Background/aims: We prospectively examined the effects of a reduced initial dose of ribavirin (RBV) combined with pegylated interferon (Peg-IFN) to prevent RBV discontinuation due to adverse events in patients with chronic hepatitis C (CH-C) infection aged > 60y or with low hemoglobin values.
Methodology: We enrolled 42 patients with hepatitis C virus (HCV) serotype 1. Twenty-one of them with hemoglobin values < 14g/dl or who were aged > 60y comprised group A. The other 21 patients (sex-and age-matched with group A) comprised group B, and received Peg-IFN (1.5 microg/ kg/week) and RBV (10-13 mg/kg/day) for 48 weeks. Group A initially received 200 mg less RBV than group B.
Results: Higher hemoglobin values persisted at 16, 20, 24 and 44 weeks, and the sustained viral response (SVR) ratio was lower in group A than in group B (17% vs. 57%). RBV therapy was discontinued due to severe anemia in group B, but not in group A.
Conclusions: The reduced initial dose of ribavirin prevented discontinuation due to anemia. However, this protocol cannot be recommended even for patients with CH-C accompanied by low hemoglobin or advanced age, since a sufficient SVR ratio is not achievable.
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