NCT04523649

Brief Summary

Stroke remains the leading cause of mortality and morbidity worldwide. Patients surviving the first ever stroke remain at high risk of stroke recurrence. While the cause of stroke recurrence is multifactional, atrial fibrillation (AF) has been recognized as one of the most important factors for stroke recurrence. Despite the fact that AF related stroke is highly preventable with long-term oral anticoagulation therapy particularly the non-vitamin K oral anticoagulants (NOAC), the arrhythmia is often not diagnosed until stroke recurrence due to its paroxysmal and asymptomatic nature. Diagnosing AF before stroke recurrence has been recognized as one of the most important objectives for stroke management. Strategies to detection AF in stroke survivors have been recommended including 7-day or 14-day Holter monitoring at the early post-stroke period. There's also study trial exploring the clinical application of insertable cardiac monitor to detect AF in patients with recent cryptogenic stroke. In the past decade, advance in ECG technology has made possible to record ECG using handheld smartphone accessory devices in household setting. Together with the rapid developing artificial intelligence-based ECG diagnosis and mobile communication, it is possible to remotely monitor hundreds of thousand ECGs from patients at risk of AF. Few randomized trials have assessed the effectiveness of handheld ECG recording device for AF detection in patients with history of stroke. Here we test the hypothesis that long-term home-based ECG monitoring will be more sensitive than standard care in detecting AF in patients with history of stroke but no documented AF for 24 months. Secondarily, we will investigate whether early detection of AF might confer a benefit on longer-term clinical outcomes.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,740

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jun 2022

Longer than P75 for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 19, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 21, 2020

Completed
1.8 years until next milestone

Study Start

First participant enrolled

June 1, 2022

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

March 15, 2022

Status Verified

February 1, 2022

Enrollment Period

2.6 years

First QC Date

August 19, 2020

Last Update Submit

February 27, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • First detection of AF

    First detection of AF by the handheld ECG, defined as an episode of irregular heart rhythm, without detectable P waves, lasting more than 30 seconds

    2 years

Secondary Outcomes (6)

  • Recurrent stroke

    2 years

  • Transient ischemic attack (TIA)

    2 years

  • Initiation of long-term anticoagulation therapy

    2 years

  • Hospitalization of heart failure

    2 years

  • Cardiovascular death

    2 years

  • +1 more secondary outcomes

Study Arms (2)

Home-based atrial fibrillation screening group

EXPERIMENTAL

Patients in this group will be given a handheld single lead ECG recorder (Comfit Healthcare Devices Limited, Hong Kong SAR, China) and a patient-facing smartphone application specially designed for the study, and they will be requested to record daily ECG and certain vital measurement.

Device: Remote atrial fibrillation screening with handheld single lead ECG recorder

Control group

NO INTERVENTION

Conventional medical care

Interventions

Patients in this group will be given a handheld single lead ECG recorder (Comfit Healthcare Devices Limited, Hong Kong SAR, China) and a patient-facing smartphone application specially designed for the study, and they will be requested to record daily ECG and certain vital measurement.

Home-based atrial fibrillation screening group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age \>= 18 years
  • history of ischemic stroke within 5 years
  • voluntarily agrees to participate by providing written informed consent

You may not qualify if:

  • previously documented AF and/or atrial flutter
  • long-term anticoagulation therapy
  • short life expectance (\< 1year) due to concomitant medical condition(s)
  • cardiac implantable electronic device
  • inability or refusal to provide inform consent
  • lack of skills in operating simple electronic devices
  • unavailability of a mobile network service in the place of residence

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Wong CK, Hai JJ, Lau YM, Zhou M, Lui HW, Lau KK, Chan KH, Mok TM, Liu Y, Feng Y, Tan N, Tam WC, Tam KC, Feng X, Zuo ML, Yin LX, Tan J, Zhang WJ, Jiang X, Huang X, Ye J, Liang Y, Jiang W, Lei Z, Huang D, Yue WS, Tan G, Yan BP, Evora MA, Chen JY, Siu CW. Protocol for Home-Based Solution for Remote Atrial Fibrillation Screening to Prevent Recurrence Stroke (HUA-TUO AF Trial): a randomised controlled trial. BMJ Open. 2022 Jul 15;12(7):e053466. doi: 10.1136/bmjopen-2021-053466.

MeSH Terms

Conditions

Myocardial Infarction

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesInfarctionIschemiaPathologic ProcessesPathological Conditions, Signs and SymptomsNecrosis

Study Officials

  • Chung-Wah David Siu, Prof

    The University of Hong Kong

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Chung-Wah David SIU, Prof

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Independent research officers and data staff responsible for data entry will be blinded from randomization assignment.
Purpose
SCREENING
Intervention Model
PARALLEL
Model Details: Prospective, multi-centered, randomized controlled, parallel-group study
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 19, 2020

First Posted

August 21, 2020

Study Start

June 1, 2022

Primary Completion

December 31, 2024

Study Completion

December 31, 2025

Last Updated

March 15, 2022

Record last verified: 2022-02

Data Sharing

IPD Sharing
Will share

Dataset used during the study will be available from the corresponding author on reasonable request from date of publication for 2 years.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
Dataset used during the study will be available from the corresponding author on reasonable request from date of publication for 2 years.
Access Criteria
Dataset used during the study will be available from the corresponding author on reasonable request from date of publication for 2 years.