 - Prior external beam radiation therapy to less than 30 of the bone marrow only is allowed. At least 28 days must have elapsed since the completion of radiation therapy and the patient must have recovered from side effects. Prior treatment with samarium-153, radium-223, or strontium-86 is allowed if at least eight weeks have elapsed since dosing, and all toxicities have resolved to grade 1. Soft tissue disease which has been radiated in the prior 2 months is not assessable as measurable disease. 