- Patients with asymptomatic brain metastases may be enrolled and if clinically indicated, may be treated with steroids to be tapered as tolerated by the patient. Patients with symptomatic brain metastases will be eligible for the study after they have received therapeutic whole brain irradiation (WBI), which must be completed at least 7 days before the day of first treatment with study drugs. Since these patients will also be treated with steroids it is recommended that steroids be tapered as clinically indicated and tolerated by the patient. The use of chronic, low-dose steroids is not contraindicated for these patients (or any other patients). Stereotactic radiation will be allowed for 1 to 3 brain metastatic lesions that meet appropriate criteria for that procedure; however, this must be discussed with the study monitor prior to consideration for enrollment into this study.