Combination Chemotherapy Followed by Peripheral Stem Cell Transplant in Treating Young Patients with Newly Diagnosed Supratentorial Primitive Neuroectodermal Tumors or High-Risk Medulloblastoma


About this study

This randomized phase III trial is studying two different combination chemotherapy regimens to compare how well they work when given before a peripheral stem cell transplant in treating young patients with newly diagnosed supratentorial primitive neuroectodermal tumors or high-risk medulloblastoma. Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) together with a peripheral stem cell transplant may allow more chemotherapy to be given so that more tumor cells are killed. It is not yet known which combination chemotherapy regimen is more effective when given before a peripheral stem cell transplant in treating supratentorial primitive neuroectodermal tumors or medulloblastoma.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Study Closed

Inclusion Criteria:

  • Diagnosis of 1 of the following:
    • High-risk medulloblastoma defined by any of the following:
      • Residual disease > 1.5 cm²
      • Lumbar cerebral spinal fluid cytology positive for tumor cells by analysis of fluid collected either before definitive surgery or ≥ 10 days after definitive surgery unless contraindicated
      • M0 disease in children < 8 months of age at diagnosis
      • M2 or M3 metastatic disease by MRI
      • M4 disease
    • Supratentorial primitive neuroectodermal tumor (PNET)(any M-stage)
    • Anaplastic medulloblastoma regardless of M-stage or residual tumor
    • M0 classic, non-desmoplastic medulloblastoma (R1) with radiographically measurable residual disease < 1.5 cm^2
  • MRI evidence of spinal disease
  • Tumor must be negative for INI1 gene
  • Has undergone definitive surgery within the past 31 days
  • No atypical teratoid rhabdoid tumors
  • Biological specimens must be available for correlative laboratory studies
  • Life expectancy > 8 weeks
  • Creatinine clearance or radioisotope glomerular filtration rate ≥ 60 mL/min
  • Bilirubin ≤ 1.5 times upper limit of normal (ULN)
  • AST and ALT < 2 times ULN
  • Shortening fraction ≥ 27% by echocardiogram
  • Ejection fraction ≥ 47% by radionuclide angiogram
  • No evidence of dyspnea at rest
  • Pulse oximetry > 94% on room air
  • Absolute neutrophil count > 1,000/mm³
  • Platelet count > 100,000/mm³ (transfusion independent)
  • Hemoglobin > 8 g/dL (RBC transfusions allowed)
  • Prior corticosteroids allowed
  • No prior radiation therapy or chemotherapy

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Amulya Nageswara Rao, M.B.B.S.

Closed for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office


More information


Publications are currently not available

Study Results Summary

Not yet available

Supplemental Study Information

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