3-year progression-free survival rate 2 years follow-up after initiation of radiation therapy for the last patient enrolled [clinicaltrials_resource:6a63d6b60c11c551f9ee55d5e45c6ad4]

Evaluation will be in children and young adults with ependymoma treated with a second course of irradiation. Outcomes will be reported by p-values.

3-year progression-free survival rate 2 years follow-up after initiation of radiation therapy for the last patient enrolled [clinicaltrials_resource:6a63d6b60c11c551f9ee55d5e45c6ad4]

Evaluation will be in children and young adults with ependymoma treated with a second course of irradiation. Outcomes will be reported by p-values.