Predictors of CD4 cell recovery following initiation of antiretroviral therapy among HIV‐1 positive patients with well‐estimated dates of seroconversion

Objectives To investigate factors that predict speed of recovery and long‐term CD4 cell count in HIV‐1 seroconverters initiating combination antiretroviral therapy (cART), and to quantify the influence of very early treatment initiation. We make use of all pre‐treatment CD4 counts, because analyses...

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Published inHIV medicine Vol. 19; no. 3; pp. 184 - 194
Main Authors Stirrup, OT, Copas, AJ, Phillips, AN, Gill, MJ, Geskus, RB, Touloumi, G, Young, J, Bucher, HC, Babiker, AG, Kelleher, Tony, Cooper, David, Grey, Pat, Finlayson, Robert, Bloch, Mark, Ramacciotti, Tim, Gelgor, Linda, Smith, Don, Zangerle, Robert, Gill, John, Lutsar, Irja, Chêne, Geneviève, Dabis, Francois, Thiebaut, Rodolphe, Costagliola, Dominique, Guiguet, Marguerite, Vanhems, Philippe, Chaix, Marie‐Laure, Ghosn, Jade, Meyer, Laurence, Boufassa, Faroudy, Hamouda, Osamah, Meixenberger, Karolin, Bannert, Norbert, Bartmeyer, Barbara, Antoniadou, Anastasia, Chrysos, Georgios, Daikos, Georgios L., Pantazis, Nikos, Katsarou, Olga, Rezza, Giovanni, Dorrucci, Maria, Monforte, Antonella, Luca, Andrea, Prins, Maria, Geskus, Ronald, Helm, Jannie, Schuitemaker, Hanneke, Sannes, Mette, Brubakk, Oddbjorn, Kran, Anne‐Marte, Rosinska, Magdalena, Muga, Roberto, Tor, Jordi, Olalla, Patricia, Cayla, Joan, Amo, Julia, Moreno, Santiago, Monge, Susana, Romero, Jorge, Pérez‐Hoyos, Santiago, Sönnerborg, Anders, Bucher, C, Günthard, Huldrych, Scherrer, Alexandra, Malyuta, Ruslan, Murphy, Gary, Porter, Kholoud, Johnson, Anne, Babiker, Abdel, Pillay, Deenan, Morrison, Charles, Salata, Robert, Mugerwa, Roy, Chipato, Tsungai, Price, Matt A., Gilmour, Jill, Kamali, Anatoli, Karita, Etienne
Format Journal Article
LanguageEnglish
Published England Wiley Subscription Services, Inc 01.03.2018
John Wiley and Sons Inc
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Abstract Objectives To investigate factors that predict speed of recovery and long‐term CD4 cell count in HIV‐1 seroconverters initiating combination antiretroviral therapy (cART), and to quantify the influence of very early treatment initiation. We make use of all pre‐treatment CD4 counts, because analyses using only a single observation at initiation may be subject to biases. Methods We used data from the CASCADE (Concerted Action on SeroConversion to AIDS and Death in Europe) multinational cohort collaboration of HIV‐1 seroconverters. We analysed pre‐ and post‐treatment data of patients with seroconversion dates estimated January 2003–March 2014 (n = 7600 for primary analysis) using a statistical model in which the characteristics of recovery in CD4 counts are determined by multiple predictive factors. Secondary analyses were performed incorporating uncertainty in the exact timing of seroconversion to allow more precise estimation of the benefit of very early treatment initiation. Results ‘True’ CD4 count at cART initiation was the strongest predictor of CD4 count beyond 3 years on cART. Allowing for lack of complete certainty in the date of seroconversion, CD4 recovery was more rapid for patients in whom treatment was initiated within 4 months. For a given CD4 count, higher viral load (VL) at initiation was strongly associated with higher post‐treatment CD4 recovery. For other patient and drug characteristics, associations with recovery were statistically significant but small in magnitude. Conclusions CD4 count at cART initiation is the most important factor in predicting post‐treatment recovery, but VL provides substantial additional information. If cART is initiated in the first 4 months following seroconversion, recovery of CD4 counts appears to be more rapid.
AbstractList To investigate factors that predict speed of recovery and long-term CD4 cell count in HIV-1 seroconverters initiating combination antiretroviral therapy (cART), and to quantify the influence of very early treatment initiation. We make use of all pre-treatment CD4 counts, because analyses using only a single observation at initiation may be subject to biases.OBJECTIVESTo investigate factors that predict speed of recovery and long-term CD4 cell count in HIV-1 seroconverters initiating combination antiretroviral therapy (cART), and to quantify the influence of very early treatment initiation. We make use of all pre-treatment CD4 counts, because analyses using only a single observation at initiation may be subject to biases.We used data from the CASCADE (Concerted Action on SeroConversion to AIDS and Death in Europe) multinational cohort collaboration of HIV-1 seroconverters. We analysed pre- and post-treatment data of patients with seroconversion dates estimated January 2003-March 2014 (n = 7600 for primary analysis) using a statistical model in which the characteristics of recovery in CD4 counts are determined by multiple predictive factors. Secondary analyses were performed incorporating uncertainty in the exact timing of seroconversion to allow more precise estimation of the benefit of very early treatment initiation.METHODSWe used data from the CASCADE (Concerted Action on SeroConversion to AIDS and Death in Europe) multinational cohort collaboration of HIV-1 seroconverters. We analysed pre- and post-treatment data of patients with seroconversion dates estimated January 2003-March 2014 (n = 7600 for primary analysis) using a statistical model in which the characteristics of recovery in CD4 counts are determined by multiple predictive factors. Secondary analyses were performed incorporating uncertainty in the exact timing of seroconversion to allow more precise estimation of the benefit of very early treatment initiation.'True' CD4 count at cART initiation was the strongest predictor of CD4 count beyond 3 years on cART. Allowing for lack of complete certainty in the date of seroconversion, CD4 recovery was more rapid for patients in whom treatment was initiated within 4 months. For a given CD4 count, higher viral load (VL) at initiation was strongly associated with higher post-treatment CD4 recovery. For other patient and drug characteristics, associations with recovery were statistically significant but small in magnitude.RESULTS'True' CD4 count at cART initiation was the strongest predictor of CD4 count beyond 3 years on cART. Allowing for lack of complete certainty in the date of seroconversion, CD4 recovery was more rapid for patients in whom treatment was initiated within 4 months. For a given CD4 count, higher viral load (VL) at initiation was strongly associated with higher post-treatment CD4 recovery. For other patient and drug characteristics, associations with recovery were statistically significant but small in magnitude.CD4 count at cART initiation is the most important factor in predicting post-treatment recovery, but VL provides substantial additional information. If cART is initiated in the first 4 months following seroconversion, recovery of CD4 counts appears to be more rapid.CONCLUSIONSCD4 count at cART initiation is the most important factor in predicting post-treatment recovery, but VL provides substantial additional information. If cART is initiated in the first 4 months following seroconversion, recovery of CD4 counts appears to be more rapid.
ObjectivesTo investigate factors that predict speed of recovery and long‐term CD4 cell count in HIV‐1 seroconverters initiating combination antiretroviral therapy (cART), and to quantify the influence of very early treatment initiation. We make use of all pre‐treatment CD4 counts, because analyses using only a single observation at initiation may be subject to biases.MethodsWe used data from the CASCADE (Concerted Action on SeroConversion to AIDS and Death in Europe) multinational cohort collaboration of HIV‐1 seroconverters. We analysed pre‐ and post‐treatment data of patients with seroconversion dates estimated January 2003–March 2014 (n = 7600 for primary analysis) using a statistical model in which the characteristics of recovery in CD4 counts are determined by multiple predictive factors. Secondary analyses were performed incorporating uncertainty in the exact timing of seroconversion to allow more precise estimation of the benefit of very early treatment initiation.Results‘True’ CD4 count at cART initiation was the strongest predictor of CD4 count beyond 3 years on cART. Allowing for lack of complete certainty in the date of seroconversion, CD4 recovery was more rapid for patients in whom treatment was initiated within 4 months. For a given CD4 count, higher viral load (VL) at initiation was strongly associated with higher post‐treatment CD4 recovery. For other patient and drug characteristics, associations with recovery were statistically significant but small in magnitude.ConclusionsCD4 count at cART initiation is the most important factor in predicting post‐treatment recovery, but VL provides substantial additional information. If cART is initiated in the first 4 months following seroconversion, recovery of CD4 counts appears to be more rapid.
Objectives To investigate factors that predict speed of recovery and long‐term CD4 cell count in HIV‐1 seroconverters initiating combination antiretroviral therapy (cART), and to quantify the influence of very early treatment initiation. We make use of all pre‐treatment CD4 counts, because analyses using only a single observation at initiation may be subject to biases. Methods We used data from the CASCADE (Concerted Action on SeroConversion to AIDS and Death in Europe) multinational cohort collaboration of HIV‐1 seroconverters. We analysed pre‐ and post‐treatment data of patients with seroconversion dates estimated January 2003–March 2014 (n = 7600 for primary analysis) using a statistical model in which the characteristics of recovery in CD4 counts are determined by multiple predictive factors. Secondary analyses were performed incorporating uncertainty in the exact timing of seroconversion to allow more precise estimation of the benefit of very early treatment initiation. Results ‘True’ CD4 count at cART initiation was the strongest predictor of CD4 count beyond 3 years on cART. Allowing for lack of complete certainty in the date of seroconversion, CD4 recovery was more rapid for patients in whom treatment was initiated within 4 months. For a given CD4 count, higher viral load (VL) at initiation was strongly associated with higher post‐treatment CD4 recovery. For other patient and drug characteristics, associations with recovery were statistically significant but small in magnitude. Conclusions CD4 count at cART initiation is the most important factor in predicting post‐treatment recovery, but VL provides substantial additional information. If cART is initiated in the first 4 months following seroconversion, recovery of CD4 counts appears to be more rapid.
To investigate factors that predict speed of recovery and long-term CD4 cell count in HIV-1 seroconverters initiating combination antiretroviral therapy (cART), and to quantify the influence of very early treatment initiation. We make use of all pre-treatment CD4 counts, because analyses using only a single observation at initiation may be subject to biases. We used data from the CASCADE (Concerted Action on SeroConversion to AIDS and Death in Europe) multinational cohort collaboration of HIV-1 seroconverters. We analysed pre- and post-treatment data of patients with seroconversion dates estimated January 2003-March 2014 (n = 7600 for primary analysis) using a statistical model in which the characteristics of recovery in CD4 counts are determined by multiple predictive factors. Secondary analyses were performed incorporating uncertainty in the exact timing of seroconversion to allow more precise estimation of the benefit of very early treatment initiation. 'True' CD4 count at cART initiation was the strongest predictor of CD4 count beyond 3 years on cART. Allowing for lack of complete certainty in the date of seroconversion, CD4 recovery was more rapid for patients in whom treatment was initiated within 4 months. For a given CD4 count, higher viral load (VL) at initiation was strongly associated with higher post-treatment CD4 recovery. For other patient and drug characteristics, associations with recovery were statistically significant but small in magnitude. CD4 count at cART initiation is the most important factor in predicting post-treatment recovery, but VL provides substantial additional information. If cART is initiated in the first 4 months following seroconversion, recovery of CD4 counts appears to be more rapid.
Author Ramacciotti, Tim
Sannes, Mette
Morrison, Charles
Pérez‐Hoyos, Santiago
Copas, AJ
Porter, Kholoud
Luca, Andrea
Chipato, Tsungai
Babiker, AG
Cayla, Joan
Stirrup, OT
Touloumi, G
Romero, Jorge
Boufassa, Faroudy
Monforte, Antonella
Chaix, Marie‐Laure
Sönnerborg, Anders
Costagliola, Dominique
Pillay, Deenan
Lutsar, Irja
Pantazis, Nikos
Kelleher, Tony
Tor, Jordi
Helm, Jannie
Meixenberger, Karolin
Kran, Anne‐Marte
Gill, MJ
Bannert, Norbert
Muga, Roberto
Amo, Julia
Guiguet, Marguerite
Salata, Robert
Gill, John
Dabis, Francois
Geskus, Ronald
Bucher, HC
Moreno, Santiago
Zangerle, Robert
Gilmour, Jill
Smith, Don
Bucher, C
Cooper, David
Olalla, Patricia
Phillips, AN
Scherrer, Alexandra
Finlayson, Robert
Monge, Susana
Geskus, RB
Antoniadou, Anastasia
Price, Matt A.
Ghosn, Jade
Chêne, Geneviève
Babiker, Abdel
Malyuta, Ruslan
Chrysos, Georgios
Schuitemaker, Hanneke
Karita, Etienne
Thiebaut, Rodolphe
Murphy, Gary
Katsarou, Olga
Rezza, Giovanni
Vanhems, Philippe
Hamouda, Osamah
Dorrucci, Maria
Johnson, Anne
Young, J
Bartmeyer, Barbara
Meyer, Laurence
Daikos, Georgios L.
AuthorAffiliation 3 Department of Medicine University of Calgary Calgary AB Canada
6 Oxford University Clinical Research Unit Wellcome Trust Major Overseas Programme Ho Chi Minh City Vietnam
4 Department of Clinical Epidemiology, Biostatistics and Bioinformatics Academic Medical Center (AMC) Amsterdam The Netherlands
8 Department of Hygiene, Epidemiology and Medical Statistics, Medical School National and Kapodistrian University of Athens Athens Greece
7 Nuffield Department of Clinical Medicine Centre for Tropical Medicine and Global Health University of Oxford Oxford UK
1 MRC Clinical Trials Unit University College London London UK
2 Research Department of Infection & Population Health University College London London UK
5 Department of Infectious Diseases Public Health Service of Amsterdam Amsterdam The Netherlands
9 Basel Institute for Clinical Epidemiology and Biostatistics University Hospital Basel and University of Basel Basel Switzerland
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BackLink https://www.ncbi.nlm.nih.gov/pubmed/29230953$$D View this record in MEDLINE/PubMed
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ContentType Journal Article
Contributor Ramacciotti, Tim
Sannes, Mette
Morrison, Charles
Porter, Kholoud
Luca, Andrea
Chipato, Tsungai
Cayla, Joan
Romero, Jorge
Boufassa, Faroudy
Monforte, Antonella
Sönnerborg, Anders
Costagliola, Dominique
Pillay, Deenan
Lutsar, Irja
Pantazis, Nikos
Kelleher, Tony
Tor, Jordi
Helm, Jannie
Meixenberger, Karolin
Bannert, Norbert
Muga, Roberto
Amo, Julia
Guiguet, Marguerite
Salata, Robert
Gill, John
Dabis, Francois
Geskus, Ronald
Moreno, Santiago
Zangerle, Robert
Gilmour, Jill
Smith, Don
Bucher, C
Daikos, Georgios L
Pérez-Hoyos, Santiago
Cooper, David
Olalla, Patricia
Scherrer, Alexandra
Finlayson, Robert
Monge, Susana
Antoniadou, Anastasia
Ghosn, Jade
Chêne, Geneviève
Babiker, Abdel
Malyuta, Ruslan
Chrysos, Georgios
Schuitemaker, Hanneke
Karita, Etienne
Chaix, Marie-Laure
Thiebaut, Rodolphe
Murphy, Gary
Katsarou, Olga
Rezza, Giovanni
Vanhems, Philippe
Hamouda, Osamah
Dorrucci, Maria
Johnson, Anne
Price, Matt A
Bartmeyer, Barbara
Meyer, Laurence
Gelgor, Linda
Kran, Anne-Marte
Brubakk, Oddbjorn
Kamali, Anatoli
Prins, Maria
Günthard, Huldrych
Grey, Pat
Bloch, M
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Copyright 2017 The Authors. published by John Wiley & Sons Ltd on behalf of British HIV Association
2017 The Authors. HIV Medicine published by John Wiley & Sons Ltd on behalf of British HIV Association.
HIV Medicine © 2018 British HIV Association
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Issue 3
Keywords CD4
ART
HIV
antiretroviral therapy
HAART
longitudinal data
mixed effects model
Language English
License Attribution
2017 The Authors. HIV Medicine published by John Wiley & Sons Ltd on behalf of British HIV Association.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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content type line 14
content type line 23
CASCADE Collaboration members are in appendix.
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Snippet Objectives To investigate factors that predict speed of recovery and long‐term CD4 cell count in HIV‐1 seroconverters initiating combination antiretroviral...
To investigate factors that predict speed of recovery and long-term CD4 cell count in HIV-1 seroconverters initiating combination antiretroviral therapy...
ObjectivesTo investigate factors that predict speed of recovery and long‐term CD4 cell count in HIV‐1 seroconverters initiating combination antiretroviral...
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SubjectTerms Acquired immune deficiency syndrome
AIDS
Anti-HIV Agents - therapeutic use
Antiretroviral agents
Antiretroviral drugs
Antiretroviral therapy
CD4
CD4 antigen
CD4 Lymphocyte Count
Drug therapy
Female
HAART
HIV
HIV Infections - drug therapy
HIV Infections - immunology
HIV-1 - immunology
Human immunodeficiency virus
Humans
longitudinal data
Male
Mathematical models
mixed effects model
Models, Statistical
Original Research
Patients
Seroconversion
Statistical analysis
Statistical models
Therapy
Treatment Outcome
Viral Load
Title Predictors of CD4 cell recovery following initiation of antiretroviral therapy among HIV‐1 positive patients with well‐estimated dates of seroconversion
URI https://onlinelibrary.wiley.com/doi/abs/10.1111%2Fhiv.12567
https://www.ncbi.nlm.nih.gov/pubmed/29230953
https://www.proquest.com/docview/2006684555
https://www.proquest.com/docview/1975999420
https://pubmed.ncbi.nlm.nih.gov/PMC5836945
Volume 19
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