Virological response at 4 weeks to predict outcome of hepatitis C treatment with pegylated interferon and ribavirin.

Background: Viral kinetics during therapy provides information on how to individualize treatment. To determine the benefit of assessing positive predictive values (PPVs) and negative predictive values (NPVs) of rapid virological responses (RVRs) and early virological responses (EVRs), on-treatment outcomes in chronic hepatitis C patients were examined.

Methods: A total of 408 patients (221 treatment-naive) treated with pegylated interferon-alpha2b and ribavirin were included.