New PET tracer aims to illuminate hidden HER2 tumors

NCT ID NCT06828588

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

Summary

This early-phase study tests a radioactive tracer called [68Ga]Ga-ABY-025 for PET scans in 30 adults with advanced HER2-positive cancers (breast, gastric, head/neck, esophageal). Participants receive the tracer and a PET/CT scan before or during standard HER2-targeted therapy. The goal is to see if the tracer safely and clearly highlights tumors, potentially improving how doctors track these cancers.

What this could mean

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

Active substance
[68Ga]Ga-ABY-025 (a radioactive tracer for PET scans)
What this could lead to
If successful, this imaging method could help doctors more accurately identify and monitor HER2-positive tumors, potentially guiding treatment decisions.
What could go wrong
This is a very early pilot study with only 30 participants, so results are preliminary. The tracer may not improve detection over current methods, and there is a small risk of side effects from the injection.

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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

  • Vanderbilt University Medical Center

    RECRUITING

    Nashville, Tennessee, 37232, United States

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