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King JM, Giallonardo FD, Shaik A, McGregor S, Yeung JYK, Sivaruban T, Lee FJ, Cunningham P, Dwyer DE, Nigro SJ, Grulich AE, Kelleher AD. Low HIV drug resistance prevalence among recently diagnosed HIV-positive men who have sex with men in a setting of high PrEP use. J Int AIDS Soc 2024; 27:e26308. [PMID: 39034597 PMCID: PMC11260875 DOI: 10.1002/jia2.26308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 05/29/2024] [Indexed: 07/23/2024] Open
Abstract
INTRODUCTION New South Wales (NSW) has one of the world's highest uptake rates of HIV pre-exposure prophylaxis (PrEP). This uptake has been credited with sharp declines in HIV transmission, particularly among Australian-born gay and bisexual men. Concerns have been raised around the potential for the emergence of tenofovir (TFV) and XTC (lamivudine/emtricitabine) resistance in settings of high PrEP use. Such an emergence could also increase treatment failure and associated clinical outcomes among people living with HIV (PLHIV). Despite low levels of nucleoside reverse-transcriptase inhibitor (NRTI) resistance relating to PrEP use in clinical settings, there are few published studies describing the prevalence of NRTI resistance among people newly diagnosed with HIV in a setting of high PrEP use. METHODS Using HIV antiretroviral drug resistance data linked to NSW HIV notifications records of people diagnosed from 1 January 2015 to 31 December 2021 and with HIV attributed to male-to-male sex, we described trends in TFV and XTC resistance. Resistance was identified using the Stanford HIV Drug Resistance genotypic resistance interpretation system. To focus on transmitted drug resistance, resistance prevalence estimates were generated using sequences taken less than 3 months post-HIV diagnosis. These estimates were stratified by timing of sequencing relative to the date of diagnosis, year of sequencing, birthplace, likely place of HIV acquisition, and stage of HIV at diagnosis. RESULTS Among 1119 diagnoses linked to HIV genomes sequenced less than 3 months following diagnosis, overall XTC resistance prevalence was 1.3%. Between 2015 and 2021, XTC resistance fluctuated between 0.5% to 2.9% and was 1.0% in 2021. No TFV resistance was found over the study period in any of the sequences analysed. Higher XTC resistance prevalence was observed among people with newly acquired HIV (evidence of HIV acquisition in the 12 months prior to diagnosis; 2.9%, p = 0.008). CONCLUSIONS In this Australian setting, TFV and XTC resistance prevalence in new HIV diagnoses remained low. Our findings offer further evidence for the safe scale-up of PrEP in high-income settings, without jeopardizing the treatment of those living with HIV.
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Affiliation(s)
- Jonathan M King
- The Kirby InstituteUniversity of New South WalesSydneyAustralia
| | | | - Ansari Shaik
- The Kirby InstituteUniversity of New South WalesSydneyAustralia
| | - Skye McGregor
- The Kirby InstituteUniversity of New South WalesSydneyAustralia
| | - Julie Yuek Kee Yeung
- New South Wales State Reference Laboratory ‐ HIV/AIDSSt Vincent's HospitalSydneyAustralia
| | | | - Frederick J Lee
- New South Wales Health Pathology‐RPA, Royal Prince Alfred HospitalCamperdownAustralia
- Department of Clinical Immunology and AllergyRoyal Prince Alfred HospitalCamperdownAustralia
| | - Philip Cunningham
- New South Wales State Reference Laboratory ‐ HIV/AIDSSt Vincent's HospitalSydneyAustralia
| | - Dominic E Dwyer
- New South Wales Health Pathology‐ICPMRWestmead HospitalWestmeadAustralia
| | - Steven J Nigro
- Health Protection NSWNSW Ministry of HealthSydneyAustralia
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Mortier V, Debaisieux L, Dessilly G, Stoffels K, Vaira D, Vancutsem E, Van Laethem K, Vanroye F, Verhofstede C. Prevalence and evolution of transmitted HIV drug resistance in Belgium between 2013 and 2019. Open Forum Infect Dis 2022; 9:ofac195. [PMID: 35794938 PMCID: PMC9251670 DOI: 10.1093/ofid/ofac195] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 04/08/2022] [Indexed: 11/27/2022] Open
Abstract
Background To assess the prevalence and evolution of transmitted drug resistance (TDR) in Belgium, a total of 3708 baseline human immunodeficiency virus (HIV)-1 polymerase sequences from patients diagnosed between 2013 and 2019 were analyzed. Methods Protease and reverse-transcriptase HIV-1 sequences were collected from the 7 national Aids Reference Laboratories. Subtype determination and drug resistance scoring were performed using the Stanford HIV Drug Resistance Database. Trends over time were assessed using linear regression, and the maximum likelihood approach was used for phylogenetic analysis. Results A total of 17.9% of the patients showed evidence of TDR resulting in at least low-level resistance to 1 drug (Stanford score ≥15). If only the high-level mutations (Stanford score ≥60) were considered, TDR prevalence dropped to 6.3%. The majority of observed resistance mutations impacted the sensitivity for nonnucleoside reverse-transcriptase inhibitors (NNRTIs) (11.4%), followed by nucleoside reverse-transcriptase inhibitors (6.2%) and protease inhibitors (2.4%). Multiclass resistance was observed in 2.4%. Clustered onward transmission was evidenced for 257 of 635 patients (40.5%), spread over 25 phylogenetic clusters. Conclusions The TDR prevalence remained stable between 2013 and 2019 and is comparable to the prevalence in other Western European countries. The high frequency of NNRTI mutations requires special attention and follow-up. Phylogenetic analysis provided evidence for local clustered onward transmission of some frequently detected mutations.
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Affiliation(s)
- Virginie Mortier
- Aids Reference Laboratory, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
| | - Laurent Debaisieux
- Aids Reference Laboratory, Université Libre de Bruxelles, CUB Hôpital Erasme, 1070 Brussels, Belgium
| | - Géraldine Dessilly
- Aids Reference Laboratory, Medical Microbiology Unit, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Karolien Stoffels
- Aids Reference Laboratory, Centre Hospitalier Universitaire St. Pierre, 1000 Brussels, Belgium
| | - Dolores Vaira
- Aids Reference Laboratory, Centre Hospitalier Universitaire de Liège, 4000 Liège, Belgium
| | - Ellen Vancutsem
- Aids Reference Laboratory, Vrije Universiteit Brussel VUB, 1090 Brussels, Belgium
| | - Kristel Van Laethem
- Department of Microbiology and Immunology, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium Aids Reference Laboratory, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Fien Vanroye
- Aids Reference Laboratory, Clinical Reference Laboratory, Department of Clinical Sciences, Institute of Tropical Medicine, 2000 Antwerp, Belgium
| | - Chris Verhofstede
- Aids Reference Laboratory, Department of Diagnostic Sciences, Ghent University, 9000 Ghent, Belgium
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Novitsky V, Steingrimsson J, Gillani FS, Howison M, Aung S, Solomon M, Won CY, Brotherton A, Shah R, Dunn C, Fulton J, Bertrand T, Civitarese A, Howe K, Marak T, Chan P, Bandy U, Alexander-Scott N, Hogan J, Kantor R. Statewide Longitudinal Trends in Transmitted HIV-1 Drug Resistance in Rhode Island, USA. Open Forum Infect Dis 2022; 9:ofab587. [PMID: 34988256 PMCID: PMC8709897 DOI: 10.1093/ofid/ofab587] [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: 09/07/2021] [Accepted: 12/06/2021] [Indexed: 11/14/2022] Open
Abstract
Background HIV-1 transmitted drug resistance (TDR) remains a global challenge that can impact care, yet its comprehensive assessment is limited and heterogenous. We longitudinally characterized statewide TDR in Rhode Island. Methods Demographic and clinical data from treatment-naïve individuals were linked to protease, reverse transcriptase, and integrase sequences routinely obtained over 2004-2020. TDR extent, trends, impact on first-line regimens, and association with transmission networks were assessed using the Stanford Database, Mann-Kendall statistic, and phylogenetic tools. Results In 1123 individuals, TDR to any antiretroviral increased from 8% (2004) to 26% (2020), driven by non-nucleotide reverse transcriptase inhibitor (NNRTI; 5%-18%) and, to a lesser extent, nucleotide reverse transcriptase inhibitor (NRTI; 2%-8%) TDR. Dual- and triple-class TDR rates were low, and major integrase strand transfer inhibitor resistance was absent. Predicted intermediate to high resistance was in 77% of those with TDR, with differential suppression patterns. Among all individuals, 34% were in molecular clusters, some only with members with TDR who shared mutations. Among clustered individuals, people with TDR were more likely in small clusters. Conclusions In a unique (statewide) assessment over 2004-2020, TDR increased; this was primarily, but not solely, driven by NNRTIs, impacting antiretroviral regimens. Limited TDR to multiclass regimens and pre-exposure prophylaxis are encouraging; however, surveillance and its integration with molecular epidemiology should continue in order to potentially improve care and prevention interventions.
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Affiliation(s)
| | | | | | - Mark Howison
- Research Improving People's Life, Providence, Rhode Island, USA
| | - Su Aung
- Brown University, Providence, Rhode Island, USA
| | | | - Cindy Y Won
- Brown University, Providence, Rhode Island, USA
| | | | - Rajeev Shah
- Brown University, Providence, Rhode Island, USA
| | - Casey Dunn
- Yale University, New Haven, Connecticut, USA
| | - John Fulton
- Brown University, Providence, Rhode Island, USA
| | - Thomas Bertrand
- Rhode Island Department of Health, Providence, Rhode Island, USA
| | - Anna Civitarese
- Rhode Island Department of Health, Providence, Rhode Island, USA
| | - Katharine Howe
- Rhode Island Department of Health, Providence, Rhode Island, USA
| | - Theodore Marak
- Rhode Island Department of Health, Providence, Rhode Island, USA
| | - Philip Chan
- Brown University, Providence, Rhode Island, USA.,Rhode Island Department of Health, Providence, Rhode Island, USA
| | - Utpala Bandy
- Rhode Island Department of Health, Providence, Rhode Island, USA
| | | | | | - Rami Kantor
- Brown University, Providence, Rhode Island, USA
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Lau CY, Adan MA, Maldarelli F. Why the HIV Reservoir Never Runs Dry: Clonal Expansion and the Characteristics of HIV-Infected Cells Challenge Strategies to Cure and Control HIV Infection. Viruses 2021; 13:2512. [PMID: 34960781 PMCID: PMC8708047 DOI: 10.3390/v13122512] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/22/2021] [Accepted: 11/27/2021] [Indexed: 12/13/2022] Open
Abstract
Antiretroviral therapy (ART) effectively reduces cycles of viral replication but does not target proviral populations in cells that persist for prolonged periods and that can undergo clonal expansion. Consequently, chronic human immunodeficiency virus (HIV) infection is sustained during ART by a reservoir of long-lived latently infected cells and their progeny. This proviral landscape undergoes change over time on ART. One of the forces driving change in the landscape is the clonal expansion of infected CD4 T cells, which presents a key obstacle to HIV eradication. Potential mechanisms of clonal expansion include general immune activation, antigenic stimulation, homeostatic proliferation, and provirus-driven clonal expansion, each of which likely contributes in varying, and largely unmeasured, amounts to maintaining the reservoir. The role of clinical events, such as infections or neoplasms, in driving these mechanisms remains uncertain, but characterizing these forces may shed light on approaches to effectively eradicate HIV. A limited number of individuals have been cured of HIV infection in the setting of bone marrow transplant; information from these and other studies may identify the means to eradicate or control the virus without ART. In this review, we describe the mechanisms of HIV-1 persistence and clonal expansion, along with the attempts to modify these factors as part of reservoir reduction and cure strategies.
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Affiliation(s)
- Chuen-Yen Lau
- HIV Dynamics and Replication Program, NCI, NIH, Bethesda, MD 20892, USA; (C.-Y.L.); (M.A.A.)
| | - Matthew A. Adan
- HIV Dynamics and Replication Program, NCI, NIH, Bethesda, MD 20892, USA; (C.-Y.L.); (M.A.A.)
- Vagelos College of Physicians & Surgeons, Columbia University, New York, NY 10032, USA
| | - Frank Maldarelli
- HIV Dynamics and Replication Program, NCI, NIH, Bethesda, MD 20892, USA; (C.-Y.L.); (M.A.A.)
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Kageyama S, Amolong Hinay A, Telan EFO, Samonte GMJ, Leano PSA, Tsuneki-Tokunaga A, Kanai K. Intrinsic Replication Competences of HIV Strains After Zidovudine/Lamivudine/Nevirapine Treatment in the Philippines. J Int Assoc Provid AIDS Care 2020; 18:2325958219856579. [PMID: 31216920 PMCID: PMC6748504 DOI: 10.1177/2325958219856579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Although drug-resistant HIV variants are considered to be less fit than drug-susceptible viruses, replication competence of these variants harbored by patients has not yet been elucidated in detail. We herein assessed the replication competence of strains obtained from individuals receiving antiretroviral therapy. Among 11 306 participants in a drug resistance surveillance in the Philippines, 2629 plasma samples were obtained from individuals after a 12-month treatment with zidovudine (ZDV)/lamivudine (3TC)/nevirapine (NVP). The replication competence of HIV isolates was then assessed by reinoculation into seronegative peripheral blood mononuclear cells in the absence of drugs in vitro. The drug resistance rate was estimated to be 9.2%. Drug-resistant strains were still a minority of closely related strains in a phylogenetic cluster. Among the available 295 samples, 37 HIV strains were successfully isolated. Progeny viruses were produced at a wide range (5.1 × 106 to 3.4 × 109 copies/mL) in primary culture of peripheral blood mononuclear cells. The viral yields were higher than the corresponding plasma viral load (1300 to 3.4 × 106 copies/mL) but correlated with those (r = 0.4). These results suggest that strains with higher intrinsic replication competence are one of the primary targets of newly selected drugs at the increasing phase of the plasma viral load during antiretroviral therapy.
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Affiliation(s)
- Seiji Kageyama
- 1 Division of Virology, Department of Microbiology and Immunology, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Alfredo Amolong Hinay
- 1 Division of Virology, Department of Microbiology and Immunology, Faculty of Medicine, Tottori University, Yonago, Japan
| | | | | | - Prisca Susan Agustin Leano
- 2 National Reference Laboratory, STD AIDS Cooperative Central Laboratory, San Lazaro Hospital, Manila, Philippines
| | - Akeno Tsuneki-Tokunaga
- 1 Division of Virology, Department of Microbiology and Immunology, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Kyosuke Kanai
- 1 Division of Virology, Department of Microbiology and Immunology, Faculty of Medicine, Tottori University, Yonago, Japan
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Rhee SY, Clutter D, Fessel WJ, Klein D, Slome S, Pinsky BA, Marcus JL, Hurley L, Silverberg MJ, Kosakovsky Pond SL, Shafer RW. Trends in the Molecular Epidemiology and Genetic Mechanisms of Transmitted Human Immunodeficiency Virus Type 1 Drug Resistance in a Large US Clinic Population. Clin Infect Dis 2020; 68:213-221. [PMID: 29846534 PMCID: PMC6321854 DOI: 10.1093/cid/ciy453] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/25/2018] [Indexed: 12/20/2022] Open
Abstract
Background There are few large studies of transmitted drug resistance (TDR) prevalence and the drug resistance mutations (DRMs) responsible for TDR in the United States. Methods Human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT) and protease sequences were obtained from 4253 antiretroviral therapy (ART)–naive individuals in a California clinic population from 2003 to 2016. Phylogenetic analyses were performed to study linkages between TDR strains and selection pressure on TDR-associated DRMs. Results From 2003 to 2016, there was a significant increase in overall (odds ratio [OR], 1.05 per year [95% confidence interval {CI}, 1.03–1.08]; P < .001) and nonnucleoside RT inhibitor (NNRTI)–associated TDR (OR, 1.11 per year [95% CI, 1.08–1.15]; P < .001). Between 2012 and 2016, TDR rates to any drug class ranged from 15.7% to 19.2%, and class-specific rates ranged from 10.0% to 12.8% for NNRTIs, 4.1% to 8.1% for nucleoside RT inhibitors (NRTIs), and 3.6% to 5.2% for protease inhibitors. The thymidine analogue mutations, M184V/I and the tenofovir-associated DRMs K65R and K70E/Q/G/N/T accounted for 82.9%, 7.3%, and 1.4% of NRTI-associated TDR, respectively. Thirty-seven percent of TDR strains clustered with other TDR strains sharing the same DRMs. Conclusions Although TDR has increased significantly in this large cohort, many TDR strains are unlikely to influence the activity of currently preferred first-line ART regimens. The high proportion of DRMs associated with infrequently used regimens combined with the clustering of TDR strains suggest that some TDR strains are being transmitted between ART-naive individuals.
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Affiliation(s)
- Soo-Yon Rhee
- Division of Infectious Diseases, Department of Medicine, Stanford University
| | - Dana Clutter
- Division of Infectious Diseases, Department of Medicine, Stanford University
| | - W Jeffrey Fessel
- Department of Internal Medicine, Kaiser Permanente Northern California, San Francisco
| | - Daniel Klein
- Department of Infectious Diseases, Kaiser Permanente Northern California, San Leandro
| | - Sally Slome
- Department of Infectious Diseases, Kaiser Permanente Northern California, Oakland
| | | | - Julia L Marcus
- Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts
| | - Leo Hurley
- Division of Research, Kaiser Permanente Northern California, Oakland
| | | | | | - Robert W Shafer
- Division of Infectious Diseases, Department of Medicine, Stanford University
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Bandera A, Gori A, Clerici M, Sironi M. Phylogenies in ART: HIV reservoirs, HIV latency and drug resistance. Curr Opin Pharmacol 2019; 48:24-32. [PMID: 31029861 DOI: 10.1016/j.coph.2019.03.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/07/2019] [Accepted: 03/12/2019] [Indexed: 11/17/2022]
Abstract
Combination antiretroviral therapy (ART) has significantly reduced the morbidity and mortality resulting from HIV infection. ART is, however, unable to eradicate HIV, which persists latently in several cell types and tissues. Phylogenetic analyses suggested that the proliferation of cells infected before ART initiation is mainly responsible for residual viremia, although controversy still exists. Conversely, it is widely accepted that drug resistance mutations (DRMs) do not appear during ART in patients with suppressed viral loads. Studies based on sequence clustering have in fact indicated that, at least in developed countries, HIV-infected ART-naive patients are the major source of drug-resistant viruses. Analysis of longitudinally sampled sequences have also shown that DRMs have variable fitness costs, which are strongly influenced by the viral genetic background.
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Affiliation(s)
- Alessandra Bandera
- Infectious Diseases Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy; Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, 20090 Milan, Italy
| | - Andrea Gori
- Infectious Diseases Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20090 Milan, Italy; Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, 20090 Milan, Italy
| | - Mario Clerici
- Department of Pathophysiology and Transplantation, School of Medicine and Surgery, University of Milan, 20090 Milan, Italy; IRCCS Fondazione Don Carlo Gnocchi, 20148 Milan, Italy
| | - Manuela Sironi
- Bioinformatics, Scientific Institute, IRCCS E. MEDEA, 23842 Bosisio Parini, Lecco, Italy.
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Chimukangara B, Kharsany AB, Lessells RJ, Naidoo K, Rhee SY, Manasa J, Gräf T, Lewis L, Cawood C, Khanyile D, Diallo K, Ayalew KA, Shafer RW, Hunt G, Pillay D, Abdool SK, de Oliveira T. Moderate-to-High Levels of Pretreatment HIV Drug Resistance in KwaZulu-Natal Province, South Africa. AIDS Res Hum Retroviruses 2019; 35:129-138. [PMID: 30430843 DOI: 10.1089/aid.2018.0202] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
There is evidence of increasing levels of pretreatment HIV drug resistance (PDR) in Southern Africa. We used data from two large population-based HIV surveillance studies to estimate prevalence of PDR in KwaZulu-Natal, the province with the highest HIV prevalence in South Africa. Sanger sequencing was performed on samples obtained from a longitudinal HIV surveillance program (study A, 2013-2014) and the HIV Incidence Provincial Surveillance System (study B, 2014-2015). Sequences were included for adult HIV positive participants (age ≥15 years for study A, age 15-49 years for study B) with no documented prior exposure to antiretroviral therapy (ART). Overall and drug class-specific PDR was estimated using the World Health Organization 2009 surveillance drug resistance mutation (SDRM) list, and phylogenetic analysis was performed to establish evidence of drug resistance transmission linkage. A total of 1,845 sequences were analyzed (611 study A; 1,234 study B). An overall PDR prevalence of 9.2% [95% confidence interval (CI) 7.0-11.7] was observed for study A and 11.0% (95% CI 8.9-13.2) for study B. In study B, the prevalence of non-nucleoside reverse-transcriptase inhibitor (NNRTI) PDR exceeded 10% for sequences collected in 2014 (10.2%, 95% CI 7.5-12.9). The most prevalent SDRMs were K103NS (7.5%), M184VI (2.4%), and V106AM (1.4%). There was no evidence of large transmission chains of drug-resistant virus. High level NNRTI PDR (>10%) suggests a need to modify the standard first-line ART regimen and to focus attention on improving the quality of HIV prevention, treatment, and care.
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Affiliation(s)
- Benjamin Chimukangara
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
- Department of Virology, National Health Laboratory Service, University of KwaZulu-Natal, Durban, South Africa
| | - Ayesha B.M. Kharsany
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Richard J. Lessells
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Kogieleum Naidoo
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Soo-Yon Rhee
- Department of Medicine, Stanford University, Stanford, California
| | - Justen Manasa
- Department of Medicine, University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
| | - Tiago Gräf
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Lara Lewis
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Cherie Cawood
- Epicentre AIDS Risk Management (Pty) Limited, Paarl, Cape Town, South Africa
| | - David Khanyile
- Epicentre AIDS Risk Management (Pty) Limited, Paarl, Cape Town, South Africa
| | - Karidia Diallo
- Centers for Disease Control and Prevention (CDC), Pretoria, South Africa
| | - Kassahun A. Ayalew
- Centers for Disease Control and Prevention (CDC), Pretoria, South Africa
| | - Robert W. Shafer
- Department of Medicine, Stanford University, Stanford, California
| | - Gillian Hunt
- Centre for HIV and STIs, National Institute for Communicable Diseases (NICD), Johannesburg, South Africa
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Deenan Pillay
- Africa Health Research Institute, KwaZulu-Natal, South Africa
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - Salim Karim Abdool
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Tulio de Oliveira
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
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The effect of primary drug resistance on CD4+ cell decline and the viral load set-point in HIV-positive individuals before the start of antiretroviral therapy. AIDS 2019; 33:315-326. [PMID: 30325769 DOI: 10.1097/qad.0000000000002046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To evaluate the effect of primary resistance and selected polymorphic amino-acid substitutions in HIV reverse transcriptase and protease on the CD4 cell count and viral load set point before the start of antiretroviral treatment. DESIGN Prospective cohort study. METHODS A total of 6180 individuals with a resistance test prior to starting antiretroviral treatment accessing care in HIV clinics across Europe who had at least one viral load and one CD4+ test available were included in the analysis. The impact of amino-acid substitutions variants on viral load and CD4+ trends was investigated using linear mixed models. Clusters of mutations were studied using principal component analysis. RESULTS Overall, the detection of any primary resistance was not associated with either the speed of CD4+ cell decline or the viral load set point. However, transmitted nucleoside reverse transcriptase inhibitor and protease inhibitor resistance appeared to be weakly associated with lower viral load set points, as were the polymorphic G16E or Q92K protease mutations. There was some evidence suggesting that these effects varied according to HIV subtype, with the effects of transmitted nucleoside reverse transcriptase inhibitor and protease resistance being particularly marked among individuals with a subtype B virus. A cluster of five polymorphic protease substitutions at position 20, 13, 36, 69 and 89 was associated with less steep CD4+ cell declines and lower viral load set points. CONCLUSION Although we found little evidence for an association between primary resistance and CD4+ speed of decline and viral load set point, the potential role of polymorphic protease (alone or in clusters) and their interplay with HIV subtype needs to be further evaluated.
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De La Cruz J, Vardhanbhuti S, Sahoo MK, Rovner R, Bosch RJ, Manasa J, Katzenstein DA, Pinsky BA. Persistence of Human Immunodeficiency Virus-1 Drug Resistance Mutations in Proviral Deoxyribonucleic Acid After Virologic Failure of Efavirenz-Containing Antiretroviral Regimens. Open Forum Infect Dis 2019; 6:ofz034. [PMID: 30863788 PMCID: PMC6405934 DOI: 10.1093/ofid/ofz034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/09/2019] [Accepted: 01/15/2019] [Indexed: 01/23/2023] Open
Abstract
Background Efavirenz (EFV)-based regimens select broad drug resistance to nonnucleoside reverse-transcriptase inhibitors (NNRTIs), limiting the effectiveness of EFV and other NNRTIs. The duration, persistence, and decay of drug resistance mutations (DRMs) in the proviral reservoir is not well defined. Methods Participants with virologic failure of EFV-based regimens and drug-resistant viremia with the K103N mutation in plasma ribonucleic acid (RNA) were identified from AIDS Clinical Trials Group (ACTG) studies A364 and A5095. These individuals received a second-line, boosted protease inhibitor-based regimen with suppression of viremia for up to10 years during long-term follow-up (median = 3.6 years; interquartile range, 2.1-6.9 years). Proviral deoxyribonucleic acid (DNA) from cryopreserved peripheral blood mononuclear cells was sequenced to identify the persistence of DRM. Results Twenty-eight participants from ACTG 364 and ACTG 5095 were evaluated. Sanger sequencing of proviral DNA detected K103N as well as additional reverse-transcriptase inhibitor (RTI) mutations. Ultradeep sequencing confirmed persistence of K103N in 71% of participants with minimal decay over time. In an adjusted model including years since suppression, persistent proviral K103N was 2.6 times more likely (95% confidence interval, 1.0-6.4) per log10 higher human immunodeficiency virus RNA at EFV failure. Conclusions Persistence of RTI mutations in proviral DNA after virologic failure has implications for the effectiveness of future drug regimens and the recycling of RTI drugs.
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Affiliation(s)
- Justin De La Cruz
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine
| | | | - Malaya K Sahoo
- Department of Pathology, Stanford University School of Medicine, California
| | - Robert Rovner
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine
| | - Ronald J Bosch
- Harvard TH Chan School of Public Health, Boston, Massachusetts
| | - Justen Manasa
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine
| | - David A Katzenstein
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine
| | - Benjamin A Pinsky
- Department of Medicine, Division of Infectious Diseases and Geographic Medicine.,Department of Pathology, Stanford University School of Medicine, California
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11
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Comparison of an In Vitro Diagnostic Next-Generation Sequencing Assay with Sanger Sequencing for HIV-1 Genotypic Resistance Testing. J Clin Microbiol 2018; 56:JCM.00105-18. [PMID: 29618499 DOI: 10.1128/jcm.00105-18] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 03/20/2018] [Indexed: 11/20/2022] Open
Abstract
The ability of next-generation sequencing (NGS) technologies to detect low frequency HIV-1 drug resistance mutations (DRMs) not detected by dideoxynucleotide Sanger sequencing has potential advantages for improved patient outcomes. We compared the performance of an in vitro diagnostic (IVD) NGS assay, the Sentosa SQ HIV genotyping assay for HIV-1 genotypic resistance testing, with Sanger sequencing on 138 protease/reverse transcriptase (RT) and 39 integrase sequences. The NGS assay used a 5% threshold for reporting low-frequency variants. The level of complete plus partial nucleotide sequence concordance between Sanger sequencing and NGS was 99.9%. Among the 138 protease/RT sequences, a mean of 6.4 DRMs was identified by both Sanger and NGS, a mean of 0.5 DRM was detected by NGS alone, and a mean of 0.1 DRM was detected by Sanger sequencing alone. Among the 39 integrase sequences, a mean of 1.6 DRMs was detected by both Sanger sequencing and NGS and a mean of 0.15 DRM was detected by NGS alone. Compared with Sanger sequencing, NGS estimated higher levels of resistance to one or more antiretroviral drugs for 18.2% of protease/RT sequences and 5.1% of integrase sequences. There was little evidence for technical artifacts in the NGS sequences, but the G-to-A hypermutation was detected in three samples. In conclusion, the IVD NGS assay evaluated in this study was highly concordant with Sanger sequencing. At the 5% threshold for reporting minority variants, NGS appeared to attain a modestly increased sensitivity for detecting low-frequency DRMs without compromising sequence accuracy.
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12
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Weber IT, Harrison RW. Decoding HIV resistance: from genotype to therapy. Future Med Chem 2017; 9:1529-1538. [PMID: 28791894 PMCID: PMC5694023 DOI: 10.4155/fmc-2017-0048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/03/2017] [Indexed: 01/14/2023] Open
Abstract
Genetic variation in HIV poses a major challenge for prevention and treatment of the AIDS pandemic. Resistance occurs by mutations in the target proteins that lower affinity for the drug or alter the protein dynamics, thereby enabling viral replication in the presence of the drug. Due to the prevalence of drug-resistant strains, monitoring the genotype of the infecting virus is recommended. Computational approaches for predicting resistance from genotype data and guiding therapy are discussed. Many prediction methods rely on rules derived from known resistance-associated mutations, however, statistical or machine learning can improve the classification accuracy and assess unknown mutations. Adding classifiers such as information on the atomic structure of the protein can further enhance the predictions.
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Affiliation(s)
- Irene T Weber
- Department of Biology, Georgia State University, PO Box 4010, Atlanta, GA 30302-4010, USA
| | - Robert W Harrison
- Department of Computer Science, Georgia State University, Atlanta, GA 30303, USA
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13
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Margot NA, Wong P, Kulkarni R, White K, Porter D, Abram ME, Callebaut C, Miller MD. Commonly Transmitted HIV-1 Drug Resistance Mutations in Reverse-Transcriptase and Protease in Antiretroviral Treatment-Naive Patients and Response to Regimens Containing Tenofovir Disoproxil Fumarate or Tenofovir Alafenamide. J Infect Dis 2017; 215:920-927. [PMID: 28453836 DOI: 10.1093/infdis/jix015] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 01/05/2017] [Indexed: 11/12/2022] Open
Abstract
Background The presence of transmitted drug resistance mutations (TDRMs) in antiretroviral treatment (ART)-naive patients can adversely affect the outcome of ART. Methods Resistance testing was conducted in 6704 ART-naive subjects predominantly from the United States and Europe in 9 clinical studies conducted by Gilead Sciences from 2000 to 2013. Results The presence of TDRMs increased during this period (from 5.2% to 11.4%), primarily driven by an increase in nonnucleoside reverse-transcriptase (RT) inhibitor (NNRTI) resistance mutations (from 0.3% to 7.1%), particularly K103N/S (increase from 0.3% to 5.3%). Nucleoside/nucleotide RT inhibitor mutations were found in 3.1% of patients. Only 1 patient had K65R (0.01%) and 7 had M184V/I (0.1%), despite high use of tenofovir disoproxil fumarate (TDF), emtricitabine, and lamivudine and potential transmission of resistance to these drugs. At least 1 thymidine-analogue mutations was present in 2.7% of patients with 0.07% harboring T215Y/F and 2.7% harboring T215 revertant mutations (T215rev). Patients with the combination of M41L + L210W + T215rev showed full human immunodeficiency virus RNA suppression while receiving a TDF- or tenofovir alafenamide-containing regimen. Conclusions There was an overall increase of TDRMs among patients enrolling in clinical trials from 2000 through 2013, driven primarily by an increase in NNRTI resistance. However, the presence of common TDRMs, including thymidine-analogue mutations/T215rev, showed no impact on response to TDF- or tenofovir alafenamide-containing regimens.
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Affiliation(s)
| | - Pamela Wong
- Gilead Sciences, Foster City, California, USA
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14
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Hofstra LM, Sánchez Rivas E, Nijhuis M, Bank LEA, Wilkinson E, Kelly K, Mudrikova T, Schuurman R, de Oliveira T, de Kort J, Wensing AMJ. High Rates of Transmission of Drug-resistant HIV in Aruba Resulting in Reduced Susceptibility to the WHO Recommended First-line Regimen in Nearly Half of Newly Diagnosed HIV-infected Patients. Clin Infect Dis 2017; 64:1092-1097. [PMID: 28329390 PMCID: PMC5848377 DOI: 10.1093/cid/cix056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 01/24/2017] [Indexed: 11/22/2022] Open
Abstract
Background. In Western countries emergence of human immunodeficiency virus (HIV) drug resistance has tremendously decreased, and transmission of drug resistance has merely stabilized in recent years. However, in many endemic settings with limited resources rates of emerging and transmitted drug resistance are not regularly assessed. Methods. We performed a survey including all HIV-infected individuals who received resistance testing in 2010–2015 in Aruba, a highly endemic HIV area in the Caribbean. Transmitted HIV drug resistance was determined using World Health Organization (WHO) criteria. Transmission dynamics were investigated using phylogenetic analyses. In a subset, baseline samples were re-analyzed using next generation sequencing (NGS). Results. Baseline resistance testing was performed in 104 newly diagnosed untreated individuals (54% of all newly diagnosed individuals in 2010–2015): 86% were men, 39% were foreign-born, and 22% had AIDS at diagnosis. And 33% (95% CI: 24–42%) was infected with a drug-resistant HIV variant. The prevalence of resistance to non-nucleoside reverse transcriptase inhibitors (NNRTIs) reached 45% (95% CI: 27–64%) in 2015, all based on the prevalence of mutation K103N. NGS did not demonstrate additional minority K103N-variants compared to routine resistance testing. K103N-harboring strains were introduced into the therapy-unexposed population via at least 6 independent transmissions epidemiologically linked to the surrounding countries. Virological failure of the WHO-recommended first-line NNRTI-based regimen was higher in the presence of K103N. Conclusions. The prevalence of resistant HIV in Aruba has increased to alarming levels, compromising the WHO-recommended first-line regimen. As adequate surveillance as advocated by the WHO is limited, the Caribbean region could face an unidentified rise of NNRTI-resistant HIV.
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Affiliation(s)
- L Marije Hofstra
- Virology, Department of Medical Microbiology, University Medical Center Utrecht, The Netherlands.,Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Elena Sánchez Rivas
- Department of Internal Medicine, Dr Horacio E. Oduber Hospital, Oranjestad, Aruba
| | - Monique Nijhuis
- Virology, Department of Medical Microbiology, University Medical Center Utrecht, The Netherlands
| | - Leonie E A Bank
- Virology, Department of Medical Microbiology, University Medical Center Utrecht, The Netherlands.,Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, The Netherlands
| | - Eduan Wilkinson
- Africa Centre for Population Health, Myeki, South Africa.,School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, Republic of South Africa
| | - Karina Kelly
- Department of Internal Medicine, Dr Horacio E. Oduber Hospital, Oranjestad, Aruba
| | - Tania Mudrikova
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, The Netherlands
| | - Rob Schuurman
- Virology, Department of Medical Microbiology, University Medical Center Utrecht, The Netherlands
| | - Tulio de Oliveira
- Africa Centre for Population Health, Myeki, South Africa.,School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, Republic of South Africa
| | - Jaclyn de Kort
- Department of Internal Medicine, Dr Horacio E. Oduber Hospital, Oranjestad, Aruba
| | - Annemarie M J Wensing
- Virology, Department of Medical Microbiology, University Medical Center Utrecht, The Netherlands
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15
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Wertheim JO, Oster AM, Johnson JA, Switzer WM, Saduvala N, Hernandez AL, Hall HI, Heneine W. Transmission fitness of drug-resistant HIV revealed in a surveillance system transmission network. Virus Evol 2017; 3:vex008. [PMID: 28458918 DOI: 10.1093/ve/vex008] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Test-and-treat programs are central to the global control of HIV, but transmitted drug resistance threatens the effectiveness of these programs. HIV mutations conferring resistance to antiretroviral drugs reduce replicative fitness in vitro, but their effect on propagation in vivo is less understood. Here, we estimate transmission fitness of these mutations in antiretroviral-naïve populations in the U.S. National HIV Surveillance System by comparing their frequency of clustering in a genetic transmission network relative with wild-type viruses. The large dataset (66,221 persons), comprising 30,196 antiretroviral-naïve persons, permitted the evaluation of sixty-nine resistance mutations. Decreased transmission fitness was demonstrated for twenty-three mutations, including M184V. In contrast, many high prevalence mutations (e.g. K103N, Y181C, and L90M) had transmission fitness that was indistinguishable from or exceeded wild-type fitness, permitting the establishment of large, self-sustaining drug resistance reservoirs. We highlight implications of these findings on strategies to preserve global treatment effectiveness.
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Affiliation(s)
- Joel O Wertheim
- Department of Medicine, University of California, San Diego, CA, 92093, USA.,ICF International, Atlanta, GA, 30329, USA
| | - Alexandra M Oster
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 30333, USA
| | - Jeffrey A Johnson
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 30333, USA
| | - William M Switzer
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 30333, USA
| | | | - Angela L Hernandez
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 30333, USA
| | - H Irene Hall
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 30333, USA
| | - Walid Heneine
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, 30333, USA
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16
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Günthard HF, Saag MS, Benson CA, del Rio C, Eron JJ, Gallant JE, Hoy JF, Mugavero MJ, Sax PE, Thompson MA, Gandhi RT, Landovitz RJ, Smith DM, Jacobsen DM, Volberding PA. Antiretroviral Drugs for Treatment and Prevention of HIV Infection in Adults: 2016 Recommendations of the International Antiviral Society-USA Panel. JAMA 2016; 316:191-210. [PMID: 27404187 PMCID: PMC5012643 DOI: 10.1001/jama.2016.8900] [Citation(s) in RCA: 480] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
IMPORTANCE New data and therapeutic options warrant updated recommendations for the use of antiretroviral drugs (ARVs) to treat or to prevent HIV infection in adults. OBJECTIVE To provide updated recommendations for the use of antiretroviral therapy in adults (aged ≥18 years) with established HIV infection, including when to start treatment, initial regimens, and changing regimens, along with recommendations for using ARVs for preventing HIV among those at risk, including preexposure and postexposure prophylaxis. EVIDENCE REVIEW A panel of experts in HIV research and patient care convened by the International Antiviral Society-USA reviewed data published in peer-reviewed journals, presented by regulatory agencies, or presented as conference abstracts at peer-reviewed scientific conferences since the 2014 report, for new data or evidence that would change previous recommendations or their ratings. Comprehensive literature searches were conducted in the PubMed and EMBASE databases through April 2016. Recommendations were by consensus, and each recommendation was rated by strength and quality of the evidence. FINDINGS Newer data support the widely accepted recommendation that antiretroviral therapy should be started in all individuals with HIV infection with detectable viremia regardless of CD4 cell count. Recommended optimal initial regimens for most patients are 2 nucleoside reverse transcriptase inhibitors (NRTIs) plus an integrase strand transfer inhibitor (InSTI). Other effective regimens include nonnucleoside reverse transcriptase inhibitors or boosted protease inhibitors with 2 NRTIs. Recommendations for special populations and in the settings of opportunistic infections and concomitant conditions are provided. Reasons for switching therapy include convenience, tolerability, simplification, anticipation of potential new drug interactions, pregnancy or plans for pregnancy, elimination of food restrictions, virologic failure, or drug toxicities. Laboratory assessments are recommended before treatment, and monitoring during treatment is recommended to assess response, adverse effects, and adherence. Approaches are recommended to improve linkage to and retention in care are provided. Daily tenofovir disoproxil fumarate/emtricitabine is recommended for use as preexposure prophylaxis to prevent HIV infection in persons at high risk. When indicated, postexposure prophylaxis should be started as soon as possible after exposure. CONCLUSIONS AND RELEVANCE Antiretroviral agents remain the cornerstone of HIV treatment and prevention. All HIV-infected individuals with detectable plasma virus should receive treatment with recommended initial regimens consisting of an InSTI plus 2 NRTIs. Preexposure prophylaxis should be considered as part of an HIV prevention strategy for at-risk individuals. When used effectively, currently available ARVs can sustain HIV suppression and can prevent new HIV infection. With these treatment regimens, survival rates among HIV-infected adults who are retained in care can approach those of uninfected adults.
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Affiliation(s)
- Huldrych F Günthard
- University Hospital Zurich and Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | | | | | - Carlos del Rio
- Emory University Rollins School of Public Health and School of Medicine, Atlanta, Georgia
| | - Joseph J Eron
- University of North Carolina at Chapel Hill School of Medicine, Chapel Hill
| | | | - Jennifer F Hoy
- Alfred Hospital and Monash University, Melbourne, Australia
| | | | - Paul E Sax
- Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | | | - Rajesh T Gandhi
- Massachusetts General Hospital and Harvard Medical School, Boston
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