New imaging agent for breast cancer tested – but trial withdrawn

NCT ID NCT05634954

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-stage study aimed to test a new radioactive imaging agent called [18F]GEH121224 for detecting HER2-positive breast cancer using PET scans. The plan was to enroll 12 women with advanced breast cancer to check safety, radiation exposure, and the best timing for scans. However, the trial was withdrawn before any participants were enrolled, so no results are available.

What this could mean

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

Active substance
[18F]GEH121224 (a radioactive imaging agent for PET scans)
What this could lead to
If successful, this imaging agent could help doctors see HER2-positive breast cancer more clearly, guiding treatment decisions.
What could go wrong
This trial was withdrawn before any patients were enrolled, so no data is available. It is very early-stage research, and the agent may not prove safe or effective.

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

  • The University of Texas MD Anderson Cancer Centre

    Houston, Texas, 77030-4008, United States

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Other studies related to the condition(s) this trial covers.