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Abstract
Seventeen patients with recurrent medulloblastoma were treated with a combination of three drugs: procarbazine, CCNU, and vincristine (PCV). Tumor recurrence was documented at varying periods following surgery and radiotherapy. Among 16 evaluable patients, ten showed a response to PCV on the basis of subjective neurological improvement and a decrease in tumor size by radiological criteria. Five patients were designated as having stable disease on the basis of no change in neurological status and tumor size. One patient showed uninterrupted progression of disease. The median time to progression for all patients was 45 weeks. Significnat myelotoxicity, exacerbated by prior spinal irradiation, compromised therapy. After an initial response, it was often necessary to reduce the higher doses of CCNU and procarbazine that caused concomitant bone-marrow toxicity; as a consequence of the lowered doses, tumor progression was then frequently observed. The authors conclude that PCV is an effective form of palliative therapy for recurrent medulloblastoma.
View details for Web of Science ID A1978FQ19100014
View details for PubMedID 690688