Clinical trial Recruiting at 1 site Observational Ages 18 and up

Photoplethysmography-based algorithm to detect atrial fibrillation in heart failure patients

Official title: Prospective Validation of a Machine-Learning Algorithm Using Photoplethysmography Signals for Early Detection of Atrial Fibrillation During Remote Telemonitoring

Run by Seerlinq s. r. o. · NCT07749183 · Data updated 2026-11-12

A wearable-based, AI-powered test using PPG signals to see if a patient with heart failure has atrial fibrillation.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment200 (estimated)
SponsorSeerlinq s. r. o.
Academic / other
Locations1 site (Bratislava)
StatusRecruiting
StartedOctober 1, 2025
Main results expectedAugust 2026
Study endsNovember 2026
Registry record updatedAugust 6, 2026
Trial IDNCT07749183 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18 years) with diagnosed heart failure who have usable PPG data and a confirmed rhythm by 12-lead ECG.

Probably not a fit

Patients without AF and those without usable PPG recordings may not benefit from this algorithm.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This prospective validation study tests a new machine-learning algorithm that detects atrial fibrillation from photoplethysmography signals collected via a wearable device. The algorithm is designed for integration into the Seerlinq remote monitoring platform and builds on existing PPG signal-processing tech used in the HeartCore device. Validation occurs through internal cross-validation, external validation with paired PPG-ECG data, and evaluation in patients with paroxysmal AF and frequent rhythm changes. The study aims to enroll up to about 1,000 unique PPG recordings, with 12-lead ECG as the reference standard for rhythm classification.

Why it matters

Potential benefit: If successful, this algorithm could enable earlier AF detection in heart failure patients through remote monitoring, potentially guiding timely treatment decisions.

How similar studies have gone: Previous work using PPG and wearable data has shown promise, but this study provides prospective validation specifically for AF detection in a heart failure population.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults ≥18 years with a diagnosis of heart failure (HFrEF, HFmrEF, or HFpEF)
* 12-lead ECG performed to confirm cardiac rhythm classification (AF vs. non-AF)

Exclusion Criteria:

* Missing a valid PPG recording

Where it's running

  • Premedix
    Bratislava, Slovakia
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.