Could a vaccine help fight childhood brain cancer? new trial underway

NCT ID NCT05096481

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 2 trial is testing a vaccine called PEP-CMV in 120 children and young adults with high-grade glioma, diffuse intrinsic pontine glioma (DIPG), or recurrent medulloblastoma. The vaccine targets a common virus (CMV) found in many brain tumors, aiming to boost the immune system to attack the cancer. Participants receive the vaccine along with standard treatments like radiation or chemotherapy.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
PEP-CMV vaccine (a synthetic peptide targeting CMV antigen, mixed with Montanide ISA-51 adjuvant)
What this could lead to
If successful, this vaccine could offer a new immunotherapy option to help control aggressive pediatric brain tumors by training the immune system to attack cancer cells.
What could go wrong
This is an early Phase 2 trial with a small number of participants, so results may not apply to all patients. The vaccine may not shrink tumors or improve survival, and side effects from the immune response are possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Ann & Robert H. Lurie Children's Hospital of Chicago

    NOT_YET_RECRUITING

    Chicago, Illinois, 60611, United States

  • C.S. Mott Children's Hospital

    RECRUITING

    Ann Arbor, Michigan, 48109, United States

  • Children's Hospital Colorado

    RECRUITING

    Aurora, Colorado, 80045, United States

  • Children's Hospital of Philadelphia

    NOT_YET_RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • Children's National Medical Center

    RECRUITING

    Washington D.C., District of Columbia, 20010, United States

  • Cincinnati Children's Hospital Medical Center

    RECRUITING

    Cincinnati, Ohio, 45229, United States

  • Dana-Farber Cancer Institute

    NOT_YET_RECRUITING

    Boston, Massachusetts, 02215, United States

  • Duke Cancer Center

    RECRUITING

    Durham, North Carolina, 27710, United States

  • Nationwide Children's Hospital

    RECRUITING

    Columbus, Ohio, 43205, United States

  • Nicklaus Children's Hospital

    RECRUITING

    Miami, Florida, 33155, United States

  • Seattle Children's Hospital

    RECRUITING

    Seattle, Washington, 98105, United States

  • St. Louis Children's Hospital

    RECRUITING

    St Louis, Missouri, 63110, United States

    Contact Email: •••••@•••••

  • Texas Children's Hospital

    RECRUITING

    Houston, Texas, 77030, United States

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