- Patients must be ≥ 4 weeks beyond treatment of any chemotherapy, other investigational therapy, biological, targeted agents or radiotherapy, and must have recovered to =< grade 1 toxicity or previous baseline for each toxicity; exceptions: patients must be >= 6 weeks beyond treatment with monoclonal antibodies; patients may have received palliative low dose radiotherapy to the limbs 1-4 weeks before this therapy provided pelvis, sternum, scapulae, vertebrae, or skull were not included in the radiotherapy field