Combination Therapy With Pegylated Interferon and Ribavirin in Patients With Chronic Hepatitis C Genotype 2 or 3 Infection Who Previously Have Relapsed After Therapy With Pegylated Interferon and Ribavirin

To evaluate the efficacy of pegylated interferon alfa-2a 40 kD (PEGASYS) combination therapy with ribavirin (Copegus)given for 24 or 48 weeks in patients with chronic hepatitis C (CHC) virus infection genotype 2 or 3 who responded during (i.e. had HCV-RNA \<50 IU/mL at the end of previous therapy), but relapsed after (i.e. had detectable HCV-RNA after the end of prior treatment) previous therapy with pegylated interferon and ribavirin given for at least 12 weeks and at most 24 weeks.