ACNS0331 Arm IV Includes 3-7 Years of Age, SDCSI, PFRT

**Semantic type:** Research Activity

**Definition:** Patients 3-7 years of age randomized with the following course sequence: 1) Standard dose craniospinal irradiation (SDCSI) 2) Whole posterior fossa radiation therapy (PFRT) boost. (Michalski JM, et al. J Clin Oncol. 2021 Aug 20;39(24):2685-2697.)

**Synonyms:** - ACNS0331:Arm IV (3-7 years of age, SDCSI, PFRT)