OBJECTIVES:
* Determine the toxic effects of intracranial iodine I 131 labeled anti-tenascin monoclonal antibody 81C6 in patients with primary or metastatic anaplastic gliomas.
* Determine the objective therapeutic response of these patients treated with this regimen.
OUTLINE: This is a dose escalation study of iodine I 131 labeled anti-tenascin monoclonal antibody 81C6 (MOAB 81C6). Patients are stratified by prior external beam radiotherapy (yes vs no).
Patients receive iodine I 131 labeled MOAB 81C6 intraventricularly followed by unlabeled MOAB 81C6 intraventricularly.
Cohorts of 3-6 patients receive escalating doses of iodine I 131 labeled MOAB 81C6 until the maximum tolerated dose is determined. The MTD is defined as the highest dose preceding that at which 3 of 6 patients experience dose-limiting toxicity.
Patients are followed monthly for 2 years, every 2 months for 2 years, and then every 3 months thereafter.
PROJECTED ACCRUAL: A total of 3-6 patients per cohort will be accrued for this study.