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New pacemaker setting may cut AF risk in Slow-Heart patients

NCT ID NCT07645066

Disease control Sponsor: Shanghai Tong Ren 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 This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Aug 05, 2026 · Updated 2 times

Summary

This study tests whether pacing the heart from a specific spot (posterosuperior bundle) can lower the chance of atrial fibrillation (AF) in people with sinus node dysfunction (a slow or irregular heartbeat). About 300 adults who need a pacemaker will be randomly assigned to get pacing from the new spot or the standard spot. Researchers will track AF episodes lasting 6 minutes or longer for up to 2 years.

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

About 300 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Feb 2029

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: * Age ≥18 years * Indication for permanent pacemaker implantation, including: * Sinus node dysfunction, defined as at least one of the following: * Symptomatic sinus bradycardia * Tachy-brady syndrome * Chronotropic incompetence * Sinus pause / arrest * Atrioventricular block (if present); if ventricular pacing is required, left bundle branch area pacing is planned * Expected survival \>1 year * Panned implantation of a device capable of detecting atrial high-rate episodes * Willing and able to provide informed consent Exclusion Criteria: * Persistent atrial fibrillation (AF) (\>7 days), long-standing persistent AF, permanent AF, or prior atrioventricular node ablation * Prior cardiac implantable electronic device (CIED) requiring replacement, upgrade, or revision * Indication for cardioverter-defibrillator (ICD) or cardiac resynchronization therapy (CRT-D) * Prior cardiac surgery, severe hepatic or renal dysfunction, or other life-threatening systemic diseases * Acute myocardial infarction within 3 months before enrollment * Persistent left superior vena cava or dextrocardia * Pregnant or breastfeeding women, or women of childbearing potential not using effective contraception * Participation in another clinical trial that may interfere * Any condition that, in the opinion of the investigator, makes participation unsuitable

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Conditions

The condition(s) this trial relates to.

sick sinus syndrome atrial fibrillation prevention target

As listed by the trial registrant

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

Cardiac pacing Pacing therapy

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    10 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Affiliated Hospital of Zunyi Medical College

    Zunyi, Guizhou, China

  • China Medical University affiliated AnQing Municipal Hospital

    Anqing, Anhui, China

  • Fudan University affiliated Huadong Hospital

    Shanghai, Shanghai Municipality, China

  • Shanghai Jiaotong University affiliated Shanghai Ninth People's Hospital

    Shanghai, Shanghai Municipality, China

  • Shanghai Jiaotong University affiliated Shanghai Sixth People's Hospital

    Shanghai, Shanghai Municipality, China

  • Shanghai University of Traditional Chinese Medicine affiliated Putuo Hospital

    Shanghai, Shanghai Municipality, China

  • Tong Ren Hospital, Shanghai Jiaotong University School of Medicine

    Shanghai, Shanghai Municipality, 200336, China

  • Tongji University School of Medicine affiliated Tongji University

    Shanghai, Shanghai Municipality, China

  • Tongling People's Hospital

    Tongling, Anhui, China

  • Wuhan Asia General Hospital

    Wuhan, Hubei, China

More trials for these conditions

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