Using a MEMO wearable patch to find atrial fibrillation after an unexplained stroke
Official title: Atrial Fibrillation Detection Using MEMO Patch in Patients With Stroke of Unknown Cause: A Single-Center, Prospective, Exploratory Trial to Validate the Efficacy and Safety of Noninvasive Long-Term Electrocardiographic Monitoring
Run by Asan Medical Center · NCT07295769 · Data updated 2026-11-12
This trial will try a wearable single-lead ECG patch (MEMO Patch) to find previously missed atrial fibrillation in adults who had an embolic stroke of unknown cause.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 19 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Asan Medical Center Academic / other |
| Locations | 1 site (Seoul, Songpa-gu) |
| Status | Recruiting |
| Started | January 28, 2026 |
| Main results expected | May 15, 2028 |
| Study ends | February 15, 2029 |
| Registry record updated | February 6, 2026 |
| Trial ID | NCT07295769 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 19 or older with an embolic stroke of undetermined source who need ECG monitoring and can give informed consent are appropriate candidates.
✕Probably not a fit
People already known to have atrial fibrillation or atrial flutter, those with a clear cause of their stroke, those allergic to adhesives or hydrogels, or those unable to consent are unlikely to benefit from enrollment.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a prospective, single-center exploratory trial enrolling about 100 adults with embolic stroke of undetermined source (ESUS). Participants will undergo in-hospital telemetry monitoring with the MEMO Patch M and MEMO Cue for 12 hours up to 8 days alongside a 24-hour Holter, and investigators will review results to decide if an implantable loop recorder (ILR) is needed. At discharge all participants will wear MEMO Patch2 for up to 14 days for outpatient ECG monitoring, and results will be reviewed about one month later. The protocol is designed to determine how well the wearable patches detect previously undiagnosed atrial fibrillation and to inform ILR use.
Why it matters
Potential benefit: If successful, the device could help find hidden atrial fibrillation so patients can get anticoagulation and potentially reduce their risk of another stroke.
How similar studies have gone: Previous studies of prolonged ECG monitoring and wearable patches have increased atrial fibrillation detection compared with short-term monitoring, though implantable loop recorders remain the most sensitive method.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: Participants may take part in this clinical study only if they meet all of the following criteria: 1. Adults aged 19 years or older who voluntarily provide written informed consent to participate in the study 2. Patients diagnosed with ESUS (Embolic Stroke of Undetermined Source) 3. Patients who require in-hospital or out-of-hospital electrocardiographic (ECG) monitoring Exclusion Criteria: Participants who meet any of the following criteria cannot be enrolled in this clinical study: 1. Individuals already diagnosed with atrial fibrillation or atrial flutter 2. Individuals with a clearly identified cause of stroke 3. Individuals known to have allergic reactions to adhesives or hydrogels 4. Individuals who, in the investigator's judgment, have cognitive vulnerability that makes it difficult to understand the study information and voluntarily decide on participation 5. Any other individuals whom the principal investigator considers to be at potential risk by participating in the study or otherwise unsuitable for participation
Where it's running
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Asan Medical Center
Seoul, Songpa-gu, South Korea Recruiting
Study contacts
- Principal investigator: Bum Joon Kim — Asan Medical Center
- Study coordinator: Bum Joon Kim
- Email: medicj80@hanmail.net
- Phone: +82 02-3010-3981
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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This project tests whether an AI tool called SmartECG-AF can use a routine 12-lead ECG to predict which ESUS patients with an implantable cardiac monitor will develop atrial fibrillation.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.