- Patients may have received up to one prior biotherapy regimen and treatment must have been completed at least 4 weeks prior to randomization; no more than two prior chemotherapy regimens for recurrent and/or metastatic disease are permitted; patients may have received prior docetaxel or paclitaxel, but must not have been previously treated with an investigational taxane; chemotherapy treatment must have been completed at least 4 weeks prior to randomization