Chemotherapy and Radiation Therapy in Treating Young Patients With Newly Diagnosed, Previously Untreated, High-Risk Medulloblastoma or Supratentorial Primitive Neuroectodermal Tumor


  • Study type

  • Study phase

  • Study IDs

  • Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

  • Site IRB
    • Rochester, Minnesota: 07-004144
    NCT ID: NCT00392327
    Sponsor Protocol Number: ACNS0332

About this study

This randomized phase III trial is studying different chemotherapy and radiation therapy regimens to compare how well they work in treating young patients with newly diagnosed, previously untreated, high-risk medulloblastoma or supratentorial primitive neuroectodermal tumor. 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) may kill more tumor cells. Isotretinoin may help chemotherapy work better by making tumor cells more sensitive to the drugs. Radiation therapy uses high-energy x-rays to kill tumor cells. Carboplatin may make tumor cells more sensitive to radiation therapy. It is not yet known which chemotherapy and radiation therapy regimen is more effective in treating brain tumors.

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. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Newly diagnosed, previously untreated: (1) M0 medulloblastoma with > 1.5 cm^2 residual; (2) M+ medulloblastoma; patients with diffusely anaplastic medulloblastoma are eligible regardless of M-stage or residual tumor
    • As of amendment # 2, enrollment of patients with supratentorial PNET has been discontinued
    • All patients with M4 disease are not eligible
  • A pre-operative magnetic resonance imaging (MRI) scan of the brain with and without contrast is required; NOTE: computed tomography (CT) scans are NOT sufficient for study eligibility
    • Post-operative head MRI scan with and without contrast (preferably within 72 hours post-surgery); for patients who undergo stereotactic biopsy only, either a pre or post-operative MRI is sufficient; for patients with M2 and M3 disease, a post-op MRI is strongly encouraged, but not mandatory
    • Spinal MRI imaging with and without gadolinium is required within 10 days of surgery if done pre-operatively or within 28 days of surgery if done post-operatively; for posterior fossa tumors, pre-operative MRI scans are preferred
  • Lumbar cerebrospinal fluid (CSF) cytology examination must be obtained pre-operatively or within 31 days following surgery; the optimal time for obtaining CSF is prior to surgery or 1-3 weeks following surgery; ventricular CSF (either pre- or post-op) may be used only if a post-operative spinal tap is contraindicated; if a spinal tap is contraindicated and there is no ventricular CSF available, then CSF cytology can be waived for patients with supratentorial tumors or if there is documentation of spinal subarachnoid metastases (M3); patients who are categorized as M1 must have either an intra-operative positive CSF (via lumbar puncture at the end of the procedure) or a positive lumbar CSF obtained > 7 days post-operatively
  • Patients must have a Karnofsky performance level of ≥30 for patients > 16 years of age or a Lansky performance scale of ≥ 30 for patients ≤ 16 years of age and life expectancy > 8 weeks
  • No previous chemotherapy or radiation therapy
  • Patients taking Accutane (isotretinoin) for acne must discontinue drug use with this indication prior to enrollment; corticosteroids should not be used during chemotherapy administration as an antiemetic
    • Isotretinoin is contraindicated in patients with parabens allergy and patients with soybean allergy; concurrent use with tetracyclines should be avoided; intake of vitamin A should be limited for the duration of isotretinoin treatment
  • Selected strong inhibitors of cytochrome P450, family 3, subfamily A, polypeptide 4 (cytochrome P450 3A4) include azole antifungals, such as fluconazole, voriconazole, itraconazole, ketoconazole, and strong inducers include drugs such as rifampin, phenytoin, phenobarbitol, carbamazepine, and St. John's wort; the use of these drugs should be avoided with vincristine (vincristine sulfate)
  • CYP450 3A4 stimulators or inhibitors should be avoided or used with great caution when taking cyclophosphamide; aprepitant should also be used with caution with etoposide or vincristine chemotherapy
  • Cisplatin should be used with caution with nephrotoxic drug; aminoglycoside should be avoided or used with caution during or shortly after cisplatin administration and concomitant use with amphotericin B should probably also be avoided; patients receiving cisplatin and other potentially ototoxic drugs such as aminoglycoside or loop diuretics concomitantly should be closely monitored for signs of ototoxicity
    • Plasma levels of anticonvulsant agents should be monitored and doses adjusted during therapy with cisplatin
  • No other experimental therapy is permitted while on study
  • Creatinine clearance or radioisotope glomerular filtration rate (GFR) ≥70 mL/min/1.73 m^2 OR a serum creatinine based on age/gender as follows:
    • 0.4 mg/dL (1 month to < 6 months of age)
    • 0.5 mg/dL (6 months to < 1 year of age)
    • 0.6 mg/dL (1 to < 2 years of age)
    • 0.8 mg/dL (2 to < 6 years of age)
    • 1.0 mg/dL (6 to < 10 years of age)
    • 1.2 mg/dL (10 to < 13 years of age)
    • 1.5 mg/dL (male) or 1.4 mg/dL (female) (13 to < 16 years of age)
    • 1.7 mg/dL (male) or 1.4 mg/dL (female) (≥16 years of age)
  • Total bilirubin < 1.5 x upper limit of normal (ULN) for age
  • Serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase [AST]) or serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) < 2.5 x upper limit of normal (ULN) for age; for patients on anti-seizure medications, SGOT (AST) or SGPT (ALT) must be < 5 x ULN
  • Absolute neutrophil count (ANC) ≥1,000/uL
  • Platelets ≥100,000/uL (untransfused)
  • Hemoglobin ≥8 g/dl (may be transfused)
  • Female patients who are post-menarchal must have a negative pregnancy test; lactating female patients must agree not to breast-feed while on this trial; males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method
  • All patients and/or their parents or legal guardians must sign a written informed consent
  • All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

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



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