Medline: 9049885

Journal of Neuro-Oncology 32(3): 235-241, 1997.

Treatment of pediatric low-grade gliomas with a nitrosourea-based multiagent chemotherapy regimen.

Prados MD, Edwards MS, Rabbitt J, et al.

Abstract:

Between March 9, 1984 and January 29, 1992, 42 children with newly diagnosed symptomatic or previously diagnosed progressive low-grade gliomas received outpatient chemotherapy as their primary treatment. This study was a single arm, phase II trial designed to estimate the time to tumor progression and toxicity of this regimen. Procarbazine, 6-thioguanine, and dibromodulcitol were given before lomustine (CCNU) and vincristine was given 1 and 3 weeks after CCNU. Patients were treated for six treatment cycles or until the tumor progressed, whichever came first. Twenty-three patients had juvenile pilocytic astrocytomas, 11 had astrocytomas, one had oligodendroglioma, one had ganglioglioma, and six had radiographically diagnosed low-grade gliomas. The mean age of the patients was 5 years (median, 3 years). The median time to treatment failure was 132 weeks (95% confidence interval: 106, 186 weeks). Only eight patients have died the estimated 5-year survival rate is 78% (95% confidence interval, 60% 87%). There were two episodes of grade 4 neutropenia, and three episodes of grade 4 thrombocytopenia. This regimen was safe, able to be delivered in the outpatient setting, and produced prolonged periods of disease stabilization in children with low-grade gliomas.


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