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)
University of Michigan Rogel Cancer Center
Jonsson Comprehensive Cancer Center
Jonsson Comprehensive Cancer Center
M.D. Anderson Cancer Center
Mayo Clinic
Jonsson Comprehensive Cancer Center
Stanford University
Northwestern University