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.


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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