New PET tracer could spot hidden heart nerve damage in ICD patients

NCT ID NCT06965621

First seen Jun 27, 2026 · Last updated Jul 01, 2026 · Updated 1 time

Summary

This phase 2 study tests a new radioactive imaging agent, 18F-mFBG, to measure nerve damage in the hearts of 20 people with stable heart failure and implantable defibrillators (ICDs). The goal is to see if the agent can reveal differences in nerve function between those who have had a shock from their ICD and those who have not. The study will also compare the new agent to existing imaging methods and check for side effects.

What this could mean

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

Active substance

18F-metaFluorobenzylguanidine (18F-mFBG)

What this could lead to

If successful, this imaging method could help doctors better identify which heart failure patients are at risk of dangerous heart rhythms, potentially improving ICD therapy decisions.

What could go wrong

This is a small, early-phase study (20 people) focused on imaging, not treatment. The new agent may not prove better than existing methods, and safety data are still being collected.

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.

cardiomyopathy dilated cardiomyopathy heart failure impulse control disorder myocardial ischemia

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • UT Health Houston

    RECRUITING

    Houston, Texas, 77030, United States

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••