- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07749183
A Photoplethysmography-Based Machine Learning Algorithm for Early Atrial Fibrillation Detection: A Prospective Validation Study (HeartCore AF)
Prospective Validation of a Machine-Learning Algorithm Using Photoplethysmography Signals for Early Detection of Atrial Fibrillation During Remote Telemonitoring
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Atrial fibrillation (AF) and heart failure (HF) frequently coexist and share a bidirectional causal relationship; their concurrence is associated with worse clinical outcomes. Early detection of AF may enable timely intervention and improve outcomes. This study is prospectively validating a machine-learning algorithm for AF detection from PPG signals, intended for integration into the Seerlinq remote monitoring platform. This algorithm builds on the same core PPG signal-processing technology as Seerlinq's HeartCore device (a CE-certified, Class IIb device under the EU MDR that monitors left ventricular filling pressures in heart failure patients). It is a stand-alone algorithm designed specifically to detect clinically relevant (≥ 30s) atrial fibrillation.
Validation of the algorithm will proceed in three stages: (1) internal cross-validation; (2) external validation against an independent cohort with paired PPG-ECG recordings, to confirm generalizability; and (3) validation in a cohort of patients with paroxysmal atrial fibrillation and frequent sinus-AF transitions, to assess performance during clinically challenging rhythm changes.
The study is enrolling toward an estimated 1,000 unique PPG recordings. A 12-lead ECG is used to confirm cardiac rhythm classification (gold standard) as the reference for evaluating algorithm performance.
Type d'étude
Inscription (Estimé)
Contacts et emplacements
Coordonnées de l'étude
- Nom: Marta Kollárová, MSc., PhD.
- Numéro de téléphone: +421 950 896 026
- E-mail: marta.kollarova@premedix.org
Lieux d'étude
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Bratislava, Slovaquie
- Recrutement
- PreMedix
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Contact:
- Allan Bohm, M.D., MSc. PhD.
- Numéro de téléphone: +421 907 411 499
- E-mail: allan.bohm@premedix.org
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Chercheur principal:
- Allan Bohm, M.D., MSc., PhD.
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
Méthode d'échantillonnage
Population étudiée
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
Intervention / Traitement |
|---|---|
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Documented AF
HF patients with a history of permanent/paroxysmal AF and AF documented on 12-lead ECG at enrollment
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The PPG-based atrial fibrillation detection algorithm is a non-invasive signal processing approach that analyzes photoplethysmographic waveforms obtained during remote monitoring.
The algorithm evaluates pulse-to-pulse variability, waveform characteristics, and signal quality parameters to identify irregular rhythm patterns associated with atrial fibrillation and provide early detection of potential arrhythmic events.
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Non-AF
HF patients in sinus rhythm on the index 12-lead ECG with no prior documented AF episodes
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The PPG-based atrial fibrillation detection algorithm is a non-invasive signal processing approach that analyzes photoplethysmographic waveforms obtained during remote monitoring.
The algorithm evaluates pulse-to-pulse variability, waveform characteristics, and signal quality parameters to identify irregular rhythm patterns associated with atrial fibrillation and provide early detection of potential arrhythmic events.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
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Diagnostic accuracy (area under the ROC curve) of the PPG-based machine-learning algorithm for detecting clinically relevant AF (≥ 30s), compared with gold-standard 12-lead ECG
Délai: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Sensitivity and specificity of the algorithm at the Youden-optimal threshold
Délai: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Positive predictive value and negative predictive value
Délai: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Average precision
Délai: Through study completion (estimated November 2026)
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area under the precision-recall curve
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Through study completion (estimated November 2026)
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Model calibration
Délai: Through study completion (estimated November 2026)
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e.g., calibration curve / Brier score
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Through study completion (estimated November 2026)
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Matthews correlation coefficient
Délai: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Overall classification accuracy
Délai: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Specificity and false-positive rate in the subgroup with frequent atrial/ventricular extrasystoles
Délai: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Accuracy of AF detection during sinus-AF transitions at the individual patient level
Délai: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- HeartCoreAF01
Plan pour les données individuelles des participants (IPD)
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Description du régime IPD
Informations sur les médicaments et les dispositifs, documents d'étude
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