New treatment for aggressive brain tumors in children and adults

Phase 1/2 trial of PEP-CMV + nivolumab for newly diagnosed diffuse midline glioma/high-grade glioma and recurrent diffuse midline glioma/high-grade glioma, medulloblastoma, and ependymoma (PRiME II)

NIH-funded research Washington University · NIH-11029506

This study is testing a new treatment for kids with tough brain tumors by using a special vaccine and a medicine that helps the immune system fight the cancer better, with the hope of helping them live longer and feel better.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionWashington University NIH-funded
Lab location1 site (Saint Louis, United States)
Project IDNIH-11029506 on NIH RePORTER

What this research studies

This research investigates a new treatment approach for aggressive brain tumors, specifically targeting pediatric high-grade glioma, diffuse midline glioma, recurrent medulloblastoma, and ependymoma. The treatment combines a peptide vaccine that targets a specific virus protein found in these tumors with an immune checkpoint inhibitor to enhance the body's immune response against the cancer. Patients will receive the vaccine along with nivolumab, a medication that helps the immune system recognize and attack cancer cells. The goal is to improve survival rates and quality of life for patients suffering from these devastating conditions.

Who could benefit from this research

Good fit: Ideal candidates for this research are patients diagnosed with pediatric high-grade glioma, diffuse midline glioma, recurrent medulloblastoma, or ependymoma.

Not a fit: Patients with other types of brain tumors or those who have already received extensive treatment may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could significantly improve survival rates and treatment outcomes for patients with aggressive brain tumors.

How similar studies have performed: Previous research has shown promising results with similar immunotherapeutic approaches, indicating potential for success in this novel combination treatment.

Where this research is happening

Saint Louis, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.