MELVILLE, N.Y.--(BUSINESS WIRE)--OSI Pharmaceuticals, Inc. (Nasdaq: OSIP) announced today that its fourth quarter and year-end 2007 financial results will be released on February 21, 2008, after the markets close. Following the announcement OSI’s management will host a live conference call and webcast at 5:00p.m. Eastern Time to review the Company’s financial results, product portfolio and business developments.