SEATTLE--(BUSINESS WIRE)--ZymoGenetics, Inc. (NASDAQ:ZGEN), today reported its financial results for the first quarter ended March 31, 2008. The company reported a net loss of $40.9 million, or $0.60 per share, compared to a net loss of $33.3 million, or $0.49 per share, for the first quarter of 2007. The 2008 net loss increased according to the company’s plan, reflecting initial sales and increased sales and marketing efforts associated with the U.S. launch of RECOTHROM™ Thrombin, topical (Recombinant), the company’s first commercial product, which was approved by the FDA in January 2008.