SEATTLE--(BUSINESS WIRE)--ZymoGenetics, Inc. (NASDAQ:ZGEN), today presented data from a Phase 1a clinical trial with PEG-Interferon lambda (also known as IL-29) in healthy volunteers showing that administration of single doses of PEG-Interferon lambda was well tolerated at doses that produced anticipated pharmacologic activity, including up-regulation of interferon response markers associated with antiviral effects. No fever or hematologic effects, which are typically seen with interferon alpha, were observed at any of the dose levels tested.
