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Public Library of Science, PLoS ONE, 1(9), p. e86719, 2014

DOI: 10.1371/journal.pone.0086719

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An Evaluation of HIV Elite Controller Definitions within a Large Seroconverter Cohort Collaboration

Journal article published in 2014 by Olson Ad, Ashley D. Olson, Laurence Meyer, Maria Prins, Rodolphe Thiebaut, Deepti Gurdasani ORCID, Marguerite Guiguet, Chaix Ml, Marie-Laure Chaix, Pauli Amornkul, Sandhu Ms, Abdel Babiker, Manjinder S. Sandhu, C. Giaquinto, Kholoud Porter and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

for C A S C A D E Collaboration in EuroCoord ; International audience ; Background: Understanding the mechanisms underlying viral control is highly relevant to vaccine studies and elite control (EC) of HIV infection. Although numerous definitions of EC exist, it is not clear which, if any, best identify this rare phenotype.Methods: We assessed a number of EC definitions used in the literature using CASCADE data of 25,692 HIV seroconverters. We estimated proportions maintaining EC of total ART-naïve follow-up time, and disease progression, comparing to non-EC. We also examined HIV-RNA and CD4 values and CD4 slope during EC and beyond (while ART naïve).Results: Most definitions classify ∼1% as ECs with median HIV-RNA 43–903 copies/ml and median CD4>500 cells/mm3. Beyond EC status, median HIV-RNA levels remained low, although often detectable, and CD4 values high but with strong evidence of decline for all definitions. Median % ART-naïve time as EC was ≥92% although overlap between definitions was low. EC definitions with consecutive HIV-RNA measurements 90% of measurements