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Small study explores how heart rhythm treatment affects brain function

NCT ID NCT04508491

Knowledge-focused Sponsor: National Taiwan University Hospital 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 This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at 9 people with persistent atrial fibrillation (a type of irregular heartbeat) to see if different treatments affect thinking skills differently. Participants were given standard care and had their cognitive function measured with questionnaires and brain scans. The goal was to find which treatment strategy might best preserve memory and thinking.

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.

Participants

9 people

The number who actually took part.

Started

Nov 2020

Finished

Feb 2025

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: 1. Those who meet the diagnosis of persistent atrial fibrillation, meet one of the following conditions: * The twelve-lead electrocardiogram is used to diagnose atrial fibrillation, and to cooperate with clinical diagnosis. * 24 hours ECG diagnosis 100% atrial fibrillation, with clinical diagnosis. * The seven-day ECG recorder diagnosed 100% atrial fibrillation. 2. Willing to accept treatment recommended by doctors, containing anticoagulant, and cooperate with examination and treatment in the coming year. Exclusion Criteria: 1. Unwilling to sign the clinical trial consent form. 2. Unable to complete the cognitive function questionnaire. 3. Unable to complete brain MRI examination due to various reasons

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Conditions

The condition(s) this trial relates to.

atrial fibrillation persistent atrial fibrillation

As listed by the trial registrant

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

Atrial fibrillation, persistent Cognitive function

Contacts and locations

Locations

  • National Taiwan University Hospital

    Taipei, Taiwan

More trials for these conditions

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