Phase 2 Study of Chemotherapy and Response-Based Radiation for Children and Young Adults With Localized Non-Germinomatous CNS Germ Cell Tumors

What this Trial Is About

Researchers are investigating the best way to combine chemotherapy and radiation therapy for patients aged 3 to 29 years with localized non-germinomatous germ cell tumors NGGCT in the brain. This phase II trial aims to optimize treatment based on how well the tumor responds to initial chemotherapy, with the goal of reducing spinal cord relapses and adjusting therapy for better disease control. The study also compares different radiation types and examines cognitive and physical effects in children and young adults with NGGCT. Participants first receive induction chemotherapy consisting of carboplatin, etoposide, and ifosfamide over six cycles every 21 days. Based on tumor response, patients are assigned to one of two plans Plan A involves whole ventricular plus spinal canal irradiation WVSCI, delivered daily for 6 weeks, while Plan B includes high-dose chemotherapy with stem cell transplant followed by radiation therapy to the whole brain and spine. Some patients may undergo second-look surgery depending on tumor response before continuing treatment. Throughout the study, participants undergo MRI scans, collection of cerebrospinal fluid and blood samples, and questionnaires assessing cognitive, social, and behavioral functioning. Researchers monitor tumor response, progression-free survival, overall survival, and patterns of disease recurrence for up to 10 years. Safety and side effects are also evaluated to better understand long-term outcomes of these treatment approaches.

A Study of a New Way to Treat Children and Young Adults With a Brain Tumor Called NGGCT