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RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Combining chemotherapy with peripheral stem cell transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more tumor cells.
PURPOSE: Phase II trial to study the effectiveness of different regimens of combination chemotherapy followed by peripheral stem cell transplantation in treating children who have newly diagnosed brain tumor.
Full description
OBJECTIVES:
OUTLINE: This is a two regimen study based on disease characteristics.
Patients in regimens A, B, and C undergo leukapheresis after receiving filgrastim (G-CSF) by subcutaneous (SC) injections.
After regimen A, B, or C and in the absence of disease progression, patients undergo consolidation myeloablative chemotherapy by receiving carboplatin IV over 4 hours on days -8, -7, and -6, and then thiotepa IV over 3 hours followed by etoposide IV on days -5, -4, and -3. Patients with malignant gliomas or unbiopsied diffuse intrinsic pontine tumors do not receive etoposide. On day 0, patients are reinfused with autologous PBSC. Following recovery from consolidation chemotherapy, patients with radiographic or cytologic evidence of residual disease undergo radiotherapy.
Patients are followed at 3 months, then every 3 months for the first 2 years, then every 6 months for years 2-4, and then annually thereafter.
PROJECTED ACCRUAL: Approximately 96 patients (73 for regimen A and 23 for regimen C) will be accrued for this study. (Regimen B closed to accrual effective 3/30/2000.)
Sex
Ages
Volunteers
Inclusion and exclusion criteria
DISEASE CHARACTERISTICS:
Regimen A:
Posterior fossa medulloblastoma/primitive neuroectodermal tumor (PNET):
Supratentorial PNET, pineoblastoma, cerebral neuroblastoma, ependymoblastoma, medulloepithelioma, medullomyoblastoma:
Brainstem PNET:
Ependymoma or anaplastic ependymoma:
Supratentorial ependymoma:
Metastatic retinoblastoma:
Primary atypical teratoid/rhabdoid tumors of the CNS:
Choroid plexus carcinoma:
Regimen C:
Anaplastic astrocytoma, glioblastoma multiforme, anaplastic oligodendroglioma, anaplastic ganglioglioma, other anaplastic mixed gliomas:
Diffuse intrinsic pontine tumors:
The following diagnoses are not eligible:
PATIENT CHARACTERISTICS:
Age:
Performance status:
Life expectancy:
Hematopoietic:
Hepatic:
Renal:
PRIOR CONCURRENT THERAPY:
Biologic therapy:
Chemotherapy:
Endocrine therapy:
Radiotherapy:
Surgery:
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Data sourced from clinicaltrials.gov
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