O6-Benzylguanine and Carmustine Implants in Treating Patients With Recurrent Malignant Glioma
Conditions
- Brain and Central Nervous System Tumors
Interventions
- DRUG: O6-benzylguanine
- DRUG: polifeprosan 20 with carmustine implant
- PROCEDURE: conventional surgery
Sponsor
National Cancer Institute (NCI)