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ProtocolTrial Name and Objective

COG ACNS0831: Phase III Randomized Trial of Post-Radiation Chemotherapy in Patients with Newly Diagnosed Ependymoma Ages 1 to 21 years

1. To determine the event free survival (EFS) and overall survival (OS) of children with completely resected ependymoma treated with post-operative conformal radiation therapy (cRT) and then randomized to receive or not receive four cycles of post radiation maintenance chemotherapy with vincristine, cisplatin, etoposide and cyclophosphamide (VCEC).

2. To estimate the EFS and OS of children with incompletely resected ependymoma who are unable to achieve a complete response (CR) by a) post-operative induction chemotherapy or by b) second surgery who will then be non-randomly assigned to cRT followed by four cycles of maintenance chemotherapy (VCEC)

3. To further evaluate the EFS and OS of children with supratentorial classic ependymoma who achieve a complete resection at first or second resection or children who achieve a CR to short course induction chemotherapy following first surgery.


COG ACNS0334: A Phase III Randomized Trial for the Treatment of Newly Diagnosed Supratentorial PNET and High Risk Medulloblastoma in Children < 36 Months Old with Intensive Induction Chemotherapy with Methotrexate Followed by Consolidation with Stem Cell Rescue vs. the Same Therapy without Methotrexate

1. To determine if treatment of infants with high risk PNET CNS tumors with intensive chemotherapy plus high-dose methotrexate and peripheral blood stem cell rescue results in a higher complete response rate than the same regimen without methotrexate
2. To determine whether biologic characterization of these tumors will refine therapeutic stratification separating atypical teratoid rhabdoid tumors from primitive neuroectodermal tumors and possibly identifying other markers of value for stratification within the group of peripheral neuroectodermal
3. To determine if event free survival and patterns of failure differ between the methotrexate arm and the arm without methotrexate.
4. To compare acute, chronic and late effects of different regimens
5. To compare quality of life outcomes


COG ACNS1022: A Phase II Randomized Trial of Lenalidomide (NSC # 703813, IND # 70116) in Pediatric Patients with Recurrent, Refractory or Progressive Juvenile Pilocytic Astrocytomas and Optic Pathway Gliomas

1. To determine the objective response rate of children with recurrent, refractory or progressive juvenile astrocytomas and optic pathway gliomas who are treated with low-dose (20 mg/m2/dose) or high dose (115 mg/m2/dose) lenalidomide.
2. To estimate the event free survival of these patients when treated with lenalidomide
3. To correlate pharmacokinetics with objective response
4. To evaluate toxicities of long term lenalinomide use