1. Prior chemotherapy, biological therapy, radiation therapy, or immunotherapy, androgens, thalidomide, other anticancer agents, investigational drug or corticosteroids within 14 days. Patients who received prior radiotherapy to >= 25% of bone marrow are not eligible independent of when it was received. Patients is not eligible if there are unresolved toxicities from prior therapy > CTCAE grade 1 at the start of study treatment with the exception of alopecia.