- Conditions
- Constitutional Mismatch Repair Deficiency Syndrome, Lynch Syndrome, Malignant Glioma, Recurrent Brain Neoplasm, Recurrent Childhood Ependymoma, Recurrent Diffuse Intrinsic Pontine Glioma, Recurrent Medulloblastoma, Refractory Brain Neoplasm, Refractory Diffuse Intrinsic Pontine Glioma, Refractory Ependymoma, Refractory Medulloblastoma
- Interventions
- Biospecimen Collection, Conventional Magnetic Resonance Imaging, Diffusion Tensor Imaging, Diffusion Weighted Imaging, Dynamic Contrast-enhanced MR Perfusion, Dynamic Susceptibility Contrast-Perfusion-Weighted Imaging, Magnetic Resonance Spectroscopic Imaging, Pembrolizumab
- Procedure · Biological
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 1 Year to 30 Years
- Enrollment
- 71 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2027
- U.S. locations
- 11
- States / cities
- Los Angeles, California • Palo Alto, California • Aurora, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced May 21, 2026, 6:38 PM EDT