- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning 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
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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.
Studietyp
Inskrivning (Beräknad)
Kontakter och platser
Studiekontakt
- Namn: Marta Kollárová, MSc., PhD.
- Telefonnummer: +421 950 896 026
- E-post: marta.kollarova@premedix.org
Studieorter
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Bratislava, Slovakien
- Rekrytering
- PreMedix
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Kontakt:
- Allan Bohm, M.D., MSc. PhD.
- Telefonnummer: +421 907 411 499
- E-post: allan.bohm@premedix.org
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Huvudutredare:
- Allan Bohm, M.D., MSc., PhD.
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Testmetod
Studera befolkning
Beskrivning
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
Studieplan
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
Intervention / Behandling |
|---|---|
|
Documented AF
HF patients with a history of permanent/paroxysmal AF and AF documented on 12-lead ECG at enrollment
|
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
|
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.
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
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
Tidsram: Through study completion (estimated November 2026)
|
Through study completion (estimated November 2026)
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Sensitivity and specificity of the algorithm at the Youden-optimal threshold
Tidsram: 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
Tidsram: Through study completion (estimated November 2026)
|
Through study completion (estimated November 2026)
|
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Average precision
Tidsram: Through study completion (estimated November 2026)
|
area under the precision-recall curve
|
Through study completion (estimated November 2026)
|
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Model calibration
Tidsram: Through study completion (estimated November 2026)
|
e.g., calibration curve / Brier score
|
Through study completion (estimated November 2026)
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Matthews correlation coefficient
Tidsram: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
|
|
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Overall classification accuracy
Tidsram: Through study completion (estimated November 2026)
|
Through study completion (estimated November 2026)
|
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Specificity and false-positive rate in the subgroup with frequent atrial/ventricular extrasystoles
Tidsram: 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
Tidsram: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
|
Samarbetspartners och utredare
Sponsor
Studieavstämningsdatum
Studera stora datum
Studiestart (Faktisk)
Primärt slutförande (Beräknad)
Avslutad studie (Beräknad)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- HeartCoreAF01
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