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Harada K, Piao Y, Rubino A, Lee K, Mezzio D, Taguchi N, Tanikawa T, Gatanaga H. Prevalence and clinical characteristics of people with HIV with limited treatment options in Japan: A Japanese claims data analysis. J Infect Chemother 2024; 30:1266-1273. [PMID: 38871253 DOI: 10.1016/j.jiac.2024.06.003] [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: 01/28/2024] [Revised: 03/28/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
INTRODUCTION Long-term medication leads some people with HIV (PWH) to limited treatment options (LTO) due to multiple factors. The present study investigated the prevalence of PWH with LTO in Japan and their clinical characteristics, persistence, and adherence. METHODS PWH who received antiretroviral therapy (ART) between 2017 and 2022 were identified in the Medical Data Vision (MDV) Japanese claims database. PWH with LTO were defined as: 1) receiving regimens indicative for LTO or 2) having a complex treatment history (≥4 different core agents, ≥11 ART agents). Prevalence by calendar year, clinical characteristics, persistence, and adherence measured by the proportion of days covered (PDC) of ART were investigated. RESULTS A total of 5740 PWH were included, and 207 (3.6 %) were identified as LTO. Mean (SD) age was 50.3 (11.8) years, 148 (71.5 %) had evidence of AIDS-defining condition, and 25 (12.1 %) had hemophilia. The prevalence of PWH with LTO increased from 2.58 % in 2017 to 3.55 % in 2022. Persistence at 1 year was estimated as 70.3 % and mean PDC through 1 year was 96.7 %. CONCLUSION Between the years 2017-2022, 3.6 % (approximately 200) Japanese PWH were identified as having LTO. The results of this analysis found clinical characteristics of PWH with LTO as older age and higher percentages with an AIDS-defining condition and hemophilia than the general HIV population. Low persistence indicates that treatment optimization is required in this population. These results will help health care providers to understand the clinical characteristics of PWH with LTO and may contribute to the establishment of appropriate treatment strategies.
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Affiliation(s)
| | - Yi Piao
- Gilead Sciences K.K., Tokyo, Japan
| | | | | | | | | | | | - Hiroyuki Gatanaga
- AIDS Clinical Center, National Center for Global Health and Medicine, Tokyo, Japan
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Zaçe D, Rindi LV, Compagno M, Colagrossi L, Santoro MM, Andreoni M, Perno CF, Sarmati L. Managing low-level HIV viraemia in antiretroviral therapy: a systematic review and meta-analysis. Sex Transm Infect 2024:sextrans-2024-056198. [PMID: 39288983 DOI: 10.1136/sextrans-2024-056198] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 07/30/2024] [Indexed: 09/19/2024] Open
Abstract
OBJECTIVE HIV-1 management has advanced significantly with antiretroviral therapy (ART), yet challenges persist, including low-level HIV-1 viraemia (LLV). LLV presents a complex scenario, with varied definitions in the literature, reflecting uncertainties in its clinical interpretation. Questions arise regarding the underlying mechanisms of LLV, whether it signifies ongoing viral replication or stems from other factors. This study aimed to systematically review strategies for LLV management, providing insights into optimal clinical approaches. METHODS MEDLINE, EMBASE, Cochrane Library, Web of Science and Canadian Agency for Drugs and Technologies in Health were searched for relevant literature on LLV management. We included studies published between 2004 and 2024, assessing interventions such as ART modification, genotypic resistance testing, adherence assessment, performing therapeutic drug monitoring, testing for chronic coinfections and assessing the viral reservoir via HIV DNA quantification. Meta-analyses were conducted where feasible. RESULTS The systematic review identified 48 eligible records. Findings indicated limited evidence supporting the effectiveness of ART regimen modification in achieving virological suppression among individuals with LLV. However, studies assessing genotypic resistance testing revealed a significant association between resistance-associated mutations and virological suppression during LLV. Adherence to ART emerged as a critical determinant of treatment efficacy, with interventions showing promise in achieving viral suppression. The clinical utility of therapeutic drug monitoring in managing LLV remained inconclusive. Gaps in the literature were identified regarding follow-up scheduling, managing concurrent chronic infections and assessing inflammatory markers in LLV management. CONCLUSIONS While ART modification may not consistently achieve virological suppression, genotypic resistance testing may offer insights into treatment outcomes. Adherence to ART emerged as a crucial factor, necessitating tailored interventions. However, further research is needed to elucidate the clinical utility of therapeutic drug monitoring and other management strategies. The study highlights the importance of ongoing research to refine therapeutic approaches and improve patient outcomes in LLV management. PROSPERO REGISTRATION NUMBER CRD42024511492.
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Affiliation(s)
- Drieda Zaçe
- Infectious Disease Clinic, Department of Systems Medicine, University of Rome Tor Vergata, Roma, Italy
| | - Lorenzo Vittorio Rindi
- Infectious Disease Clinic, Department of Systems Medicine, University of Rome Tor Vergata, Roma, Italy
| | - Mirko Compagno
- Infectious Disease Clinic, Department of Systems Medicine, University of Rome Tor Vergata, Roma, Italy
| | - Luna Colagrossi
- Microbiology and Diagnostic Immunology, Bambino Gesu Paediatric Hospital, Roma, Italy
| | | | - Massimo Andreoni
- Infectious Disease Clinic, Department of Systems Medicine, University of Rome Tor Vergata, Roma, Italy
| | - Carlo Federico Perno
- Microbiology and Diagnostic Immunology, Bambino Gesu Paediatric Hospital, Roma, Italy
- UniCamillus, Rome, Italy
| | - Loredana Sarmati
- Infectious Disease Clinic, Department of Systems Medicine, University of Rome Tor Vergata, Roma, Italy
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Rindi LV, Zaçe D, Compagno M, Colagrossi L, Santoro MM, Andreoni M, Perno CF, Sarmati L. Management of low-level HIV viremia during antiretroviral therapy: Delphi consensus statement and appraisal of the evidence. Sex Transm Infect 2024:sextrans-2024-056199. [PMID: 39288982 DOI: 10.1136/sextrans-2024-056199] [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: 04/03/2024] [Accepted: 07/30/2024] [Indexed: 09/19/2024] Open
Abstract
OBJECTIVE While antiretroviral therapy (ART) is highly effective, detection of low levels of HIV-1 RNA in plasma is common in treated individuals. Given the uncertainties on the topic, we convened a panel of experts to consider different clinical scenarios, producing a Delphi consensus to help guide clinical practice. METHODS A panel of 17 experts in infectious diseases, virology and immunology rated 32 statements related to four distinct scenarios: (1) low-level viremia during stable (≥6 months) first-line ART (≥2 consecutive HIV-1 RNA measurements 50-500 copies/mL); (2) a viral blip during otherwise suppressive ART (a HIV-1 RNA measurement 50-1000 copies/mL with adjacent measurements <50 copies/mL); (3) low-level viral rebound during previously suppressive ART (≥2 consecutive HIV-1 RNA measurements 50-500 copies/mL); (4) residual viremia during suppressive ART (persistent HIV-1 RNA quantification below 50 copies/mL). A systematic review, conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analysis statement, informed the 32 statements. The Delphi procedure was modified to include two voting rounds separated by a moderated group discussion. Grading of Recommendations, Assessment, Development, and Evaluations-based recommendations were developed. RESULTS Overall, 18/32 statements (56.2%) achieved a strong consensus, 3/32 (9.4%) achieved a moderate consensus and 11/32 (34.4%) did not achieve a consensus. Across the four scenarios, the panel unanimously emphasised the importance of implementing specific interventions prior to considering therapy changes, including assessing adherence, testing for genotypic drug resistance and scheduling more frequent follow-up visits. Strategies indicated in selected circumstances included therapeutic drug monitoring, quantifying total HIV-1 DNA and evaluating concomitant chronic infections. CONCLUSIONS While acknowledging the many uncertainties about source, significance and optimal management of low-level viremia during ART, the findings provide insights to help harmonise clinical practice. There is a need for well-designed randomised studies assessing different interventions to manage low-level viremia and future research regarding its definition.
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Affiliation(s)
- Lorenzo Vittorio Rindi
- Department of Systems Medicine, Infectious Disease Clinic, University of Rome Tor Vergata, Roma, Lazio, Italy
| | - Drieda Zaçe
- Department of Systems Medicine, Infectious Disease Clinic, University of Rome Tor Vergata, Roma, Lazio, Italy
| | - Mirko Compagno
- Department of Systems Medicine, Infectious Disease Clinic, University of Rome Tor Vergata, Roma, Lazio, Italy
| | - Luna Colagrossi
- Microbiology and Diagnostic Immunology, Bambino Gesu Paediatric Hospital, Roma, Italy
| | | | - Massimo Andreoni
- Department of Systems Medicine, Infectious Disease Clinic, University of Rome Tor Vergata, Roma, Lazio, Italy
| | - Carlo Federico Perno
- Microbiology and Diagnostic Immunology, Bambino Gesu Paediatric Hospital, Roma, Italy
- UniCamillus, Rome, Italy
| | - Loredana Sarmati
- Department of Systems Medicine, Infectious Disease Clinic, University of Rome Tor Vergata, Roma, Lazio, Italy
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Maggiolo F, Taramasso L, Valenti D, Blanchi S, Centorrino F, Comi L, Di Biagio A. B/F/TAF forgiveness to non-adherence. Sex Transm Infect 2024:sextrans-2024-056202. [PMID: 38964843 DOI: 10.1136/sextrans-2024-056202] [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: 04/08/2024] [Accepted: 06/17/2024] [Indexed: 07/06/2024] Open
Abstract
BackgroundART forgiveness is the ability of a regimen to maintain HIV-RNA suppression despite a documented imperfect adherence. We explored forgiveness of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF).MethodsIn this retrospective cohort study pharmacy drug refills were used to calculate the proportion of days covered (PDC) as a proxy of adherence. Forgiveness was defined as the possibility to achieve a selected HIV-RNA threshold by a given level of imperfect adherence. A logistic model was applied to verify the impact of baseline variables and adherence on the virologic outcomes.ResultsWe enrolled 420 adults. From them, 787 one-year time-periods were derived for a median cohort follow-up of 873 person/years.Most of them were males (73.1%); the most frequent risk factor for HIV infection was heterosexual contacts (49.5% of cases), followed by 22.5% MSM and 22.5% intravenous drug users. The median age of enrolled persons with HIV was 51 years (IQR 45-57 years); the median duration of HIV infection was 7.9 years (IQR 4-18 years) and the median nadir of CD4 cells was 277 cells/mcL (IQR 100-513 cells/mcL).Adherence showed a median of 0.97 (IQR 0.91-1.00), consequently only 17 time-periods (2.2%) in 17 different individuals (4.0%) showed HIV-RNA blood levels above 200 copies/ml.A PDC of 0.75 was sufficient to obtain in > 90% of cases the virologic outcome for both 200 copies/ml or 50 copies/ml. An adherence value of 0.85 obtained a positive response in virtually all subjects either for a cut-off of 50 or 200 copies/ml.ConclusionsLong-term success of ART needs effective, well tolerated, friendly regimens. Adherence remains a crucial determinant of long-term success, but suboptimal adherence levels are relatively common. Given this, an elevated forgiveness plays a relevant role to further improve long-term outcomes and should be considered a fundamental characteristic of any antiretroviral regimen. B/F/TAF has been proved to have all of these characteristics.
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Affiliation(s)
- Franco Maggiolo
- Infectious diseases' specialist Freelance, None, Fabro, Italy
| | - Lucia Taramasso
- Malattie Infettive, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Daniela Valenti
- Malattie Infettive, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Sabrina Blanchi
- Malattie Infettive, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Federica Centorrino
- Department of Health Sciences, Infectious Disease Clinic, Università degli Studi di Genova, Genova, Italy
| | - Laura Comi
- Malattie Infettive, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Antonio Di Biagio
- Department of Health Sciences, Infectious Disease Clinic, Università degli Studi di Genova, Genova, Italy
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Taguchi N, Piao Y, Rubino A, Lee K, Chen M, Harada K, Tanikawa T, Naito T. Relationship between adherence to bictegravir/emtricitabine/tenofovir alafenamide fumarate and clinical outcomes in people with HIV in Japan: a claims database analysis. Sci Rep 2024; 14:16785. [PMID: 39039129 PMCID: PMC11263482 DOI: 10.1038/s41598-024-67837-6] [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: 12/22/2023] [Accepted: 07/16/2024] [Indexed: 07/24/2024] Open
Abstract
A lack of adherence to long-term antiretroviral therapy may impact viral suppression. The current study examined the relationship between medication adherence and clinical outcomes in people with human immunodeficiency virus infection (PWH) receiving bictegravir, emtricitabine, and tenofovir alafenamide fumarate (B/F/TAF). A retrospective cohort study using two Japanese claims databases was conducted. Adherence was measured by the proportion of days covered (PDC). Patients were grouped into 3 PDC category and persistence was estimated by Kaplan-Meier method. Cox regression analysis was performed to investigate whether the PDC was associated with treatment discontinuation. Among 952 patients, 820 (86.1%), 95 (10.0%), and 37 (3.9%) patients were grouped into the PDC ≥ 90%, 80- < 90%, and < 80% groups, respectively. Across all PDC groups, more than 90% of patients who received B/F/TAF were receiving treatment at 1 year. There was no significant difference in the risk of discontinuation between the lower PDC groups (80- < 90% and < 80%) and the PDC ≥ 90% group (0.400 [0.096, 1.661]; 2.244 [0.663, 7.594], hazard ratio [95% confidence interval], respectively). A drug resistance test was implemented for 15 patients, none of whom discontinued B/F/TAF after the test. The results suggest that events that could cause discontinuation, such as virologic failure, were not associated with PDC.
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Affiliation(s)
| | - Yi Piao
- Gilead Sciences, K.K., Tokyo, Japan
| | | | | | | | | | | | - Toshio Naito
- Department of General Medicine, Faculty of Medicine, Juntendo University, Tokyo, Japan.
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Mariani C, Borgonovo F, Gerbi M, Rizzardini G, Capetti AF. Unexpected CD4 decay, hidden adherence gaps, resilience, and the need for long-acting therapy in a single HIV outpatients' cohort. AIDS Care 2024; 36:864-869. [PMID: 38170878 DOI: 10.1080/09540121.2023.2298768] [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: 05/17/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024]
Abstract
This single-centre, single-cohort study examines hidden non-adherence to antiretroviral therapy in a setting of persistent optimal viral suppression but concordant absolute and percent CD4 decay by >10% from the previous test. After the finding of important drug holidays in two virologically suppressed patients, between January 2021 and January 2022 all PLWH who fulfilled CD4 decay criteria were asked for how long therapy was interrupted, how many days before re-testing CD4 and HIV RNA was it resumed and the reason for interruption. Of 668 HIV-infected subjects, 61 fulfilled the pre-specified criteria for significant CD4 decay and 15 (2.25% of the total, 25% of the CD4 decay group) admitted long-lasting treatment interruptions, compensated by treatment resumption before the subsequent testing. Eleven treatment interruptions exceeded 28 days, and none was shorter than 15 days. CD4 recovery was worse at 6 months in non-adherent subjects (-0.5 vs + 16/mmc, p < 0.0001) and in non adherence vs immune decay time-related with COVID-19 (0 vs + 22/mmc, p < 0.0001). Reasons for interrupting treatment were travel, psychological, poverty-related, addiction and sentimental sphere problems. Long-acting regimens, with stringent control of precision in timely administration, may protect PLWH from damaging their health status and possibly transmit HIV.
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Affiliation(s)
- Chiara Mariani
- First Division of Infectious Diseases, Luigi Sacco Hospital, Milano, Italy
| | - Fabio Borgonovo
- First Division of Infectious Diseases, Luigi Sacco Hospital, Milano, Italy
| | - Martina Gerbi
- First Division of Infectious Diseases, Luigi Sacco Hospital, Milano, Italy
| | - Giuliano Rizzardini
- First Division of Infectious Diseases, Luigi Sacco Hospital, Milano, Italy
- School of Medicine, Faculty of Health Sciences, University of the Whitwatersrand, Johannesburg, South Africa
| | - Amedeo F Capetti
- First Division of Infectious Diseases, Luigi Sacco Hospital, Milano, Italy
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7
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Taramasso L, Andreoni M, Antinori A, Bandera A, Bonfanti P, Bonora S, Borderi M, Castagna A, Cattelan AM, Celesia BM, Cicalini S, Cingolani A, Cossarizza A, D'Arminio Monforte A, D'Ettorre G, Di Biagio A, Di Giambenedetto S, Di Perri G, Esposito V, Focà E, Gervasoni C, Gori A, Gianotti N, Guaraldi G, Gulminetti R, Lo Caputo S, Madeddu G, Maggi P, Marandola G, Marchetti GC, Mastroianni CM, Mussini C, Perno CF, Rizzardini G, Rusconi S, Santoro M, Sarmati L, Zazzi M, Maggiolo F. Pillars of long-term antiretroviral therapy success. Pharmacol Res 2023; 196:106898. [PMID: 37648103 DOI: 10.1016/j.phrs.2023.106898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/26/2023] [Accepted: 08/27/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Meeting the challenge of antiretroviral therapy (ART) whose efficacy can last a lifetime requires continuous updating of the virological, pharmacological, and quality of life outcomes to be pursued and a continuous review of literature data on the efficacy and tolerability of new drugs and therapeutic strategies. METHODS With the aim of identifying open questions and answers about the current controversies in modern ART, we adapted the Design Thinking methodology to the needs of the design phase of a scientific article, involving a team of experts in HIV care. RESULTS Five main pillars of treatment success were discussed: sustained virologic suppression over time; immunological recovery; pharmacological attributes; long-term tolerability and safety of ART; and people's satisfaction and quality of life. The definition of the outcomes to be achieved in each thematic area and the tools to achieve them were reviewed and discussed. CONCLUSIONS Long-term treatment success should be intended as a combination of HIV-RNA suppression, immune recovery, and high quality of life. To achieve this, the regimen should be well-tolerated, with high potency, genetic barrier, and forgiveness, and should be tailored by a person-centered perspective, based on individual needs, preferences, and therapeutic history.
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Affiliation(s)
- Lucia Taramasso
- IRCCS Ospedale Policlinico San Martino di Genova, Genova, Italy.
| | | | - Andrea Antinori
- Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani IRCCS, Roma, Italy
| | - Alessandra Bandera
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy
| | - Paolo Bonfanti
- Università degli Studi di Milano-Bicocca, Fondazione IRCCS San Gerardo dei Tintori - Monza, Monza, Italy
| | - Stefano Bonora
- Ospedale Amedeo di Savoia, Università degli Studi di Torino, Torino, Italy
| | - Marco Borderi
- Azienda Ospedaliero-Universitaria Policlinico S. Orsola-Malpighi, Bologna, Italy
| | | | | | | | - Stefania Cicalini
- Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani IRCCS, Roma, Italy
| | | | | | | | - Gabriella D'Ettorre
- Department of Public Health and Infectious Diseases AOU Policlinico Umberto I Sapienza, Rome, Italy
| | - Antonio Di Biagio
- Department of Health Sciences, Clinic of Infectious Diseases, University of Genoa, Genoa, Italy
| | | | - Giovanni Di Perri
- Ospedale Amedeo di Savoia, Università degli Studi di Torino, Torino, Italy
| | - Vincenzo Esposito
- UOC di Malattie infettive e Medicina di Genere P.O. Cotugno-A.O. dei Colli, Napoli, Italy
| | - Emanuele Focà
- Università degli Studi di Brescia e ASST Spedali Civili di Brescia, Brescia, Italy
| | | | - Andrea Gori
- Università degli Studi di Milano, Milano, Italy; ASST Fatebenefratelli Sacco, Ospedale Luigi Sacco, Milano, Italy
| | | | - Giovanni Guaraldi
- Azienda Ospedaliero-Universitaria Policlinico di Modena, Università degli Studi di Modena e Reggio Emilia, Modena, Italy
| | | | | | - Giordano Madeddu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy
| | - Paolo Maggi
- Università degli Studi della Campania Luigi Vanvitelli, AORN S. Anna e S. Sebastiano Caserta, Caserta, Italy
| | | | - Giulia Carla Marchetti
- Department of Health Sciences, Clinic of Infectious Diseases, University of Milan, ASST Santi Paolo e Carlo, Milan, Italy
| | | | - Cristina Mussini
- Azienda Ospedaliero-Universitaria Policlinico di Modena, Università degli Studi di Modena e Reggio Emilia, Modena, Italy
| | | | | | - Stefano Rusconi
- Ospedale Civile di Legnano ASST Ovest Milanese - Università degli Studi di Milano, Legnano, Italy
| | - Maria Santoro
- Università degli Studi di Roma "Tor Vergata", Roma, Italy
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8
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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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