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J Acquir Immune Defic Syndr. 2010 Dec 15;55(5):597-605. doi: 10.1097/QAI.0b013e3181f6d916.

Sustained long-term antiviral maintenance therapy in HCV/HIV-coinfected patients (SLAM-C).

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  • 1Department of Internal Medicine, University of Cincinnati, Cincinnati, OH, USA.



Hepatitis C virus (HCV)/HIV coinfection treatment is suboptimal with low sustained viral response rates to standard therapies. A multicenter randomized clinical trial designed to assess the efficacy/safety of pegylated interferon maintenance therapy was performed by the National Institutes of Health-funded AIDS Clinical Trials Group network.


HCV treatment-naive and nonresponding interferon-experienced subjects with confirmed HCV and HIV, CD4 >200 cells per cubic millimeter, and at least stage 1 fibrosis were enrolled and treated for 12 weeks with pegylated interferon alfa 2a 180 mcg per week (PEG) + weight-based ribavirin to determine response status. Nonresponder subjects (failure to clear HCV RNA or achieve 2-log drop) underwent liver biopsy and were randomized to receive full dose PEG or observation only for 72 weeks. Paired biopsies were evaluated by a central pathologist.


Three hundred thirty subjects were enrolled; median age was 48 years; 43% white, 37% black, non-Hispanic; 83% male; CD4+ 498 cells per cubic millimeter; 32% were interferon experienced; 74% had entry HIV RNA <50 copies per milliliter. early virologic responder was observed in 55.9% and 42.5% achieved complete Early Viral Response (cEVR). A planned interim analysis of occurred when 84 subjects were randomized. With data on 40 paired biopsies available, a safety monitoring board stopped the trial due to lack of fibrosis progression (median = 0 Metavir units/year) in the observation arm.


Lack of fibrotic progression in the control arm was unexpected and may represent a short-term PEG/ribavirin therapy effect, high levels of HIV viral suppression, and use of antiretroviral regimens that may be less toxic than prior generations of therapy.


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