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Thornhill JP, Fox J, Martin GE, Hall R, Lwanga J, Lewis H, Brown H, Robinson N, Kuldanek K, Kinloch S, Nwokolo N, Whitlock G, Fidler S, Frater J. Rapid antiretroviral therapy in primary HIV-1 infection enhances immune recovery. AIDS 2024; 38:679-688. [PMID: 38133660 DOI: 10.1097/qad.0000000000003825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
OBJECTIVE We present findings from a large cohort of individuals treated during primary HIV infection (PHI) and examine the impact of time from HIV-1 acquisition to antiretroviral therapy (ART) initiation on clinical outcomes. We also examine the temporal changes in the demographics of individuals presenting with PHI to inform HIV-1 prevention strategies. METHODS Individuals who fulfilled the criteria of PHI and started ART within 3 months of confirmed HIV-1 diagnosis were enrolled between 2009 and 2020. Baseline demographics of those diagnosed between 2009 and 2015 (before preexposure prophylaxis (PrEP) and universal ART availability) and 2015-2020 (post-PrEP and universal ART availability) were compared. We examined the factors associated with immune recovery and time to viral suppression. RESULTS Two hundred four individuals enrolled, 144 from 2009 to 2015 and 90 from 2015 to 2020; median follow-up was 33 months. At PHI, the median age was 33 years; 4% were women, 39% were UK-born, and 84% were MSM. The proportion of UK-born individuals was 47% in 2009-2015, compared with 29% in 2015-2020. There was an association between earlier ART initiation after PHI diagnosis and increased immune recovery; each day that ART was delayed was associated with a lower likelihood of achieving a CD4 + cell count more than 900 cells/μl [hazard ratio 0.99 (95% confidence interval, 95% CI 0.98-0.99), P = 0.02) and CD4/CD8 more than 1.0 (hazard ratio 0.98 (95% CI 0.97-0.99). CONCLUSION Early initiation of ART at PHI diagnosis is associated with enhanced immune recovery, providing further evidence to support immediate ART in the context of PHI. Non-UK-born MSM accounts for an increasing proportion of those with primary infection; UK HIV-1 prevention strategies should better target this group.
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Affiliation(s)
- John Patrick Thornhill
- Department of Infectious Diseases, Imperial College
- Imperial College National Institute of Health Research Biomedical Research Centre
- Imperial College NHS Trust
| | - Julie Fox
- Department of Genitourinary Medicine and Infectious Disease, Guys and St Thomas' NHS Trust and Kings College London, London
| | | | - Rebecca Hall
- Department of Infectious Diseases, Imperial College
- Imperial College National Institute of Health Research Biomedical Research Centre
- Imperial College NHS Trust
| | - Julianne Lwanga
- Department of Genitourinary Medicine and Infectious Disease, Guys and St Thomas' NHS Trust and Kings College London, London
| | - Heather Lewis
- Department of Infectious Diseases, Imperial College
- Imperial College National Institute of Health Research Biomedical Research Centre
| | - Helen Brown
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, University of Oxford
- Oxford National Institute of Health Research Biomedical Research Centre, Oxford
| | - Nicola Robinson
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, University of Oxford
- Oxford National Institute of Health Research Biomedical Research Centre, Oxford
| | - Kristen Kuldanek
- Department of Infectious Diseases, Imperial College
- Imperial College National Institute of Health Research Biomedical Research Centre
| | | | - Nneka Nwokolo
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Gary Whitlock
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Sarah Fidler
- Department of Infectious Diseases, Imperial College
- Imperial College National Institute of Health Research Biomedical Research Centre
- Imperial College NHS Trust
| | - John Frater
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, University of Oxford
- Oxford National Institute of Health Research Biomedical Research Centre, Oxford
- Royal Free Hospital
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Kong CL, Kelly NK, Sundararajan M, Rathinam S, Gonzales JA, Thundikandy R, Vedhanayaki R, Kanakath A, Murugan B, Doan T, Goldstein D, Al-Dhibi HA, Acharya NR. Comparison of CD4 Counts with Mycophenolate Mofetil versus Methotrexate from the First-line Antimetabolites as Steroid-sparing Treatment (FAST) Uveitis Trial. Ocul Immunol Inflamm 2022; 30:198-202. [PMID: 32779952 PMCID: PMC7876156 DOI: 10.1080/09273948.2020.1774906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
PURPOSE Sub-analysis of the FAST Trial comparing change in CD4 (∆CD4) from baseline through 12 months in uveitis patients treated with mycophenolate mofetil (MMF) and methotrexate (MTX). METHODS Patients were randomly allocated to 1.5 g twice daily MMF or 25 mg weekly MTX. Individuals with CD4 counts at baseline, 6 months (or treatment failure prior), and 12 months (or treatment failure between 6 and 12 months) were included. The association between treatment and ∆CD4 (cells/μL) was analyzed using multivariable linear regression. RESULTS There was no significant difference in ∆CD4 between MMF and MTX at 6 months (-31.7 cells/μL for MMF compared to MTX; 95% CI: -358.2 to 294.8, P = .85) and 12 months (-78.3 cells/μL for MMF compared to MTX; 95% CI: -468.0 to 311.3; P = .69). CONCLUSION There was no significant difference in ∆CD4 between MMF and MTX from baseline to 12 months, suggesting that MMF does not confer additional risk of CD4 lymphopenia in uveitic patients.ClinicalTrials.gov Identifier: NCT01829295.
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Affiliation(s)
- Christina L. Kong
- F.I. Proctor Foundation, University of California, San Francisco, San Francisco, California, USA
| | - Nicole K Kelly
- F.I. Proctor Foundation, University of California, San Francisco, San Francisco, California, USA
| | - Miel Sundararajan
- Department of Ophthalmology, University of California, San Francisco, San Francisco, California, USA
| | - S.R Rathinam
- Uvea Services, Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology, Madurai, India
| | - John A. Gonzales
- F.I. Proctor Foundation, University of California, San Francisco, San Francisco, California, USA,Department of Ophthalmology, University of California, San Francisco, San Francisco, California, USA
| | - Radhika Thundikandy
- Uvea Services, Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology, Madurai, India
| | - Rajesh Vedhanayaki
- Uvea Services, Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology, Madurai, India
| | - Anuradha Kanakath
- Uvea Services, Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology, Coimbatore, India
| | - Bala Murugan
- Uvea Services, Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology, Pondicherry, India
| | - Thuy Doan
- F.I. Proctor Foundation, University of California, San Francisco, San Francisco, California, USA,Department of Ophthalmology, University of California, San Francisco, San Francisco, California, USA
| | - Debra Goldstein
- Department of Ophthalmology, Northwestern University, Chicago, Illinois, USA
| | - Hassan A. Al-Dhibi
- Division of Vitreoretinal Surgery and Uveitis, King Khaled Eye Specialist Hospital, Riyadh, Kingdom of Saudi Arabia
| | - Nisha R. Acharya
- F.I. Proctor Foundation, University of California, San Francisco, San Francisco, California, USA,Department of Ophthalmology, University of California, San Francisco, San Francisco, California, USA,Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, USA
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Klein MB, Young J, Dunn D, Ledergerber B, Sabin C, Cozzi-Lepri A, Dabis F, Harrigan R, Tan DH, Walmsley S, Gill J, Cooper C, Scherrer AU, Mocroft A, Hogg RS, Smaill F. The effects of HIV-1 subtype and ethnicity on the rate of CD4 cell count decline in patients naive to antiretroviral therapy: a Canadian-European collaborative retrospective cohort study. CMAJ Open 2014; 2:E318-29. [PMID: 25485259 PMCID: PMC4251518 DOI: 10.9778/cmajo.20140017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Ethnic differences have the potential to confound associations between HIV-1 subtype and immunologic progression. We compared declines in CD4 cell counts during untreated infection for the most prevalent HIV-1 subtypes, focusing on distinguishing between the effects of viral subtype and ethnicity. METHODS We combined data from 4 European and 6 Canadian cohorts, selecting adults in the stable chronic phase of untreated HIV infection. We estimated the change in square root CD4 cell count over time for subtypes and ethnicities using mixed models, adjusting for covariates selected for their potential effect on initial CD4 cell count or its decline. RESULTS Data from 9772 patients were analyzed, contributing 79 175 measurements of CD4 cell count and 24 157 person-years of follow-up. Overall, there were no appreciable differences in CD4 cell count decline for viral subtypes A, CRF01_AE, CRF02_AG, C and G compared with viral subtype B; whereas the decline in CD4 cell count in patients of African ancestry was considerably slower than in patients of other ethnicity. When ethnic groups were studied separately, there was evidence for slower declines in CD4 cell count in viral subtypes C, and possibly A and G, compared with viral subtype B in patients of African ancestry but not among patients of other ethnicities, suggesting an interaction between subtype and ethnicity. INTERPRETATION Ethnicity is a major determinant of CD4 cell count decline; viral subtype differences may have existed but were small compared with the effect of ethnicity and were most apparent in patients of African ancestry. In developing countries, slower CD4 cell count declines among individuals of African descent may translate to a longer asymptomatic phase and increase the opportunity for HIV transmission.
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Affiliation(s)
- Marina B Klein
- Division of Infectious Diseases/Chronic Viral Illness Service, Department of Medicine, Royal Victoria Hospital, McGill University Health Centre, Montréal, Que
| | - Jim Young
- Division of Infectious Diseases/Chronic Viral Illness Service, Department of Medicine, Royal Victoria Hospital, McGill University Health Centre, Montréal, Que. ; Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland
| | - David Dunn
- Medical Research Council Clinical Trials Unit, London, UK
| | - Bruno Ledergerber
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Caroline Sabin
- Research Department of Infection and Population Health, University College London, London, UK
| | - Alessandro Cozzi-Lepri
- Research Department of Infection and Population Health, University College London, London, UK
| | - Francois Dabis
- Centre du recherche INSERM U897 - Epidémiologie-Biostatistique, Institut de Santé Publique, d'Epidémioloie et de Développement (ISPED) Université Bordeaux, Bordeaux, France
| | - Richard Harrigan
- Faculty of Health Sciences, Simon Fraser University, Vancouver, BC
| | - Darrell H Tan
- Division of Infectious Diseases, St. Michael's Hospital, Toronto, Ont
| | - Sharon Walmsley
- University Health Network, University of Toronto, Toronto, Ont
| | - John Gill
- Southern Alberta HIV Clinic, Calgary, Alta
| | | | - Alexandra U Scherrer
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Amanda Mocroft
- Research Department of Infection and Population Health, University College London, London, UK
| | - Robert S Hogg
- Faculty of Health Sciences, Simon Fraser University, Vancouver, BC. ; Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC
| | - Fiona Smaill
- Department of Medicine, McMaster University, Hamilton, Ont
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Do HIV-1 non-B subtypes differentially impact resistance mutations and clinical disease progression in treated populations? Evidence from a systematic review. J Int AIDS Soc 2014; 17:18944. [PMID: 24998532 PMCID: PMC4083185 DOI: 10.7448/ias.17.1.18944] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 04/04/2014] [Accepted: 04/15/2014] [Indexed: 12/31/2022] Open
Abstract
There are 31 million adults living with HIV-1 non-B subtypes globally, and about 10 million are on antiretroviral therapy (ART). Global evidence to guide clinical practice on ART response in HIV-1 non-B subtypes remains limited. We systematically searched 11 databases for the period 1996 to 2013 for evidence. Outcomes documented included time to development of AIDS and/or death, resistance mutations, opportunistic infections, and changes in CD4 cell counts and viral load. A lack of consistent reporting of all clinical end points precluded a meta-analysis. In sum, genetic diversity that precipitated differences in disease progression in ART-naïve populations was minimized in ART-experienced populations, although variability in resistance mutations persisted across non-B subtypes. To improve the quality of patient care in global settings, recording HIV genotypes at baseline and at virologic failure with targeted non-B subtype-based point-of-care resistance assays and timely phasing out of resistance-inducing ART regimens is recommended.
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Young J, Klein MB. Virus subtype, ethnicity and CD4 decline in untreated HIV infection. Future Virol 2014. [DOI: 10.2217/fvl.14.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Jim Young
- Department of Medicine, Division of Infectious Diseases/Chronic Viral Illness Service, Royal Victoria Hospital, McGill University Health Centre, Montreal, QC, Canada
- Basel Institute for Epidemiology & Biostatistics, University Hospital Basel, Switzerland
| | - Marina B Klein
- Department of Medicine, Division of Infectious Diseases/Chronic Viral Illness Service, Royal Victoria Hospital, McGill University Health Centre, Montreal, QC, Canada
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