Experimental gene therapy aims to trick immune system to attack brain tumors

NCT ID NCT06914479

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage trial tests a new combination treatment for children and young adults (ages 3-39) with recurrent malignant brain tumors that can be surgically removed. The treatment uses two genetically modified viruses injected into the tumor site, plus an oral anti-herpes drug, to kill cancer cells and stimulate the immune system to attack the tumor. The main goal is to check safety and find the best dose, with only 11 participants enrolled.

What this could mean

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

Active substance
genetically modified viruses (AdV-HSV1-TK and AdV-Flt3L) plus valacyclovir
What this could lead to
If it works, this could point toward a new treatment option for recurrent malignant brain tumors that are hard to treat.
What could go wrong
This is a very early phase 1 trial with only 11 participants, so it is primarily testing safety and dosing. The treatment may not shrink tumors or improve survival, and there could be side effects from the viruses or valacyclovir.

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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

  • University of Michigan Comprehensive Cancer Center

    RECRUITING

    Ann Arbor, Michigan, 48109, United States

    Contact Email: •••••@•••••

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