<qa>  What is the name of the patient who has treated brain metastases?- Patients are ineligible if they have any currently active central nervous system CNS metastases; patients who have treated brain metastases with either surgical resection or stereotactic radiosurgery that have been stable on head magnetic resonance imaging MRI or contrast computed tomography CT scan for at least 4 weeks following treatment and within 4 weeks prior to randomization are eligible; patients must not have taken any steroids 14 days prior to randomization for the purpose of managing their brain metastases; patients with only whole brain irradiation for treatment of CNS metastases will be ineligible 