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- Essai clinique NCT02990741
A Clinical Trial Screening for Atrial Fibrillation (AF-CATCH) (AF-CATCH)
2 novembre 2020 mis à jour par: Ji-Guang Wang, Shanghai Jiao Tong University School of Medicine
A Randomized Clinical Trial on Atrial Fibrillation Screening by Using an Automated Electrocardiogram System in an Elderly Chinese Population
- Study name:A randomized clinical trial on atrial fibrillation screening by using an automated electrocardiogram system in an elderly Chinese population
- Rationale: Failure in the diagnosis and management of atrial fibrillation leads to high incidence of stroke and high mortality and disability. It is therefore imperative to diagnose and manage atrial fibrillation in a timely and effective fashion to prevent the complications of atrial fibrillation.
- Objective:The primary objective is to investigate whether more frequent ECG recordings and analyses with this automated ECG system (4 times/year) would significantly improve the detection of atrial fibrillation compared to a single annual ECG screen.The secondary objective is to explore whether even more frequent ECG recordings and analyses (8 times/year) would further improve the detection of atrial fibrillation.
- Study design: The present study is designed as a randomized controlled trial of parallel group (two).
- Study population: Men and women aged at least 65 years (n=7000) meet the inclusion/exclusion criteria.
- Randomization and treatment: Eligible subjects will be randomized in a 1:1 ratio into the usual and intensive screening groups with 3500 patients in each group, and within the intensive screening group in a 3:1 ratio into the intensive and more intensive subgroups with 2625 and 875 patients, respectively.
- Follow up: 1)Usual screening group: ECG recordings at baseline plus at 1 and 2 year of follow-up; three ECG recordings in total. 2)Intensive screening subgroup: ECG recordings at baseline plus quarterly during follow-up, at months 3, 6, 9, 12, 15, 18, 21 and 24; 9 ECG recordings in total. 3)More intensive screening subgroup: ECG recordings at baseline plus weekly during the first month of follow-up and quarterly afterwards, at weeks 1, 2, 3 and 4 and months 3, 6, 9, 12, 15, 18, 21 and 24; 13 ECG recordings in total.
- Sample size estimation: The number of required subject for the whole trial is 7000.
- Timeline: Start of subjects enrollment : December 2016; End of subjects enrollment : June 2017; End of study : October 2020
- Organization: The Centre for Epidemiological Studies and Clinical Trials, Ruijin Hospital, Shanghai, China.
Aperçu de l'étude
Statut
Complété
Les conditions
Description détaillée
- Study name:A randomized clinical trial on atrial fibrillation screening by using an automated electrocardiogram system in an elderly Chinese population
- Rationale: The incidence of atrial fibrillation rises continuously.The main detrimental effect of atrial fibrillation is its complication of stroke.Failure in the diagnosis and management of atrial fibrillation before the incidence of stroke leads to high mortality and disability. It is therefore imperative to diagnose and manage atrial fibrillation in a timely and effective fashion and prevent the complications of atrial fibrillation, by screening followed by the use of proven therapy, such as warfarin. An automated handheld ECG system based on a smartphone has recently become available for the screening of atrial fibrillation in high risk people.However, how this system can be most effectively used for the widespread screening of atrial fibrillation remains a question that requires investigation. Moreover, while repeated recordings will have a higher yield of atrial fibrillation diagnosis [11], it is not certain what constitutes an optimum number of ECG recordings balancing cost and effectiveness. The present study was therefore designed as a randomized controlled trial to investigate whether more frequent ECG recordings and analyses with this automated ECG system would significantly improve the detection of atrial fibrillation compared to a single annual ECG screen in elderly Chinese population in the community health centre.
- Objective:The primary objective is to investigate whether more frequent ECG recordings and analyses with this automated ECG system (4 times/year) would significantly improve the detection of atrial fibrillation compared to a single annual ECG screen.The secondary objective is to explore whether even more frequent ECG recordings and analyses (8 times/year) would further improve the detection of atrial fibrillation.
- Study design: The present study is designed as a randomized controlled trial of parallel group (two)
- Study population: Men and women aged at least 65 years (n=7000) will be recruited from 5 community health centers in the city of Shanghai. Eligible patients should meet the following inclusion and exclusion criteria.Inclusion Criteria:1) Age≥65 years; 2) Absence of atrial fibrillation at baseline; 3) Willing and capable to visit the outpatient clinic on his/her own for long-term follow-up. Exclusion Criteria:1) Known persistent or paroxysmal atrial fibrillation : Sinus rhythm after pharmacological or electric cardioversion, or radiofrequency ablation;Use of anticoagulant therapy and atrial fibrillation;Use of medication for heart rate control;Untreated atrial fibrillation.2) Serious life-threatening diseases, such as, cancer, severe cardiac, cerebral, liver, kidney diseases, etc;3) Difficult for long-term follow-up visit for any reason
- Randomization and treatment: Eligible subjects will be randomized in a 1:1 ratio into the usual and intensive screening groups with 3500 patients in each group, and within the intensive screening group in a 3:1 ratio into the intensive and more intensive subgroups with 2625 and 875 patients, respectively. 1)Usual screening group: ECG recordings at baseline plus at 1 and 2 year of follow-up; three ECG recordings in total. 2)Intensive screening subgroup: ECG recordings at baseline plus quarterly during follow-up, at months 3, 6, 9,12, 15, 18, 21 and 24; 9 ECG recordings in total. 3)More intensive screening subgroup: ECG recordings at baseline plus weekly during the first month of follow-up and quarterly afterwards, at weeks 1, 2, 3 and 4 and months 3, 6, 9, 12, 15, 18, 21 and 24; 13 ECG recordings in total. The automated electrocardiogram analysis system AliveCor® Heart Monitor will be used to perform ECG recordings and analysis for the immediate diagnosis of atrial fibrillation. At one and two year of follow-up, a follow-up questionnaire will be administered and physical examinations will be performed. All detected cases of atrial fibrillation will be further evaluated with a regular 12-lead ECG, and then referred to a specialists' centre for treatment.
- Follow up: In the usual screening group, patients will be followed-up in the community health centre at baseline and at 12 and 24 months of follow-up. In the intensive screening group, patients will be followed-up at baseline and at 3, 6, 9, 12, 15, 18, 21 and 24 months of follow-up. In the more intensive screening subgroup, patients will be followed-up weekly in the first month of follow-up and at 3, 6, 9, 12, 15, 18, 21 and 24 months of follow-up.
- Sample size estimation: The detection rate of atrial fibrillation by a single 12-lead ECG was 2.5% in elderly people living in Shanghai Of the 2.5%, only 0.5% were aware of atrial fibrillation. The detection rate of atrial fibrillation by an ECG recording at baseline and another in 12 months could be estimated to be 2.0% in elderly people without awareness of atrial fibrillation. The primary hypothesis is that the detection rate could be improved by 50% with more frequent ECG recordings. If =0.05, power=80% and one-sided test are assumed, and a 1:1 ratio would be used to assign patients to usual and intensive ECG screening, the study will require a sample size of 3013 subjects per group. In consideration of a 15% of super-addition, approximately 3500 eligible subjects per group should be enrolled. The number of required subjects for the whole trial is 7000.
- Timeline : Enrollment rate : 1000 patients /month ; Planned publication /presentation : October 2020; Start of subjects enrollment : December 2016; End of subjects enrollment : June 2017; End of study : October 2020
- Organization: The study will be conducted in a single research center (Ruijin Hospital) with 5 community health centers. Patients will be recruited and followed up by the community health physicians in 5 community health centers, under the supervision of cardiologists from Ruijin Hospital. ECG will be recorded in each of the community health centers. Atrial fibrillation will be initially diagnosed by the software build in the smart phone. ECG will also be transmitted to a cloud platform for storage and further analysis. If atrial fibrillation is detected, a 12-lead ECG will be immediately performed for the verification and confirmation of the diagnosis of atrial fibrillation. The identified patients with atrial fibrillation will be referred to the outpatient clinic of Ruijin Hospital for management.
Type d'étude
Observationnel
Inscription (Réel)
4348
Contacts et emplacements
Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.
Lieux d'étude
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Shanghai, Chine, 200025
- Shanghai Institite of Hypertension, Ruijin Hospital, Shanghai Jiaotong University School of Medicine
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Critères de participation
Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.
Critère d'éligibilité
Âges éligibles pour étudier
65 ans et plus (Adulte plus âgé)
Accepte les volontaires sains
Non
Sexes éligibles pour l'étude
Tout
Méthode d'échantillonnage
Échantillon de probabilité
Population étudiée
Men and women aged at least 65 years (n=7000) will be recruited from 5 community health centers in the city of Shanghai and randomized into a group of more frequent (4 or 8) ECG recordings and analyses (n=3500) and a group of a single ECG recording and analysis during 12 months of follow-up (n=3500).
The intensive screening group will be further randomly divided into intensive (n=2625) and more intensive subgroups (n=875).
Eligible patients should meet the following inclusion and exclusion criteria.
La description
Inclusion Criteria:
- Age 65 years;
- Absence of atrial fibrillation at baseline;
- Willing and capable to visit the outpatient clinic on his/her own for long-term follow-up.
Exclusion Criteria:
- Known persistent or paroxysmal atrial fibrillation 1)Sinus rhythm after pharmacological or electric cardioversion, or radiofrequency ablation; 2)Use of anticoagulant therapy and atrial fibrillation; 3)Use of medication for heart rate control; 4)Untreated atrial fibrillation.
- Serious life-threatening diseases, such as, cancer, severe cardiac, cerebral, liver, kidney diseases, etc;
- Difficult for long-term follow-up visit for any reason.
Plan d'étude
Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
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Usual screening group
ECG recordings at baseline plus at 1 and 2 year of follow-up; three ECG recordings in total.
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Intensive screening subgroup
ECG recordings at baseline plus quarterly during follow-up, at months 3, 6, 9 ,12, 15, 18, 21 and 24; 9 ECG recordings in total.
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More intensive screening subgroup
ECG recordings at baseline plus weekly during the first month of follow-up and quarterly afterwards, at weeks 1, 2, 3 and 4 and months 3, 6, 9, 12, 15, 18, 21 and 24; 13 ECG recordings in total.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
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Difference in the detection rate of atrial fibrillation between the usual and the intensive screening groups
Délai: 2 year
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2 year
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Mesures de résultats secondaires
Mesure des résultats |
Délai |
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Difference in the detection rate of atrial fibrillation between the intensive and more intensive screening subgroups within the intensive group
Délai: 2 year
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2 year
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Collaborateurs et enquêteurs
C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.
Les enquêteurs
- Chercheur principal: Jiguang Wang, MD, PhD, Shanghai Jiao Tong University School of Medicine
Publications et liens utiles
La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.
Publications générales
- Zhang W, Chen Y, Miao CY, Huang QF, Sheng CS, Shao S, Wang D, Xu SK, Lei L, Zhang D, Chen YL, Hu LX, Xia JH, Ye XF, Cheng YB, Wang Y, Guo QH, Li Y, Lowres N, Freedman B, Wang JG; AF-CATCH Investigators and Coordinators. Quarterly versus annual ECG screening for atrial fibrillation in older Chinese individuals (AF-CATCH): a prospective, randomised controlled trial. Lancet Healthy Longev. 2021 Aug;2(8):e470-e478. doi: 10.1016/S2666-7568(21)00138-0. Epub 2021 Jul 23.
- Zhang W, Chen Y, Hu LX, Xia JH, Ye XF, Cheng YB, Wang Y, Guo QH, Li Y, Lowres N, Freedman B, Wang JG; AF-CATCH Investigators and Coordinators. Changes in the CHA2DS2-VASC score as a predictor of incident atrial fibrillation in older Chinese individuals: the AF-CATCH study. Eur Heart J Open. 2022 Jul 25;2(4):oeac046. doi: 10.1093/ehjopen/oeac046. eCollection 2022 Jul.
Dates d'enregistrement des études
Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.
Dates principales de l'étude
Début de l'étude (Réel)
17 avril 2017
Achèvement primaire (Réel)
23 octobre 2020
Achèvement de l'étude (Réel)
23 octobre 2020
Dates d'inscription aux études
Première soumission
9 décembre 2016
Première soumission répondant aux critères de contrôle qualité
9 décembre 2016
Première publication (Estimation)
13 décembre 2016
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
4 novembre 2020
Dernière mise à jour soumise répondant aux critères de contrôle qualité
2 novembre 2020
Dernière vérification
1 novembre 2020
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- AF-CATCH
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
INDÉCIS
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