Treatment Arm for COG ACNS0331 Comparison of Radiation Therapy Regimens in Combination with Chemotherapy in Treating Young Patients with Newly Diagnosed Standard-Risk Medulloblastoma

**Semantic type:** Research Activity

**Definition:** A treatment arm associated with a phase III Children's Oncology Group trial (ACNS0331) exam the efficacy and safety of reduced-dose and reduced-volume radiotherapy with chemotherapy to treat young patients newly-diagnosed with average-risk medulloblastoma. (Michalski JM, et al. J Clin Oncol. 2021 Aug 20;39(24):2685-2697)