Journal
LIVER INTERNATIONAL
Volume 26, Issue 1, Pages 73-81Publisher
WILEY
DOI: 10.1111/j.1478-3231.2005.01196.x
Keywords
duration; fibrosis; HCV; PEG interferon; ribavirin; viral load
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Background: To assess the efficacy of 24- or 48-week peginterferon/ribavirin treatment of Taiwanese patients with chronic hepatitis C virus genotype-1b (HCV-1b) infection, and to identify subgroups of patients in whom the 48-week treatment has benefits. Methods: We assigned 60 patients receiving peginterferon-alpha-2b (80-100 mcg/week) plus ribavirin (1000-1200 mg/day), depending on body weight, for 24 or 48 weeks, with a 3:1 randomization ratio. Results: The sustained virological response (SVR) rate was significantly higher in the 48-week (80.0%, 12/15) than in the 24-week group (48.9%, 22/45, P<0.05). The 60 patients were classified into two subgroups according to the presence of unfavorable baseline predictors: viral loads >= 400 000 IU/ml or a hepatic fibrosis score of 3-4. In 19 patients without an unfavorable predictor, the SVR rate was comparable in the 24-week (78.6%) and 48-week (75.0%) groups; in patients with either unfavorable predictors, the SVR rate was significantly higher in the 48-week (81.1%, 9/11) than in the 24-week group (36.7%, 11/30, P=0.0 15). The discontinuation rate was significantly higher in the 48-week (20.0%, 3/15) than in the 24-week group (2.2%, 1/45, P<0.05). Conclusion: A 48-week course of peginterferon-alpha-2b/ribavirin was more effective than a 24-week course in Taiwanese HCV-1b patients, mainly in those with high viral loads and/or advanced hepatic fibrosis.
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