Pembrolizumab in Treating Younger Patients With Recurrent, Progressive, or Refractory High-Grade Gliomas, Diffuse Intrinsic Pontine Gliomas, Hypermutated Brain Tumors, Ependymoma or Medulloblastoma
National Cancer Institute (NCI)
National Cancer Institute (NCI)
Children's Oncology Group
University of Florida
Cellectar Biosciences, Inc.
City of Hope Medical Center
Pediatric Brain Tumor Consortium
Seattle Children's Hospital
Duke University
National Cancer Institute (NCI)