Viraferon alene eller i kombination med ribavirin er blevet undersøgt i 4 randomiserede fase III kliniske undersøgelser hos 2. 552 interferon- naive patienter med kronisk hepatitis C.
Viraferon alone or in combination with ribavirin has been studied in 4 randomised Phase III clinical trials in 2,552 interferon-naïve patients with chronic hepatitis C.