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)
National Cancer Institute (NCI)
University of Michigan Rogel Cancer Center
Thomas Jefferson University
Mayo Clinic
Emory University
Jonsson Comprehensive Cancer Center
Mayo Clinic
Mayo Clinic
Mayo Clinic
Emory University
Mayo Clinic
NRG Oncology
City of Hope Medical Center