- Patients with known active brain metastases; patients with a history of treated brain metastasis are eligible if the patient is off systemic steroids and there are no clinical indications of central nervous system (CNS) progression for a least 1 month; patients with glioblastoma multiforme are eligible if the above criteria are otherwise met; note: many clinical trials do not allow enrollment of such patients; if the physician, in good conscience, feels that applicable protocols for their patient do exist, enrollment onto this trial is acceptable, assuming other eligibility criteria are met