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  • Title: Pegylated interferon alpha 2b and ribavirin in HIV/hepatitis C virus-co-infected non-responders and relapsers to IFN-based therapy.
    Author: Myers RP, Benhamou Y, Bochet M, Thibault V, Mehri D, Poynard T.
    Journal: AIDS; 2004 Jan 02; 18(1):75-9. PubMed ID: 15090832.
    Abstract:
    BACKGROUND: Pegylated interferon alpha (PEG-IFN-alpha) and ribavirin is the most effective available treatment for chronic hepatitis C virus (HCV) infection. Its role in HIV/HCV-co-infected patients who have failed IFN-based therapy is unclear. OBJECTIVE: The aim of this study was to determine the safety and efficacy of this therapy in HIV/HCV-co-infected non-responders and relapsers. DESIGN: An open-label cohort study of 32 non-responders and relapsers to IFN (with or without ribavirin). Patients were treated for 48 weeks with PEG-IFN-alpha 2b and ribavirin. MAIN OUTCOME MEASURE: A sustained virological response (SVR) defined as a negative HCV-RNA level 24 weeks after the end of treatment. RESULTS: The mean age of the patients was 40 years; 78% were men, 67% had genotype 1, and 36% had bridging fibrosis or cirrhosis. The majority had a CD4 cell count greater than 200 cells/microl (97%) and an undetectable HIV-RNA level (81%). Fifteen patients (47%) withdrew because of adverse events, predominantly neuropsychiatric. In an intention-to-treat analysis, a SVR was observed in five patients (16%); 9% with genotype 1 versus 29% with genotype 3 and 33% with genotype 4 (P = NS). Additional, but statistically non-significant, univariate predictors of response were lower serum HCV-RNA (P = 0.07) and higher alanine aminotransferase levels (P = 0.055) at baseline. No patient with bridging fibrosis or cirrhosis responded. Treatment had a minimal impact on HIV parameters. CONCLUSION: PEG-IFN-alpha 2b and ribavirin is a potentially useful therapy in HIV/HCV-co-infected patients who have failed standard IFN-based regimens. Strategies to improve adherence are vital so as to maximize long-term response rates.
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