See " Efficacy of the protease inhibitor BI 201335, polymerase inhibitor BI 207127, and ribavirin in patients with chronic HCV infection , " by Zuezem S, Asselah T, Angus P, et al, on page 2047. C ombination therapy with pegylated interferon (PEG-IFN) and ribavirin (RBV) was the standard of care for chronic hepatitis C (CHC) for over a decade. Sustained virologic response (SVR) rates vary from ...