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Chivite I, Berrocal L, de Lazzari E, Navadeh S, Lluis-Ganella C, Inciarte A, de la Mora L, González-Cordón A, Martínez-Rebollar M, Laguno M, Torres B, Blanco JL, Martínez E, Mallolas J, Ambrosioni J. Effectiveness, safety and discontinuation rates of bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) in people with HIV using real-world data: a systematic review and meta-analysis. J Antimicrob Chemother 2024; 79:1775-1783. [PMID: 38758191 DOI: 10.1093/jac/dkae138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 04/23/2024] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND The use of bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) is based on the results of robust clinical trials. OBJECTIVES To assess the effectiveness and safety of BIC/FTC/TAF in treatment-naïve (TN) and treatment-experienced (TE) people with HIV using available real-world cohort studies. METHODS Systematic review and meta-analysis of publications and communications identified via Boolean search in Medline, PubMed and Embase, and conference abstracts reporting retrospective real-world use of BIC/FTC/TAF, published until 31 January 2024. The primary endpoint was the proportion of TN and TE people with HIV with viral load (VL) < 50 copies/mL at 48 weeks while on treatment. RESULTS Of the 38 identified publications and conference abstracts, for the present analysis we included 12 publications (comprising 792 TN and 6732 TE individuals). For the three publications including 507 TN participants reporting the primary outcome, VL suppression was 97% [95% confidence intervals (CI): 89-100]. For the nine publications including 4946 TE participants reporting the primary outcome, VL suppression was 95% (95% CI: 94-96), with suppression >93% in all studies. Total discontinuations at 48 weeks in TE individuals were 3% (95% CI: 2-5), 1% (95% CI: 0-2) due to side effects. A total of four publications with 151 TE individuals with previous presence of M184V substitution were identified, reporting a suppression rate at 48 weeks of 95% (95% CI: 88-100). CONCLUSIONS Real-world studies demonstrate low discontinuation rates and high rates of virologic suppression in individuals treated with BIC/FTC/TAF, both TN and TE with and without previous detection of M184V substitution.
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Affiliation(s)
- Iván Chivite
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Leire Berrocal
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Elisa de Lazzari
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | | | | | - Alexy Inciarte
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Lorena de la Mora
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Ana González-Cordón
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Maria Martínez-Rebollar
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Montserrat Laguno
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Berta Torres
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - José Luis Blanco
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Esteban Martínez
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Josep Mallolas
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | - Juan Ambrosioni
- HIV Unit, Infectious Disease Service, Hospital Clinic- Fundacio de Recerca Clinic Barcelona-Institut d'nvestigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
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Teyssou E, Soulie C, Fauchois A, Palich R, Nouchi A, Sayon S, Abdi B, Wirden M, Katlama C, Pourcher V, Marcelin AG, Calvez V. The RT M184V resistance mutation clearance in the reservoir is mainly related to CD4 nadir and viral load zenith independently of therapeutic regimen type. J Antimicrob Chemother 2024; 79:1673-1676. [PMID: 38804140 DOI: 10.1093/jac/dkae164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 05/05/2024] [Indexed: 05/29/2024] Open
Abstract
OBJECTIVES Resistance associated mutations (RAMs) are archived in the HIV reservoir and can re-emerge with an inappropriate ART use limiting treatment options. However, recent studies, using ultra-deep sequencing (UDS), showed a decrease of quasispecies harbouring RAMs, suggesting that recycling some antiretrovirals could be considered. The aim of this study was to characterize, in HIV treated PLWHIV, the M184V mutation decrease kinetics in proviral DNA and associated factors of M184V mutation clearance over time. METHODS UDS was performed on HIV-DNA from blood cells at different time points to quantify the percentage of M184V positive quasispecies. The sequence reads were analysed with a minimum coverage set at 50 and an ambiguity filter at 5% or 2%. RESULTS At 2.5 years after the first time point, the M184V lost was observed in 50% of PLWHIV. Moreover, univariate analyses highlight that a higher nadir CD4 count and a lower zenith HIV1 RNA viral load were correlated with a faster clearance of the mutation. In multivariate analysis, a higher zenith was negatively associated with the M184V clearance at the 5% threshold. Interestingly, lamivudine/emtricitabine presence in the ART therapy regiment during the 5 years was not associated with the persistence of the M184V. CONCLUSIONS Our study provides new information concerning the clearance speed of M184V mutation over time in PLWHIV with fully suppressed viremia, opens the discussion about the duration needed to consider a lamivudine/emtricitabine recycling and reinforces the association of the nadir and zenith values with the M184V mutation clearance.
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Affiliation(s)
- Elisa Teyssou
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Cathia Soulie
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Antoine Fauchois
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Romain Palich
- Service des maladies infectieuse, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Agathe Nouchi
- Service des Maladies Infectieuses, Sorbonne Université, INSERM, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Sophie Sayon
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Basma Abdi
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Marc Wirden
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Christine Katlama
- Service des maladies infectieuse, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Valérie Pourcher
- Service des maladies infectieuse, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Anne-Geneviève Marcelin
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
| | - Vincent Calvez
- Laboratoire de Virologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière-Charles Foix, F-75013 Paris, France
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Wong A, Brunetta J, De Wet J, Logue K, Loemba H, Saifi T, Mumm D, Marongiu A, Harrison R, Thorpe D, Trottier B. Twelve-month effectiveness and safety of bictegravir/emtricitabine/tenofovir alafenamide in people with HIV from the Canadian cohort of the observational BICSTaR study. Medicine (Baltimore) 2024; 103:e37785. [PMID: 38640301 PMCID: PMC11029942 DOI: 10.1097/md.0000000000037785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/29/2024] [Accepted: 03/13/2024] [Indexed: 04/21/2024] Open
Abstract
The BICSTaR (BICtegravir Single Tablet Regimen) study is investigating the effectiveness and safety of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in people with human immunodeficiency virus (HIV) treated in routine clinical practice. BICSTaR is an ongoing, prospective, observational cohort study across 14 countries. Treatment-naïve (TN) and treatment-experienced (TE) people with HIV (≥18 years of age) are being followed for 24 months. We present an analysis of the primary endpoint (HIV-1 RNA < 50 copies/mL; missing-equals-excluded [M = E]) at month 12 in the BICSTaR Canada cohort, including secondary (CD4 count, CD4/CD8 ratio, safety/tolerability) and exploratory (persistence, treatment satisfaction) endpoints. In total, 201 participants were enrolled in the BICSTaR Canada cohort. The analysis population included 170 participants (TN, n = 10; TE, n = 160), with data collected between November 2018 and September 2020. Of the participants, 88% were male, 72% were White, and 90% had ≥ 1 comorbid condition(s). Median (quartile [Q]1-Q3) age was 50 (39-58) years and baseline CD4 count was 391.5 (109.0-581.0) cells/µL in TN participants and 586.0 (400.0-747.0) cells/µL in TE participants. After 12 months of B/F/TAF treatment, HIV-1 RNA was < 50 copies/mL in 100% (9/9) of TN-active participants and 97% (140/145) of TE-active participants (M = E analysis). Median (Q1-Q3) CD4 cell count increased by +195 (125-307) cells/µL in TN participants and by + 30 (-50 to 123) cells/µL in TE participants. Persistence on B/F/TAF was high through month 12 with 10% (1/10) of TN and 7 % (11/160) of TE participants discontinuing B/F/TAF within 12 months of initiation of treatment. No resistance to B/F/TAF emerged. Study drug-related adverse events occurred in 7% (12/169) of participants, leading to B/F/TAF discontinuation in 4 of 169 participants. Improvements in treatment satisfaction were observed in TE participants. B/F/TAF demonstrated high levels of effectiveness, persistence, and treatment satisfaction, and was well tolerated through month 12 in people with HIV treated in routine clinical practice in Canada.
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Affiliation(s)
| | | | | | - Ken Logue
- St Clair Medical Associates, Toronto, ON, Canada
| | | | - Taban Saifi
- Gilead Sciences Canada, Inc., Mississauga, ON, Canada
| | - Dylana Mumm
- Gilead Sciences Canada, Inc., Mississauga, ON, Canada
| | | | | | | | - Benoit Trottier
- Clinique de Médecine Urbaine du Quartier Latin, Montreal, QC, Canada
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Esser S, Brunetta J, Inciarte A, Levy I, D'Arminio Monforte A, Lambert JS, van Welzen B, Teruya K, Boffito M, Liu CE, Altuntas Aydın O, Thorpe D, Heinzkill M, Marongiu A, Cassidy T, Haubrich R, D'Amato L, Robineau O. Twelve-month effectiveness and safety of bictegravir/emtricitabine/tenofovir alafenamide in people with HIV: Real-world insights from BICSTaR cohorts. HIV Med 2024; 25:440-453. [PMID: 38148567 DOI: 10.1111/hiv.13593] [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: 07/19/2023] [Accepted: 11/17/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND Real-world evidence is an essential component of evidence-based medicine. The aim of the BICSTaR (BICtegravir Single Tablet Regimen) study is to assess effectiveness and safety of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in antiretroviral treatment-naïve (TN) and treatment-experienced (TE) people with HIV. METHODS BICSTaR is a prospective, observational cohort study. Participants (≥18 years) are being followed for 24 months. A pooled analysis is presented at 12 months, with the primary endpoint of effectiveness (HIV-1 RNA <50 copies/mL) and secondary endpoints of safety and tolerability (as per protocol). An exploration of patient-reported outcome measures using standardized questionnaires is included. RESULTS Between June 2018 and May 2021, 1552 people with HIV were enrolled across 12 countries. The analysed population comprised 1509 individuals (279 TN, 1230 TE); most were white (76%), male (84%) and had one or more comorbid conditions (68%). Median age was 47 years. After 12 months of B/F/TAF treatment, HIV-1 RNA was <50 copies/mL in 94% (221/236) of TN participants and 97% (977/1008) of TE participants. Median CD4 cell count increased by 214 cells/μL (p < 0.001) in TN participants and 13 cells/μL (p = 0.014) in TE participants; median CD4/CD8 ratios increased by 0.30 and 0.03, respectively (both p < 0.001). Persistence was high at 12 months (TN, 97%; TE, 95%). No resistance to B/F/TAF emerged. Study drug-related adverse events occurred in 13% of participants through 12 months, leading to B/F/TAF discontinuation in 6%. CONCLUSIONS The findings of this study provide robust real-world evidence to support the broad use of B/F/TAF in both TN and TE people with HIV.
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Affiliation(s)
- Stefan Esser
- Clinic of Dermatology, Department of Venerology, University Hospital Essen, Essen, Germany
| | | | - Alexy Inciarte
- HIV Unit, Hospital Clinic of Barcelona, Barcelona, Spain
| | - Itzchak Levy
- Infectious Disease Unit, Sheba Medical Center, Israel and the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Antonella D'Arminio Monforte
- Clinic of Infectious Diseases, Department of Health Sciences, University of Milan, "ASST Santi Paolo e Carlo", Milan, Italy
| | - John S Lambert
- Mater Misericordiae University Hospital, University College Dublin, Dublin, Ireland
| | - Berend van Welzen
- Department of Infectious Diseases, University Medical Centre Utrecht, Utrecht, Netherlands
| | - Katsuji Teruya
- National Center for Global Health and Medicine: NCGM AIDS Clinical Center (ACC), Tokyo, Japan
| | | | - Chun-Eng Liu
- Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Ozlem Altuntas Aydın
- University of Health Sciences, Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey
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5
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Frange P, Veber F, Burgard M, Blanche S, Avettand-Fenoel V. Bictegravir/emtricitabine/tenofovir alafenamide in paediatrics: Real-life experience from a French cohort (2019-2023). HIV Med 2024; 25:299-305. [PMID: 37807595 DOI: 10.1111/hiv.13562] [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: 08/25/2023] [Accepted: 09/22/2023] [Indexed: 10/10/2023]
Abstract
OBJECTIVES Although widely recommended, data on bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) efficacy in HIV-1-infected children/adolescents are mainly extrapolated from studies in adults and one paediatric trial in which subjects have good treatment adherence. This study aimed to provide data about the risk of virological failure (VF) and acquired genotypic resistance in children and adolescents receiving BIC/FTC/TAF in a real-world setting. METHODS This retrospective monocentric study included 74 paediatric patients who received BIC/FTC/TAF during ≥6 months in 2019-2023. VF was defined as not achieving a plasma viral load <50 copies/mL within 6 months of BIC/FTC/TAF initiation or as experiencing virological rebound ≥50 copies/mL. RESULTS Most patients were antiretroviral therapy (ART)-experienced (93.2%), previously exposed to integrase inhibitors (85.1%) and displayed viral suppression at baseline (67.6%). Their median age was 11.2 years [interquartile range (IQR): 8.8-15.2]. BIC/FTC/TAF introduction reduced treatment burden in most ART-experienced subjects. Genotypic susceptibility score of BIC/FTC/TAF was ≥2 in all cases. Median follow-up was 40 months (IQR: 21-46). VF occurred in 28 people (37.8%), more frequently in the case of VF versus viral suppression at baseline (68% vs. 26%, P = 0.02). BIC/FTC/TAF was interrupted for suspected intolerance in only one case (1.4%). Nucleoside reverse transcriptase inhibitor (NRTI) mutation (T69D/N) emerged in one patient (3.6% of VF) after 47 months of continuous detectable viraemia while on ART. No acquisition of mutations in the integrase gene was observed. CONCLUSION Because of its high genetic barrier to resistance, BIC/FTC/TAF could be especially useful in the paediatric population, in which the risk of poor treatment adherence and VF is high.
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Affiliation(s)
- P Frange
- Laboratoire de Microbiologie Clinique, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
- EHU 7328 PACT, Institut Imagine, Université Paris Cité, Paris, France
- Unité d'Immunologie, Hématologie et Rhumatologie Pédiatriques, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - F Veber
- Unité d'Immunologie, Hématologie et Rhumatologie Pédiatriques, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - M Burgard
- Laboratoire de Microbiologie Clinique, Hôpital Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France
| | - S Blanche
- Unité d'Immunologie, Hématologie et Rhumatologie Pédiatriques, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
- Université Paris Cité, Paris, France
| | - V Avettand-Fenoel
- Université Paris Cité, Paris, France
- INSERM, U1016, CNRS, UMR8104, Institut Cochin, Paris, France
- Laboratoire de Virologie, Hôpital Cochin, AP-HP, Paris, France
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Januszka JE, Drwiega EN, Badowski ME. Bictegravir/Emtricitabine/Tenofovir Alafenamide for HIV-1: What is the Hidden Potential of This Emerging Treatment? HIV AIDS (Auckl) 2023; 15:705-711. [PMID: 38050483 PMCID: PMC10693755 DOI: 10.2147/hiv.s385877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/27/2023] [Indexed: 12/06/2023] Open
Abstract
Bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) is a single-tablet antiretroviral therapy regimen. B/F/TAF has become a popular treatment choice because of its small tablet size, high barrier to resistance, favorable tolerability, and limited drug-drug interaction profile. Continued research on B/F/TAF has revealed additional potential for this regimen. This review presents recent literature supporting the use of B/F/TAF as an option for consolidating therapy and maintaining virologic suppression in individuals despite M184V/I mutations. Additionally, children are a unique patient population with limited antiviral options. Standard dose B/F/TAF has demonstrated similar drug exposure in children and adolescents as adults, and low-dose B/F/TAF is approved for children living with HIV greater than two years of age and weighing at least 14 kg. Data supporting this recommendation is described in this review. Finally, despite a lack of prospective data, B/F/TAF may have a role in the future of pre- and post-exposure prophylaxis. This review discusses these discoveries and the continued exploration of the hidden potential of B/F/TAF.
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Affiliation(s)
- Jenna E Januszka
- University of Illinois at Chicago, College of Pharmacy, Chicago, IL, USA
| | - Emily N Drwiega
- University of Illinois at Chicago, College of Pharmacy, Chicago, IL, USA
| | - Melissa E Badowski
- University of Illinois at Chicago, College of Pharmacy, Chicago, IL, USA
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7
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DeKoven S, Naccarato M, Brumme CJ, Tan DHS. Treatment-emergent reverse transcriptase resistance during antiretroviral therapy with bictegravir, tenofovir alafenamide, and emtricitabine: A case series. HIV Med 2023; 24:1137-1143. [PMID: 37317505 DOI: 10.1111/hiv.13520] [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: 04/04/2023] [Accepted: 05/26/2023] [Indexed: 06/16/2023]
Abstract
OBJECTIVES Bictegravir/tenofovir alafenamide/emtricitabine (BIC/TAF/FTC) is a complete regimen for the treatment of HIV with a high barrier to resistance and few reported cases of treatment failure. We present three cases of treatment-emergent resistance to nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs) in patients with suboptimal treatment adherence and assess whether the resistance-associated mutations were present before BIC/TAF/FTC initiation or emerged during therapy. METHODS We used genotypic drug resistance testing by Sanger sequencing to identify emergent resistance mutations in plasma viral load specimens collected after combination antiretroviral therapy initiation in all participants. Additionally, we performed ultra-deep sequencing by Illumina MiSeq on the earliest available plasma HIV-1 viral load specimen and on any available specimens closest in time to the initiation of BIC/TAF/FTC therapy to identify low-abundance resistance mutations present in the viral quasispecies. RESULTS All three participants developed NRTI resistance after prolonged exposure and incomplete adherence to BIC/TAF/FTC. The T69N, K70E, M184I, and/or T215I mutations identified in clinical samples at the time of virological failure were not present on deep sequencing of either baseline samples or samples collected before BIC/TAF/FTC initiation. CONCLUSIONS Despite a generally high genetic barrier to resistance, NRTI resistance-associated mutations may emerge during therapy with BIC/TAF/FTC in the setting of suboptimal adherence.
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Affiliation(s)
- Samuel DeKoven
- Department of Family and Community Medicine, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Mark Naccarato
- Department of Pharmacy, Henry Ford Hospital, Detroit, Michigan, USA
| | - Chanson J Brumme
- BC Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada
- Division of Infectious Diseases, University of British Columbia, Vancouver, British Columbia, Canada
| | - Darrell H S Tan
- Division of Infectious Diseases, St. Michael's Hospital, Toronto, Ontario, Canada
- MAP Centre for Urban Health Solutions, St. Michael's Hospital, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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Chen GJ, Sun HY, Chang SY, Hsieh SM, Sheng WH, Chuang YC, Huang YS, Lin KY, Liu WC, Su YC, Hung CC. Effectiveness of second-generation integrase strand-transfer inhibitor-based regimens for antiretroviral-experienced people with HIV who had viral rebound. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2023; 56:988-995. [PMID: 37574435 DOI: 10.1016/j.jmii.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 07/22/2023] [Accepted: 07/31/2023] [Indexed: 08/15/2023]
Abstract
BACKGROUND Antiretroviral regimens containing a second-generation integrase strand-transfer inhibitor (INSTI) plus 2 nucleos(t)ide reverse-transcriptase inhibitors (NRTIs) are the recommended therapy for people with HIV (PWH) who are antiretroviral-naïve or on stable antiretroviral therapy (ART) with viral suppression. Real-world data on the virologic effectiveness of co-formulated bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) among PWH with virologic failure while receiving other ART remain sparse. METHODS We retrospectively reviewed the medical records of PWH who had viral rebound with plasma HIV RNA >1000 copies/mL and were switched to either dolutegravir combined with 2 NRTIs or BIC/FTC/TAF. The primary end point was re-achieving viral suppression within the first 48 weeks of switch. The association between NRTI-related resistance-associated mutations (RAMs) and virologic effectiveness was examined. RESULTS Seventy-nine PWH with viral rebound while receiving other antiretroviral regimens were included. Within the first 48 weeks of switch, the overall probability of re-achieving viral suppression was 79.7% (82.5% [33/40] and 76.9% [30/39] for BIC/FTC/TAF and dolutegravir-based regimens, respectively, p = 0.78). PWH with a higher CD4 lymphocyte count (adjusted odds ratio, per 100-cell/mm3 increase, 1.41; 95% confidence interval, 1.02-1.95) were more likely to re-achieve viral suppression. Among PWH switching to BIC/FTC/TAF who had pre-existing RAMs to NRTIs before switch, 14 of 15 (93.3%) successfully achieved viral suppression. CONCLUSIONS Switching to BIC/FTC/TAF and dolutegravir-based regimens could re-achieve viral suppression in four-fifth of the PWH who experienced viral rebound during treatment with other antiretroviral regimens. Pre-existing NRTI-related RAMs did not have adverse impact on the effectiveness of dolutegravir combined with 2 NRTIs or BIC/FTC/TAF.
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Affiliation(s)
- Guan-Jhou Chen
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan; Min-Sheng General Hospital, Taoyuan, Taiwan
| | - Hsin-Yun Sun
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Sui-Yuan Chang
- Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College Medicine, Taipei, Taiwan; Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Szu-Min Hsieh
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wang-Hui Sheng
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Chung Chuang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yu-Shan Huang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Kuan-Yin Lin
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wen-Chun Liu
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yi-Ching Su
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chien-Ching Hung
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan; Department of Tropical Medicine and Parasitology, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin, Taiwan.
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9
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Basso M, Battagin G, Nicolè S, Rossi MC, Colombo F, Pirola N, Baratti S, Storato S, Giovagnorio F, Malagnino V, Alessio G, Vinci A, Maurici M, Sarmati L, Parisi SG. Predicting Factors of Plasma HIV RNA Undetectability after Switching to Co-Formulated Bictegravir, Emtricitabine, and Tenofovir Alafenamide in Experienced HIV-1 Patients: A Multicenter Study. Viruses 2023; 15:1727. [PMID: 37632071 PMCID: PMC10458950 DOI: 10.3390/v15081727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/01/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Switching to bictegravir, emtricitabine, and tenofovir alafenamide (BIC/FTC/TAF) from other antiretroviral regimens is safe and effective for virologically suppressed people living with HIV (PLWH). The term virological suppression includes both low but detectable HIV viremia and undetectable HIV viremia, and the latter is possibly associated with a lower immune activation state. Herein, we describe a 24-month follow-up of experienced PLWH with plasma HIV RNA undetectable or detectable < 50 copies/ml switching to BIC/FTC/TAF. A previous 12-month monitoring was available, and the factors correlated with treatment efficacy. This retrospective multicenter study included PLWH who switched to BIC/FTC/TAF in the period of 2019-2022, and who were HBsAg and HCV RNA negative. The follow-up study times were 6 (T6), 12 (T12), 18 (T18), and 24 (T24) months after the switch (T0). Survival analysis with multiple-failure-per-subject design, Kaplan-Meier survival estimates, multivariate analysis of variance, multilevel linear regression, and a hierarchical ordered logistic model were applied. A total of 329 PLWH had plasma HIV RNA which was either undetectable or detectable at <50 copies/mL at T0, and 197 responded to all inclusion criteria: M/F 140/57; the median CD4+ cell count was 677 cells/mm3; and HIV RNA at T0 was undetectable in 108 patients. Most of the 197 patients (122, 61.9%) were on a previous INSTI-based regimen. HIV RNA undetectability was more frequent at each follow-up point in patients with HIV RNA that was undetectable at T0, and it showed a higher frequency throughout the follow-up period in patients with always-undetectable HIV RNA in the 12 months before the switch. A higher nadir CD4 cell count had a predictive role, and HBcAb positivity had no influence. In conclusion, the switch could be programmed and possibly delayed on a case-by-case basis in order to achieve persistent plasma HIV RNA undetectability. Undiagnosed loss of HBcAb has no detrimental consequences on the response to BIC/FTC/TAF.
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Affiliation(s)
- Monica Basso
- Department of Molecular Medicine, University of Padova, Via Gabelli, 63, 35100 Padova, Italy; (M.B.); (F.C.); (N.P.); (F.G.)
| | - Giuliana Battagin
- Infectious Diseases Unit, Vicenza Hospital, 36100 Vicenza, Italy; (G.B.); (S.N.)
| | - Stefano Nicolè
- Infectious Diseases Unit, Vicenza Hospital, 36100 Vicenza, Italy; (G.B.); (S.N.)
| | | | - Francesco Colombo
- Department of Molecular Medicine, University of Padova, Via Gabelli, 63, 35100 Padova, Italy; (M.B.); (F.C.); (N.P.); (F.G.)
| | - Nicole Pirola
- Department of Molecular Medicine, University of Padova, Via Gabelli, 63, 35100 Padova, Italy; (M.B.); (F.C.); (N.P.); (F.G.)
| | - Stefano Baratti
- Infectious Diseases Unit, Venezia Hospital, 30122 Venezia, Italy; (S.B.); (S.S.)
| | - Silvia Storato
- Infectious Diseases Unit, Venezia Hospital, 30122 Venezia, Italy; (S.B.); (S.S.)
| | - Federico Giovagnorio
- Department of Molecular Medicine, University of Padova, Via Gabelli, 63, 35100 Padova, Italy; (M.B.); (F.C.); (N.P.); (F.G.)
| | - Vincenzo Malagnino
- Infectious Disease Unit, Department of System Medicine, Tor Vergata University and Hospital, 00133 Rome, Italy; (V.M.); (G.A.); (L.S.)
| | - Grazia Alessio
- Infectious Disease Unit, Department of System Medicine, Tor Vergata University and Hospital, 00133 Rome, Italy; (V.M.); (G.A.); (L.S.)
| | - Antonio Vinci
- Doctoral School in Nursing Science and Public Health, University of Rome “Tor Vergata”, 00133 Rome, Italy;
| | - Massimo Maurici
- Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00133 Rome, Italy;
| | - Loredana Sarmati
- Infectious Disease Unit, Department of System Medicine, Tor Vergata University and Hospital, 00133 Rome, Italy; (V.M.); (G.A.); (L.S.)
| | - Saverio Giuseppe Parisi
- Department of Molecular Medicine, University of Padova, Via Gabelli, 63, 35100 Padova, Italy; (M.B.); (F.C.); (N.P.); (F.G.)
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10
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van Kampen JJA, Pham HT, Yoo S, Overmars RJ, Lungu C, Mahmud R, Schurink CAM, van Boheemen S, Gruters RA, Fraaij PLA, Burger DM, Voermans JJC, Rokx C, van de Vijver DAMC, Mesplède T. HIV-1 resistance against dolutegravir fluctuates rapidly alongside erratic treatment adherence: a case report. J Glob Antimicrob Resist 2022; 31:323-327. [PMID: 36347497 DOI: 10.1016/j.jgar.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/26/2022] [Accepted: 11/02/2022] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVES We report a case of incomplete HIV-1 suppression on a dolutegravir, lamivudine, and abacavir single-tablet regimen with the emergence of the H51Y and G118R integrase resistance mutations. METHODS Integrase sequencing was performed retrospectively by Sanger and next-generation sequencing. Rates of emergence and decline of resistance mutations were calculated using next-generation sequencing data. Dolutegravir plasma concentrations were measured by ultra-performance liquid chromatography-tandem mass spectrometry. The effects of H51Y and G118R on infectivity, fitness, and susceptibility to dolutegravir were quantified using cell-based assays. RESULTS During periods of non-adherence to treatment, mutations were retrospectively documented only by next-generation sequencing. Misdiagnosis by Sanger sequencing was caused by the rapid decline of mutant strains within the retroviral population. This observation was also true for a M184V lamivudine-resistant reverse transcriptase mutation found in association with integrase mutations on single HIV genomes. Resistance rebound upon treatment re-initiation was swift (>8000 copies per day). Next-generation sequencing indicated cumulative adherence to treatment. Compared to WT HIV-1, relative infectivity was 73%, 38%, and 43%; relative fitness was 100%, 35%, and 10% for H51Y, G118R, and H51Y+G118R viruses, respectively. H51Y did not change the susceptibility to dolutegravir, but G188R and H51Y+G118R conferred 7- and 28-fold resistance, respectively. CONCLUSION This case illustrates how poorly-fit drug-resistant viruses wax and wane alongside erratic treatment adherence and are easily misdiagnosed by Sanger sequencing. We recommend next-generation sequencing to improve the clinical management of incomplete virological suppression with dolutegravir.
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Affiliation(s)
| | - Hanh Thi Pham
- Department of Microbiology and Immunology, McGill University, Canada
| | - Sunbin Yoo
- Department of Microbiology and Immunology, McGill University, Canada
| | - Ronald J Overmars
- Viroscience department, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Cynthia Lungu
- Viroscience department, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Rizwan Mahmud
- Viroscience department, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Carolina A M Schurink
- Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, The Netherlands; Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - Rob A Gruters
- Viroscience department, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Pieter L A Fraaij
- Viroscience department, Erasmus Medical Center, Rotterdam, The Netherlands; Department of Pediatrics, Subdivision Infectious Diseases and Immunology, Sophia's Children Hospital, Erasmus Medical Center, Rotterdam, The Netherlands
| | - David M Burger
- Department of Pharmacy, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Casper Rokx
- Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Center, Rotterdam, The Netherlands; Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - Thibault Mesplède
- Viroscience department, Erasmus Medical Center, Rotterdam, The Netherlands.
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