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Hidalgo-Tenorio C, Sequera S, Vivancos MJ, Vinuesa D, Collado A, Santos IDL, Sorni P, Cabello-Clotet N, Montero M, Font CR, Terron A, Galindo MJ, Martinez O, Ryan P, Omar-Mohamed M, Albendín-Iglesias H, Javier R, Ruz MÁL, Romero A, Garcia-Vallecillos C. Bictegravir/emtricitabine/tenofovir alafenamide as first-line treatment in naïve HIV patients in a rapid-initiation model of care: BIC-NOW clinical trial. Int J Antimicrob Agents 2024; 63:107164. [PMID: 38574873 DOI: 10.1016/j.ijantimicag.2024.107164] [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: 01/22/2024] [Revised: 02/29/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
OBJECTIVE Multiple strategies have been utilised to reduce the incidence of HIV, including PrEP and rapid antiretroviral therapy initiation. The study objectives were to evaluate the efficacy, safety, satisfaction, treatment adherence, and system retention obtained with rapid initiation of bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) in naïve patients. METHODS This phase IV, multicenter, open-label, single-arm, 48-week clinical trial enrolled patients between January 2020 and June 2022. Adherence to treatment was evaluated with the SMAQ questionnaire and patient satisfaction with the EQ-5D. RESULTS Two hundred eight participants were enrolled with mean age of 35.6 years; 87.6% were males; mean CD4 count was 393.5 cells/uL (<200 cells/uL in 22.1%); viral load log was 5.6 (VL>100 000 cop/mL in 43.3%); 22.6% had AIDS, and 4.3% were coinfected with HBV. BIC/FTC/TAF was initiated on the day of their first visit to the HIV specialist in 98.6% of participants, and 9.6% were lost to follow-up. The efficacy at week 48 was 84.1 % by intention-to- treat (ITT), 94.6% by modified ITT, and 98.3% by per protocol analysis. The regimen was discontinued in two subjects (0.9%) during week 1 for grade 3 adverse events. Treatment adherence (weeks 4 [90%, IQR: 80-99%] vs. 48 [90%, IQR: 80-95%; P = 0.49]) and patient satisfaction (weeks 4 [90%, IQR: 80-99%] vs. 48 [90%, IQR: 80-95 P = 0.49]) rates were very high over the 48- week study period. CONCLUSIONS BIC/FTC/TAF is an appropriate option for rapid ART initiation in naïve HIV patients, offering high efficacy, safety, durability, treatment adherence, retention in the healthcare system, and patient satisfaction. Number Clinical Trial registration: NCT06177574.
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Affiliation(s)
- Carmen Hidalgo-Tenorio
- Unit of Infectious Diseases, Hospital Universitario Virgen de las Nieves, Granada, Spain.
| | - Sergio Sequera
- Unit of Infectious Diseases, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | | | - David Vinuesa
- Unit of Infectious Diseases, Hospital Universitario San Cecilio, Granada, Spain
| | - Antonio Collado
- Unit of Infectious Diseases, Hospital Universitario Torrecardenas, Almería, Spain
| | | | - Patricia Sorni
- Unit of Infectious Diseases, Hospital Son Llàtzer, Palma de Mallorca, Spain
| | - Noemi Cabello-Clotet
- Infectious Diseases Unit, Hospital Clínico San Carlos, Complutense University, Madrid, Spain
| | - Marta Montero
- Infectious Diseases Service, Hospital Universitario La Fe, Valencia, Spain
| | - Carlos Ramos Font
- Nuclear Medicine Service, Hospital Universitario Virgen de las Nieves Granada, Granada, Spain
| | - Alberto Terron
- Unit of Infectious Diseases, Hospital Universitario de Jerez, Cádiz, Spain
| | - Maria José Galindo
- Infectious Diseases Service, Hospital Universitario Clínico de Valencia, Spain
| | - Onofre Martinez
- Unit of Infectious Diseases, Hospital Universitario Santa Lucía, Cartagena, Spain
| | - Pablo Ryan
- Internal Medicine Service, Hospital Universitario Infanta Leonor, Madrid, Spain
| | | | - Helena Albendín-Iglesias
- Department of Internal Medicine, HIV and STI Unit, Hospital Universitario Virgen de la Arrixaca, IMIB, Murcia, Spain
| | - Rosario Javier
- Unit of Infectious Diseases, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | | | - Alberto Romero
- Unit of Infectious Diseases, Facultad de Medicina, Hospital Universitario Puerto Real, INIBICA, Universidad de Cadiz, Cádiz, Spain
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Stam AJ, Buchholtz NVEJ, Bierman WFW, van Crevel R, Hoepelman AIM, Claassen MAA, Ammerlaan HSM, van Welzen BJ, van Kasteren MEE, van Lelyveld SFL, de Jong D, Tesselaar K, van Luin M, Nijhuis M, Wensing AMJ, Team LOWERITS. Dynamics of Low-Level Viremia and Immune Activation after Switching to a Darunavir-Based Regimen. Viruses 2024; 16:182. [PMID: 38399959 PMCID: PMC10893305 DOI: 10.3390/v16020182] [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: 12/10/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/25/2024] Open
Abstract
There is an ongoing debate regarding whether low-level viremia (LLV), in particular persistent LLV, during HIV treatment with optimal adherence originates from low-level viral replication, viral production, or both. We performed an observational study in 30 individuals with LLV who switched to a boosted darunavir (DRV)-based therapy. In-depth virological analyses were used to characterize the viral population and the (activity) of the viral reservoir. Immune activation was examined using cell-bound and soluble markers. The primary outcome was defined as the effect on HIV-RNA and was categorized by responders (<50 cp/mL) or non-responders (>50 cp/mL). At week 24, 53% of the individuals were considered responders, 40% non-responders, and 7% could not be assigned. Sequencing showed no evolution or selection of drug resistance in the non-responders. Production of defective virus with mutations in either the protease (D25N) or RT active site contributed to persistent LLV in two individuals. We show that in about half of the study participants, the switch to a DRV-based regimen resulted in a viral response indicative of ongoing low-level viral replication as the cause of LLV before the switch. Our data confirm that in clinical management, high genetic barrier drugs like DRV are a safe choice, irrespective of the source of LLV.
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Affiliation(s)
- Arjen J. Stam
- Translational Virology Research Group, Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Infectious Diseases, Public Health Service Amsterdam, 1018 WT Amsterdam, The Netherlands
| | - Ninée V. E. J. Buchholtz
- Translational Virology Research Group, Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Wouter F. W. Bierman
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Reinout van Crevel
- Department of Internal Medicine, Radboud University Medical Center, 6525 GA Nijmegen, The Netherlands
| | - Andy I. M. Hoepelman
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Mark A. A. Claassen
- Department of Internal Medicine, Rijnstate Hospital, 6815 AD Arnhem, The Netherlands
| | - Heidi S. M. Ammerlaan
- Department of Internal Medicine, Catharina Hospital, 5623 EJ Eindhoven, The Netherlands
| | - Berend J. van Welzen
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | | | | | - Dorien de Jong
- Translational Virology Research Group, Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Kiki Tesselaar
- Department of Immunology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Matthijs van Luin
- Department of Clinical Pharmacy, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Monique Nijhuis
- Translational Virology Research Group, Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Annemarie M. J. Wensing
- Translational Virology Research Group, Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
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3
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Nasreddine R, Florence E, Yombi JC, Henrard S, Darcis G, Van Praet J, Vandekerckhove L, Allard SD, Demeester R, Messiaen P, Ausselet N, Delforge M, De Wit S. Efficacy, durability, and tolerability of bictegravir/emtricitabine/tenofovir alafenamide for the treatment of HIV in a real-world setting in Belgium. HIV Med 2023; 24:914-924. [PMID: 37038245 DOI: 10.1111/hiv.13493] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 03/20/2023] [Indexed: 04/12/2023]
Abstract
OBJECTIVES Our objective was to evaluate the efficacy, durability, and tolerability of bictegravir/emtricitabine/tenofovir alafenamide (BIC/FTC/TAF) in a real-world setting in Belgium. METHODS This was a retrospective, multicentre cohort study involving adult treatment-naïve (TN) and treatment-experienced (TE) people living with HIV receiving BIC/FTC/TAF between 1 January 2019 and 30 September 2020. The primary outcome was rate of virological suppression (plasma HIV-1 viral load <50 copies/mL; on-treatment analysis) at weeks 24 and 48. The main secondary outcomes included loss of virological suppression (LVS; two consecutive viral loads of >200 copies/mL after being virologically suppressed) by week 48 and analysis of resistance-associated mutations at time of LVS; tolerability of BIC/FTC/TAF over the 48-week study period; and change in weight and proportion of participants reporting a >10% weight gain at week 48. RESULTS Overall, 2001 participants were included. Through 48 weeks, overall rate of virological suppression was 93.5%, with similar results observed in the following subgroups: age ≥50 years (92.7%), women (92.8%), Black sub-Saharan African (91%), TN (94%), TE (93.2%), and non-suppressed at baseline (86.6%). LVS was observed in 0.7% (n = 14) of participants, with one participant developing resistance-associated mutations to nucleoside reverse transcriptase inhibitors (184 V) and integrase strand transfer inhibitors (263KR). Of the 131 (6.5%) treatment discontinuations, the most common reason was an adverse event (2.4%), with the most frequent being central nervous system/psychiatric (0.4%) and gastrointestinal (0.4%) toxicity. Median weight gain at week 48 was 2 kg (interquartile range -1 to 5), and a >10% weight increase was observed in 11.6% of participants. CONCLUSION In this large real-world cohort, BIC/FTC/TAF showed excellent virological efficacy in a diverse population of patients with HIV. Rare occurrence of emergent drug resistance was observed, and treatment was well tolerated.
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Affiliation(s)
| | | | | | - Sophie Henrard
- University Clinics of Brussels - Erasme Hospital, Brussels, Belgium
| | | | | | | | | | - Rémy Demeester
- University Hospital of Charleroi, Lodelinsart, Charleroi, Belgium
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4
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Rosen JG, Reynolds SJ, Galiwango RM, Kigozi G, Quinn TC, Ratmann O, Ndyanabo A, Nelson LJ, Nakigozi G, Nalugemwa M, Rucinski KB, Kennedy CE, Chang LW, Kagaayi J, Serwadda D, Grabowski MK. A moving target: impacts of lowering viral load suppression cutpoints on progress towards HIV epidemic control goals. AIDS 2023; 37:1486-1489. [PMID: 37395255 PMCID: PMC10328551 DOI: 10.1097/qad.0000000000003593] [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] [Indexed: 07/04/2023]
Abstract
Redefining viral load suppression (VLS) using lower cutpoints could impact progress towards the United Nations Programme on HIV/AIDS 95-95-95 targets. We assessed impacts of lowering the VLS cutpoint on achieving the 'third 95' in the Rakai Community Cohort Study. Population VLS would fall from 86% to 84% and 76%, respectively, after lowering VLS cutpoints from <1000 to <200 and <50 copies/ml. The fraction of viremic persons increased by 17% after lowering the VLS cutpoint from <1000 to <200 copies/ml.
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Affiliation(s)
- Joseph G. Rosen
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Steven J. Reynolds
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Thomas C. Quinn
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Oliver Ratmann
- Department of Mathematics, Imperial College, London, United Kingdom
| | | | - Lisa J. Nelson
- Centers for Disease Control and Prevention, Kampala, Uganda
| | | | | | - Katherine B. Rucinski
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Caitlin E. Kennedy
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Rakai Health Sciences Program, Entebbe, Uganda
| | - Larry W. Chang
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | | | - M. Kate Grabowski
- Rakai Health Sciences Program, Entebbe, Uganda
- Division of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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5
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Yuan D, Li M, Zhou Y, Shi L, Lu J, Fu G, Wang B. Influencing factors and adverse outcomes of different virologic rebound states in antiretroviral treated HIV/AIDS patients. J Virus Erad 2023; 9:100320. [PMID: 37008574 PMCID: PMC10063406 DOI: 10.1016/j.jve.2023.100320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/06/2023] Open
Abstract
Antiretroviral therapy (ART) aims to inhibit HIV replication, decrease CD4 T cell loss, and immune function recovery in order to reduce the morbidity and mortality associated with the infection. Treatment should also, improve quality of life and control HIV spread. However, incomplete viral suppression still occurs during ART. Viral suppression and virological failure (VF) thresholds vary between studies in terms of virological rebound (VR) states using different detection thresholds. Further understanding of influencing factors and adverse outcomes in various VR states should provide important guidance for HIV treatment.
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Affiliation(s)
- Defu Yuan
- Department of Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Mingma Li
- Department of Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Ying Zhou
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Lingen Shi
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jing Lu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Gengfeng Fu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
- Corresponding author. No.172, Jiangsu Road, Gulou District, Nanjing, China.
| | - Bei Wang
- Department of Epidemiology and Health Statistics, Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing, China
- Corresponding author. No.87, Dingjiaqiao Road, Gulou District, Nanjing, China.
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Nasreddine R, Yombi JC, Darcis G, Florence E, Allard SD, De Scheerder MA, Henrard S, Demeester R, Messiaen P, Ausselet N, Loeckx M, Delforge M, De Wit S. Efficacy, durability, and tolerability of dolutegravir/lamivudine and dolutegravir/rilpivirine for the treatment of HIV in a real-world setting in Belgium. HIV Med 2023; 24:267-278. [PMID: 35938381 DOI: 10.1111/hiv.13373] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 07/14/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES A paradigm shift from three-drug regimens to two-drug regimens (2DRs) is currently taking place in real-world clinical practice. This study aimed to describe the efficacy, durability, and tolerability of dolutegravir (DTG)/lamivudine (3TC) and DTG/rilpivirine (RPV) in a real-world setting. METHODS This was a retrospective, observational, multicentre (ten centres in Belgium) study involving adult treatment-naïve and treatment-experienced people living with HIV on DTG/3TC or DTG/RPV between 1 January 2019 and 30 September 2020. The primary endpoint was rate of virological suppression (VS; plasma HIV-1 viral load [VL] <50 copies/ml) using an on-treatment analysis. Main secondary endpoints included the proportion of people that experienced loss of VS (LVS; defined as two consecutive HIV-1 VLs of >200 copies/ml after initially achieving VS) and a resistance analysis at the time of LVS; rate, incidence, and reasons for discontinuation of treatment (stopping treatment or changing any component of the 2DR); and change in weight, along with the proportion of people reporting a >10% weight gain. Ordinal logistic regression analysis examined associations between baseline variables and >10% on-treatment weight gain. RESULTS Overall, 948 people were included, of whom 734 (77%) were on DTG/3TC and 214 (23%) were on DTG/RPV. Baseline characteristics included 54% aged ≥50 years, 31% female, 31% Black sub-Saharan African, 95% treatment-experienced, and 8% with HIV-1 VL ≥50 copies/ml. Through 48 weeks, the rate of VS for the overall cohort was 98.3% (99.1% with 3TC; 96.2% with RPV). LVS was observed in 0.5% (n = 5) of the overall population (n = 1 [3TC group], n = 4 [RPV group]). There were 40 treatment discontinuations (4.2%, n = 27 [3TC group]; n = 13 [RPV group]), corresponding to an incidence of 4.7 per 100 patient-years. The most common reason for discontinuation was an adverse event (1.4%), with neurotoxicity the most frequent (0.5%). Median on-treatment weight gain at week 48 was 1 kg (interquartile range [IQR] -1-3) overall, 1 kg (IQR -1-3) in the 3TC group, and 2 kg (IQR 0-4) in the RPV group. A >10% weight increase was observed in 6.3% of people. Regression analysis showed that being on a tenofovir disoproxil fumarate-based regimen prior to 2DR initiation was the only variable associated with a >10% increase in weight from baseline (odds ratio 3.48; 95% confidence interval 1.13-10.68; p = 0.038). CONCLUSION In this real-world analysis, the 2DRs analysed were effective, durable, and safe for those who were treatment-naive and treatment-experienced. A slight increase in weight was associated with these regimens.
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Affiliation(s)
| | | | | | | | | | | | - Sophie Henrard
- University Clinics of Brussels - Erasme Hospital, Brussels, Belgium
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7
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ROSEN JG, REYNOLDS SJ, GALIWANGO RM, KIGOZI G, QUINN TC, RATMANN O, NDYANABO A, NELSON LJ, NAKIGOZI G, NALUGEMWA M, RUCINSKI KB, KENNEDY CE, CHANG LW, KAGAAYI J, SERWADDA D, GRABOWSKI MK. A Moving Target: Impacts of Lowering Viral Load Suppression Cutpoints on Progress Towards HIV Epidemic Control Goals. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.01.19.23284804. [PMID: 36711720 PMCID: PMC9882556 DOI: 10.1101/2023.01.19.23284804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Redefining viral load suppression (VLS) using lower cutpoints could impact progress towards the UNAIDS 95-95-95 targets. We assessed impacts of lowering the VLS cutpoint on achieving the 95-95-95 VLS target in the Rakai Community Cohort Study. Population VLS fell from 86% to 84% and 76%, respectively, after lowering VLS cutpoints from <1,000 to <200 and <50 copies/mL. The fraction of viremic persons increased by 17% after lowering the VLS cutpoint from <1,000 to <200 copies/mL.
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Affiliation(s)
- Joseph G. ROSEN
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Corresponding author: Joseph G. Rosen, 615 N. Wolfe Street, E5031, Baltimore, MD 21202 T: +1 (305) 331-5568
- F: +1 (410) 614-7553
| | - Steven J. REYNOLDS
- Rakai Health Sciences Program, Entebbe, Uganda, Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Thomas C. QUINN
- Rakai Health Sciences Program, Entebbe, Uganda, Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Oliver RATMANN
- Department of Mathematics, Imperial College, London, United Kingdom
| | | | - Lisa J. NELSON
- Centers for Disease Control and Prevention, Kampala, Uganda
| | | | | | - Katherine B. RUCINSKI
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Caitlin E. KENNEDY
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA, Rakai Health Sciences Program, Entebbe, Uganda
| | - Larry W. CHANG
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA, Rakai Health Sciences Program, Entebbe, Uganda, Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | | | - M. Kate GRABOWSKI
- Rakai Health Sciences Program, Entebbe, Uganda, Division of Pathology, Johns Hopkins School of Medicine, Baltimore, MD, USA, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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8
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Lee CT, Chen HP, Lin HH, Ke MY, Wu PF. The influence of low-level viremia on CD4+ cell count in human immunodeficiency virus-infected patients. J Chin Med Assoc 2022; 85:1126-1130. [PMID: 36493400 DOI: 10.1097/jcma.0000000000000812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Following initiation of combined antiretroviral therapy, the majority of human immunodeficiency virus-infected patients experience immune reconstitution indicated by virologic suppression and an increase in peripheral CD4+ T-cell counts. Some patients may suffer from low-level viremia, which was reported to be significantly associated with acquired immunodeficiency syndrome cases, virologic failure, and death. We aimed to further investigate the influence of low-level viremia on CD4+ T-cell count. METHODS In our study, we included human immunodeficiency virus-seropositive patients on combined antiretroviral therapy, for at least 6 months, who received at least one assessment of human immunodeficiency virus plasma viral load and CD4+ cell count every 6 months, from January 2009 to January 2019. The copy-year viremia was determined by calculating the area under the curve of the plasma human immunodeficiency virus viral load. RESULTS When comparing patients with a mean CD4+ cell count <200 cells/μL, there was no significant difference between patients with a mean viral load <1000 copies/mL and patients with a mean viral load ≥1000 copies/mL (p = 0.219). Among those with a mean viral load <1000 copies/mL, a higher proportion of patients had a mean CD4+ cell count ≥500 cells/µL (p < 0.001). The mean CD4+ cell count of patients with copy-years viremia (log10) <4 (577.7, interquartile range 429.2-736.7) was significantly higher than that of patients with copy-years viremia (log10) ≥4 (443.3, interquartile range 319.0-558.4) (p < 0.001). In multivariate logistic regression analysis, we observed that malignancy without history, lower copy-years viremia, and high nadir CD4+ cell count were independent predictors of mean CD4+ cell count ≥500 cells/µL. CONCLUSION Human immunodeficiency virus-infected patients with a history of malignancy, high copy-year viremia, and lower nadir CD4+ cell counts should be monitored carefully in clinical settings.
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Affiliation(s)
- Cheng-Te Lee
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Hsin-Pai Chen
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Hsi-Hsun Lin
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC
- School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Meng-Yu Ke
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Ping-Feng Wu
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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9
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Li Q, Yu F, Song C, Zhao H, Xiao Q, Lao X, Yang S, Tang Y, Zhang F. HIV-1 Genotypic Resistance Testing Using Sanger and Next-Generation Sequencing in Adults with Low-Level Viremia in China. Infect Drug Resist 2022; 15:6711-6722. [PMID: 36438645 PMCID: PMC9697412 DOI: 10.2147/idr.s387215] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/27/2022] [Indexed: 08/08/2023] Open
Abstract
OBJECTIVE In this study, we aimed to determine drug-resistance mutations (DRMs) in HIV-1 patients with low-level viremia (LLV) and explored the performance of next-generation sequencing (NGS) in detecting HIV DRMs by using LLV samples. METHODS Overall, 80 samples with LLV were amplified and sequenced using a commercial Sanger sequencing (SS) genotyping kit. Furthermore, 51 samples successfully sequenced using SS were simultaneously subjected to NGS. Genotyping success rates of various viremia categories by two sequencing methods were calculated. Stanford HIV-1 drug-resistance database (HIVdb version 8.9) was used to analyze the DRMs. In the NGS assay, a threshold of 5% was considered for reporting low-frequency variants, and the DRMs detected using SS and NGS were compared. RESULTS The overall success rate of PR/RT regions was 88.1% (67/80) using SS and 86.3% (44/51) using NGS. Furthermore, a significant linear trend was noted between viral load and the genotyping success rate. A total of 38.8% (26/67) participants harbored at least one mutation, as revealed through SS. Moreover, the prevalence of DRMs in persistent LLV was significantly higher than that in intermittent LLV (62.1% vs. 21.1%; P < 0.05). A total of 69 DRMs were detected using the two sequencing methods at the threshold of 5%. Moreover, 10 DRMs missed by SS were detected using NGS, whereas 8 DRMs missed by NGS were detected by SS. CONCLUSION Our data suggested that the genotyping resistance testing is necessary to guide antiretroviral therapy optimization in LLV patients.
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Affiliation(s)
- Qun Li
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
| | - Fengting Yu
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
| | - Chuan Song
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, People’s Republic of China
| | - Hongxin Zhao
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
| | - Qing Xiao
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
| | - Xiaojie Lao
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
| | - Siyuan Yang
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
| | - Yunxia Tang
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
| | - Fujie Zhang
- Beijing Ditan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People’s Republic of China
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10
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Kolson DL. Developments in Neuroprotection for HIV-Associated Neurocognitive Disorders (HAND). Curr HIV/AIDS Rep 2022; 19:344-357. [PMID: 35867211 PMCID: PMC9305687 DOI: 10.1007/s11904-022-00612-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE OF REVIEW Reducing the risk of HIV-associated neurocognitive disorders (HAND) is an elusive treatment goal for people living with HIV. Combination antiretroviral therapy (cART) has reduced the prevalence of HIV-associated dementia, but milder, disabling HAND is an unmet challenge. As newer cART regimens that more consistently suppress central nervous system (CNS) HIV replication are developed, the testing of adjunctive neuroprotective therapies must accelerate. RECENT FINDINGS Successes in modifying cART regimens for CNS efficacy (penetrance, chemokine receptor targeting) and delivery (nanoformulations) in pilot studies suggest that improving cART neuroprotection and reducing HAND risk is achievable. Additionally, drugs currently used in neuroinflammatory, neuropsychiatric, and metabolic disorders show promise as adjuncts to cART, likely by broadly targeting neuroinflammation, oxidative stress, aerobic metabolism, and/or neurotransmitter metabolism. Adjunctive cognitive brain therapy and aerobic exercise may provide additional efficacy. Adjunctive neuroprotective therapies, including available FDA-approved drugs, cognitive therapy, and aerobic exercise combined with improved cART offer plausible strategies for optimizing the prevention and treatment of HAND.
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Affiliation(s)
- Dennis L Kolson
- Department of Neurology, University of Pennsylvania, Room 280C Clinical Research Building, 415 Curie Boulevard, Philadelphia, PA, 19104, USA.
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11
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Elvstam O, Malmborn K, Elén S, Marrone G, García F, Zazzi M, Sönnerborg A, Böhm M, Seguin-Devaux C, Björkman P. Virologic Failure Following Low-level Viremia and Viral Blips During Antiretroviral Therapy: Results From a European Multicenter Cohort. Clin Infect Dis 2022; 76:25-31. [PMID: 36100984 PMCID: PMC9825828 DOI: 10.1093/cid/ciac762] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/24/2022] [Accepted: 09/08/2022] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND It is unclear whether low-level viremia (LLV), defined as repeatedly detectable viral load (VL) of <200 copies/mL, and/or transient viremic episodes (blips) during antiretroviral therapy (ART), predict future virologic failure. We investigated the association between LLV, blips, and virologic failure (VF) in a multicenter European cohort. METHODS People with HIV-1 who started ART in 2005 or later were identified from the EuResist Integrated Database. We analyzed the incidence of VF (≥200 copies/mL) depending on viremia exposure, starting 12 months after ART initiation (grouped as suppression [≤50 copies/mL], blips [isolated VL of 51-999 copies/mL], and LLV [repeated VLs of 51-199 copies/mL]) using Cox proportional hazard models adjusted for age, sex, injecting drug use, pre-ART VL, CD4 count, HIV-1 subtype, type of ART, and treatment experience. We queried the database for drug-resistance mutations (DRM) related to episodes of LLV and VF and compared those with baseline resistance data. RESULTS During 81 837 person-years of follow-up, we observed 1424 events of VF in 22 523 participants. Both blips (adjusted subhazard ratio [aHR], 1.7; 95% confidence interval [CI], 1.3-2.2) and LLV (aHR, 2.2; 95% CI, 1.6-3.0) were associated with VF, compared with virologic suppression. These associations remained statistically significant in subanalyses restricted to people with VL <200 copies/mL and those starting ART 2014 or later. Among people with LLV and genotype data available within 90 days following LLV, 49/140 (35%) had at least 1 DRM. CONCLUSIONS Both blips and LLV during ART are associated with increased risk of subsequent VF.
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Affiliation(s)
- Olof Elvstam
- Correspondence: O. Elvstam, Department of Infectious Diseases, Växjö Central Hospital, 35185 Växjö, Sweden ()
| | - Kasper Malmborn
- Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Sixten Elén
- Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Gaetano Marrone
- Department of Infectious Diseases and Clinical Virology, Karolinska University Hospital, Stockholm, Sweden
| | - Federico García
- Servicio de Microbiología, Hospital Clinico Universitario San Cecilio, Instituto de Investigacíon Ibs. Granada, Ciber de Enfermedades Infecciosas, CIBERINFEC, Granada, Spain
| | - Maurizio Zazzi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Anders Sönnerborg
- Division of Infectious Diseases, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden,Department of Infecious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Michael Böhm
- Institute of Virology, Faculty of Medicine and University Hospital of Cologne, University of Cologne, Cologne, Germany
| | - Carole Seguin-Devaux
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch sur Alzette, Luxembourg
| | - Per Björkman
- Department of Translational Medicine, Lund University, Malmö, Sweden,Department of Infectious Diseases, Skåne University Hospital, Malmö, Sweden
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12
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Yuan D, Zhou Y, Shi L, Liu Y, Lu J, Chen J, Fu G, Wang B. HIV-1 Drug Resistance Profiles of Low-Level Viremia Patients and Factors Associated With the Treatment Effect of ART-Treated Patients: A Cross-Sectional Study in Jiangsu, China. Front Public Health 2022; 10:944990. [PMID: 35910928 PMCID: PMC9330384 DOI: 10.3389/fpubh.2022.944990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/21/2022] [Indexed: 12/05/2022] Open
Abstract
Objectives Evaluating the drug resistance (DR) profiles of LLV patients and the influencing factors of treatment effects in Jiangsu Province. Method The Pol gene (Reverse transcriptase and protease) was amplified and sequenced to identify the genotypes and DR profiles among LLV patients in 2021. Questionnaire survey was conducted among HIV/AIDS patients to investigate the potential influence factors of treatment effects. Results 242 Pol genes were amplified from 345 specimens, and ten genotypes were detected. The DR rate was 40.5%, with 66, 86, and 14 being resistant to NRTIs, NNRTIs, and PIs, respectively. Patients treated with the 2NRTIs+PIs regimen were detected with more DR; and drug resistance was less detected in married or cohabiting patients than unmarried patients. Non-smokers were less likely to develop LLV at follow-up than smokers; patients with stage II clinical stage at diagnosis and using 2NRTIs+PIs regimen were also more likely to develop LLV at follow-up. Conclusion Drug resistance profiles in LLV patients are severe and differ in treatment regimens and marital statuses. Meanwhile, smoking history, clinical stage, and treatment regimen may influence the therapeutic effect. It is necessary to include LLV people in the free drug resistance testing program.
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Affiliation(s)
- Defu Yuan
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Ying Zhou
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Lingen Shi
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Yangyang Liu
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Jing Lu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jianshuang Chen
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
| | - Gengfeng Fu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
- *Correspondence: Gengfeng Fu
| | - Bei Wang
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
- Bei Wang
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13
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Suboptimal HIV suppression is associated with progression of coronary artery stenosis: The Multicenter AIDS Cohort Study (MACS) longitudinal coronary CT angiography study. Atherosclerosis 2022; 353:33-40. [PMID: 35577614 PMCID: PMC9950757 DOI: 10.1016/j.atherosclerosis.2022.04.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 04/06/2022] [Accepted: 04/14/2022] [Indexed: 11/20/2022]
Abstract
BACKGROUND AND AIMS People living with HIV (HIV+) are surviving longer due to effective antiretroviral therapy. Cardiovascular disease is a leading cause of non-AIDS related clinical events. We determined HIV-related factors associated with coronary artery stenosis progression. METHODS We performed serial coronary CT angiography among HIV+ and HIV-uninfected (HIV-) men in the Multicenter AIDS Cohort Study. The median inter-scan interval was 4.5 years. Stenosis was graded as 0, 1-29, 30-49, 50-69 or ≥70%. Progression was defined as an increase ≥2 categories. Suppressed HIV infection was consistent viral loads <50 copies/mL allowing 1 "blip" <500 copies/mL, otherwise considered viremic. Multivariable Poisson regression analysis assessed adjusted associations between HIV serostatus and viremia with coronary stenosis progression. RESULTS The sample included 310 HIV+ (31% viremic) and 234 HIV- men. The median age was 53 years, 30% Black and 23% current smokers. Viremic men were 2.3 times more likely to develop coronary stenosis progression than HIV- men (adjusted RR 2.30; 95% CI, 1.32-4.00, p = 0.003), with no difference in progression between HIV+ suppressed and HIV- men (RR 1.10; 95% CI, 0.70-1.74, p = 0.67). There was a progressive increase in adjusted relative risk with greater viremia (p = 0.03). Men with >1 viral load >500 copies/ml demonstrated greatest stenosis progression (RR 3.01; 95% CI, 1.53-4.92, p = 0.001 compared with HIV- men). Suppressed HIV+ men with suboptimal antiretroviral adherence had greater stenosis progression (RR 1.91; 95% CI 1.12-3.24, p = 0.02) than HIV + suppressed men with optimal adherence. CONCLUSIONS Coronary artery stenosis progression was associated with suboptimal HIV RNA suppression and antiretroviral therapy adherence. Effective ongoing HIV virologic suppression and antiretroviral therapy adherence may mitigate risk for coronary disease events among people living with HIV.
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14
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Okere NE, Meta J, Maokola W, Martelli G, van Praag E, Naniche D, Gomez GB, Pozniak A, Rinke de Wit T, de Klerk J, Hermans S. Quality of care in a differentiated HIV service delivery intervention in Tanzania: A mixed-methods study. PLoS One 2022; 17:e0265307. [PMID: 35290989 PMCID: PMC8923447 DOI: 10.1371/journal.pone.0265307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 02/28/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Differentiated service delivery (DSD) offers benefits to people living with HIV (improved access, peer support), and the health system (clinic decongestion, efficient service delivery). ART clubs, 15-30 clients who usually meet within the community, are one of the most common DSD options. However, evidence about the quality of care (QoC) delivered in ART clubs is still limited. MATERIALS AND METHODS We conducted a concurrent triangulation mixed-methods study as part of the Test & Treat project in northwest Tanzania. We surveyed QoC among stable clients and health care workers (HCW) comparing between clinics and clubs. Using a Donabedian framework we structured the analysis into three levels of assessment: structure (staff, equipment, supplies, venue), processes (time-spent, screenings, information, HCW-attitude), and outcomes (viral load, CD4 count, retention, self-worth). RESULTS We surveyed 629 clients (40% in club) and conducted eight focus group discussions, while 24 HCW (25% in club) were surveyed and 22 individual interviews were conducted. Quantitative results revealed that in terms of structure, clubs fared better than clinics except for perceived adequacy of service delivery venue (94.4% vs 50.0%, p = 0.013). For processes, time spent receiving care was significantly more in clinics than clubs (119.9 vs 49.9 minutes). Regarding outcomes, retention was higher in the clubs (97.6% vs 100%), while the proportion of clients with recent viral load <50 copies/ml was higher in clinics (100% vs 94.4%). Qualitative results indicated that quality care was perceived similarly among clients in clinics and clubs but for different reasons. Clinics were generally perceived as places with expertise and clubs as efficient places with peer support and empathy. In describing QoC, HCW emphasized structure-related attributes while clients focused on processes. Outcomes-related themes such as improved client health status, self-worth, and confidentiality were similarly perceived across clients and HCW. CONCLUSION We found better structure and process of care in clubs than clinics with comparable outcomes. While QoC was perceived similarly in clinics and clubs, its meaning was understood differently between clients. DSD catered to the individual needs of clients, either technical care in the clinic or proximate and social care in the club. Our findings highlight that both clinic and DSD care are required as many elements of QoC were individually perceived.
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Affiliation(s)
- Nwanneka Ebelechukwu Okere
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- * E-mail:
| | - Judith Meta
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Werner Maokola
- Department of Strategic Information, National AIDS Control Programme, Dodoma, Tanzania
| | | | - Eric van Praag
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Denise Naniche
- ISGlobal -Barcelona Institute for Global Health, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Gabriela B. Gomez
- Department of Global Health and Development London School of Health and Tropical Medicine London, London, United Kingdom
| | - Anton Pozniak
- Chelsea and Westminster Hospital NHS Foundation Trust, and LSHTM London, London, United Kingdom
| | - Tobias Rinke de Wit
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Josien de Klerk
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Sabine Hermans
- Amsterdam Institute for Global Health and Development (AIGHD), Department of Global Health, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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15
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Bareng OT, Moyo S, Zahralban-Steele M, Maruapula D, Ditlhako T, Mokaleng B, Mokgethi P, Choga WT, Moraka NO, Pretorius-Holme M, Mine MO, Raizes E, Molebatsi K, Motswaledi MS, Gobe I, Mohammed T, Gaolathe T, Shapiro R, Mmalane M, Makhema JM, Lockman S, Essex M, Novitsky V, Gaseitsiwe S. HIV-1 drug resistance mutations among individuals with low-level viraemia while taking combination ART in Botswana. J Antimicrob Chemother 2022; 77:1385-1395. [PMID: 35229102 PMCID: PMC9633723 DOI: 10.1093/jac/dkac056] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/03/2022] [Indexed: 10/13/2023] Open
Abstract
OBJECTIVES To assess whether a single instance of low-level viraemia (LLV) is associated with the presence of drug resistance mutations (DRMs) and predicts subsequent virological failure (VF) in adults receiving ART in 30 communities participating in the Botswana Combination Prevention Project. METHODS A total of 6078 HIV-1 C pol sequences were generated and analysed using the Stanford HIV drug resistance database. LLV was defined as plasma VL = 51-999 copies/mL and VF was defined as plasma VL ≥ 1000 copies/mL. RESULTS Among 6078 people with HIV (PWH), 4443 (73%) were on ART for at least 6 months. Of the 332 persons on ART with VL > 50 copies/mL, 175 (4%) had VL ≥ 1000 copies/mL and 157 (4%) had LLV at baseline. The prevalence of any DRM was 57 (36%) and 78 (45%) in persons with LLV and VL ≥ 1000 copies/mL, respectively. Major DRMs were found in 31 (20%) with LLV and 53 (30%) with VL ≥ 1000 copies/mL (P = 0.04). Among the 135 PWH with at least one DRM, 17% had NRTI-, 35% NNRTI-, 6% PI- and 3% INSTI-associated mutations. Among the 3596 participants who were followed up, 1709 (48%) were on ART for ≥6 months at entry and had at least one subsequent VL measurement (median 29 months), 43 (3%) of whom had LLV. The OR of experiencing VF in persons with LLV at entry was 36-fold higher than in the virally suppressed group. CONCLUSIONS A single LLV measurement while on ART strongly predicted the risk of future VF, suggesting the use of VL > 50 copies/mL as an indication for more intensive adherence support with more frequent VL monitoring.
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Affiliation(s)
- Ontlametse T Bareng
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- School of Allied Health Professions, Faculty of Health Sciences, University of Botswana, Gaborone, Botswana
| | - Sikhulile Moyo
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Melissa Zahralban-Steele
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Dorcas Maruapula
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Biological Sciences, Faculty of Science, University of Botswana, Gaborone, Botswana
| | | | - Baitshepi Mokaleng
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- School of Allied Health Professions, Faculty of Health Sciences, University of Botswana, Gaborone, Botswana
| | | | - Wonderful T Choga
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Division of Human Genetics, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Natasha O Moraka
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Division of Medical Virology, Stellenbosch University, Cape Town, South Africa
| | - Molly Pretorius-Holme
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Madisa O Mine
- Botswana Ministry of Health and Wellness, Gaborone, Botswana
| | - Elliot Raizes
- U.S. Centers for Disease Control and Prevention, Atlanta, USA
| | - Kesaobaka Molebatsi
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Statistics, University of Botswana, Gaborone, Botswana
| | - Modisa S Motswaledi
- School of Allied Health Professions, Faculty of Health Sciences, University of Botswana, Gaborone, Botswana
| | - Irene Gobe
- School of Allied Health Professions, Faculty of Health Sciences, University of Botswana, Gaborone, Botswana
| | | | | | - Roger Shapiro
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Mompati Mmalane
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Joseph M Makhema
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Shahin Lockman
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
- Brigham and Women’s Hospital, Boston, MA, USA
| | - Max Essex
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
| | - Vlad Novitsky
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Simani Gaseitsiwe
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA
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16
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Dijkstra S, Hofstra LM, Mudrikova T, Wensing AMJ, Oomen PGA, Hoepelman AIM, van Welzen BJ. Lower Incidence of HIV-1 Blips Observed During Integrase Inhibitor-Based Combination Antiretroviral Therapy. J Acquir Immune Defic Syndr 2022; 89:575-582. [PMID: 34966148 DOI: 10.1097/qai.0000000000002898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/06/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND As the nature of viral blips remains unclear, their occurrence often leads to uncertainty. This study compares blip incidence rates during treatment with different combination antiretroviral therapy anchors. SETTING Retrospective cohort study in a tertiary hospital. METHODS All antiretroviral regimens between 2010 and 2020 containing 2 nucleos(-t)ide reverse transcriptase inhibitors and 1 anchor in virologically suppressed people living with HIV (PLWH) from our center were evaluated for the occurrence of blips [isolated viral loads (VLs) 50-499 copies/mL between measurements <50 copies/mL]. Factors associated with blips were identified using multivariable generalized estimating equation-based negative binomial models. The relationship between blips and either persistent low-level viremia (consecutive VLs ≥ 50 copies/mL not classified as failure) or virologic failure (consecutive VLs ≥ 200 or 1 VL ≥ 500 copies/mL) was also evaluated. RESULTS In total, 308 blips occurred during 3405 treatment courses in 1661 PLWH. Compared with a non-nucleoside reverse transcriptase inhibitor anchor, blip incidence was higher for protease inhibitors (incidence rate ratio 1.37; 95% confidence interval 1.05 to 1.78) and lower for integrase inhibitors (INSTIs) (incidence rate ratio 0.64; 95% confidence interval: 0.43 to 0.96). In addition, blips were associated with higher zenith VL, higher VL test frequency, and shorter time since antiretroviral therapy initiation. PLWH experiencing blips were more likely to demonstrate persistent low-level viremia but not virologic failure. Blips led to extra consultations and measurements. CONCLUSIONS INSTI-based regimens display a low number of blips. Although we found no correlation with virologic failure, the occurrence of blips led to an increased clinical burden. Further research is needed to elucidate the implications and underlying mechanisms of these findings.
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Affiliation(s)
- Suzan Dijkstra
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, Utrecht, the Netherlands
| | - L Marije Hofstra
- Department of Medical Microbiology, Virology, University Medical Center Utrecht, Utrecht, the Netherlands; and
| | - Tania Mudrikova
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Annemarie M J Wensing
- Department of Medical Microbiology, Virology, University Medical Center Utrecht, Utrecht, the Netherlands; and
- Ezinthsa, WITS RHI University of the Witwatersrand, Johannesburg, South-Africa
| | - Patrick G A Oomen
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Andy I M Hoepelman
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Berend J van Welzen
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht, Utrecht, the Netherlands
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17
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Bai R, Lv S, Hua W, Su B, Wang S, Shao Y, Li Z, Liu A, Sun L, Dai L. Factors associated with human immunodeficiency virus-1 low-level viremia and its impact on virological and immunological outcomes: A retrospective cohort study in Beijing, China. HIV Med 2022; 23 Suppl 1:72-83. [PMID: 35293102 DOI: 10.1111/hiv.13251] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2022] [Indexed: 01/29/2023]
Abstract
OBJECTIVES We evaluated the impact of low-level viremia (LLV) on virological failure and immune reconstitution among people living with human immunodeficiency virus type 1 (HIV-1) treated with different antiretroviral regimens in Beijing, China. METHODS Human immunodeficiency virus type 1-positive adults who were registered at an infectious disease hospital in Beijing between January 1, 2005 and January 1, 2020 were administered antiretroviral therapy (ART) and whose viral load and CD4 counts were monitored were included in this retrospective cohort study. Univariate and multivariate logistic regression analyses were performed to identify risk factors associated with LLV in patients on different ART regimens. Cox proportional hazard model was employed to analyze the virological suppression and immune reconstitution cumulative probability in patients with LLV during follow-up. RESULTS A total of 10 124 HIV-1-infected participants was included. LLV occurred in 723 (8.2%), 204 (10.9%), 133 (8.6%), and 53 (14.4%) patients on first-line ART, second-line ART, third-line ART, and simplified regimens, respectively. Virological failure occurred in 514 (5.8%), 289 (15.5%), 86 (5.5%), and 34 (9.2%) patients on first-line ART, second-line ART, third-line ART, and simplified regimens, respectively. Earlier enrollment, lower baseline CD4 count, and higher baseline viral load were risk factors associated with LLV. LLV was related to increased hazards of virological failure compared to viral suppression of ≤50 copies/ml for those on first-line ART. CONCLUSIONS The risk of virological failure and poor immune reconstitution increases when LLV occurs. Targeted viral load and CD4 count monitoring are recommended for people living with HIV-1 with LLV to improve health-related outcomes.
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Affiliation(s)
- Ruojing Bai
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Shiyun Lv
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Wei Hua
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Bin Su
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Sen Wang
- Institute of Infectious Diseases, Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Ying Shao
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Zaicun Li
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - An Liu
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Lijun Sun
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Lili Dai
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing, China
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18
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Hidalgo-Tenorio C, Pasquau J, Vinuesa D, Ferra S, Terrón A, SanJoaquín I, Payeras A, Martínez OJ, López-Ruz MÁ, Omar M, de la Torre-Lima J, López-Lirola A, Palomares J, Blanco JR, Montero M, García-Vallecillos C. DOLAVI Real-Life Study of Dolutegravir Plus Lamivudine in Naive HIV-1 Patients (48 Weeks). Viruses 2022; 14:524. [PMID: 35336931 PMCID: PMC8951045 DOI: 10.3390/v14030524] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 12/28/2022] Open
Abstract
Brief: Real-world data in naïve HIV-1 patients demonstrate that dolutegravir plus lamivudine in a multiple tablet regimen is effective, safe, and satisfactory; it causes moderately increasing weight and abdominal circumference and is administrable on a test-and-treat strategy. Background: Our objectives were to determine the real-life effectiveness and safety of DT with dolutegravir (50 mg/QD) plus lamivudine (300 mg/QD) in a multiple-tablet regimen (MTR) in naïve PLHIV followed up for 48 weeks and to evaluate the compliance and satisfaction of patients. Material and methods: An open, single-arm, multicenter, non-randomized clinical trial from May 2019 through September 2020 with a 48-week follow-up. Results: The study included 88 PLHIV patients (87.5% male) with a mean age of 35.9 years; 76.1% were MSM patients. The mean baseline CD4 was 516.4 cells/uL, with a viral load (VL) of 4.49 log10, and 11.4% were in the AIDS stage. DT started within 7 days of first specialist consultation in all patients and the same day in 84.1%; 3.4% had baseline resistance mutations (K103N, V106I + E138A, and V108I); 12.5% were lost to follow-up. At week 48, 86.3% had VL < 50 cop/uL by intention-to-treat analysis and 98.7% by per-protocol (PP) analysis. Virological failure (VF) was recorded in 1.1%, with no resistance mutation. One blip was detected in 5.2% without VF. Three reported anxiety, dizziness, and cephalgia, respectively, at week 4 and one reported insomnia at week 24; none reported adverse events at week 48. The mean weight was 4 kg higher at 48 weeks (p = 0.0001) and abdominal circumference 3 cm larger at 24 weeks (p = 0.022). No forgetfulness occurred in 98.7% of patients. Patient satisfaction was 90/100 at 4, 24, and 48 weeks. Conclusion: Real-world data demonstrate that dolutegravir plus lamivudine in MTR is effective, safe, and satisfactory, moderately increasing weight and abdominal circumference and administrable on a test-and-treat strategy.
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Affiliation(s)
- Carmen Hidalgo-Tenorio
- Unit of Infectious Diseases, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (J.P.); (M.Á.L.-R.); (C.G.-V.)
| | - Juan Pasquau
- Unit of Infectious Diseases, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (J.P.); (M.Á.L.-R.); (C.G.-V.)
| | - David Vinuesa
- Unit of Infectious Diseases, University Hospital San Cecilio, 18016 Granada, Spain;
| | - Sergio Ferra
- Unit of Infectious Diseases, Torrecárdenas University Hospital, 04009 Almería, Spain;
| | - Alberto Terrón
- Unit of Infectious Diseases, Hospital de Jerez, 11407 Jerez de la Frontera, Spain;
| | - Isabel SanJoaquín
- Unit of Infectious Diseases, Hospital Lozano Blesa, 50009 Zaragoza, Spain;
| | - Antoni Payeras
- Internal Medicine Service, Hospital Son Llatzer, 07198 Palma, Spain;
| | | | - Miguel Ángel López-Ruz
- Unit of Infectious Diseases, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (J.P.); (M.Á.L.-R.); (C.G.-V.)
| | - Mohamed Omar
- Unit of Infectious Diseases, Hospital Complex of Jaén, 23007 Jaén, Spain;
| | | | - Ana López-Lirola
- Unit of Infectious Diseases, University Hospital Canarias, 38320 San Cristóbal de La Laguna, Spain;
| | - Jesús Palomares
- Internal Medicine Service, Hospital Santa Ana, 18600 Motril, Spain;
| | - José Ramón Blanco
- Unit of Infectious Diseases, Hospital San Pedro, 26006 Logroño, Spain;
| | - Marta Montero
- Service of Infectious Diseases, Hospital de La Fe, 46026 València, Spain;
| | - Coral García-Vallecillos
- Unit of Infectious Diseases, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (J.P.); (M.Á.L.-R.); (C.G.-V.)
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19
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Álvarez H, Rava M, Martínez C, Portilla J, Peraire J, Rivero A, Cervero M, Mariño A, Poveda E, Llibre JM. Predictors of low-level HIV viraemia and virological failure in the era of integrase inhibitors: A Spanish nationwide cohort. HIV Med 2022; 23:825-836. [PMID: 35234328 DOI: 10.1111/hiv.13265] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To pinpoint factors associated with low-level viraemia (LLV) and virological failure (VF) in people living with HIV in the era of high-efficacy antiretroviral treatment (ART) and widespread use of integrase strand transfer inhibitor (INSTIs)-based ART. METHODS We included adults aged > 18 years starting their first ART between 2015 and 2018 in the Spanish HIV/AIDS Research Network National Cohort (CoRIS). Low-level viraemia was defined as plasma viral load (pVL) of 50-199 copies/mL at weeks 48 and 72 and VF was defined as pVL ≥ 50 copies/mL at week 48 and pVL ≥ 200 copies/mL at week 72. Multivariable logistic regression models assessed the impact on LLV and VF of baseline CD4 T-cell count, CD4/CD8 T-cell ratio and pVL, initial ART classes, age at ART initiation, time between HIV diagnosis and ART initiation, gender and transmission route. RESULTS Out of 4186 participants, 3120 (76.0%) started INSTIs, 455 (11.1%) started boosted protease inhibitors (bPIs) and 443 (10.8%) started nonnucleoside reverse transcriptase inhibitors (NNRTIs), either of them with two nucleos(t)ide reverse transcriptase inhibitors (NRTIs). Low-level viraemia was met in 2.5% of participants and VF in 4.3%. There were no significant differences throughout the years for both virological outcomes. Baseline HIV-1 RNA > 5 log10 copies/mL was the only consistent predictor of higher risk of LLV [adjusted odds ratio (aOR) = 9.8, 95% confidence interval (CI): 2.0-48.3] and VF (aOR = 5.4, 95% CI: 1.9-15.1), even in participants treated with INSTIs. CONCLUSIONS The rates of LLV and VF were low but remained steady throughout the years. Baseline HIV-1 RNA > 5 log10 copies/mL showed a persistent association with LLV and VF even in participants receiving INSTIs.
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Affiliation(s)
- Hortensia Álvarez
- Infectious Diseases Unit, Department of Internal Medicine, University Hospital of Ferrol, A Coruña, Spain
| | - Marta Rava
- AIDS Research Network Cohort (CoRIS), National Center of Epidemiology (CNE), Health Institute Carlos III (ISCIII), Madrid, Spain
| | - Cristina Martínez
- Methodology and Statistics Unit, Galicia Sur Health Research Institute (IIS Galicia Sur)-Complexo Hospitalario Universitario de Vigo, SERGAS-UVigo, Vigo, Spain
| | | | - Joaquim Peraire
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | | | - Miguel Cervero
- Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain
| | - Ana Mariño
- Infectious Diseases Unit, Department of Internal Medicine, University Hospital of Ferrol, A Coruña, Spain
| | - Eva Poveda
- Group of Virology and Pathogenesis, Galicia Sur Health Research Institute (IIS Galicia Sur)-Complexo Hospitalario Universitario de Vigo, SERGAS-UVigo, Vigo, Spain
| | - Josep M Llibre
- Infectious Diseases and "Fight AIDS and Infectious Diseases" Foundation, University Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain
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20
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Crespo-Bermejo C, de Arellano ER, Lara-Aguilar V, Valle-Millares D, Gómez-Lus ML, Madrid R, Martín-Carbonero L, Briz V. Persistent low-Level viremia in persons living with HIV undertreatment: An unresolved status. Virulence 2021; 12:2919-2931. [PMID: 34874239 PMCID: PMC8654475 DOI: 10.1080/21505594.2021.2004743] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Antiretroviral therapy (ART) allows suppressed viremia to reach less than 50 copies/mL in most treated persons living with HIV (PLWH). However, the existence of PLWH that show events of persistent low-level viremia (pLLV) between 50 and 1000 copies/mL and with different virological consequences have been observed. PLLV has been associated with higher virological failure (VF), viral genotype resistance, adherence difficulties and AIDS events. Moreover, some reports show that pLLV status can lead to residual immune activation and inflammation, with an increased risk of immunovirological failure and a pro-inflammatory cytokine level which can lead to a higher occurrence of non-AIDS defining events (NADEs) and other adverse clinical outcomes. Until now, however, published data have shown controversial results that hinder understanding of the true cause(s) and origin(s) of this phenomenon. Molecular mechanisms related to viral reservoir size and clonal expansion have been suggested as the possible origin of pLLV. This review aims to assess recent findings to provide a global view of the role of pLLV in PLWH and the impact this status may cause on the clinical progression of these patients.
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Affiliation(s)
- Celia Crespo-Bermejo
- Laboratory of Reference and Research on Viral Hepatitis, National Center of Microbiology, Institute of Health Carlos Iii, Majadahonda, Madrid, Spain
| | - Eva Ramírez de Arellano
- Laboratory of Reference and Research on Viral Hepatitis, National Center of Microbiology, Institute of Health Carlos Iii, Majadahonda, Madrid, Spain
| | - Violeta Lara-Aguilar
- Laboratory of Reference and Research on Viral Hepatitis, National Center of Microbiology, Institute of Health Carlos Iii, Majadahonda, Madrid, Spain
| | - Daniel Valle-Millares
- Laboratory of Reference and Research on Viral Hepatitis, National Center of Microbiology, Institute of Health Carlos Iii, Majadahonda, Madrid, Spain
| | - Mª Luisa Gómez-Lus
- Departamento de Medicina- Área de Microbiología. Facultad de Medicina. Universidad Complutense, Madrid, Spain
| | - Ricardo Madrid
- Parque Científico de Madrid, Campus de Cantoblanco, Madrid, Spain.,Department of Genetics, Physiology and Microbiology. Faculty of Biology, Complutense University of Madrid, Madrid, Spain
| | - Luz Martín-Carbonero
- Unidad de Vih. Servicio de Medicina Interna. Hospital Universitario La Paz. Instituto de Investigación Sanitaria Hospital de La Paz (Idipaz), Madrid, Spain
| | - Verónica Briz
- Laboratory of Reference and Research on Viral Hepatitis, National Center of Microbiology, Institute of Health Carlos Iii, Majadahonda, Madrid, Spain
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21
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Li Q, Chen M, Zhao H, Yu F, Yan L, Xiao J, Gao G, Yang D, Zhang F. Persistent Low-Level Viremia is an Independent Risk Factor for Virologic Failure: A Retrospective Cohort Study in China. Infect Drug Resist 2021; 14:4529-4537. [PMID: 34754201 PMCID: PMC8572020 DOI: 10.2147/idr.s332924] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/09/2021] [Indexed: 12/11/2022] Open
Abstract
Background Whether intermittent low-level viremia (iLLV/blip) or persistent low-level viremia (pLLV) increases the risk of virologic failure (VF) in HIV-1 patients is controversial. The objective of this study was to investigate the incidence of blip/pLLV and the association between blip/pLLV and VF in a Chinese antiretroviral therapy cohort. Methods HIV-1 patients who underwent antiretroviral therapy (ART) from 2005 to 2018 and had at least two viral load (VL) measurements after a minimum of 6 months ART treatment were included. VF was defined as one or more VL measurements of ≥1000 copies/mL. Blip was described as an isolated VL measurement between 50 and 999 copies/mL, and pLLV was defined as two or more consecutive VL measurements between 50 and 999 copies/mL. Blip and pLLV were categorized separately into three groups: 50–200, 201–400 and 401–999 copies/mL. The Cox proportional hazard model was used to explore the association between blip/pLLV and VF. Results In total, 8098 participants were enrolled in this long-term cohort study. A 94.3% of the participants were male and among which 77.3% were infected through homosexual transmission. Blip occurred in 4.0% (325/8098) of the patients with an incidence of 0.73 per 100 person-years (/100 PYS) of follow-up (95% CI: 0.71–0.76), whereas pLLV occurred in 1.3% of the patients (102/8098) with an incidence of 0.23/100 PYS of follow-up (95% CI: 0.21–0.25). All the three categories of pLLV were associated with VF: pLLV 50–200 [aHR: 3.82 (1.95–7.47)], pLLV 201–400 [aHR: 5.36 (2.35–12.22)] and pLLV 401–999 [aHR: 13.51 (8.28–22.02)]. However, blip is not significantly associated with VF in any category. Conclusion Our study suggested that patients with pLLV had an increased risk of subsequent VF. Therefore, if pLLV occurs in patients, monitoring and corresponding measurements must be strengthened to avoid the subsequent VF.
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Affiliation(s)
- Qun Li
- Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China
| | - Meiling Chen
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China.,The Medical Statistic Department, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Hongxin Zhao
- Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China
| | - Fengting Yu
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China.,Laboratory of Infectious Diseases Center, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Liting Yan
- Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China
| | - Jiang Xiao
- Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China
| | - Guiju Gao
- Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China
| | - Di Yang
- Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China
| | - Fujie Zhang
- Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Clinical Center for HIV/AIDS, Capital Medical University, Beijing, People's Republic of China
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22
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Antela A, Rivero A, Llibre JM, Moreno S. Redefining therapeutic success in HIV patients: an expert view. J Antimicrob Chemother 2021; 76:2501-2518. [PMID: 34077524 PMCID: PMC8446931 DOI: 10.1093/jac/dkab168] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Thanks to advances in the field over the years, HIV/AIDS has now become a manageable chronic condition. Nevertheless, a new set of HIV-associated complications has emerged, related in part to the accelerated ageing observed in people living with HIV/AIDS, the cumulative toxicities from exposure to antiretroviral drugs over decades and emerging comorbidities. As a result, HIV/AIDS can still have a negative impact on patients' quality of life (QoL). In this scenario, it is reasonable to believe that the concept of therapeutic success, traditionally associated with CD4 cell count restoration and HIV RNA plasma viral load suppression and the absence of drug resistances, needs to be redefined to include other factors that reach beyond antiretroviral efficacy. With this in mind, a group of experts initiated and coordinated the RET Project, and this group, using the available evidence and their clinical experience in the field, has proposed new criteria to redefine treatment success in HIV, arranged into five main concepts: rapid initiation, efficacy, simplicity, safety, and QoL. An extensive review of the literature was performed for each category, and results were discussed by a total of 32 clinicians with experience in HIV/AIDS (4 coordinators + 28 additional experts). This article summarizes the conclusions of these experts and presents the most updated overview on the five topics, along with a discussion of the experts' main concerns, conclusions and/or recommendations on the most controversial issues.
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Affiliation(s)
- Antonio Antela
- Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, Spain
| | - Antonio Rivero
- Hospital Universitario Reina Sofía, Cordoba, Spain
- Universidad de Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba, Córdoba, Spain
| | - Josep M Llibre
- Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Santiago Moreno
- Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, Madrid, Spain
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23
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Crowell TA, Pinyakorn S, Sacdalan C, Kroon E, Colby DJ, Puttamaswin S, Ubolyam S, Trichavaroj R, Butterworth O, Turk E, Mccullough C, Chomont N, de Souza M, Robb ML, Phanuphak N, Ananworanich J. Viral Blips After Treatment Initiation During Acute Human Immunodeficiency Virus Infection. Clin Infect Dis 2021; 70:2706-2709. [PMID: 31550044 PMCID: PMC7286371 DOI: 10.1093/cid/ciz936] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/21/2019] [Indexed: 12/19/2022] Open
Abstract
Transient viral blips ≥20 copies/mL were observed in 16.9% of acutely treated adults with HIV. Blip incidence increased from 0.0 (95% CI, 0.0-2.9)/100 person-years after ART in Fiebig I to 15.9 (7.6-29.2) in Fiebig V. Increasing viral load and Fiebig stage at ART initiation were independently predictive of blips.
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Affiliation(s)
- Trevor A Crowell
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Suteeraporn Pinyakorn
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Carlo Sacdalan
- South East Asia Research Collaboration in HIV, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - Eugène Kroon
- South East Asia Research Collaboration in HIV, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - Donn J Colby
- South East Asia Research Collaboration in HIV, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - Suwanna Puttamaswin
- South East Asia Research Collaboration in HIV, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - Sasiwimol Ubolyam
- The HIV Netherlands Australia Thailand Research Collaboration, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - Rapee Trichavaroj
- Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Oratai Butterworth
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Ellen Turk
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Corinne Mccullough
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Nicolas Chomont
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal and Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montreal, Quebec, Canada
| | - Mark de Souza
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA.,South East Asia Research Collaboration in HIV, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - Merlin L Robb
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA
| | - Nittaya Phanuphak
- South East Asia Research Collaboration in HIV, Thai Red Cross AIDS Research Centre, Bangkok, Thailand
| | - Jintanat Ananworanich
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, USA.,South East Asia Research Collaboration in HIV, Thai Red Cross AIDS Research Centre, Bangkok, Thailand.,Department of Global Health, University of Amsterdam, Amsterdam, The Netherlands
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24
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Joya C, Won SH, Schofield C, Lalani T, Maves RC, Kronmann K, Deiss R, Okulicz J, Agan BK, Ganesan A. Persistent Low-level Viremia While on Antiretroviral Therapy Is an Independent Risk Factor for Virologic Failure. Clin Infect Dis 2020; 69:2145-2152. [PMID: 30785191 DOI: 10.1093/cid/ciz129] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 02/13/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Whether persistent low-level viremia (pLLV) predicts virologic failure (VF) is unclear. We used data from the US Military HIV Natural History Study (NHS), to examine the association of pLLV and VF. METHODS NHS subjects who initiated combination antiretroviral therapy (ART) after 1996 were included if they had 2 or more VLs measured with a lower limit of detection of ≤50 copies/mL. VF was defined as a confirmed VL ≥200 copies/mL or any VL >1000 copies/mL. Participants were categorized into mutually exclusive virologic categories: intermittent LLV (iLLV) (VL of 50-199 copies/mL on <25% of measurements), pLLV (VL of 50-199 copies/mL on ≥25% of measurements), high-level viremia (hLV) (VL of 200-1000 copies/mL), and continuous suppression (all VL <50 copies/mL). Cox proportional hazards models were used to evaluate the association between VF and LLV; hazard ratios and 95% confidence interval (CI) are presented. RESULTS Two thousand six subjects (median age 29.2 years, 93% male, 41% black) were included; 383 subjects (19%) experienced VF. After adjusting for demographics, VL, CD4 counts, ART regimen, prior use of mono or dual antiretrovirals, and time to ART start, pLLV (3.46 [2.42-4.93]), and hLV (2.29 [1.78-2.96]) were associated with VF. Other factors associated with VF include black ethnicity (1.33 [1.06-1.68]) and antiretroviral use prior to ART (1.79 [1.34-2.38]). Older age at ART initiation (0.71 [0.61-0.82]) and non-nucleoside reverse transcriptase inhibitor (0.68 [0.51-0.90]) or integrase strand transfer inhibitor use (0.26 [0.13-0.53]) were protective. CONCLUSION Our data add to the body of evidence that suggests persistent LLV is associated with deleterious virologic consequences.
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Affiliation(s)
- Christie Joya
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Division of Infectious Diseases, Walter Reed National Military Medical Center, Bethesda, Maryland
| | - Seung Hyun Won
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
| | - Christina Schofield
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Division of Infectious Diseases, Madigan Army Medical Center, Tacoma, Washington
| | - Tahaniyat Lalani
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland.,Division of Infectious Diseases, Naval Medical Center Portsmouth, Virginia
| | - Ryan C Maves
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Division of Infectious Diseases, Naval Medical Center San Diego, California
| | - Karl Kronmann
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Division of Infectious Diseases, Naval Medical Center Portsmouth, Virginia
| | - Robert Deiss
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Jason Okulicz
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Infectious Disease Service, San Antonio Military Medical Center, Texas
| | - Brian K Agan
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
| | - Anuradha Ganesan
- Infectious Disease Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Division of Infectious Diseases, Walter Reed National Military Medical Center, Bethesda, Maryland.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland
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25
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Esber A, Polyak C, Kiweewa F, Maswai J, Owuoth J, Maganga L, Adamu Y, Hickey PW, Ake JA, Crowell TA. Persistent Low-level Viremia Predicts Subsequent Virologic Failure: Is It Time to Change the Third 90? Clin Infect Dis 2020; 69:805-812. [PMID: 30462188 DOI: 10.1093/cid/ciy989] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 11/15/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND World Health Organization (WHO) guidelines identify human immunodeficiency virus (HIV) viral load <1000 copies/mL as the goal of antiretroviral therapy (ART). However, the clinical implications of viremia below this threshold are unclear in the African context. We examined factors associated with persistent low-level viremia (pLLV) and quantified the risk of subsequent virologic. METHODS The African Cohort Study enrolled HIV-infected adults at clinics in Uganda, Kenya, Tanzania, and Nigeria, with assessments every 6 months. We evaluated participants prescribed ART for at least 6 months without virologic failure for pLLV. We used multinomial logistic regression to evaluate associations between prespecified factors of interest and 3 levels of pLLV (<200, 200-499, and 500-999 copies/mL). We used Anderson-Gill extended Cox proportional hazards to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for viremia category associations with time to failure. RESULTS We included 1511 participants with 4382 person-years of follow-up. PLLV <200 copies/mL was observed at 20% of visits while 2% of visits had pLLV 200-499 and 500-999 copies/mL each, with substantial variation by site. Protease inhibitor-containing ART was associated with increased risk of pLLV. Compared to undetectable viral load, pLLV ≥200 copies/mL doubled the risk of developing virologic failure (pLLV 200-499: HR, 1.81 [95% CI, 1.08-3.02]); pLLV 500-999: HR, 2.36 [95% CI, 1.52-3.67]). CONCLUSIONS Participants with pLLV ≥200 copies/mL were at increased risk of subsequent virologic failure. Optimized HIV care in this setting should target viral suppression <200 copies/mL.
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Affiliation(s)
- Allahna Esber
- US Military Human Immunodeficiency Virus Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation (HJF) for the Advancement of Military Medicine, Bethesda, Maryland
| | - Christina Polyak
- US Military Human Immunodeficiency Virus Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation (HJF) for the Advancement of Military Medicine, Bethesda, Maryland
| | | | | | - John Owuoth
- HJF Medical Research International, Kisumu, Kenya
| | | | - Yakubu Adamu
- US Army Medical Research Directorate-Africa/Nigeria, Abuja
| | - Patrick W Hickey
- Department of Pediatrics, Uniformed Services University, Bethesda, Maryland
| | - Julie A Ake
- US Military Human Immunodeficiency Virus Research Program, Walter Reed Army Institute of Research, Silver Spring
| | - Trevor A Crowell
- US Military Human Immunodeficiency Virus Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation (HJF) for the Advancement of Military Medicine, Bethesda, Maryland
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Sudjaritruk T, Teeraananchai S, Kariminia A, Lapphra K, Kumarasamy N, Fong MS, Hansudewechakul R, Bunupuradah T, Ly PS, Nallusamy RA, Sohn AH, Sirisanthana V. Impact of low-level viraemia on virological failure among Asian children with perinatally acquired HIV on first-line combination antiretroviral treatment: a multicentre, retrospective cohort study. J Int AIDS Soc 2020; 23:e25550. [PMID: 32628816 PMCID: PMC7338042 DOI: 10.1002/jia2.25550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 05/13/2020] [Accepted: 05/28/2020] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION The clinical relevance of low-level viraemia (LLV) and virological outcomes among children living with HIV (CLHIV) remains controversial. This study aimed to determine the impact of LLV on virological failure (VF) among Asian CLHIV on first-line combination antiretroviral therapy (cART). METHODS CLHIV aged <18 years, who were on first-line cART for ≥12 months, and had virological suppression (two consecutive plasma viral load [pVL] <50 copies/mL) were included. Those who started treatment with mono/dual antiretroviral therapy, had a history of treatment interruption >14 days, or received treatment and care at sites with a pVL lower limit of detection >50 copies/mL were excluded. LLV was defined as a pVL 50 to 1000 copies/mL, and VF as a single pVL >1000 copies/mL. Baseline was the time of the second pVL < 50 copies/mL. Cox proportional hazards models were performed to assess the association between LLV and VF. RESULTS From January 2008 to September 2016, 508 CLHIV (55% female) were eligible for the study. At baseline, the median age was 9.6 (IQR: 7.0 to 12.3) years, cART duration was 1.4 (IQR: 1.3 to 1.8) years, 97% of CLHIV were on non-nucleoside reverse transcriptase inhibitor-based regimens, and the median CD4 was 25% (IQR: 20% to 30%). Over a median follow-up time of 6.0 (IQR: 3.1 to 8.9) years from baseline, 86 CLHIV (17%) had ever experienced LLV, of whom 32 (37%) had multiple LLV episodes. Female sex, living in Malaysia (compared to Cambodia), having family members other than biological parents/grandparents as a primary caregiver, and baseline CD4 < 25% increased risk of LLV. Overall, 115 children (23%) developed VF, corresponding to a rate of 4.0 (95%CI: 3.4 to 4.9) per 100 person-years of follow-up (PYFU). VF was greater among children who had ever experienced LLV compared with those who maintained virological suppression throughout the study period (8.9 vs. 3.3 per 100 PYFU; p < 0.001). In multivariable analyses, ever experiencing LLV was associated with increased risk of subsequent VF (adjusted hazard ratio: 3.01; 95%CI: 1.97 to 4.60). CONCLUSIONS LLV increased the risk of subsequent VF among Asian CLHIV who had previously been suppressed on first-line cART. Adherence interventions and additional targeted pVL monitoring may be warranted among children with LLV to facilitate early detection of VF.
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Affiliation(s)
- Tavitiya Sudjaritruk
- Department of Pediatrics, Faculty of MedicineChiang Mai UniversityChiang MaiThailand
- Research Institute for Health SciencesChiang Mai UniversityChiang MaiThailand
| | - Sirinya Teeraananchai
- The HIV Netherlands Australia Thailand Research CollaborationThe Thai Red Cross AIDS Research CentreBangkokThailand
- Department of Statistics, Faculty of ScienceKasetsart UniversityBangkokThailand
| | | | - Keswadee Lapphra
- Department of Pediatrics, Faculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Nagalingeswaran Kumarasamy
- Chennai Antiviral Research and Treatment Clinical Research SiteVHS‐Infectious Diseases Medical CentreVHSChennaiIndia
| | | | | | - Torsak Bunupuradah
- The HIV Netherlands Australia Thailand Research CollaborationThe Thai Red Cross AIDS Research CentreBangkokThailand
| | - Penh Sun Ly
- National Centre for HIV/AIDS, Dermatology and STDsPhnom PenhCambodia
| | | | - Annette H Sohn
- TREAT Asia/amfAR – The Foundation for AIDS ResearchBangkokThailand
| | - Virat Sirisanthana
- Research Institute for Health SciencesChiang Mai UniversityChiang MaiThailand
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Epigenetic Suppression of HIV in Myeloid Cells by the BRD4-Selective Small Molecule Modulator ZL0580. J Virol 2020; 94:JVI.01880-19. [PMID: 32188727 DOI: 10.1128/jvi.01880-19] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/08/2020] [Indexed: 01/06/2023] Open
Abstract
Brain-resident microglia and myeloid cells (perivascular macrophages) are important HIV reservoirs in vivo, especially in the central nervous system (CNS). Despite antiretroviral therapy (ART), low-level persistent HIV replication in these reservoirs remains detectable, which contributes to neuroinflammation and neurological disorders in HIV-infected patients. New approaches complementary to ART to repress residual HIV replication in CNS reservoirs are needed. Our group has recently identified a BRD4-selective small molecule modulator (ZL0580) that induces the epigenetic suppression of HIV. Here, we examined the effects of this compound on HIV in human myeloid cells. We found that ZL0580 induces potent and durable suppression of both induced and basal HIV transcription in microglial cells (HC69) and monocytic cell lines (U1 and OM10.1). Pretreatment of microglia with ZL0580 renders them more refractory to latent HIV reactivation, indicating an epigenetic reprogramming effect of ZL0580 on HIV long terminal repeat (LTR) in microglia. We also demonstrate that ZL0580 induces repressive effect on HIV in human primary monocyte-derived macrophages (MDMs) by promoting HIV suppression during ART treatment. Mechanistically, ZL0580 inhibits Tat transactivation in microglia by disrupting binding of Tat to CDK9, a process key to HIV transcription elongation. High-resolution micrococcal nuclease mapping showed that ZL0580 induces a repressive chromatin structure at the HIV LTR. Taken together, our data suggest that ZL0580 represents a potential approach that could be used in combination with ART to suppress residual HIV replication and/or latent HIV reactivation in CNS reservoirs, thereby reducing HIV-associated neuroinflammation.IMPORTANCE Brain-resident microglia and perivascular macrophages are important HIV reservoirs in the CNS. Persistent viral replication and latent HIV reactivation in the CNS, even under ART, are believed to occur, causing neuroinflammation and neurological disorders in HIV-infected patients. It is critical to identify new approaches that can control residual HIV replication and/or latent HIV reactivation in these reservoirs. We here report that the BRD4-selective small molecule modulator, ZL0580, induces potent and durable suppression of HIV in human microglial and monocytic cell lines. Using an in vitro HIV-infected, ART-treated MDM model, we show that ZL0580 also induces suppressive effect on HIV in human primary macrophages. The significance of our research is that it suggests a potential new approach that has utility in combination with ART to suppress residual HIV replication and/or HIV reactivation in CNS reservoirs, thereby reducing neuroinflammation and neurological disorders in HIV-infected individuals.
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Differences in HIV Markers between Infected Individuals Treated with Different ART Regimens: Implications for the Persistence of Viral Reservoirs. Viruses 2020; 12:v12050489. [PMID: 32349381 PMCID: PMC7290301 DOI: 10.3390/v12050489] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 12/17/2022] Open
Abstract
In adherent individuals, antiretroviral therapy (ART) suppresses HIV replication, restores immune function, and prevents the development of AIDS. However, ART is not curative and has to be followed lifelong. Persistence of viral reservoirs forms the major obstacle to an HIV cure. HIV latent reservoirs persist primarily by cell longevity and proliferation, but replenishment by residual virus replication despite ART has been proposed as another potential mechanism of HIV persistence. It is a matter of debate whether different ART regimens are equally potent in suppressing HIV replication. Here, we summarized the current knowledge on the role of ART regimens in HIV persistence, focusing on differences in residual plasma viremia and other virological markers of the HIV reservoir between infected individuals treated with combination ART composed of different antiretroviral drug classes.
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Murray SM, Zhang Y, Douek DC, Sekaly RP. Myeloid Cells Enriched for a Dendritic Cell Population From People Living With HIV Have Altered Gene Expression Not Restored by Antiretroviral Therapy. Front Immunol 2020; 11:261. [PMID: 32194550 PMCID: PMC7064632 DOI: 10.3389/fimmu.2020.00261] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Accepted: 01/31/2020] [Indexed: 12/22/2022] Open
Abstract
Antiretroviral therapy (ART) for human immunodeficiency virus (HIV) infections has been designed to optimize CD4 T-cell survival and limit HIV replication. Cell types other than CD4 T cells such as monocytes/macrophage, dendritic cells, and granulocytes (collectively known as myeloid cells), are generally not considered in the development of ART protocols. Myeloid dendritic cells (mDCs) are the most potent inducers of CD4 T-cell activation and central to the regulation of immune responses. mDCs in the blood are decreased in number, altered in function, and implicated in promoting HIV latency in people living with HIV (PLWH). We found that cells enriched for mDC in PLWH had transcriptional changes compared to mDC from HIV uninfected individuals, some of which were not completely restored by ART. In contrast, other mDC functions such as interleukin-1 signaling and type I interferon pathways were restored by ART. Some of the transcriptional changes in mDC not completely reversed by ART were enriched in genes that are classically associated with cells of the monocyte/macrophage lineage, but new single-cell RNA sequencing studies show that they are also expressed by a subset of mDC. A cellular enzyme, acyloxyacyl hydrolase (AOAH), important for lipopolysaccharide (LPS) detoxification, had increased transcription in mDC of PLWH, not restored by ART. It is possible that one reason ART is not completely successful in PLWH is the failure to phenotypically change the mDCs. Thus, inability of ART to be completely effective might involve myeloid cells and the failure to restore mDC function as measured by gene transcription. We suggest that mDC and myeloid cells should be considered in future combination ART development.
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Affiliation(s)
- Shannon M Murray
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Yuwei Zhang
- Vaccine and Gene Therapy Institute Florida, Port St. Lucie, FL, United States
| | - Daniel C Douek
- Human Immunology Section, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Rafick P Sekaly
- Vaccine and Gene Therapy Institute Florida, Port St. Lucie, FL, United States
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30
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Byonanebye DM, Semitala FC, Katende J, Bakenga A, Arinaitwe I, Kyambadde P, Musinguzi P, Biraro IA, Byakika-Kibwika P, Kamya MR. High viral suppression and low attrition in healthy HIV-infected patients initiated on ART with CD4 above 500 cells/µL in a program setting in Uganda. Afr Health Sci 2020; 20:132-141. [PMID: 33402901 PMCID: PMC7750048 DOI: 10.4314/ahs.v20i1.18] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The World Health Organization recommends antiretroviral therapy (ART) for all HIV-infected patients at all CD4 counts. However, there are concerns that asymptomatic patients may have poorer viral suppression and high attrition. OBJECTIVES We sought to determine attrition and viral suppression among healthy HIV-infected patients initiated on ART in program settings. METHODS This cross-sectional study enrolled ART-experienced patients attending two PEPFAR-supported, high-volume clinics in Kampala, Uganda. Eligible patients were >18 years and had completed at least six months on ART. Participants were interviewed on socio-demographics, ART history and plasma viral load (VL) determined using Abbott Real-time. Predictors of viral suppression (<75 copies/ml) were determined using multivariate logistic regression. RESULTS Overall, 267 participants were screened, 228 were eligible and 203 (89%) retained in care (visit within 90 days). Of the 203 participants, 115 (56.7%) were key-populations. Viral suppression was achieved in 173 patients (85%; 95% CI, 80.3%-90.1%). The factors associated with viral suppression were prior VL tests (AOR 6.98; p-value <0.001) and receiving care from a general clinic (AOR 5.41; p=0.009). CONCLUSION Asymptomatic patients initiated on ART with high baseline CD4 counts, achieve high viral suppression with low risk of attrition. VL monitoring and clinic type are associated with viral suppression.
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Affiliation(s)
| | - Fred C Semitala
- Makerere University College of Health Sciences, Kampala, Uganda
- Makerere University Joint AIDS Program, Kampala, Uganda
| | | | - Alex Bakenga
- Makerere University College of Health Sciences, Kampala, Uganda
| | - Irene Arinaitwe
- Makerere University College of Computing and Information Science
| | | | | | | | | | - Moses R Kamya
- Makerere University College of Health Sciences, Kampala, Uganda
- Infectious Diseases Research Collaboration, Kampala Uganda
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Zhang T, Ding H, An M, Wang X, Tian W, Zhao B, Han X. Factors associated with high-risk low-level viremia leading to virologic failure: 16-year retrospective study of a Chinese antiretroviral therapy cohort. BMC Infect Dis 2020; 20:147. [PMID: 32066392 PMCID: PMC7026956 DOI: 10.1186/s12879-020-4837-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/30/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Low level viremia (LLV) often occurs during antiretroviral therapy (ART) against HIV-1. However, whether LLV increases the risk of virologic failure (VF) is controversial because of the non-uniform definitions of LLV and VF. METHODS A long-term first line regimen ART cohort from 2002 to 2018 from Shenyang, northeast China, was retrospectively studied. All participants were followed up every 3 to 6 months to evaluate the treatment effect. The high-risk LLV subgroups leading to VF (with strict standards) were explored with Cox proportional hazards model and linear mixed-effect model. The association factors of high-risk LLV were further explored using multivariate logistic regression analyses. RESULTS A total of 2155 HIV-1 infected participants were included; of these, 38.7% showed LLV. Both high level LLV (HLLV) and any other level LLV coupled with high level blip (HLB) showed higher risk of VF (hazards ratios, HRHLLV = 5.93, and HRHLB = 2.84, p < 0.05 respectively). Moreover, HR increased with prolonged duration of LLV. Independent factors associated with high-risk LLV included the zenith baseline viral load (VL) above 6 log copies/ml (aOR = 3.49, p = 0.002), nadir baseline CD4 + T cell counts below 200 cells/mm3 (aOR = 1.78, p = 0.011), Manchu (aOR = 2.03, p = 0.003), ART over 60 months (aOR = 1.81, p = 0.004), AZT + 3TC + NVP (aOR = 2.26, p < 0.001) or DDI-based regimen (aOR = 9.96, p = 0.002), and subtype B' infection (aOR = 8.22, p = 0.001). CONCLUSIONS In case of VF with strict standards, high-risk LLV leading to VF includes VL above 400 copies/ml, occurring at least once. Serious laboratory indicators or advanced stage of infection, long term ART and subtype B' infection might also predict the occurrence of high-risk LLV.
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Affiliation(s)
- Tong Zhang
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Haibo Ding
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Minghui An
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Xiaonan Wang
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Wen Tian
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Bin Zhao
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China.,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China.,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China
| | - Xiaoxu Han
- NHC Key Laboratory of AIDS Immunology (China Medical University), Department of Laboratory Medicine, The First Affiliated Hospital of China Medical University, No 155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning Province, China. .,National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China. .,Key Laboratory of AIDS Immunology of Liaoning Province, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China. .,Key Laboratory of AIDS Immunology, Chinese Academy of Medical Sciences, Shenyang, 110001, China. .,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, 79 Qingchun Street, Hangzhou, 310003, China.
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Cumulative viral load as a predictor of CD4+ T-cell response to antiretroviral therapy using Bayesian statistical models. PLoS One 2019; 14:e0224723. [PMID: 31721805 PMCID: PMC6853324 DOI: 10.1371/journal.pone.0224723] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 10/21/2019] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION There are Challenges in statistically modelling immune responses to longitudinal HIV viral load exposure as a function of covariates. We define Bayesian Markov Chain Monte Carlo mixed effects models to incorporate priors and examine the effect of different distributional assumptions. We prospectively fit these models to an as-yet-unpublished data from the Tshwane District Hospital HIV treatment clinic in South Africa, to determine if cumulative log viral load, an indicator of long-term viral exposure, is a valid predictor of immune response. METHODS Models are defined, to express 'slope', i.e. mean annual increase in CD4 counts, and 'asymptote', i.e. the odds of having a CD4 count ≥500 cells/μL during antiretroviral treatment, as a function of covariates and random-effects. We compare the effect of using informative versus non-informative prior distributions on model parameters. Models with cubic splines or Skew-normal distributions are also compared using the conditional Deviance Information Criterion. RESULTS The data of 750 patients are analyzed. Overall, models adjusting for cumulative log viral load provide a significantly better fit than those that do not. An increase in cumulative log viral load is associated with a decrease in CD4 count slope (19.6 cells/μL (95% credible interval: 28.26, 10.93)) and a reduction in the odds of achieving a CD4 counts ≥500 cells/μL (0.42 (95% CI: 0.236, 0.730)) during 5 years of therapy. Using informative priors improves the cumulative log viral load estimate, and a skew-normal distribution for the random-intercept and measurement error results is a better fit compared to using classical Gaussian distributions. DISCUSSION We demonstrate in an unpublished South African cohort that cumulative log viral load is a strong and significant predictor of both CD4 count slope and asymptote. We argue that Bayesian methods should be used more frequently for such data, given their flexibility to incorporate prior information and non-Gaussian distributions.
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Qi Q, Hua S, Clish CB, Scott JM, Hanna DB, Wang T, Haberlen SA, Shah SJ, Glesby MJ, Lazar JM, Burk RD, Hodis HN, Landay AL, Post WS, Anastos K, Kaplan RC. Plasma Tryptophan-Kynurenine Metabolites Are Altered in Human Immunodeficiency Virus Infection and Associated With Progression of Carotid Artery Atherosclerosis. Clin Infect Dis 2019; 67:235-242. [PMID: 29415228 DOI: 10.1093/cid/ciy053] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 02/01/2018] [Indexed: 12/20/2022] Open
Abstract
Background It is unknown whether disrupted tryptophan catabolism is associated with cardiovascular disease (CVD) in human immunodeficiency virus (HIV)-infected individuals. Methods Plasma tryptophan and kynurenic acid were measured in 737 women and men (520 HIV+, 217 HIV-) from the Women's Interagency HIV Study and the Multicenter AIDS Cohort Study. Repeated B-mode carotid artery ultrasound imaging was obtained from 2004 through 2013. We examined associations of baseline tryptophan, kynurenic acid, and kynurenic acid-to-tryptophan (KYNA/TRP) ratio, with risk of carotid plaque. Results After a 7-year follow-up, 112 participants developed carotid plaque. Compared to those without HIV infection, HIV-infected participants had lower tryptophan (P < .001), higher KYNA/TRP (P = .01), and similar kynurenic acid levels (P = .51). Tryptophan, kynurenic acid, and KYNA/TRP were correlated with T-cell activation (CD38+HLA-DR+) and immune activation markers (serum sCD14, galectin-3) but had few correlations with interleukin-6, C-reactive protein, or CVD risk factors (blood pressure, lipids). Adjusted for demographic and behavioral factors, each standard deviation (SD) increment in tryptophan was associated with a 29% (95% confidence interval [CI], 17%-38%) decreased risk of carotid plaque (P < .001), while each SD increment in kynurenic acid (P = .02) and KYNA/TRP (P < .001) was associated with a 34% (6%-69%) and a 47% (26%-73%) increased risk of carotid plaque, respectively. After further adjustment for CVD risk factors and immune activation markers, these associations were attenuated but remained significant. Conclusions Plasma tryptophan-kynurenine metabolites are altered in HIV infection and associated with progression of carotid artery atherosclerosis.
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Affiliation(s)
- Qibin Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Simin Hua
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Clary B Clish
- Broad Institute of the Massachusetts Institute of Technology and Harvard, Cambridge
| | - Justin M Scott
- Broad Institute of the Massachusetts Institute of Technology and Harvard, Cambridge
| | - David B Hanna
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Tao Wang
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Sabina A Haberlen
- Department of Epidemiology, Johns Hopkins University, Baltimore, Maryland
| | - Sanjiv J Shah
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | - Jason M Lazar
- Department of Medicine, SUNY-Downstate Medical Center, Brooklyn, New York
| | - Robert D Burk
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Howard N Hodis
- Division of Cardiovascular Medicine, Keck School of Medicine, University of Southern California, Los Angeles
| | - Alan L Landay
- Department of Immunology and Microbiology, Rush University Medical Center, Chicago, Illinois
| | - Wendy S Post
- Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Kathryn Anastos
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York
| | - Robert C Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
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Low-level viremia and virologic failure in persons with HIV infection treated with antiretroviral therapy. AIDS 2019; 33:2005-2012. [PMID: 31306175 DOI: 10.1097/qad.0000000000002306] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND The clinical management of low-level viremia (LLV) remains unclear. The objective of this study was to investigate the association of blips and LLV with virologic failure. METHODS We enlisted patients who newly enrolled into the HIV Research Network between 2005 and 2015, had HIV-1 RNA more than 200 copies/ml, and were either antiretroviral therapy (ART)-naive or ART-experienced and not on ART. Patients were included who achieved virologic suppression (≤50 on two consecutive viral loads) and had at least two viral loads following suppression. Blips and LLV (≥2 consecutive >51 copies/ml) were categorized separately into three categories: no blips/LLV, 51-200, 201-500. Cox proportional hazards regression was used to assess association between rates of blips/LLV and virologic failure (two consecutive >500). RESULTS The 2795 patients were mostly male (75.4%), black (50.3%), and MSM (52.9%). Median age was 38 years old (interquartile range 29-48). Most patients (88.8%) were ART-naive at study entry. Overall, 283 (10.1%) patients experienced virologic failure. A total of 152 (5.4%) patients experienced LLV to 51-200 and 110 (3.9%) patients experienced LLV to 201-500. Both LLV 51-200 [adjusted hazard ratio (aHR) 1.83 (1.10,3.04)] and LLV 201-500 [aHR 4.26 (2.65,6.86)] were associated with virologic failure. In sensitivity analysis excluding ART-experienced patients, the association between LLV 51 and 200 and virologic failure was not statistically significant. CONCLUSION LLV between 201 and 500 was associated with virologic failure, as was LLV between 51 and 200, particularly among ART-experienced patients. Patients with LLV below the current Department of Health and Human Services threshold for virologic failure (persistent viremia ≥200) may require more intensive monitoring because of increased risk for virologic failure.
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HBcAb seropositivity is correlated with poor HIV viremia control in an Italian cohort of HIV/HBV-coinfected patients on first-line therapy. Sci Rep 2019; 9:11942. [PMID: 31420570 PMCID: PMC6697726 DOI: 10.1038/s41598-019-46976-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/08/2019] [Indexed: 02/08/2023] Open
Abstract
The morbidity and mortality rates of human immunodeficiency virus (HIV)-hepatitis B virus (HBV) coinfection are higher than that of either infection alone. Outcomes and the virological response to antiretrovirals (combination antiretroviral therapy, cART) were explored in HIV/HBV subjects in a cohort of Italian patients treated with cART. A single-center retrospective analysis of patients enrolled from January 2007 to June 2018 was conducted by grouping patients by HBV status and recording baseline viro-immunological features, the history of virological failure, the efficacy of cART in achieving HIV viral undetectability, viral blip detection and viral rebound on follow up. Among 231 enrolled patients, 10 (4.3%) were HBV surface (s) antigen (HBsAg)-positive, 85 (36.8%) were positive for antibodies to HBV c antigen (HBcAb) and with or without antibodies to HBV s antigen (HBsAb), and 136 were (58.9%) HBV-negative. At baseline, HBcAb/HBsAb+/--positive patients had lower CD4+ cell counts and CD4+ nadirs (188 cell/mmc, IQR 78-334, p = 0.02 and 176 cell/mmc, IQR 52-284, p = 0,001, respectively). There were significantly higher numbers of AIDS and non-AIDS events in the HBcAb+/HBsAb+/--positive subjects than in the HBV-negative patients (41.1% vs 19.1%, p = 0.002 and 56.5% vs 28.7%, respectively, p ≤ 0.0001); additionally, HIV viremia undetectability was achieved a significantly longer time after cART was begun in the former than in the latter population (6 vs 4 months, p = 0.0001). Cox multivariable analysis confirmed that after starting cART, an HBcAb+/HBsAb+/--positive status is a risk factor for a lower odds of achieving virological success and a higher risk of experiencing virological rebound (AHR 0.63, CI 95% 0.46-0.87, p = 0.004 and AHR 2.52, CI 95% 1.09-5.80, p = 0.030). HBcAb-positive status resulted in a delay in achieving HIV < 50 copies/mL and the appearance of viral rebound in course of cART, hence it is related to a poor control of HIV infection in a population of coinfected patients.
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Parisi SG, Basso M, Scaggiante R, Andreis S, Mengoli C, Cruciani M, Del Vecchio C, Menegotto N, Zago D, Sarmati L, Andreoni M, Palù G. Oral and anal high-risk human papilloma virus infection in HIV-positive men who have sex with men over a 24-month longitudinal study: complexity and vaccine implications. BMC Public Health 2019; 19:645. [PMID: 31138232 PMCID: PMC6537447 DOI: 10.1186/s12889-019-7004-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 05/17/2019] [Indexed: 01/06/2023] Open
Abstract
Background Few studies focused on longitudinal modifications over time of high-risk HPV (HR-HPV) at anal and oral sites in HIV+ men who have sex with men (MSM). Methods We described patterns and longitudinal changes of HR-HPV detection and the prevalence of HR-HPV covered by the nonavalent HPV vaccine (vax-HPV) at oral and anal sites in 165 HIV+ MSM followed in an Italian hospital. The samples were collected at baseline and after 24 months (follow-up). The presence of HPV was investigated with Inno-LiPA HPV Genotyping Extra II. Results Median age was 44 years (IQR 36–53), median CD4+ cell count at nadir was 312 cells/mm3 (IQR 187–450). A total of 120 subjects (72.7%) were receiving successful antiretroviral therapy (ART). At baseline and follow-up, the frequency of HR-HPV was significantly higher in the anal site (65.4% vs 9.4 and 62.4% vs 6.8%, respectively). Only 2.9% of subjects were persistently HR-HPV negative at both sites. All oral HR-HPV were single at baseline vs 54.6% at baseline at the anal site (p = 0.005), and all oral HR-HPV were single at follow-up vs 54.4% at anal site at follow-up (p = 0.002). The lowest rate of concordance between the oral and anal results was found for HR-HPV detection; almost all HR-HPV positive results at both anal and oral sites had different HR-HPV.The most frequent HR-HPV in anal swabs at baseline and follow-up were HPV-16 and HPV-52.At follow-up at anal site, 37.5% of patients had different HR-HPV genotypes respect to baseline, 28.8% of subjects with 1 HR-HPV at baseline had an increased number of HR-HPV, and patients on ART showed a lower frequency of confirmed anal HR-HPV detection than untreated patients (p = 0.03) over time. Additionally,54.6 and 50.5% of patients had only HR-vax-HPV at anal site at baseline and follow-up, respectively; 15.2% had only HR-vax-HPV at baseline and follow-up. Conclusions We believe that it is important testing multiple sites over time in HIV-positive MSM. ART seems to protect men from anal HR-HPV confirmed detection. Vaccination programmes could reduce the number of HR-HPV genotypes at anal site and the risk of the first HR-HPV acquisition at the oral site. Electronic supplementary material The online version of this article (10.1186/s12889-019-7004-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Saverio Giuseppe Parisi
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy.
| | - Monica Basso
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy.
| | - Renzo Scaggiante
- Infectious Diseases Unit, Padova Hospital, Via Giustiniani, 2 -, 35128, Padova, Italy
| | - Samantha Andreis
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy
| | - Carlo Mengoli
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy
| | - Mario Cruciani
- Center of Diffusive Diseases, ULSS 9, Via Campania 1, 37136, Verona, Italy
| | - Claudia Del Vecchio
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy
| | - Nicola Menegotto
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy
| | - Daniela Zago
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy
| | - Loredana Sarmati
- Clinical Infectious Diseases, Tor Vergata University, Viale Oxford, 81, 00133, Rome, Italy
| | - Massimo Andreoni
- Clinical Infectious Diseases, Tor Vergata University, Viale Oxford, 81, 00133, Rome, Italy
| | - Giorgio Palù
- Department of Molecular Medicine, University of Padova, Via Gabelli 63, 35100, Padova, Italy
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Lambert-Niclot S, Boyd A, Fofana D, Valin N, Wirden M, Meynard JL, Palich R, Agher R, Valantin MA, Calvez V, Katlama C, Girard PM, Marcelin AG, Morand-Joubert L. INSTI-Based Triple Regimens in Treatment-Naïve HIV-Infected Patients Are Associated With HIV-RNA Viral Load Suppression at Ultralow Levels. Open Forum Infect Dis 2019; 6:ofz177. [PMID: 31123690 PMCID: PMC6524833 DOI: 10.1093/ofid/ofz177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 04/08/2019] [Indexed: 12/22/2022] Open
Abstract
Background During antiretroviral therapy (ART), HIV-1-infected patients may present with ultralow (UL) HIV-RNA viral loads (VLs) below quantification levels of current assays. Reasons for UL-VL detection and its relation to virological rebound (VR) are unclear. Methods HIV-1-infected, ART-naïve patients followed at 2 university hospitals were included. All participants had an HIV-RNA >200 copies/mL at ART initiation and achieved a VL <50 copies/mL during ART. UL-VL was determined by the presence/absence of polymerase chain reaction signal detected using a commercially available assay (COBAS, TaqMan, Roche). Random-effects Poisson regression was used for assessing determinants of UL-VL not detected overtime and conditional risk set analysis for VR (1 VL > 200 copies/mL or 2 VL > 50 copies/mL) while accounting for frequency of VL measurements. Results Between 2009 and 2013, 717 patients initiated ART containing 2 nucleos(-t)ide reverse transcriptase inhibitors (NRTIs) plus a non-NRTI (29.4%), a protease inhibitor (58.4%), or an integrase-strand transfer inhibitor (INSTI; 12.1%). During a median (interquartile range) 3.4 (2.3–4.6) years, 676 (94.3%) patients achieved UL-VL not detected. In multivariable analysis, UL-VL not detected overtime was associated with younger age (P < .001), female gender (P = .04), lower baseline VL (P < .001), baseline CD4+ >500 vs <350/mm3 (P < .001), and INSTI-containing ART (P = .009). One hundred thirty-one (18.3%) patients had VR during follow-up, which was independently associated with a CD4/CD8 ratio <0.8 during follow-up (P = .01) and time spent with UL-VL not detected (P < .001). When UL-VL not detected occurred for ≥50% of the follow-up duration (n = 290), faster time to reach UL-VL not detected (P < .001), faster CD4+ T-cell count increase (P = .03), and faster CD4/CD8 ratio increase (P = .001) were observed. Conclusions VL suppression at an ultralow level is associated with INSTI-class ART initiation. Extensive VL suppression below ultralow detection could improve immune reconstitution.
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Affiliation(s)
- Sidonie Lambert-Niclot
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Saint-Antoine, Laboratoire de Virologie, Paris, France
| | - Anders Boyd
- INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France
| | - Djeneba Fofana
- INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Saint-Antoine, Laboratoire de Virologie, Paris, France
| | - Nadia Valin
- AP-HP, Hôpital Saint-Antoine, Département de Maladies Infectieuses, Paris, France
| | - Marc Wirden
- INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Pitié Salpêtrière, Laboratoire de Virologie, Paris, France
| | - Jean-Luc Meynard
- AP-HP, Hôpital Saint-Antoine, Département de Maladies Infectieuses, Paris, France
| | - Romain Palich
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Pitié Salpêtrière, Département de Maladies Infectieuses, Paris, France
| | - Rachid Agher
- AP-HP, Hôpital Pitié Salpêtrière, Département de Maladies Infectieuses, Paris, France
| | - Marc-Antoine Valantin
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Pitié Salpêtrière, Département de Maladies Infectieuses, Paris, France
| | - Vincent Calvez
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Pitié Salpêtrière, Laboratoire de Virologie, Paris, France
| | - Christine Katlama
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Pitié Salpêtrière, Département de Maladies Infectieuses, Paris, France
| | - Pierre-Marie Girard
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Saint-Antoine, Département de Maladies Infectieuses, Paris, France
| | - Anne-Geneviève Marcelin
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Pitié Salpêtrière, Laboratoire de Virologie, Paris, France
| | - Laurence Morand-Joubert
- Sorbonne Université, Paris, France.,INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), Paris, France.,AP-HP, Hôpital Saint-Antoine, Laboratoire de Virologie, Paris, France
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Sovershaeva E, Shamu T, Wilsgaard T, Bandason T, Flægstad T, Katzenstein D, Ferrand RA, Odland J. Patterns of detectable viraemia among children and adults with HIV infection taking antiretroviral therapy in Zimbabwe. Int J Infect Dis 2019; 78:65-71. [PMID: 30391420 PMCID: PMC7614873 DOI: 10.1016/j.ijid.2018.10.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/24/2018] [Accepted: 10/25/2018] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVE To investigate the incidence and predictors of viraemia among individuals on antiretroviral therapy (ART) in Harare, Zimbabwe. METHODS Children (0-19 years) and adults (>19 years) starting ART between 2013 and 2015 were followed for a median of 2.8 and 2.7 years, respectively. The incidence rates of virological failure (VF), low-level viraemia (LLV), and viral blips were assessed and the predictors of viraemia were determined using logistic and parametric survival regression analyses. RESULTS A total of 630 individuals initiated ART, and 19.7% of children and 5.6% of adults did not achieve viral suppression by 12 months. Younger age and CD4 count ≤200 cells/mm3 at baseline were associated with not being virally suppressed at 12 months in adults. Among those who achieved viral suppression during the follow-up period, the incidence of VF was higher in children (4.0/100 person-years vs. 0.4/100 person-years in adults; p<0.001), as was the incidence of LLV (1.9/100 person-years vs. 0.3/100 person-years in adults; p=0.03). The incidence rate of blips was 10.9 per 100 person-years in children and 4.0 per 100 person-years in adults. CONCLUSIONS Children are less likely to reach viral suppression and are at higher risk of viraemia while on ART than adults. The significance of LLV and blips needs further study.
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Affiliation(s)
- Evgeniya Sovershaeva
- Department of Community Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway.
| | | | - Tom Wilsgaard
- Department of Community Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Tsitsi Bandason
- Biomedical Research and Training Institute, Harare, Zimbabwe
| | - Trond Flægstad
- Department of Paediatrics, University Hospital of North Norway, Tromsø, Norway
| | - David Katzenstein
- Division of Infectious Diseases, Stanford University, California, USA
| | - Rashida A Ferrand
- Biomedical Research and Training Institute, Harare, Zimbabwe; Clinical Research Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Jon Odland
- Department of Community Medicine, Faculty of Health Sciences, UiT-The Arctic University of Norway, Tromsø, Norway; Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, NTNU The Norwegian University of Science and Technology, Trondheim, Norway
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Cardozo EF, Piovoso MJ, Zurakowski R. Increased inflammation in sanctuary sites may explain viral blips in HIV infection. IET Syst Biol 2018; 10:153-66. [PMID: 27444025 DOI: 10.1049/iet-syb.2015.0066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Combined antiretroviral therapy (cART) suppress HIV-1 viral replication, such that viral load in plasma remains below the limit of detection in standard assays. However, intermittent episodes of transient viremia (blips) occur in a set of HIV-patients. Given that follicular hyperplasia occurs during lymphoid inflammation as a normal response to infection, it is hypothesised that when the diameter of the lymph node follicle (LNF) increases and crosses a critical size, a viral blip occurs due to cryptic viremia. To study this hypothesis, a theoretical analysis of a mathematical model is performed to find the conditions for virus suppression in all compartments and different scenarios of LNF size changes are simulated. According to the analysis, blips with duration of around 30 days arise when the diameter rise rate is between 0.02 and 0.03 days(-1). Moreover, the final diameter of the site is directly related to the steady states of the virus load after the occurrence of a blip. When the value of R0 is around 2.1, to have a steady-state below the limit of detection after the viral blip, the maximum final diameters should be greater than 0.7 mm so that there is a relative loss of connection between compartments.
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Affiliation(s)
- E Fabian Cardozo
- Theoretical Biology and Biophysics Group, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
| | - Michael J Piovoso
- Electrical Engineering Department, Pennsylvania State University, Malvern, Pennsylvania 19355, USA
| | - Ryan Zurakowski
- Electrical and Computer Engineering Department, University of Delaware, Newark, Delaware 19716, USA
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40
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Churchill D, Waters L, Ahmed N, Angus B, Boffito M, Bower M, Dunn D, Edwards S, Emerson C, Fidler S, Fisher M, Horne R, Khoo S, Leen C, Mackie N, Marshall N, Monteiro F, Nelson M, Orkin C, Palfreeman A, Pett S, Phillips A, Post F, Pozniak A, Reeves I, Sabin C, Trevelion R, Walsh J, Wilkins E, Williams I, Winston A. British HIV Association guidelines for the treatment of HIV-1-positive adults with antiretroviral therapy 2015. HIV Med 2018; 17 Suppl 4:s2-s104. [PMID: 27568911 DOI: 10.1111/hiv.12426] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | | | | | - Mark Bower
- Chelsea and Westminster Hospital, London, UK
| | | | - Simon Edwards
- Central and North West London NHS Foundation Trust, UK
| | | | - Sarah Fidler
- Imperial College School of Medicine at St Mary's, London, UK
| | | | | | | | | | | | | | | | - Mark Nelson
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | | | | | | | | | | | - Anton Pozniak
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | | | - Caroline Sabin
- Royal Free and University College Medical School, London, UK
| | | | - John Walsh
- Imperial College Healthcare NHS Trust, London, UK
| | | | - Ian Williams
- Royal Free and University College Medical School, London, UK
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Monotypic low-level HIV viremias during antiretroviral therapy are associated with disproportionate production of X4 virions and systemic immune activation. AIDS 2018; 32:1389-1401. [PMID: 29683841 PMCID: PMC6039404 DOI: 10.1097/qad.0000000000001824] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE During effective antiretroviral therapy (ART), low-level plasma viremias (LLV) (HIV RNA >30-1000 copies/ml) can be detected intermittently. We hypothesized that systemic inflammation is associated with LLV either as the cause or result of the production of virions from clonally expanded cells. METHODS Prospective cohort study of HIV-infected ART-naive Peruvians enrolled prior to ART and followed for 2 years. Plasma HIV RNA and peripheral blood mononuclear cell (PBMC) HIV DNA concentrations were quantified pre-ART from individuals whose plasma HIV RNA was ART-suppressed. Inflammatory biomarker concentrations were measured pre and during ART. Single-genome amplification (SGA) derived HIV env and pol genotypes from pre-ART and LLV specimens. Antiretroviral levels during ART assessed adherence. Statistical associations and phylogenetic relationships were examined. RESULTS Among 82 participants with median plasma HIV RNA less than 30 copies/ml, LLV were detected in 33 of 82 (40%), with a LLV median HIV RNA of 73 copies/ml. Participants with vs. without LLV had significantly higher pre-ART plasma HIV RNA (P < 0.001) and PBMC HIV DNA (P < 0.007); but, during ART, their antiretroviral drug levels were similar. LLV env sequences were monotypic in 17 of 28 (61%) and diverse in 11 of 28 (39%) participants. Those with the monotypic vs. diverse LLV pattern had elevated hsCRP and sCD163 (P = 0.004) and LLV with more X4 variants (P = 0.02). CONCLUSION In individuals with monotypic LLV sequences, higher levels of pre-ART HIV DNA and RNA, systemic inflammation and X4 viruses suggest an interaction between inflammation and the production of virions from proliferating infected cells, and that naïve T cells may be a source of LLV.
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42
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Armenia D, Di Carlo D, Calcagno A, Vendemiati G, Forbici F, Bertoli A, Berno G, Carta S, Continenza F, Fedele V, Bellagamba R, Cicalini S, Ammassari A, Libertone R, Zaccarelli M, Ghisetti V, Andreoni M, Ceccherini-Silberstein F, Bonora S, Di Perri G, Antinori A, Perno CF, Santoro MM. Pre-existent NRTI and NNRTI resistance impacts on maintenance of virological suppression in HIV-1-infected patients who switch to a tenofovir/emtricitabine/rilpivirine single-tablet regimen. J Antimicrob Chemother 2017; 72:855-865. [PMID: 27999048 DOI: 10.1093/jac/dkw512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/01/2016] [Indexed: 01/04/2023] Open
Abstract
Objectives To evaluate the maintenance of virological suppression (VS) in antiretroviral-treated HIV-1-suppressed patients switching to a tenofovir/emtricitabine/rilpivirine (TDF/FTC/RPV) single-tablet regimen, by considering pre-existent resistance (pRes). Methods pRes was evaluated according to resistance on all previous plasma genotypic resistance tests. Probability and predictors of virological rebound (VR) were evaluated. Results Three hundred and nine patients were analysed; 5.8% of them showed resistance to both NRTIs and NNRTIs, while 12.6% showed resistance to only one of these drug classes. By 72 weeks, the probability of VR was 11.3%. A higher probability of VR was found in the following groups: (i) patients with NRTI + NNRTI pRes compared with those harbouring NRTI or NNRTI pRes and with those without reverse transcriptase inhibitor pRes (39.2% versus 11.5% versus 9.4%, P < 0.0001); (ii) patients with a virus with full/intermediate resistance to both tenofovir/emtricitabine and rilpivirine compared with those having a virus with full/intermediate resistance to tenofovir/emtricitabine or rilpivirine and those having a virus fully susceptible to TDF/FTC/RPV (36.4% versus 17.8% versus 9.7%, P < 0.001); and (iii) patients with pre-therapy viraemia >500 000 copies/mL compared with those with lower viraemia levels (>500 000: 16.0%; 100 000-500 000: 9.3%; <100 000 copies/mL: 4.8%, P = 0.009). pRes and pre-therapy viraemia >500 000 copies/mL were independent predictors of VR by multivariable Cox regression. Conclusions TDF/FTC/RPV as a treatment simplification strategy shows a very high rate of VS maintenance. The presence of pRes to both NRTIs and NNRTIs and a pre-therapy viraemia >500 000 copies/mL are associated with an increased risk of VR, highlighting the need for an accurate selection of patients before simplification.
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Affiliation(s)
- D Armenia
- Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - D Di Carlo
- Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - A Calcagno
- Division of Infectious Diseases, University of Turin, Turin, Italy
| | - G Vendemiati
- Division of Infectious Diseases, University of Turin, Turin, Italy
| | - F Forbici
- Antiretroviral Drug Monitoring Laboratory, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - A Bertoli
- Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - G Berno
- Antiretroviral Drug Monitoring Laboratory, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - S Carta
- Antiretroviral Drug Monitoring Laboratory, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - F Continenza
- Antiretroviral Drug Monitoring Laboratory, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - V Fedele
- Antiretroviral Drug Monitoring Laboratory, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - R Bellagamba
- Infectious Diseases Division, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - S Cicalini
- Infectious Diseases Division, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - A Ammassari
- Infectious Diseases Division, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - R Libertone
- Infectious Diseases Division, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - M Zaccarelli
- Infectious Diseases Division, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - V Ghisetti
- Division of Infectious Diseases, University of Turin, Turin, Italy
| | - M Andreoni
- Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - S Bonora
- Division of Infectious Diseases, University of Turin, Turin, Italy
| | - G Di Perri
- Division of Infectious Diseases, University of Turin, Turin, Italy
| | - A Antinori
- Infectious Diseases Division, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - C F Perno
- Antiretroviral Drug Monitoring Laboratory, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - M M Santoro
- Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
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Reepalu A, Balcha TT, Sturegård E, Medstrand P, Björkman P. Long-term Outcome of Antiretroviral Treatment in Patients With and Without Concomitant Tuberculosis Receiving Health Center-Based Care-Results From a Prospective Cohort Study. Open Forum Infect Dis 2017; 4:ofx219. [PMID: 29226173 PMCID: PMC5714222 DOI: 10.1093/ofid/ofx219] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 09/28/2017] [Indexed: 02/02/2023] Open
Abstract
Background In order to increase treatment coverage, antiretroviral treatment (ART) is provided through primary health care in low-income high-burden countries, where tuberculosis (TB) co-infection is common. We investigated the long-term outcome of health center-based ART, with regard to concomitant TB. Methods ART-naïve adults were included in a prospective cohort at Ethiopian health centers and followed for up to 4 years after starting ART. All participants were investigated for active TB at inclusion. The primary study outcomes were the impact of concomitant TB on all-cause mortality, loss to follow-up (LTFU), and lack of virological suppression (VS). Kaplan-Meier survival estimates and Cox proportional hazards models with multivariate adjustments were used. Results In total, 141/729 (19%) subjects had concomitant TB, 85% with bacteriological confirmation (median CD4 count TB, 169 cells/mm3; IQR, 99-265; non-TB, 194 cells/mm3; IQR, 122-275). During follow-up (median, 2.5 years), 60 (8%) died and 58 (8%) were LTFU. After ≥6 months of ART, 131/630 (21%) had lack of VS. Concomitant TB did not influence the rates of death, LTFU, or VS. Male gender and malnutrition were associated with higher risk of adverse outcomes. Regardless of TB co-infection status, even after 3 years of ART, two-thirds of participants had CD4 counts below 500 cells/mm3. Conclusions Concomitant TB did not impact treatment outcomes in adults investigated for active TB before starting ART at Ethiopian health centers. However, one-third of patients had unsatisfactory long-term treatment outcomes and immunologic recovery was slow, illustrating the need for new interventions to optimize ART programs.
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Affiliation(s)
| | - Taye Tolera Balcha
- Clinical Infection Medicine.,Clinical Virology, Department of Translational Medicine, Lund University, Sweden
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Parisi SG, Basso M, Mengoli C, Scaggiante R, Andreis S, Franzetti MM, Cattelan AM, Zago D, Cruciani M, Andreoni M, Piovesan S, Palù G, Alberti A. Liver stiffness is not associated with short- and long-term plasma HIV RNA replication in immunocompetent patients with HIV infection and with HIV/HCV coinfection. Ann Gastroenterol 2017; 30:534-541. [PMID: 28845109 PMCID: PMC5566774 DOI: 10.20524/aog.2017.0175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/06/2017] [Indexed: 12/24/2022] Open
Abstract
Background Human immunodeficiency virus (HIV) may be directly responsible for liver damage but there are contrasting data regarding the influence of detectable plasma viremia. We analyzed the influence of plasma HIV RNA (pHIV) detectability and of other clinical and viro-immunological variables on liver stiffness (LS) measurement in adult immunocompetent HIV-monoinfected patients and in patients coinfected with hepatitis C virus (HCV). Methods Logistic regression analysis was performed using the value of LS>7.1 kPa as the dependent variable. A linear regression model was applied using LS measurement after log10 transformation (lkpa) as the dependent variable and we analyzed the predicted values versus the observed lkpa values; pHIV was classified as detectable or undetectable in the 12- and 36-month study periods before LS measurement. Results We studied 251 patients (178 with HIV monoinfection), most of whom were on antiviral treatment; 36-month study time was available for 154 subjects. The mean CD4+ cell count was 634 cells/mm3 in HIV-monoinfected patients and 606 cells/mm3 in coinfected patients. No difference in LS was found between patients with detectable or undetectable pHIV in either the 12- or the 36-month study period before transient elastography. The mean LS was higher in HIV/HCV coinfected patients (P<0.0001) than in the HIV-monoinfected subjects; lkpa was positively correlated with HCV coinfection (P<0.0001) and aspartate aminotransferase levels (P<0.0001). Detectable pHIV failed to reach significance. Eight HIV-monoinfected patients had a predicted LS measurement lower than the observed one, while eight patients had the opposite result. Conclusion LS was not correlated with ongoing HIV replication during the 12- and 36-month study periods in immunocompetent HIV-monoinfected and HIV/HCV-coinfected patients.
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Affiliation(s)
- Saverio Giuseppe Parisi
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
| | - Monica Basso
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
| | - Carlo Mengoli
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
| | - Renzo Scaggiante
- Infectious Disease Unit, Padova Hospital, Padova (Renzo Scaggiante, Marzia Maria Franzetti, Anna Maria Cattelan), Italy
| | - Samantha Andreis
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
| | - Marzia Maria Franzetti
- Infectious Disease Unit, Padova Hospital, Padova (Renzo Scaggiante, Marzia Maria Franzetti, Anna Maria Cattelan), Italy
| | - Anna Maria Cattelan
- Infectious Disease Unit, Padova Hospital, Padova (Renzo Scaggiante, Marzia Maria Franzetti, Anna Maria Cattelan), Italy
| | - Daniela Zago
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
| | - Mario Cruciani
- Center of Diffusive Diseases, ULSS 20, Verona (Mario Cruciani), Italy
| | - Massimo Andreoni
- Clinical Infectious Diseases, Tor Vergata University of Rome, Rome (Massimo Andreoni), Italy
| | - Sara Piovesan
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
| | - Giorgio Palù
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
| | - Alfredo Alberti
- Department of Molecular Medicine, University of Padova, Padova (Saverio Giuseppe Parisi, Monica Basso, Carlo Mengoli, Samantha Andreis, Daniela Zago, Sara Piovesan, Giorgio Palù, Alfredo Alberti), Italy
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Wyles D, Saag M, Viani RM, Lalezari J, Adeyemi O, Bhatti L, Khatri A, King JR, Hu YB, Trinh R, Shulman NS, Ruane P. TURQUOISE-I Part 1b: Ombitasvir/Paritaprevir/Ritonavir and Dasabuvir with Ribavirin for Hepatitis C Virus Infection in HIV-1 Coinfected Patients on Darunavir. J Infect Dis 2017; 215:599-605. [PMID: 28329334 DOI: 10.1093/infdis/jiw597] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 01/09/2017] [Indexed: 02/04/2023] Open
Abstract
Background Ombitasvir/paritaprevir/ritonavir with dasabuvir (OBV/PTV/r + DSV) ± ribavirin (RBV) is approved for hepatitis C virus (HCV) genotype 1 (GT1) treatment in HIV-1 coinfected patients. In healthy controls, coadministration of OBV/PTV/r + DSV + darunavir (DRV) lowered DRV trough concentration (Ctrough) levels. To assess the clinical significance of this change, TURQUOISE-I, Part 1b, evaluated the efficacy and safety of OBV/PTV/r + DSV + RBV in coinfected patients on stable, DRV-containing antiretroviral therapy (ART). Methods Patients were HCV treatment-naive or interferon-experienced, had CD4+ lymphocyte count ≥200 cells/µL or ≥14%, and plasma HIV-1 RNA suppression on once-daily (QD) DRV-containing ART at screening. Patients were randomized to maintain DRV 800 mg QD or switch to twice-daily (BID) DRV 600 mg; all received OBV/PTV/r + DSV + RBV for 12 weeks. Results Twenty-two patients were enrolled and achieved SVR12. No adverse events led to discontinuation. Coadministration had minimal impact on DRV maximum observed plasma concentration and area under the curve; DRV Ctrough levels were slightly lower with DRV QD and BID. No patient experienced plasma HIV-1 RNA >200 copies/mL during treatment. Conclusions HCV GT1/HIV-1 coinfected patients on stable DRV-containing ART achieved 100% SVR12 while maintaining plasma HIV-1 RNA suppression. Despite DRV exposure changes, episodes of intermittent HIV-1 viremia were infrequent.
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Affiliation(s)
- David Wyles
- University of Colorado School of Medicine, Denver, USA
| | - Michael Saag
- Center for AIDS Research, University of Alabama, Birmingham, USA
| | | | | | | | - Laveeza Bhatti
- AIDS Healthcare Foundation, Beverly Hills, California, USA
| | | | | | - Yiran B Hu
- AbbVie Inc, North Chicago, Illinois, USA
| | | | | | - Peter Ruane
- Ruane Medical & Liver Health Institute, Los Angeles, California, USA
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Smith DRM, Mideo N. Modelling the evolution of HIV-1 virulence in response to imperfect therapy and prophylaxis. Evol Appl 2017; 10:297-309. [PMID: 28250813 PMCID: PMC5322411 DOI: 10.1111/eva.12458] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 12/15/2016] [Indexed: 12/11/2022] Open
Abstract
Average HIV-1 virulence appears to have evolved in different directions in different host populations since antiretroviral therapy first became available, and models predict that HIV drugs can select for either higher or lower virulence, depending on how treatment is administered. However, HIV virulence evolution in response to "leaky" therapy (treatment that imperfectly suppresses viral replication) and the use of preventive drugs (pre-exposure prophylaxis) has not been explored. Using adaptive dynamics, we show that higher virulence can evolve when antiretroviral therapy is imperfectly effective and that this evolution erodes some of the long-term clinical and epidemiological benefits of HIV treatment. The introduction of pre-exposure prophylaxis greatly reduces infection prevalence, but can further amplify virulence evolution when it, too, is leaky. Increasing the uptake rate of these imperfect interventions increases selection for higher virulence and can lead to counterintuitive increases in infection prevalence in some scenarios. Although populations almost always fare better with access to interventions than without, untreated individuals could experience particularly poor clinical outcomes when virulence evolves. These findings predict that antiretroviral drugs may have underappreciated evolutionary consequences, but that maximizing drug efficacy can prevent this evolutionary response. We suggest that HIV virulence evolution should be closely monitored as access to interventions continues to improve.
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Affiliation(s)
- David R. M. Smith
- Department of Ecology and Evolutionary BiologyUniversity of TorontoTorontoONCanada
| | - Nicole Mideo
- Department of Ecology and Evolutionary BiologyUniversity of TorontoTorontoONCanada
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Fidler S, Olson AD, Bucher HC, Fox J, Thornhill J, Morrison C, Muga R, Phillips A, Frater J, Porter K. Virological Blips and Predictors of Post Treatment Viral Control After Stopping ART Started in Primary HIV Infection. J Acquir Immune Defic Syndr 2017; 74:126-133. [PMID: 27846036 PMCID: PMC5228612 DOI: 10.1097/qai.0000000000001220] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 10/12/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND Few individuals commencing antiretroviral therapy (ART) in primary HIV infection (PHI) maintain undetectable viremia after treatment cessation. Associated factors remain unclear given the importance of the phenomenon to cure research. METHODS Using CASCADE data of seroconverters starting ART in PHI (≤6 months from seroconversion), we estimated proportions experiencing viral blips (>400 copies followed by <400 copies HIV-RNA/mL without alteration of regimen) while on ART. We used Cox models to examine the association between time from ART stop to loss of control (2 consecutive measurements >1000 copies per milliliter) and magnitude and frequency of blips while on ART, time from seroconversion to ART, time on ART, adjusting for mean number of HIV-RNA measurements/year while on ART, and other confounders. RESULTS Seven hundred seventy-eight seroconverters started ART in PHI with ≥3 HIV-RNA measurements. Median interquartile range (IQR) ART duration was 16.2 (8.0-35.9) months, within which we observed 13% with ≥1 blip. Of 228 who stopped ART, 119 rebounded; time to loss of control was associated with longer interval between seroconversion and ART initiation [hazard ratio (HR) = 1.16 per month; 1.04, 1.28], and blips while on ART (HR = 1.71 per blip; 95% confidence interval = 0.94 to 3.10). Longer time on ART (HR = 0.84 per additional month; 0.76, 0.92) was associated with lower risk of losing control. Of 228 stopping ART, 22 (10%) maintained post treatment control (PTC), ie, HIV-RNA <50 copies per milliliter ≥24 months after ART cessation. CONCLUSION HIV viral blips on therapy are associated with subsequent viral rebound on stopping ART among individuals treated in PHI. Longer duration on ART is associated with a greater chance of PTC.
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Affiliation(s)
- Sarah Fidler
- Department of Genitourinary Medicine and Infectious Disease, Imperial College, London, United Kingdom
| | | | - Heiner C. Bucher
- Medical Research Council Clinical Trials Unit at University College London, London, UK. Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland
| | - Julie Fox
- Guys and St Thomas Hospital NHS Trust, London, United Kingdom
| | - John Thornhill
- Department of Genitourinary Medicine and Infectious Disease, Imperial College, London, United Kingdom
| | | | - Roberto Muga
- Department of Internal Medicine, Hospital Universitari Germans Trias i Pujol, Badalona, Spain; and
| | | | - John Frater
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, Oxford University, United Kingdom; Oxford Martin School, Oxford, United Kingdom; Oxford NIHR Biomedical Research Centre, Oxford, United Kingdom
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Porter DP, Kulkarni R, Garner W, Miller MD, White KL. Viral blips were infrequent in treatment-naive adults treated with rilpivirine/emtricitabine/tenofovir DF or efavirenz/emtricitabine/tenofovir DF through 96 weeks. Antivir Ther 2017; 22:495-502. [PMID: 28091393 DOI: 10.3851/imp3128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND The clinical impact of transient episodes of HIV viraemia (viral blips) on virological failure and resistance development is not fully understood. Here we investigated the blip frequency and virological outcomes of HIV-1-infected subjects experiencing viral blips among treatment-naive subjects initiating therapy on rilpivirine (RPV)/emtricitabine (FTC)/tenofovir disoproxil fumarate (TDF) or efavirenz (EFV)/FTC/TDF through 96 weeks of treatment. METHODS Subjects treated with at least one dose of study drug and with at least one post-baseline HIV-1 RNA value were included in this analysis. All on-drug HIV-1 RNA data points and FDA snapshot outcome data through week 96 were utilized. A viral blip was defined as after achieving confirmed suppression (two consecutive HIV-1 RNA values <50 copies/ml), any HIV-1 RNA value ≥50 copies/ml preceded and followed by HIV-1 RNA <50 copies/ml. RESULTS Of the 717 subjects with confirmed suppression, 67 (9.3%) experienced ≥1 blip through week 96 with similar blip frequencies occurring in both treatment arms (10.7% RPV/FTC/TDF versus 8.0% EFV/FTC/TDF; P=0.25). A significantly higher proportion of subjects with baseline HIV-1 RNA >100,000 copies/ml experienced blips compared to subjects with baseline HIV-1 RNA ≤100,000 copies/ml and this was observed in both arms. Of 72 total blip events, 61 (85%) were low-level (50-199 copies/ml). Overall, among subjects with blips, 79% were virological successes at week 96, similar to those subjects without blips (83%; P=0.50). More subjects with blips ≥200 copies/ml experienced virological failure compared to subjects with blips <200 copies/ml (36.4% versus 7.1%; P=0.02). CONCLUSIONS Viral blips were infrequent and similar among subjects treated with RPV/FTC/TDF or EFV/FTC/TDF. Most blips were low-level and most subjects with blips remained virologically suppressed through week 96 without experiencing virological failure.
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Nazeri Rad N, Lawless JF. Estimation of state occupancy probabilities in multistate models with dependent intermittent observation, with application to HIV viral rebounds. Stat Med 2016; 36:1256-1271. [PMID: 27896823 DOI: 10.1002/sim.7189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 11/01/2016] [Accepted: 11/02/2016] [Indexed: 11/06/2022]
Abstract
In follow-up studies on chronic disease cohorts, individuals are often observed at irregular visit times that may be related to their previous disease history and other factors. This can produce bias in standard methods of estimation. Working in the context of multistate models, we consider a method of nonparametric estimation for state occupancy probabilities that adjusts for dependent follow-up through the use of inverse-intensity-of-visit weighted estimating functions and smoothing. The methodology is applied to the estimation of viral rebound probabilities in the Canadian Observational Cohort on HIV-positive persons. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- N Nazeri Rad
- Prosserman Centre for Health Research, Lunenfeld-Tanenbaum Research Institute, 60 Murray Street, Toronto, M5T 3L9, ON, Canada
| | - J F Lawless
- Department of Statistics and Actuarial Science, University of Waterloo, 200 University Avenue West, Waterloo, N2L 3G1, ON, Canada
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Myer L, Phillips TK, McIntyre JA, Hsiao NY, Petro G, Zerbe A, Ramjith J, Bekker LG, Abrams EJ. HIV viraemia and mother-to-child transmission risk after antiretroviral therapy initiation in pregnancy in Cape Town, South Africa. HIV Med 2016; 18:80-88. [PMID: 27353189 DOI: 10.1111/hiv.12397] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Maternal HIV viral load (VL) drives mother-to-child HIV transmission (MTCT) risk but there are few data from sub-Saharan Africa, where most MTCT occurs. We investigated VL changes during pregnancy and MTCT following antiretroviral therapy (ART) initiation in Cape Town, South Africa. METHODS We conducted a prospective study of HIV-infected women initiating ART within routine antenatal services in a primary care setting. VL measurements were taken before ART initiation and up to three more times within 7 days postpartum. Analyses examined VL changes over time, viral suppression (VS) at delivery, and early MTCT based on polymerase chain reaction (PCR) testing up to 8 weeks of age. RESULTS A total of 620 ART-eligible HIV-infected pregnant women initiated ART, with 2425 VL measurements by delivery (median gestation at initiation, 20 weeks; median pre-ART VL, 4.0 log10 HIV-1 RNA copies/mL; median time on ART before delivery, 118 days). At delivery, 91% and 73% of women had VL ≤ 1000 and ≤ 50 copies/mL, respectively. VS was strongly predicted by time on therapy and pre-ART VL. The risk of early MTCT was strongly associated with delivery VL, with risks of 0.25, 2.0 and 8.5% among women with VL < 50, 50-1000 and > 1000 copies/mL at delivery, respectively (P < 0.001). CONCLUSIONS High rates of VS at delivery and low rates of MTCT can be achieved in a routine care setting in sub-Saharan Africa, indicating the effectiveness of currently recommended ART regimens. Women initiating ART late in pregnancy and with high VL appear substantially less likely to achieve VS and require targeted research and programmatic attention.
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Affiliation(s)
- L Myer
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - T K Phillips
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - J A McIntyre
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa.,Anova Health Institute, Johannesburg, South Africa
| | - N-Y Hsiao
- Division of Medical Virology, University of Cape Town & National Health Laboratory Services, Cape Town, South Africa
| | - G Petro
- Department of Obstetrics & Gynaecology, University of Cape Town, Cape Town, South Africa
| | - A Zerbe
- ICAP, Columbia University Mailman School of Public Health, New York, NY, USA
| | - J Ramjith
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, Cape Town, South Africa
| | - L-G Bekker
- Desmond Tutu HIV Centre, Institute of Infectious Diseases & Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - E J Abrams
- ICAP, Columbia University Mailman School of Public Health, New York, NY, USA.,College of Physicians & Surgeons, Columbia University, New York, NY, USA
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