MELVILLE, N.Y. and SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Nov. 2, 2005--OSI Pharmaceuticals, Inc. (NASDAQ: OSIP) and Genentech, Inc. (NYSE: DNA) announced today that the U.S. Food and Drug Administration (FDA) approved Tarceva(R) (erlotinib) in combination with gemcitabine chemotherapy for the treatment of advanced pancreatic cancer in patients who have not received previous chemotherapy. Tarceva is the first drug in a Phase III trial to have shown a significant improvement in overall survival when added to gemcitabine chemotherapy as initial treatment for pancreatic cancer. Tarceva is a once-daily oral tablet already approved for use in patients with non-small cell lung cancer (NSCLC) whose disease has progressed after one or more courses of chemotherapy. OSI also announced that Roche, its international partner for Tarceva, has submitted a Marketing Authorization Application (MAA) to the European Health Authorities for Tarceva for the treatment of pancreatic cancer.