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Together we can make a significant contribution to achieving malaria elimination targets.
BACKGROUND: Individuals with recent hepatitis C virus infection may benefit from shortened duration therapy. These studies evaluated the efficacy and safety of response-guided regimens with pegylated-interferon alfa-2a and ribavirin for people with recent HCV infection. METHODS: Participants with recent hepatitis C (duration of infection </=18months) enrolled in the ATAHC II (pegylated-interferon alfa-2a +/- ribavirin) and DARE-C I (pegylated-interferon alfa-2a, ribavirin and telaprevir) studies were included for analysis. Treatment duration was response-guided (ATAHC II: 8, 16, 24 or 48 weeks; DARE-C I: 8, 12 or 24 weeks) and dependent on time to first undetectable HCV RNA using Roche Taqman HCV RNA testing. The primary efficacy endpoint was SVR12 by intention-to-treat. Logistic regression analyses were used to identify predictors of SVR. RESULTS: Eighty-two participants (62% HIV-positive) were enrolled in ATAHC II (treated, n=52) and 14 (79% HIV-positive) in DARE-C I. The predominant modes of HCV acquisition were injecting drug use (ATAHC II: 55%, DARE-C I: 36%) and sexual intercourse with a partner of the same sex (ATAHC II 39%, DARE-C I 64%). SVR12 was 71% in both ATAHC II (37/52) and DARE-C I (10/14) with 56% in ATAHC II receiving shortened therapy (8 or 16 weeks). SVR was associated with a rapid virological response (odds ratio 10.80; p=0.001). CONCLUSIONS: The majority of participants were able to receive short duration response-guided therapy with pegylated-interferon alfa-2a and ribavirin. Response-guided therapy for recent hepatitis C infection could be considered in the absence of available interferon-free therapies.