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 type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 200 (estimated) |
| Sponsor | Seerlinq s. r. o. Academic / other |
| Locations | 1 site (Bratislava) |
| Status | Recruiting |
| Started | October 1, 2025 |
| Main results expected | August 2026 |
| Study ends | November 2026 |
| Registry record updated | August 6, 2026 |
| Trial ID | NCT07749183 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
- Study coordinator: Marta Kollárová, MSc., PhD.
- Email: marta.kollarova@premedix.org
- Phone: +421 950 896 026
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.