Combination therapy with interferon alfa and ribavirin as retreatment of interferon relapse in chronic hepatitis C

Abstract

Interferon (IFN) results in normalization of the serum alanine aminotransferase (ALT), loss of detectable serum hepatitis C virus (HCV) RNA, and histologic improvement in approximately 40% of patients. However, regardless of the duration of initial therapy, most patients relapse within the first few months after the drug is stopped and only a small proportion have a sustained response. Retreatment of IFN relapsers with the combination of IFN and oral ribavirin for 6 months results in end-of-treatment loss of detectable HCV RNA and normalization of the ALT level in over 80% of patients. Nearly half achieve a sustained viral-negative response. Histologic improvement occurs in nearly two thirds of patients retreated with combination therapy and is most pronounced in those who lose serum HCV-RNA.