MELVILLE, N.Y.--(BUSINESS WIRE)--May 30, 2006--OSI Pharmaceuticals, Inc. (Nasdaq: OSIP - News) today announced it will host a live webcast to provide a summary of data on the Company’s flagship product, Tarceva®, which will be presented during the 2006 Annual Meeting of the American Society of Clinical Oncology (ASCO) in Atlanta, GA. The webcast will be hosted by Colin Goddard, Ph.D., Chief Executive Officer and OSI’s Oncology Management Team and will begin at 7:30AM Eastern Time on Tuesday, June 6, 2006.