3. Prior chemotherapy, biological therapy, androgens, thalidomide, immunotherapy, other anticancer agents or any investigational agents within 14 days of starting study treatment (not including palliative radiotherapy at focal sites), radiotherapy with a wide field of radiation (greater than or equal to 30% marrow or whole pelvis or spine) within 4 weeks of starting study treatment, or strontium-90 (or other radiopharmaceuticals) within the past 3 months or major surgery within 4 weeks prior to entry into the study (excluding the placement of vascular access); with the exception of alopecia, all unresolved toxicities from prior treatment should be no greater than CTCAE grade 1 at the time of starting study treatment