AI heart reader aims to spot deadly rhythms before It's too late

NCT ID NCT05890716

First seen Jun 25, 2026 · Last updated Jul 21, 2026 · Updated 3 times

Summary

This study is testing a cloud-based artificial intelligence platform called Willem that analyzes ECG recordings to detect heart rhythm problems and abnormal patterns. Researchers will compare the AI's readings to those of board-certified cardiologists in over 5,300 high-risk cardiac patients. The goal is to see if the AI can match or exceed human expert accuracy, potentially leading to earlier detection and prevention of serious events like sudden cardiac arrest.

What this could mean

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

Active substance
AI-powered ECG analysis software
What this could lead to
If successful, this AI could help doctors catch dangerous heart rhythms faster and more accurately, potentially preventing heart attacks or sudden cardiac death.
What could go wrong
This is an observational study, not a treatment trial. The AI may not perform as well in real-world settings or on all types of heart patients.

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

  • Clínica Universitaria Navarra

    RECRUITING

    Pamplona, Navarre, 31008, Spain

  • Complejo Hospitalario Universitario A Coruña

    COMPLETED

    A Coruña, La Coruña, 15006, Spain

  • Hospital Clínico San Carlos

    COMPLETED

    Madrid, Madrid, 28040, Spain

  • Hospital General Universitario de Ciudad Real

    COMPLETED

    Ciudad Real, Ciudad Real, 13005, Spain

  • Hospital Sant Joan de Déu

    COMPLETED

    Barcelona, Barcelona, 08950, Spain

  • Hospital Universitario General de Villalba

    COMPLETED

    Madrid, Madrid, 28400, Spain

  • Hospital Universitario Nuestra Señora de Candelaria

    COMPLETED

    Santa Cruz de Tenerife, Santa Cruz de Tenerife, 38010, Spain

  • Hospital Universitario Puerta de Hierro

    COMPLETED

    Madrid, Madrid, 28222, Spain

  • Hospital Universitario de Basurto

    RECRUITING

    Bilbao, Vizcaya, 48013, Spain

  • Hospital Universitario del Henares

    COMPLETED

    Madrid, Madrid, 28822, Spain

  • Hospital Universitario y Politécnico La Fe

    COMPLETED

    Valencia, Valencia, 46026, Spain

  • Hospital Virgen de Arrixaca

    COMPLETED

    Murcia, Murcia, 30120, Spain

  • University Medical Center Groningen

    COMPLETED

    Groningen, Provincie Groningen, 9713 GZ, Netherlands

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