SEATTLE--(BUSINESS WIRE)--ZymoGenetics, Inc. (NASDAQ:ZGEN) today announced the initiation of the second part of a Phase 2 clinical trial with PEG-Interferon lambda (IL-29) and ribavirin in treatment-naïve patients with chronic hepatitis C virus (HCV) infection. ZymoGenetics is developing the investigational compound PEG-Interferon lambda in collaboration with Bristol-Myers Squibb Company (NYSE:BMY).
