GERMANTOWN, Md.--(BUSINESS WIRE)--Avalon Pharmaceuticals, Inc. (Nasdaq:AVRX), a clinical-stage biopharmaceutical company focused on the discovery and development of novel cancer therapeutics, today announced financial and operational results for the first quarter of 2008. For the three months ended March 31, 2008, net loss was $6.2 million, compared with $5.3 million in the first quarter of 2007. As of March 31, 2008, cash, cash equivalents and marketable securities totaled $23.6 million.