Trial ID or NCT#



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This phase I trial studies the side effects and best dose of pembrolizumab and to see how well it works in treating younger patients with high-grade gliomas (brain tumors that are generally expected to be fast growing and aggressive), diffuse intrinsic pontine gliomas (brain stem tumors), brain tumors with a high number of genetic mutations, ependymoma or medulloblastoma that have come back (recurrent), progressed, or have not responded to previous treatment (refractory). Immunotherapy with monoclonal antibodies, such as pembrolizumab, may induce changes in the body's immune system, and may interfere with the ability of tumor cells to grow and spread.

Official Title

A Safety and Preliminary Efficacy Trial of MK-3475 (Pembrolizumab; Anti-PD-1) in Children With Recurrent, Progressive or Refractory Diffuse Intrinsic Pontine Glioma (DIPG), Non-Brainstem High-Grade Gliomas (NB-HGG), Ependymoma, Medulloblastoma or Hypermutated Brain Tumors

Eligibility Criteria

Ages Eligible for Study: 1 Year to 29 Years
Sexes Eligible for Study: All
Accepts Healthy Volunteers: No


Michelle Monje
Paul Graham Fisher, MD
Paul Graham Fisher, MD
Neuro-oncologist, Pediatric neurologist
Beirne Family Professor of Pediatric Neuro-Oncology, Professor of Pediatrics and, by courtesy, of Neurosurgery and of Epidemiology and Population Health
Sonia Partap

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Stefania Ursu Chirita