Promising drug for recurrent brain tumor in kids falls short in early trial

NCT ID NCT03904862

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested an oral drug called CX-4945 (silmitasertib) in 21 children with recurrent SHH medulloblastoma, a rare brain tumor. The trial aimed to find the best dose and see if the drug could shrink tumors. However, the study was stopped early, so we don't have clear answers on whether it works.

What this could mean

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

Active substance

CX-4945 (silmitasertib sodium), an oral drug

What this could lead to

If successful, this could point toward a new treatment option for children with recurrent SHH medulloblastoma, a rare brain tumor.

What could go wrong

The trial was terminated early with only 21 participants, so results are limited. It is unclear if the drug is effective or safe enough for broader use.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

childhood medulloblastoma medulloblastoma medulloblastoma SHH activated microphthalmia, isolated, with coloboma 5

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

    Chicago, Illinois, 60611, United States

  • Baylor College of Medicine

    Houston, Texas, 77030, United States

  • Children's Healthcare of Atlanta

    Atlanta, Georgia, 30322, United States

  • Children's Hospital of Los Angeles

    Los Angeles, California, 90026, United States

  • Children's Hospital of Pittsburgh of UPMC

    Pittsburgh, Pennsylvania, 15201, United States

  • Children's National Medical Center

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

  • Cincinnati Children's Hospital Medical Center

    Cincinnati, Ohio, 45229, United States

  • Memorial Sloan-Kettering Cancer Center

    New York, New York, 10065, United States

  • Nationwide Children's Hospital

    Columbus, Ohio, 43205, United States

  • St. Jude Children Research Hospital

    Memphis, Tennessee, 38105, United States

  • Stanford University and Lucile Packard Children's Hospital

    Palo Alto, California, 94304, United States

  • University of Florida

    Gainesville, Florida, 32608, United States