | | | - V Spagnuolo
- San Raffaele Scientific Institute, Infectious Diseases, Milan, Italy
| | - E Nicastri
- National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - C Mussini
- Clinic of Infectious Disease, University Hospital, Modena, Italy
| | - A Antinori
- National Institute for Infectious Diseases "L. Spallanzani", Rome, Italy
| | - L Monno
- University of Bari, Department of Biomedical Science and Oncology, Bari, Italy
| | - J Vecchiet
- University of Chieti, Infectious Diseases Clinic, Italy
| | - I Fanti
- Catholic University of Sacred Heart, Clinical Infectious Diseases, Rome, Italy
| | - A d'Arminio Monforte
- San Paolo University Hospital Milan, Clinic of Infectious and Tropical Diseases, Milan, Italy
| | - C Balotta
- Department of Biomedical and Clinical Sciences 'L. Sacco', University of Milan, Milan, Italy
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McCluskey SM, Lee GQ, Kamelian K, Kembabazi A, Musinguzi N, Bwana MB, Muzoora C, Haberer JE, Hunt PW, Martin JN, Boum Y, Bangsberg DR, Harrigan PR, Siedner MJ. Increasing Prevalence of HIV Pretreatment Drug Resistance in Women But Not Men in Rural Uganda During 2005-2013. AIDS Patient Care STDS 2018; 32:257-264. [PMID: 29985647 DOI: 10.1089/apc.2018.0020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The prevalence of HIV pretreatment drug resistance (PDR) is increasing in sub-Saharan Africa. We sought to describe correlates of PDR and evaluate effects of PDR on clinical outcomes in rural Uganda. We analyzed data from the Uganda AIDS Rural Treatment Outcomes study, a cohort of antiretroviral therapy (ART)-naive adults with HIV (2005-2015). We performed resistance testing on pre-ART specimens. We defined PDR as any World Health Organization (WHO) 2009 surveillance drug resistance mutation and classified PDR level using the Stanford algorithm. We fit unadjusted and sex-stratified log binomial regression and Cox proportional hazard models to identify correlates of PDR and the impact of PDR on viral suppression, loss to follow-up (LTFU), and death. We analyzed data from 738 participants (median age 33 years, 69% female). Overall, prevalence of PDR was 3.5% (n = 26), owing mostly to resistance to non-nucleoside reverse transcriptase inhibitors. PDR increased over time in women (1.8% in those enrolling in clinic in 2001-2006, vs. 7.0% in 2007-2013; p = 0.006), but not in men (1.15% vs. 0.72%, p = 0.737). Lower pre-ART log10 HIV RNA was also associated with higher prevalence of PDR. We identified longer time to viral suppression among those with PDR compared with without PDR (0.5 and 0.3 years, respectively, p = 0.023), but there was no significant relationship with mortality or LTFU (p = 0.139). We observed increasing rates of PDR in women in southwestern Uganda. Implications of this trend, particularly to prevention of mother-to-child transmission programs in the region, require attention due to delayed viral suppression among those with PDR.
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Affiliation(s)
- Suzanne M. McCluskey
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Guinevere Q. Lee
- Harvard Medical School, Boston, Massachusetts
- The Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts
- BC Center for Excellence in HIV/AIDS, Vancouver, Canada
- Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Kimia Kamelian
- BC Center for Excellence in HIV/AIDS, Vancouver, Canada
- Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Annet Kembabazi
- Mbarara University of Science and Technology, Mbarara, Uganda
| | | | | | - Conrad Muzoora
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - Jessica E. Haberer
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Peter W. Hunt
- Department of Medicine, University of California San Francisco, San Francisco, California
| | - Jeffrey N. Martin
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California
| | - Yap Boum
- Epicenter Mbarara Research Center, Mbarara, Uganda
| | - David R. Bangsberg
- Oregon Health Sciences University–Portland State University School of Public Health, Portland, Oregon
| | | | - Mark J. Siedner
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Mbarara University of Science and Technology, Mbarara, Uganda
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7
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Rossetti B, Di Giambenedetto S, Torti C, Postorino MC, Punzi G, Saladini F, Gennari W, Borghi V, Monno L, Pignataro AR, Polilli E, Colafigli M, Poggi A, Tini S, Zazzi M, De Luca A. Evolution of transmitted HIV-1 drug resistance and viral subtypes circulation in Italy from 2006 to 2016. HIV Med 2018; 19:619-628. [PMID: 29932313 DOI: 10.1111/hiv.12640] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The aim was to evaluate the evolution of transmitted HIV-1 drug resistance (TDR) prevalence in antiretroviral therapy (ART)-naïve patients from 2006 to 2016. METHODS HIV-1 sequences were retrieved from the Antiviral Response Cohort Analysis (ARCA) database and TDR was defined as detection of at least one mutation from the World Health Organization (WHO) surveillance list. RESULTS We included protease/reverse transcriptase sequences from 3573 patients; 455 had also integrase sequences. Overall, 68.1% of the patients were Italian, the median CD4 count was 348 cells/μL [interquartile range (IQR) 169-521 cells/μL], and the median viral load was 4.7 log10 HIV-1 RNA copies/mL (IQR 4.1-5.3 log10 copies/mL). TDR was detected in 10.3% of patients: 6% carried mutations to nucleos(t)ide reverse transcriptase inhibitors (NRTIs), 4.4% to nonnucleos(t)ide reverse transcriptase inhibitors (NNRTIs), 2.3% to protease inhibitors (PIs), 0.2% to integrase strand transfer inhibitors (INSTIs) and 2.1% to at least two drug classes. TDR declined from 14.5% in 2006 to 7.3% in 2016 (P = 0.003): TDR to NRTIs from 9.9 to 2.9% (P = 0.003) and TDR to NNRTIs from 5.1 to 3.7% (P = 0.028); PI TDR remained stable. The proportion carrying subtype B virus declined from 76.5 to 50% (P < 0.001). The prevalence of TDR was higher in subtype B vs. non-B (12.6 vs. 4.9%, respectively; P < 0.001) and declined significantly in subtype B (from 17.1 to 8.8%; P = 0.04) but not in non-B subtypes (from 6.1 to 5.8%; P = 0.44). Adjusting for country of origin, predictors of TDR were subtype B [adjusted odds ratio (AOR) for subtype B vs. non-B 2.91; 95% confidence interval (CI) 1.93-4.39; P < 0.001], lower viral load (per log10 higher: AOR 0.86; 95% CI 0.75-0.99; P = 0.03), site in northern Italy (AOR for southern Italy/island vs. northern Italy, 0.61; 95% CI 0.40-0.91; P = 0.01), and earlier calendar year (per 1 year more recent: AOR 0.95; 95% CI 0.91-0.99; P = 0.02). CONCLUSIONS The prevalence of HIV-1 TDR has declined during the last 10 years in Italy.
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Affiliation(s)
- B Rossetti
- Infectious Diseases Unit, University Hospital of Siena, Siena, Italy
| | - S Di Giambenedetto
- Clinic of Infectious Diseases, Catholic University of Sacred Heart, Rome, Italy
| | - C Torti
- Infectious Diseases Unit, Catanzaro, Italy
| | | | - G Punzi
- Virology, Bari Hospital, Bari, Italy
| | - F Saladini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - W Gennari
- Virology, Modena Hospital, Modena, Italy
| | - V Borghi
- Infectious Diseases Unit, Modena Hospital, Modena, Italy
| | - L Monno
- Infectious Diseases Unit, Bari Hospital, Bari, Italy
| | | | - E Polilli
- Virology, Pescara Hospital, Pescara, Italy
| | - M Colafigli
- Clinic of Infectious Diseases, Catholic University of Sacred Heart, Rome, Italy
| | - A Poggi
- Infectious Diseases Unit, S. Maria Annunziata Hospital, Firenze, Italy
| | - S Tini
- Medicine Department, Città di Castello, Italy
| | - M Zazzi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - A De Luca
- Infectious Diseases Unit, University Hospital of Siena, Siena, Italy.,Department of Medical Biotechnologies, University of Siena, Siena, Italy
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Hauser A, Hofmann A, Hanke K, Bremer V, Bartmeyer B, Kuecherer C, Bannert N. National molecular surveillance of recently acquired HIV infections in Germany, 2013 to 2014. ACTA ACUST UNITED AC 2017; 22:30436. [PMID: 28105988 PMCID: PMC5404484 DOI: 10.2807/1560-7917.es.2017.22.2.30436] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 08/23/2016] [Indexed: 11/20/2022]
Abstract
To enable an up-to-date molecular analysis of human immunodeficiency virus (HIV) genotypes circulating in Germany we have established a surveillance system based on recently acquired HIV infections. New HIV infections are reported to the Robert Koch Institute as a statutory duty for anonymous notification. In 2013 and 2014, a dried serum spot (DSS) sample was received from 6,371 newly diagnosed HIV-cases; their analysis suggested that 1,797 samples originated from a recent infection. Of these, 809 were successfully genotyped in the pol region to identify transmitted drug resistance (TDR) mutations and to determine the HIV-1 subtype. Total TDR was 10.8%, comprising 4.3% with mono-resistance to nucleoside reverse transcriptase inhibitors (NRTIs), 2.6% to non-NRTIs, 3.0% to protease inhibitors and 0.6% and 0.2%, respectively, with dual- and triple-class resistances. HIV-1 subtype B was most prevalent with 77.0%. Non-B infections were identified more often in men and women with heterosexual transmission compared with intravenous drug users or men who have sex with men (79% and 76%, 33%, 12%; all p < 0.05). Non-B subtypes were also more frequently found in patients originating from countries other than Germany (46% vs 14%; p < 0.05) and in patients infected outside of Germany (63% vs 14%; p < 0.05).
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Affiliation(s)
- Andrea Hauser
- Division of HIV and Other Retroviruses, Robert Koch Institute, Berlin, Germany
| | - Alexandra Hofmann
- Division of HIV/AIDS, STI and Blood-borne Infections, Robert Koch Institute, Berlin,
Germany.,Charité - Universitätsmedizin, Berlin, Germany
| | - Kirsten Hanke
- Division of HIV and Other Retroviruses, Robert Koch Institute, Berlin, Germany
| | - Viviane Bremer
- Division of HIV/AIDS, STI and Blood-borne Infections, Robert Koch Institute, Berlin,
Germany
| | - Barbara Bartmeyer
- Division of HIV/AIDS, STI and Blood-borne Infections, Robert Koch Institute, Berlin,
Germany
| | - Claudia Kuecherer
- Division of HIV and Other Retroviruses, Robert Koch Institute, Berlin, Germany
| | - Norbert Bannert
- Division of HIV and Other Retroviruses, Robert Koch Institute, Berlin, Germany
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Nozza S, Poli A, Ripa M, Galli L, Chiappetta S, Spagnuolo V, Rovelli C, Lazzarin A, Castagna A, Tambussi G. Efficacy of elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate as treatment for primary or recent HIV infection. J Antimicrob Chemother 2016; 72:632-633. [PMID: 27798217 DOI: 10.1093/jac/dkw439] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Silvia Nozza
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy
| | - Andrea Poli
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy
| | - Marco Ripa
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Laura Galli
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Stefania Chiappetta
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Vincenzo Spagnuolo
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy
| | | | - Adriano Lazzarin
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Antonella Castagna
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy.,Università Vita-Salute San Raffaele, Milan, Italy
| | - Giuseppe Tambussi
- Infectious Diseases Department, San Raffaele Scientific Institute, Milan, Italy
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Frange P, Assoumou L, Descamps D, Chéret A, Goujard C, Tran L, Gousset M, Avettand-Fenoël V, Bocket L, Fafi-Kremer S, Guinard J, Morand-Joubert L, Nicot F, Plantier JC, Rogez S, Wirden M, Rouzioux C, Meyer L, Chaix ML. HIV-1 subtype B-infected MSM may have driven the spread of transmitted resistant strains in France in 2007-12: impact on susceptibility to first-line strategies. J Antimicrob Chemother 2015; 70:2084-9. [PMID: 25885327 DOI: 10.1093/jac/dkv049] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 02/06/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Our study describes the prevalence of transmitted drug resistance (TDR) among 1318 French patients diagnosed at the time of primary HIV-1 infection (PHI) in 2007-12. METHODS HIV-1 resistance-associated mutations (RAMs) were characterized using both the 2009 WHO list of mutations and the French ANRS algorithm. A genotypic susceptibility score was estimated for each first-line recommended ART combination. RESULTS Patients were mainly MSM (72.6%). Non-B variants were identified in 33.7% of patients. The proportion of TDR was estimated as 11.7% (95% CI 10.0-13.5). The prevalences of PI-, NRTI-, first-generation NNRTI and etravirine/rilpivirine-associated RAMs were 2.5%, 5.2%, 3.9% and 3.2%, respectively. Single, dual and triple class resistance was found in 9.6%, 1.0% and 1.1% of cases, respectively. Additionally, 5/331 strains isolated in 2010-12 had integrase inhibitor (II)-related RAMs (isolated E157Q mutation in all cases). TDR was more common among MSM than in other groups (12.9% versus 8.6%, P = 0.034), and in case of B versus non-B subtype infections (13.6% versus 7.9%, P = 0.002). The proportions of fully active combinations were ≥99.2%, ≥97.3% and ≥95.3% in cases of PI-, II- and NNRTI-based regimens, respectively. In 2010-12, the proportion of fully active efavirenz-based ART was lower in cases of subtype B versus non-B infection (P = 0.021). CONCLUSIONS Compared with our previous studies, the proportion of NRTI- and first-generation NNRTI-related TDR has continued to decline in French seroconverters. However, subtype B-infected MSM could drive the spread of resistant HIV strains. Finally, we suggest preferring PI- or II- to NNRTI-based combinations to treat PHI patients.
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Affiliation(s)
- Pierre Frange
- Laboratoire de Microbiologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Necker-Enfants Malades, Paris, France EA7327, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Lambert Assoumou
- Sorbonne Universités, UPMC Université Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
| | - Diane Descamps
- Laboratoire de Virologie, AP-HP, Hôpital Bichat-Claude Bernard, Paris, France INSERM UMR1137 IAME, Université Paris Diderot, F-75018 Paris, France
| | - Antoine Chéret
- EA7327, Université Paris Descartes, Sorbonne Paris Cité, Paris, France Service de médecine interne, AP-HP, Hôpital Bicêtre, Le Kremlin Bicêtre, France
| | - Cécile Goujard
- Service de médecine interne, AP-HP, Hôpital Bicêtre, Le Kremlin Bicêtre, France INSERM CESP, U1018, Université Paris Sud, Faculté de Médecine Paris Sud, Le Kremlin Bicêtre, France
| | - Laurent Tran
- INSERM CESP, U1018, Université Paris Sud, Faculté de Médecine Paris Sud, Le Kremlin Bicêtre, France Département d'Epidémiologie, AP-HP, Hôpital Bicêtre, Le Kremlin Bicêtre, France
| | - Marine Gousset
- Laboratoire de Microbiologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Necker-Enfants Malades, Paris, France
| | - Veronique Avettand-Fenoël
- Laboratoire de Microbiologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Necker-Enfants Malades, Paris, France EA7327, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Laurence Bocket
- Laboratoire de Virologie, Centre hospitalo-universitaire de Lille, Lille, France
| | - Samira Fafi-Kremer
- Laboratoire de Virologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France INSERM, U1109, LabEx TRANSPLANTEX Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France
| | - Jerome Guinard
- Laboratoire de Microbiologie, Centre hospitalier régional d'Orléans, Orléans, France
| | - Laurence Morand-Joubert
- Laboratoire de Virologie, AP-HP, Hôpital Saint Antoine, Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
| | - Florence Nicot
- Laboratoire de Virologie, Institut fédératif de biologie de Purpan, CHU de Toulouse, Hôpital Purpan, F-31300 Toulouse, France
| | - Jean-Christophe Plantier
- Laboratoire de Virologie et COREVIH Haute Normandie, Centre hospitalo-universitaire Charles Nicolle, Rouen, France
| | - Sylvie Rogez
- Laboratoire de Virologie, Centre hospitalo-universitaire de Limoges, Limoges, France
| | - Marc Wirden
- Laboratoire de Virologie, AP-HP, Groupe hospitalier Pitié-Salpêtrière, Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
| | - Christine Rouzioux
- Laboratoire de Microbiologie, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Necker-Enfants Malades, Paris, France EA7327, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Laurence Meyer
- INSERM CESP, U1018, Université Paris Sud, Faculté de Médecine Paris Sud, Le Kremlin Bicêtre, France Département d'Epidémiologie, AP-HP, Hôpital Bicêtre, Le Kremlin Bicêtre, France
| | - Marie-Laure Chaix
- Laboratoire de Virologie, AP-HP, Hôpital Saint Louis, INSERM U941, Université Paris Diderot, Laboratoire associé au Centre national de Référence du VIH, Paris, France
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12
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Franzetti M, Violin M, Antinori A, De Luca A, Ceccherini-Silberstein F, Gianotti N, Torti C, Bonora S, Zazzi M, Balotta C. Trends and correlates of HIV-1 resistance among subjects failing an antiretroviral treatment over the 2003-2012 decade in Italy. BMC Infect Dis 2014; 14:398. [PMID: 25037229 PMCID: PMC4223427 DOI: 10.1186/1471-2334-14-398] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 07/11/2014] [Indexed: 11/10/2022] Open
Abstract
Background Despite a substantial reduction in virological failures following introduction of new potent antiretroviral therapies in the latest years, drug resistance remains a limitation for the control of HIV-1 infection. We evaluated trends and correlates of resistance in treatment failing patients in a comprehensive database over a time period of relevant changes in prescription attitudes and treatment guidelines. Methods We analyzed 6,796 HIV-1 pol sequences from 49 centres stored in the Italian ARCA database during the 2003–2012 period. Patients (n = 5,246) with viremia > 200 copies/mL received a genotypic test while on treatment. Mutations were identified from IAS-USA 2013 tables. Class resistance was evaluated according to antiretroviral regimens in use at failure. Time trends and correlates of resistance were analyzed by Cochran-Armitage test and logistic regression models. Results The use of NRTI backbone regimens slightly decreased from 99.7% in 2003–2004 to 97.4% in 2010–2012. NNRTI-based combinations dropped from 46.7% to 24.1%. PI-containing regimens rose from 56.6% to 81.7%, with an increase of boosted PI from 36.5% to 68.9% overtime. In the same reference periods, Resistance to NRTIs, NNRTIs and PIs declined from 79.1% to 40.8%, from 77.8% to 53.8% and from 59.8% to 18.9%, respectively (p < .0001 for all comparisons). Dual NRTI + NNRTI and NRTI + PI resistance decreased from 56.4% to 33.3% and from 36.1% to 10.5%, respectively. Reduced risk of resistance over time periods was confirmed by a multivariate analysis. Conclusions Mutations associated with NRTIs, NNRTIs and PIs at treatment failure declined overtime regardless of specific class combinations and epidemiological characteristics of treated population. This is likely due to the improvement of HIV treatment, including both last generation drug combinations and prescription guidelines.
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Affiliation(s)
- Marco Franzetti
- Department of Biomedical and Clinical Sciences 'L, Sacco', Infectious Diseases and Immunopathology Section, University of Milan, Milan, Italy.
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Transmitted drug resistance and antiretroviral treatment outcomes in non-subtype B HIV-1-infected patients in South East Asia. J Acquir Immune Defic Syndr 2014; 66:74-9. [PMID: 24413039 DOI: 10.1097/qai.0000000000000108] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND We compared treatment outcomes of transmitted drug resistance (TDR) in patients on fully or partially sensitive drug regimens. METHODS Factors associated with survival and failure were analyzed using Cox proportional hazards and discrete time conditional logistic models. RESULTS TDR, found in 60 (4.1%) of 1471 Asian treatment-naive patients, was one of the significant predictors of failure. Patients with TDR to >1 drug in their regimen were >3 times as likely to fail compared to no TDR. CONCLUSIONS TDR was associated with failure in the context of non-fully sensitive regimens. Efforts are needed to incorporate resistance testing into national treatment programs.
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14
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First line treatment response in patients with transmitted HIV drug resistance and well defined time point of HIV infection: updated results from the German HIV-1 seroconverter study. PLoS One 2014; 9:e95956. [PMID: 24788613 PMCID: PMC4006817 DOI: 10.1371/journal.pone.0095956] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 04/02/2014] [Indexed: 12/19/2022] Open
Abstract
Background Transmission of drug-resistant HIV-1 (TDR) can impair the virologic response to antiretroviral combination therapy. Aim of the study was to assess the impact of TDR on treatment success of resistance test-guided first-line therapy in the German HIV-1 Seroconverter Cohort for patients infected with HIV between 1996 and 2010. An update of the prevalence of TDR and trend over time was performed. Methods Data of 1,667 HIV-infected individuals who seroconverted between 1996 and 2010 were analysed. The WHO drug resistance mutations list was used to identify resistance-associated HIV mutations in drug-naïve patients for epidemiological analysis. For treatment success analysis the Stanford algorithm was used to classify a subset of 323 drug-naïve genotyped patients who received a first-line cART into three resistance groups: patients without TDR, patients with TDR and fully active cART and patients with TDR and non-fully active cART. The frequency of virologic failure 5 to 12 months after treatment initiation was determined. Results Prevalence of TDR was stable at a high mean level of 11.9% (198/1,667) in the HIV-1 Seroconverter Cohort without significant trend over time. Nucleotide reverse transcriptase inhibitor resistance was predominant (6.0%) and decreased significantly over time (OR = 0.92, CI = 0.87–0.98, p = 0.01). Non-nucleoside reverse transcriptase inhibitor (2.4%; OR = 1.00, CI = 0.92–1.09, p = 0.96) and protease inhibitor resistance (2.0%; OR = 0.94, CI = 0.861.03, p = 0.17) remained stable. Virologic failure was observed in 6.5% of patients with TDR receiving fully active cART, 5,6% of patients with TDR receiving non-fully active cART and 3.2% of patients without TDR. The difference between the three groups was not significant (p = 0.41). Conclusion Overall prevalence of TDR remained stable at a rather high level. No significant differences in the frequency of virologic failure were identified during first-line cART between patients with TDR and fully-active cART, patients with TDR and non-fully active cART and patients without TDR.
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15
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Transmitted drug resistance to rilpivirine among antiretroviral-naïve patients living with HIV from northern Poland. J Int AIDS Soc 2014; 17:18929. [PMID: 24746180 PMCID: PMC3991831 DOI: 10.7448/ias.17.1.18929] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 02/03/2014] [Accepted: 02/26/2014] [Indexed: 11/27/2022] Open
Abstract
Introduction Rilpivirine (RPV) is a second-generation non-nucleoside reverse transcriptase inhibitor (NNRTI) that was recently approved for the treatment of antiretroviral-naïve individuals with HIV-1 viral load of <100,000 copies/ml. As transmission of the drug resistance mutations to this NNRTI may affect treatment outcomes, the frequency of primary, RPV-associated drug resistance mutations was assessed in this study. Methods For the study, 244 viral genome sequences from antiretroviral-naïve individuals were obtained by bulk sequencing. RPV-associated mutations were divided into RPV resistance mutations (K101E/P, E138A/G/K/Q/R, V179L, Y181C/I/V, Y188L, H221Y, F227C and M230I/L) according to the International AIDS Society-USA (IAS-USA) mutation list and variants potentially affecting RPV susceptibility (L100I, K101H/T, E138S, V179F/D/G/T, G190A/E/S, F227L and M230V) based on the in vitro and in vivo data. Results IAS-USA RPV drug resistance mutations were found in 5.3% sequences, with E138A and E138G being the most common (3.7 and 0.8%, respectively), followed by K101E (0.4%) and Y181C (0.4%), with no significant differences in the frequency between subtype B and non-B clades. Mutations potentially reducing RPV susceptibility were found in 2.5% of sequences, and they included V179D (1.6%) and G190A (0.8%), with equal distribution among non-B (n=2, 2.5%) and subtype B (n=4, 2.5%) clades. Clustering of RPV mutations was infrequent. Conclusions Prevalence of RPV-associated drug resistance mutations was low in the analysed sample and did not vary across the subtypes. The frequency of variants with potential influence on RPV susceptibility was similar among non-B variants if compared to B clades. Transmitted drug resistance to RPV is uncommon, which makes this a good option for the treatment of ARV-naïve patients; however, genotype resistance testing should remain compulsory before starting an RPV-based regimen.
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Imade GE, Sagay AS, Chaplin B, Chebu P, Musa J, Okpokwu J, Hamel DJ, Pam IC, Agbaji O, Samuels J, Meloni S, Sankale JL, Okonkwo P, Kanki P. Short communication: Transmitted HIV drug resistance in antiretroviral-naive pregnant women in north central Nigeria. AIDS Res Hum Retroviruses 2014; 30:127-33. [PMID: 24164431 DOI: 10.1089/aid.2013.0074] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The World Health Organization (WHO) recommends periodic surveillance of transmitted drug resistance (TDR) in communities in which antiretroviral therapy (ART) has been scaled-up for greater than 3 years. We conducted a survey of TDR mutations among newly detected HIV-infected antiretroviral (ARV)-naive pregnant women. From May 2010 to March 2012, 38 ARV-naive pregnant women were recruited in three hospitals in Jos, Plateau state, north central Nigeria. Eligible subjects were recruited using a modified version of the binomial sequential sampling technique recommended by WHO. HIV-1 genotyping was performed and HIV-1 drug resistance mutations were characterized according to the WHO 2009 surveillance drug resistance mutation (SDRM) list. HIV subtypes were determined by phylogenetic analysis. The women's median age was 25.5 years; the median CD4(+) cell count was 317 cells/μl and the median viral load of 16 was 261 copies/ml. Of the 38 samples tested, 34 (89%) were successfully genotyped. The SDRM rate was <5% for all ART drug classes, with 1/34 (2.9%) for NRTIs/NNRTIs and none for protease inhibitors 0/31 (0%). The specific SDRMs detected were M41L for nucleoside reverse transcriptase inhibitors (NRTIs) and G190A for nonnucleoside reverse transcriptase inhibitors (NNRTIs). HIV-1 subtypes detected were CRF02_AG (38.2%), G' (41.2%), G (14.7%), CRF06-CPX (2.9%), and a unique AG recombinant form (2.9%). The single ARV-native pregnant woman with SDRMs was infected with HIV-1 subtype G'. Access to ART has been available in the Jos area for over 8 years. The prevalence of TDR lower than 5% suggests proper ART administration, although continued surveillance is warranted.
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Affiliation(s)
- Godwin E. Imade
- Jos University Teaching Hospital (JUTH), APIN Centre, Jos, Nigeria
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, University of Jos, Jos, Nigeria
| | - Atiene S. Sagay
- Jos University Teaching Hospital (JUTH), APIN Centre, Jos, Nigeria
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, University of Jos, Jos, Nigeria
| | - Beth Chaplin
- Harvard School of Public Health, Boston, Massachusetts
| | - Philippe Chebu
- Jos University Teaching Hospital (JUTH), APIN Centre, Jos, Nigeria
| | - Jonah Musa
- Jos University Teaching Hospital (JUTH), APIN Centre, Jos, Nigeria
| | - Jonathan Okpokwu
- Jos University Teaching Hospital (JUTH), APIN Centre, Jos, Nigeria
| | | | - Ishaya C. Pam
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, University of Jos, Jos, Nigeria
| | - Oche Agbaji
- Jos University Teaching Hospital (JUTH), APIN Centre, Jos, Nigeria
| | - Jay Samuels
- AIDS Prevention Initiative in Nigeria Ltd, Abuja, Nigeria
| | - Seema Meloni
- Harvard School of Public Health, Boston, Massachusetts
| | | | | | - Phyllis Kanki
- Harvard School of Public Health, Boston, Massachusetts
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Yebra G, Delgado R, Pulido F, Rubio R, Galán JC, Moreno S, Holguín Á. Different trends of transmitted HIV-1 drug resistance in Madrid, Spain, among risk groups in the last decade. Arch Virol 2013; 159:1079-87. [PMID: 24297490 DOI: 10.1007/s00705-013-1933-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 11/20/2013] [Indexed: 11/30/2022]
Abstract
The presence of transmitted HIV drug resistance (TDR) threatens the efficacy of antiretroviral treatment. We aimed to assess the changes in TDR prevalence over the last decade in Madrid, Spain, to verify the role of the patients' risk groups in these changes. We analysed the trends of TDR between 2000 and 2011 in a cohort of 1,022 naïve HIV-infected patients in Madrid, Spain, whose pol sequences were available. They included, among others, 369 heterosexuals, 340 men who have sex with men (MSM), and 90 injection drug users (IDUs). TDR was reported following the WHO mutation list. The TDR rate in the whole cohort was 8.3 %, being the highest in MSM (9.1 %) and the lowest in IDUs (4.4 %). Over time, this rate decreased significantly (to 5.4 % in 2009-2011) since the period 2004-2006, when it peaked (10.7 %). Heterosexuals and IDUs showed similar trends, but in the 2009-2011 period, the TDR rate among MSM rebounded to 9.0 % (being absent among IDUs). TDR stabilized in the last years (2007-2011) for nucleoside reverse transcriptase inhibitors. The risk group also determined differences in the mutational profile, sex distribution, proportion of immigrants, and viral variants. In conclusion, the risk group caused different HIV sub-epidemics, determined by the patients' profiles. Despite the general decreasing trend in TDR, we observed a non-significant increase in TDR rate among MSM, a tendency that needs confirmation. Periodic TDR surveillance is important to prevent the widespread distribution of resistance, especially in MSM, given the growing HIV/AIDS epidemic in this high-risk population.
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Affiliation(s)
- Gonzalo Yebra
- HIV-1 Molecular Epidemiology Laboratory, Microbiology Department, Hospital Ramón y Cajal (IRYCIS) and CIBERESP, Ctra. Colmenar Viejo km. 9.100, 28034, Madrid, Spain
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18
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Parisi SG, Andreis S, Scaggiante R, Cruciani M, Ferretto R, Manfrin V, Panese S, Rossi MC, Francavilla E, Boldrin C, Dal Bello F, Basso M, Mengoli C, Andreoni M, Palù G. Decreasing trends of drug resistance and increase of non-B subtypes amongst subjects recently diagnosed as HIV-infected over the period 2004–2012 in the Veneto Region, Italy. J Glob Antimicrob Resist 2013; 1:201-206. [DOI: 10.1016/j.jgar.2013.05.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 03/26/2013] [Accepted: 05/15/2013] [Indexed: 11/26/2022] Open
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Bozicevic I, Handanagic S, Lepej SZ, Begovac J. The emerging and re-emerging human immunodeficiency virus epidemics in Europe. Clin Microbiol Infect 2013; 19:917-29. [PMID: 24205884 DOI: 10.1111/1469-0691.12313] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We provide a summary of the current status of the human immunodeficiency virus (HIV) epidemic, including data on the transmission of drug-resistant virus in the European Region of the WHO. The review was conducted by searching the reports of the European Centre for Disease Prevention and Control and the United Nations General Assembly Special Session country reports to identify the number of HIV cases reported in 2002-2011, the number of HIV tests performed, and the results of the most recent HIV surveys in at-risk groups. In the West, a 5-year linear trend analysis suggests an increase in the number of reported HIV cases in Belgium, Greece, and Iceland, and a decline in The Netherlands, Ireland, Portugal, Switzerland, and the UK. In the Centre, the number of reported cases increased in Bulgaria and Turkey, and in the East, the number of reported cases increased in Armenia, Georgia, and Ukraine. Estonia and Latvia reported a significant downward trend. HIV transmission in men who have sex with men (MSM) and heterosexual transmission accounted for, respectively, 40% and 38% of newly reported HIV cases in the West in 2011, whereas the epidemic in the Centre is predominantly concentrated in MSM. Although injection drug use remains the key driving force of the epidemic in the East, there is increasing evidence of sexual transmission from the core groups of injection drug users, and increasing spread within MSM. The pattern of transmitted drug resistance (TDR) is heterogeneous accross Europe; a significant number of clusters of TDR have been recently observed in several European countries.
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Affiliation(s)
- I Bozicevic
- WHO Collaborating Centre for HIV Surveillance, University of Zagreb School of Medicine, Zagreb, Croatia
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Aging with HIV: a practical review. Braz J Infect Dis 2013; 17:464-79. [PMID: 23711587 PMCID: PMC9428066 DOI: 10.1016/j.bjid.2012.11.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 11/19/2012] [Accepted: 11/21/2012] [Indexed: 11/20/2022] Open
Abstract
The worldwide elderly population is expected to grow by an additional 694 million people by 2025. By that time, there will be approximately two billion elderly people in the world, most of whom (80%) will be living in developing countries. Based on recent estimates, this population will number over 40 million in 2030 in Brazil and a consequent increase in governmental spending for this population can be expected. Since highly active antiretroviral therapy became available in the mid-1990s, the life expectancy of people living with HIV has increased significantly. Approximately 12 million life years were added to the world between 1996 and 2008 as a consequence of wider access to highly active antiretroviral therapy. In Brazil, the incidence of AIDS among the population aged ≥50 years doubled between 1996 and 2006. The development of antiretroviral therapy has allowed individuals diagnosed at a younger age to live longer, which partially explains the aging tendency associated with the HIV/AIDS epidemic. It is estimated that by 2015, subjects aged ≥50 years will represent 50% of the people living with HIV undergoing clinical treatment. This scenario presents some challenges, including the fact that the diagnosis of HIV tends to be delayed in older patients compared to younger patients because the symptoms of HIV can be confused with those of other common diseases among the elderly and also because healthcare professionals do not consider this population to be at high risk for HIV infection. In regard to the individuals diagnosed with HIV, a further challenge is presented by the morbidity normally associated with aging. Finally, the elderly also exhibit higher susceptibility to the toxic effects and pharmacological interactions of medications. The present article reviews the literature regarding the profile of HIV infection among individuals aged ≥50 years focusing on practical features related to the clinical approach and long-term follow-up of this population.
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Colafigli M, Di Giambenedetto S, Cauda R. Resistance to antiretroviral drugs. Microb Drug Resist 2013. [DOI: 10.2217/ebo.12.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Manuela Colafigli
- Manuela Colafigli graduated in medicine and surgery at the Catholic University of the Sacred Heart in Rome (Italy) in 2001. She received a postgraduate degree in tropical medicine in 2005 and a PhD in biology and clinics of tropical and infectious diseases in 2010. Her main research focuses are HIV drug resistance and metabolic complications of antiretroviral drugs
| | - Simona Di Giambenedetto
- Simona Di Giambenedetto is Confirmed Research Fellow at the Catholic University of the Sacred Heart in Rome (Italy). Her main research focuses are resistance and therapeutic drug monitoring of antiretroviral drugs and cART-related toxicity. She is author of 85 papers published on peer-reviewed scientific journals with an impact factor of 410 and a H-index of 17
| | - Roberto Cauda
- Roberto Cauda is Professor of Infectious Diseases and Chairman of the Department of Infectious Diseases of the Catholic University of the Sacred Heart in Rome (Italy). He is the author of more than 300 papers in the field of AIDS/HIV, infectious diseases, microbiology and immunology. He is an editor and serves on the editorial board of several international journals
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Skoura L, Metallidis S, Pilalas D, Kourelis A, Margariti A, Papadimitriou E, Antoniadou ZA, Chrysanthidis T, Tsachouridou O, Kollaras P, Nikolaidis P, Malisiovas N. High rates of transmitted drug resistance among newly-diagnosed antiretroviral naïve HIV patients in Northern Greece, data from 2009-2011. Clin Microbiol Infect 2013; 19:E169-72. [PMID: 23331664 DOI: 10.1111/1469-0691.12124] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 12/02/2012] [Accepted: 12/04/2012] [Indexed: 11/27/2022]
Abstract
We conducted a retrospective study on the prevalence and correlates of transmitted drug resistance among newly-diagnosed antiretroviral naive human immunodeficiency virus (HIV) patients in Northern Greece, during the period 2009-11. Transmitted drug resistance was documented in 21.8% of patients enrolled, affecting approximately 40% of subtype A HIV-1-infected individuals. Overcoming challenges due to the ongoing financial crisis, effective preventive measures should be implemented to control further dissemination of resistant HIV strains.
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Affiliation(s)
- L Skoura
- National AIDS Reference Centre of Northern Greece, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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