Simple cheek swab could predict sudden cardiac death risk

NCT ID NCT04257994

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

Summary

This study explores whether a quick, painless cheek swab can spot protein changes linked to inherited heart conditions that cause sudden cardiac death in young people. Researchers will collect samples from 26 patients with arrhythmic disorders or family members at risk. If the test works, it could replace risky heart biopsies and help diagnose those at risk earlier.

What this could mean

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

Active substance

buccal smear sample

What this could lead to

If successful, this could provide a simple, painless cheek swab test to identify people at risk of sudden cardiac death without needing a heart biopsy.

What could go wrong

This is a small, early-stage study with only 26 participants, so results may not apply to everyone. The test is still experimental and not yet proven to reliably predict risk.

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.

Arrhythmias, Cardiac arrhythmogenic right ventricular cardiomyopathy Brugada syndrome cardiac sarcoidosis cardiogenetic rhythm disorder catecholaminergic polymorphic ventricular tachycardia dilated cardiomyopathy hypertrophic cardiomyopathy long QT syndrome

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

    Email: •••••@•••••

Locations

  • St George'S Hospital

    RECRUITING

    London, SW17 0RE, United Kingdom

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

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