LINCOLNSHIRE, Ill.--(BUSINESS WIRE)--BioSante Pharmaceuticals, Inc. (NASDAQ: BPAX) today reported on its financial results for the first quarter of 2012 and cash balance as of March 31, 2012. BioSante’s cash balance as of March 31, 2012 was approximately $49.5 million, compared to a cash balance of approximately $57.3 million on December 31, 2011.