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- Ensaio Clínico 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
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
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.
Tipo de estudo
Inscrição (Estimado)
Contactos e Locais
Contato de estudo
- Nome: Marta Kollárová, MSc., PhD.
- Número de telefone: +421 950 896 026
- E-mail: marta.kollarova@premedix.org
Locais de estudo
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Bratislava, Eslováquia
- Recrutamento
- PreMedix
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Contato:
- Allan Bohm, M.D., MSc. PhD.
- Número de telefone: +421 907 411 499
- E-mail: allan.bohm@premedix.org
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Investigador principal:
- Allan Bohm, M.D., MSc., PhD.
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Método de amostragem
População do estudo
Descrição
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
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
Coortes e Intervenções
Grupo / Coorte |
Intervenção / Tratamento |
|---|---|
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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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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Prazo |
|---|---|
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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
Prazo: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Sensitivity and specificity of the algorithm at the Youden-optimal threshold
Prazo: 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
Prazo: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Average precision
Prazo: 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
Prazo: 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
Prazo: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Overall classification accuracy
Prazo: 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
Prazo: 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
Prazo: Through study completion (estimated November 2026)
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Through study completion (estimated November 2026)
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Colaboradores e Investigadores
Patrocinador
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Estimado)
Conclusão do estudo (Estimado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- HeartCoreAF01
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
Descrição do plano IPD
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