11. Patients must have fully recovered from the effects of any prior surgery, chemotherapy or radiation therapy. A minimum time period of 3 weeks should elapse between the completion of extensive radiation therapy for recurrent/metastatic disease and enrollment in the study. A minimum of 4 weeks should elapse between the completion of chemotherapy or any experimental therapy and enrollment in the study. At least 2 weeks should have elapsed from prior erlotinib or other biologic therapy.