Patients were stratified according to prior adjuvant chemotherapy (yes vs no) and prior pelvic radiation (yes vs no). Patients must have completed any major surgery or radiotherapy (eg, chest or bone palliative RT or pelvic RT) ≥ 4 weeks from registration and completed any minor surgery ≥ 2 weeks from registration. Patients must have fully recovered from the procedure and/or radiotherapy. Patients must have initiated treatment within 7 days of registration. Patients were randomized to 1 of 4 treatment arms, please see a description of the treatment regimens in the "Arms" section. In addition, patients received concomitant and supportive therapy as appropriate per the protocol.