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 California, San Francisco
Jonsson Comprehensive Cancer Center
Mayo Clinic
Ohio State University Comprehensive Cancer Center
City of Hope Medical Center
University of California, San Francisco
University of Miami
National Cancer Institute (NCI)
University of California, San Francisco
City of Hope Medical Center
National Cancer Institute (NCI)