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Gagliardini R, Tavelli A, Rusconi S, Lo Caputo S, Spagnuolo V, Santoro MM, Costantini A, Vergori A, Maggiolo F, Giacomelli A, Burastero G, Madeddu G, Quiros Roldan E, d'Arminio Monforte A, Antinori A, Cozzi-Lepri A. Characterization and outcomes of difficult-to-treat patients starting modern first-line ART regimens: Data from the ICONA cohort. Int J Antimicrob Agents 2024; 63:107018. [PMID: 38214244 DOI: 10.1016/j.ijantimicag.2023.107018] [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: 04/19/2023] [Revised: 10/13/2023] [Accepted: 10/23/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVES Treatment failures to modern antiretroviral therapy (ART) raise concerns, as they could reduce future options. Evaluations of occurrence of multiple failures to modern ART are missing and their significance in the long run is unclear. METHODS People with HIV (PWH) in the ICONA cohort who started a modern first-line ART were defined as 'difficult to treat' (DTT) if they experienced ≥1 among: i) ≥2 VF (2 viral loads, VL>200 copies/mL or 1 VL>1000 copies/mL) with or without ART change; ii) ≥2 treatment discontinuations (TD) due to toxicity/intolerance/failure; iii) ≥1 VF followed by ART change plus ≥1 TD due to toxicity/intolerance/failure. A subgroup of the DTT participants were matched to PWH that, after the same time, were non-DTT. Treatment response, analysing VF, TD, treatment failure, AIDS/death, and SNAE (Serious non-AIDS event)/death, were compared. Survival analysis by KM curves and Cox regression models were employed. RESULTS Among 8061 PWH, 320 (4%) became DTT. Estimates of becoming DTT was 6.5% (95% CI: 5.8-7.4%) by 6 years. DTT PWH were significantly older, with a higher prevalence of AIDS and lower CD4+ at nadir than the non-DTT. In the prospective analysis, DTT demonstrated a higher unadjusted risk for all the outcomes. Once controlled for confounders, significant associations were confirmed for VF (aHR 2.23, 1.33-3.73), treatment failure (aHR 1.70, 1.03-2.78), and SNAE/death (aHR 2.79, 1.18-6.61). CONCLUSION A total of 6.5% of PWH satisfied our definition of DTT by 6 years from ART starting. This appears to be a more fragile group who may have higher risk of failure.
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Affiliation(s)
- Roberta Gagliardini
- INMI L Spallanzani IRCCS, Clinical Department of Infectious Diseases and Research, Roma, Italy.
| | | | - Stefano Rusconi
- Ospedale di Legnano, Struttura Complessa Malattie Infettive, Legnano, Italy and DIBIC, University of Milan, Italy
| | | | - Vincenzo Spagnuolo
- IRCCS San Raffaele Scientific Institute, Infectious Diseases Unit, Milan, Italy
| | | | - Andrea Costantini
- Clinical Immunology Unit, Azienda Ospedaliero Universitaria delle Marche and Marche Polytechnic University, Ancona, Italy
| | - Alessandra Vergori
- INMI L Spallanzani IRCCS, Clinical Department of Infectious Diseases and Research, Roma, Italy
| | - Franco Maggiolo
- ASST Papa Giovanni XXIII, Infectious Diseases Unit, Bergamo, Italy
| | - Andrea Giacomelli
- ASST Fatebenefratelli Sacco, Ospedale Luigi Sacco, III Infectious Diseases Unit, Milano, Italy
| | - Giulia Burastero
- Azienda Ospedaliero-Universitaria di Modena, Infectious Disease Clinic, Modena, Italy
| | - Giordano Madeddu
- University of Sassari, Department of Medical, Surgical, and Experimental Sciences, Sassari, Italy
| | - Eugenia Quiros Roldan
- University of Brescia and ASST Spedali Civili of Brescia, Department of Infectious and Tropical Diseases, Brescia, Italy
| | | | - Andrea Antinori
- INMI L Spallanzani IRCCS, Clinical Department of Infectious Diseases and Research, Roma, Italy
| | - Alessandro Cozzi-Lepri
- Institute for Global Health, UCL, Centre for Clinical Research, Epidemiology, Modelling and Evaluation (CREME), London, United Kingdom
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Sangaré MN, Baril JG, de Pokomandy A, Klein M, Thomas R, Tremblay C, Pexos C, Durand M, Chawla S, Laporte L, Trottier H. CD4/CD8 Ratio Outcome According to the Class of the Third Active Drug in Antiretroviral Therapy Regimens: Results From the Quebec Human Immunodeficiency Virus Cohort Study. Clin Infect Dis 2023; 76:1879-1888. [PMID: 36722329 DOI: 10.1093/cid/ciad056] [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: 08/23/2022] [Revised: 01/18/2023] [Accepted: 01/27/2023] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The impact of different therapeutic classes of drugs in antiretroviral therapy (ART) regimens on the CD4/CD8 ratio is not well documented in people treated for HIV. The objective of this study was to analyze the long-term effect of exposure to integrase strand transfer inhibitor (INSTI) on CD4/CD8 ratio compared with nonnucleoside reverse transcriptase inhibitor (NNRTI) or protease inhibitor (PI) among ART-treated persons with HIV (PWH). METHODS Data from the Quebec HIV Cohort collected from 31 August 2017 were used. Our analysis included all patients in the cohort who received a first or subsequent ART regimen composed of 2 nucleoside reverse transcriptase inhibitors (NRTIs) and a third active drug of a different class (NNRTI, PI, or INSTI) for at least 16 weeks. Marginal structural Cox models were constructed to estimate the effect of different therapeutic classes on the CD4/CD8 ratio outcome. RESULTS Among the 3907 eligible patients, 972 (24.9%), 1996 (51.1%), and 939 (24.0%) were exposed to an ART regimen whose third active agent was an NNRTI, PI, or INSTI, respectively. The total follow-up time was 13 640.24 person-years. The weighted hazard ratio for the association between the third active class and CD4/CD8 ratio ≥1 was .56 (95% confidence interval [CI]: .48-.65) for patients exposed to NNRTI + 2 NRTIs and .41 (95% CI: .35-.47) for those exposed to PI + 2 NRTIs, compared with those exposed INSTI + 2 NRTIs. CONCLUSIONS For people treated for HIV, INSTI-based ART appears to be associated with a higher CD4/CD8 ratio than NNRTI and PI-based ART.
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Affiliation(s)
| | - Jean-Guy Baril
- Clinique de Médecine Urbaine du Quartier Latin, Montreal, Canada
- Faculty of Medicine, Université de Montréal, Montreal, Canada
- Centre Hospitalier de l'Université de Montréal, Montreal, Canada
| | - Alexandra de Pokomandy
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, Canada
- Department of Family Medicine, McGill University, Montreal, Canada
| | - Marina Klein
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, Canada
| | | | - Cécile Tremblay
- Faculty of Medicine, Université de Montréal, Montreal, Canada
- Centre Hospitalier de l'Université de Montréal, Montreal, Canada
- Department of Microbiology, Infectious Diseases, and Immunology, Université de Montréal, Montreal, Canada
- Department of Microbiology and Immunology, Centre Hospitalier de l'Université de Montréal, Montreal, Canada
| | - Costa Pexos
- Chronic Viral Illness Service, McGill University Health Centre, Montreal, Canada
| | - Madeleine Durand
- Department of Microbiology, Infectious Diseases, and Immunology, Université de Montréal, Montreal, Canada
| | - Seerat Chawla
- Department of Family Medicine, McGill University, Montreal, Canada
| | - Louise Laporte
- Sainte Justine University Hospital Center, Montreal, Canada
| | - Helen Trottier
- Sainte Justine University Hospital Center, Montreal, Canada
- Department of Social and Preventive Medicine, Université de Montréal, Montreal, Canada
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Gagliardini R, Lorenzini P, Cozzi-Lepri A, Tavelli A, Borghi V, Galli L, Tagliaferri G, Maggiolo F, Mussini C, Castagna A, Monforte AD, Antinori A. Real world efficacy of dolutegravir plus lamivudine in people living with HIV with undetectable viral load after previous failures. J Glob Antimicrob Resist 2023; 32:158-163. [PMID: 36402369 DOI: 10.1016/j.jgar.2022.11.010] [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: 09/15/2022] [Revised: 10/28/2022] [Accepted: 11/09/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Dolutegravir (DTG) +lamivudine (3TC) combination has been found to be as effective as triple therapies, and has been extensively prescribed in clinical practice as a maintenance therapy. We aimed to investigate the effect of previous virological failures (VFs) on virological efficacy. METHODS The analysis included data of people living with HIV (PLWH) with HIV-RNA ≤50 copies/mL enrolled in an Italian retrospective multicohort study who were switching to DTG+3TC. Primary endpoint was viral rebound (VR; confirmed HIV-RNA ≥50 copies/mL or single HIV-RNA ≥50 copies/mL followed by change of antiretroviral therapies [ART]). Kaplan-Meier curves were used to estimate probabilities of VR based upon histories of previous VFs (single HIV-RNA ≥1000 copies/mL or confirmed HIV-RNA ≥50 copies/mL). A weighted Cox regression model was fitted to estimate the causal hazard ratio (HR) of history of failure on the risk of VR. RESULTS A total of 966 PLWH were included; 20.1% had a history of previous VF. VR was detected in 23 PLWH. The one-year probability was 1.2% (95% confidence interval [CI], 0.2%-2.2%) in PLWH without previous VF and 3.3% (95% CI, 0.4%-6.2%) in those with ≥1 VF (log-rank P = 0.042). By multivariate analysis adjusted for CD4+ cell count at nadir, duration of virological suppression, and mode of HIV transmission, PLWH with ≥1 previous VF had a higher risk of virological rebound than those without previous VF (adjusted hazard ratio 3.06 [95% CI, 1.00-9.44], P = 0.051). CONCLUSION Despite the low absolute one-year risk in both groups, real-world data confirmed that PLWH with a previous failure have an increased risk of viral rebound.
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Affiliation(s)
| | | | | | | | - Vanni Borghi
- Azienda Ospedaliera Universitaria Policlinico di Modena, Modena, Italy
| | - Laura Galli
- Infectious Diseases Clinic, IRCCS San Raffaele, Milan, Italy
| | - Gianmarco Tagliaferri
- ASST Santi Paolo e Carlo, Department of Health Sciences, University of Milan, Milan, Italy
| | | | - Cristina Mussini
- Azienda Ospedaliera Universitaria Policlinico di Modena, Modena, Italy
| | - Antonella Castagna
- Infectious Diseases Clinic, IRCCS San Raffaele, Milan, Italy; San Raffaele Vita-Salute University, Milan, Italy
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