MELVILLE, N.Y.--(BUSINESS WIRE)--March 1, 2006--OSI Pharmaceuticals (Nasdaq: OSIP), announced today that it will host a live webcast of its Research and Development Day on Friday, March 10, 2006 at 9:00AM Eastern Time. OSI’s senior management will review the Company’s oncology, eye disease and diabetes research and development programs as well as its product portfolio. The webcast is expected to last approximately three hours.