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  • Title: Hepatitis C virus (HCV) and human immunodeficiency virus (HIV) dynamics during HCV treatment in HCV/HIV coinfection.
    Author: Torriani FJ, Ribeiro RM, Gilbert TL, Schrenk UM, Clauson M, Pacheco DM, Perelson AS.
    Journal: J Infect Dis; 2003 Nov 15; 188(10):1498-507. PubMed ID: 14624375.
    Abstract:
    We studied hepatitis C virus (HCV) and human immunodeficiency virus (HIV) dynamics in 10 coinfected subjects in a trial of pegylated interferon-alpha2a (PEG-IFN) alone or combined with ribavirin (RBV), compared with IFN plus RBV for the treatment of HCV. Five subjects, 4 of whom were treated with PEG-IFN, achieved a sustained virological response, although it was delayed by >/=1 week in 3 subjects. The median treatment efficacy in blocking virion production was 99.7% in the PEG-IFN group and 60% with standard IFN. In 2 patients with detectable HIV loads before starting HCV study drugs, we observed a 1-log decrease in HIV RNA load. The estimated HCV virion half-life was longer in the HIV-coinfected subjects, which suggests that coinfection may contribute to a slower clearance of HCV. Although the early viral kinetics of coinfected subjects treated with PEG-IFN or IFN differ from those of singly infected subjects, the treatment response seems unaffected.
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