New registry tracks stroke prevention without blood thinners
NCT ID NCT05565209
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study follows 250 atrial fibrillation patients who received a left atrial appendage closure device to prevent strokes. The procedure blocks a small pouch in the heart where clots often form, allowing patients to avoid long-term blood thinners. Researchers will track how many patients have strokes or other clots over five years to see how well the procedure works in the long run.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Left atrial appendage closure device
- What this could lead to
- If successful, this study could confirm that left atrial appendage closure is a safe and effective long-term alternative to blood thinners for preventing strokes in atrial fibrillation patients.
- What could go wrong
- This is an observational registry, not a controlled trial, so results may not prove cause and effect. Long-term data collection may have missing or incomplete records.
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.
- Participants
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About 250 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2022
- Expected to finish
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Sep 2026
An estimate. End dates often move.
- Lead sponsor
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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.
Who is studied
A description of the population from which the groups or cohorts will be selected
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Any patient for whom an indication has been made for implantation of a device for the closure of the left atrial appendage without restriction of indication and regardless of the outcome of the procedure (implantation success or not) Exclusion Criteria: * Refusal of the patient to participate in this study * Minor patient * Patient not affiliated to the French social security system
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Assistance Publique Hôpitaux de Paris - CHU HENRI MONDOR
RECRUITINGCréteil, 94010, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Two ways to quiet a racing heart: trial pits hybrid ablation against standard catheter treatment
- Stroke's hidden heart rhythm clue under investigation
- Suture device may get heart patients walking sooner after leg vein procedures
- Two ways to catch a hidden heart rhythm after stroke
- Can an implanted heart monitor catch hidden irregular heartbeats after stroke?