Clinical Implication of Atrial Fibrillation Detection Using Wearable Device in Patients With Cryptogenic Stroke (CANDLE-AF)

May 17, 2026 updated by: Ewha Womans University Mokdong Hospital

Clinical Implication of Atrial Fibrillation Detection Using Wearable Device in Patients With Cryptogenic Stroke - The Comparison Between Short-term Continuous Patch and Long-term Discontinuous Monitoring

It is known that atrial fibrillation after stroke significantly increases the risk of stroke or systemic embolism. Accordingly, efforts have been made to detect hidden atrial fibrillation and apply treatment using anticoagulants instead of antiplatelet agents. The conventional method used to screen for atrial fibrillation in stroke patients who did not have atrial fibrillation at first admission is 24-hour Holter monitoring. This study will compare the detection rate of atrial fibrillation with discontinuous ECG monitoring three times a day and 72 hours of single-lead ECG patch monitoring compared with the conventional Holter test.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
337

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • South Korea
      • Daegu, South Korea
        • Daegu Catholic University Medical Center
      • Incheon, South Korea, 21565
        • Gachon University Gil Hospital
      • Seoul, South Korea, 02447
        • Kyung Hee University Hospital
      • Seoul, South Korea, 08308
        • Korea University Guro Hospital
      • Seoul, South Korea, 06273
        • Yonsei University Health System, Severance Hospital
    • Gyeonggi-do
      • Yongin, Gyeonggi-do, South Korea, 17046
        • Yonsei University Health System, Yongin Severance Hospital
    • Seoul
      • Gangseo, Seoul, South Korea, 07985
        • Ewha Womans University Seoul Hospital
      • Seongdong, Seoul, South Korea, 04763
        • Hanyang University Seoul Hospital
      • Yangcheon, Seoul, South Korea, 07985
        • Ewha Womans University Mokdong Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Newly diagnosed brain infarction
  • No history and diagnosis of atrial fibrillation at the time of admission
  • Rejected implantable loop recorder
  • Informed consent

Exclusion Criteria:

  • Cannot use KardiaMobile system alone or with the help of others

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Screening
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Conventional Holter Monitoring Group
Holter monitoring is performed for 24 hours each at 1, 3, and 12 months after the diagnosis of stroke, and if atrial fibrillation is detected, the antiplatelet drug is changed to an anticoagulant.
Device: 24-hour Holter monitoring
Continuous 24-hour monitoring by Holter monitor at 1, 6, 12 month after stroke
Experimental: Discontinuous Monitoring Group
Discontinuous ECG monitoring by finger contact is performed 3 times every day for 12 months after a stroke diagnosis. If atrial fibrillation is detected, the antiplatelet drug is changed to an anticoagulant.
Device: Discontinuous monitoring
Discontinuous ECG monitoring by finger contact every day
Experimental: Single-lead Continuous Patch Group
Continuous 72 hours of ECG monitoring by a single-lead patch is performed at a week and 1, 3, 6, 12 months after a stroke diagnosis. If atrial fibrillation is detected, the antiplatelet drug is changed to an anticoagulant.
Device: Continuous single-lead ECG Patch
Continuous 72hr ECG monitoring by a single-lead patch at 3, 6, 9, 12 months after stroke

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Atrial fibrillation detection rate
Time Frame: Until 1 year after stroke
Compare detection rates of each arms
Until 1 year after stroke

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Major adverse cardiac and cerebrovascular event
Time Frame: Until 1 year after stroke
composite of nonfatal stroke, nonfatal myocardial infarction, and cardiovascular death
Until 1 year after stroke
Change from antiplatelet therapy to anticoagulants following AF detection
Time Frame: Until 1 year after stroke
Change from antiplatelet therapy to anticoagulants following AF detection
Until 1 year after stroke
Re-admission
Time Frame: Until 1 year after stroke
Re-admission
Until 1 year after stroke
All-cause death
Time Frame: Until 1 year after stroke
All-cause death
Until 1 year after stroke

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Major bleeding
Time Frame: Until 1 year after stroke
Fatal or overt bleeding with a drop in hemoglobin level of at least 2 g/dL or requiring transfusion of at least 2 units packed blood cells, or critical anatomical site hemorrhage (e.g., intracranial, retroperitoneal)
Until 1 year after stroke

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Ewha Womans University Mokdong Hospital

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Korea Health Industry Development Institute

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Junbeom Park, M.D., PhD., Ewha Womans University Mokdong Hospital
  • Principal Investigator: Tae-Jin Song, MD, Ewha Womans University Seoul Hospital
  • Principal Investigator: Dong-Hyeok Kim, MD, Ewha Womans University Seoul Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 17, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 15, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 5, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 5, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 12, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 20, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 17, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CANDLE-AF Trial

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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