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Can an implanted heart monitor catch hidden irregular heartbeats after stroke?

NCT ID NCT05717504

Diagnosis Sponsor: Luciano A. Sposato Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled This study
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 18, 2026 · Last updated Sep 18, 2026

Summary

Researchers are testing whether an implanted loop recorder can detect atrial fibrillation in people who have had a stroke. The device continuously monitors heart rhythm for up to a year or longer. The pilot trial enrolls 24 patients across three centers to see if a larger study of more than 1,000 people is feasible. Participants also complete a quality-of-life survey.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
an implantable loop recorder, a small device placed under the skin to continuously monitor heart rhythm
What this could lead to
If the approach works, it could help doctors detect irregular heartbeats after a stroke and guide treatment to prevent another stroke.
What could go wrong
This is a small pilot trial with 24 patients, so it cannot prove that long-term monitoring improves outcomes. Implanting a device carries small risks of infection or discomfort, and the study may show that a larger trial is not practical.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Expected to start

Nov 2023

An estimate. Start dates often move.

Expected to finish

Feb 2025

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: \- Adult patients with cortical or subcortical, cryptogenic or non-cryptogenic acute ischemic stroke Exclusion Criteria: * AF on 24-h inpatient or Holter monitoring * Atrial or ventricular thrombus * Other major-risk cardioembolic sources (e.g., mechanical valve) * Other indications (e.g., venous thromboembolism) or contraindications for OACs.

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Conditions

The condition(s) this trial relates to.

atrial fibrillation ischemic stroke stroke disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Atrial fibrillation Stroke

More trials for these conditions

Other studies related to the condition(s) this trial covers.