Abstract
The aim of this retrospective, multicentre, observational study was to assess the durability, safety, immune recovery and effectiveness on viral suppression of antiretroviral therapy (ART) in a maraviroc (MVC)-based cohort. We collected clinical, demographical, immunological and virological parameters of adult HIV patients who were infected by CCR5-tropic virus and started an ART regimen containing MVC from 2005 to 2012. We created a longitudinal mixed model to assess the change over time of data. We enrolled 126 drug-experienced patients; the median duration of MVC treatment was 25 months. The probability of stopping ART at one year was 13.3%, and at three years was 27.3%. Statistically significant changes were observed for CD4+ cell count increase ( p < 0.001), HIV-RNA decrease ( p < 0.001) and total cholesterol decrease ( p = 0.005). Ninety-four patients (79.7%) had CD4 ≥ 200 cells/mm3 at baseline while nine of them reached this threshold at nine months (7.6%), 17 (13%) after nine months and six (5%) remained below 200 cells/mm3 at the end of the study. Overall, 114 patients (90.5%) achieved an HIV-RNA ≤ 50 cp/ml. A majority of patients maintained CD4 cell counts of ≥ 200 cells/mm3 and achieved an undetectable HIV viral load within three months. MVC-containing regimens are safe and appear to be a feasible therapeutic option for ART.
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