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Which pacemaker setting helps heart patients breathe easier?

NCT ID NCT06061978

Disease control Sponsor: University Hospital, Rouen Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 looks at 60 adults with rapid atrial fibrillation who already have a pacemaker and recently had a heart ablation procedure. Researchers want to see if pacing the heart's natural electrical system (left bundle branch) helps patients exercise better compared to standard right ventricular pacing. The main goal is to measure maximum oxygen use during exercise, which reflects heart and lung fitness.

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 60 people

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

Started

Nov 2023

Expected to finish

May 2027

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: 1/ Pacemaker implanted patient with LBTP lead and back-up right ventricular lead who subsequently underwent successful atrioventricular node ablation for rapid AF 2) NAV ablation procedure performed less than 15 days ago 3) Age ≥ 18 years 4) Woman of childbearing age with effective contraception (estrogen-progestin or intrauterine device or tubal ligation) for at least 1 month and for the duration of the study, and a negative urine pregnancy test by B-HCG at inclusion Or, Postmenopausal woman: confirmatory diagnosis (non-medically induced amenorrhea for at least 12 months prior to the inclusion visit). 5\) Membership of a social security scheme 6) Patient follow-up feasible 7) Patient has read and understood the information leaflet and signed the informed consent form Exclusion Criteria: 1. Impairment of autonomy such that a maximal cardiorespiratory effort test (VO2 Max test) cannot be performed under good conditions (ADL scale \< 5). 2. LVEF \< 40% at inclusion 3. Person deprived of liberty by an administrative or judicial decision, or person under court protection, sub-guardianship or curatorship. 4. Patient participating in another interventional trial 5. Any history of illness or psychological or sensory abnormality likely to prevent the subject from fully understanding the conditions required for participation in the protocol, or from giving informed consent. 6. Pregnant, parturient or breast-feeding women, or those without proven contraception

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Conditions

The condition(s) this trial relates to.

atrial fibrillation

As listed by the trial registrant

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

Atrial fibrillation rapid

How to take part

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

  1. The places running it

    1 site. 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

  • CHU de CAEN

    RECRUITING

    Caen, France

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