Could a pacemaker plus ablation beat pills for heart failure patients with AFib?
NCT ID NCT06833138
First seen Jun 26, 2026 · Last updated Sep 11, 2026 · Updated 1 time
Summary
This study compares two approaches for people with permanent atrial fibrillation and heart failure with preserved ejection fraction. One group gets a pacemaker plus a procedure to ablate (destroy) the heart's AV node, while the other group continues with standard heart rate medications. The goal is to see if the pacemaker-ablation combo reduces deaths and heart failure hospitalizations over two years. About 266 participants will be followed with clinic visits at 3, 12, and 24 months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- pacemaker implantation and atrioventricular node ablation
- What this could lead to
- If this works, it could offer a better way to manage heart failure and atrial fibrillation, potentially reducing hospital stays and improving survival.
- What could go wrong
- This is a mid-sized trial (266 people) and the procedure carries risks like bleeding, infection, or heart damage. It may not prove better than current medications.
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
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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
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About 266 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Dec 2029
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.
- 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: * Permanent atrial fibrilation \> 6 months * Preserved Left Ventricular Ejection Fraction ≥ 50% * ≥ 1 heart failure hospitalization in the previous year * NYHA (New York Heart Association) score ≥ 2 * Presence of at least one of the following criteria related to diastolic dysfunction: * E/e' ratio \> 9 * Left Ventricular mass \> 95 g/m2 (female) or \> 115 g/m2 (male) with h/R ratio \> 0.42 * NT pro BNP (B-type Natriuretic Peptide) \> 365 pg/mL or BNP (B-type Natriuretic Peptide) \> 105 pg/mL * Narrow QRS ≤ 120 ms * Average heart rate ≤ 110/min on 24 hours Holter monitoring * Age over 18-year-old * Capacity to understand the nature of the study, legal ability and willingness to give informed consent * Patient covered by a social insurance * Effective contraception and a negative pregnancy test in women of a childbearing age Exclusion Criteria: * Patient eligible for atrial fibrilation catheter ablation * Life expectancy \< 12 months * Severe chronic kidney disease (estimated Glomerular Filtration Rate ≤ 20 ml/1,73 m2) * Severe respiratory disease (severe chronic obstructive pulmonary disease with Gold ≥ 3 and/or chronic oxygen therapy) * Class III obesity (Body Mass Index ≥ 40) * Confirmed or suspected infiltrative cardiomyopathy (amyloidosis, sarcoidosis, Fabry disease, others) * Obstructive hypertrophic cardiomyopathy * Previous implanted devices (Pacemaker / Implantable Cardioverter-Defibrillator / Cardiac Resynchronization Therapy) * Other indication for pacemaker implantation * Indication for implantable cardioverter-defibrillator * Ambulatory ≤ 50% of time * Pregnant women * Breast-feeding women
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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
17 sites. 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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CHRU de Caen - Hôpital Côte de Nacre
RECRUITINGCaen, 14000, France
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CHRU de Nancy - Hôpitaux de Brabois
NOT_YET_RECRUITINGVandœuvre-lès-Nancy, France
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CHRU de Tours - Hôpital Trousseau
RECRUITINGChambray-lès-Tours, 37170, France
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CHU Grenoble Alpes
NOT_YET_RECRUITINGGrenoble, 38043, France
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CHU de Besançon - Hôpital Jean Monjoz
NOT_YET_RECRUITINGBesançon, France
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CHU de Bordeaux - Hôpital Cardiologique du Haut-Lévèque
NOT_YET_RECRUITINGPessac, 33604, France
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CHU de Clermont-Ferrand - Hôpital Gabriel Montpied
NOT_YET_RECRUITINGClermont-Ferrand, France
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CHU de Lille - Institut Cœur-Poumons
NOT_YET_RECRUITINGLille, 59000, France
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CHU de Nantes - Hôpital Nord Laennec
NOT_YET_RECRUITINGNantes, 44093, France
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CHU de Poitiers - Centre Cardiovasculaire
RECRUITINGPoitiers, 86021, France
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CHU de Rennes - Hôpital Pontchallou
NOT_YET_RECRUITINGRennes, France
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CHU de Rouen - Hôpital Charles Nicolle
RECRUITINGRouen, 76000, France
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Clinique Millenaire
RECRUITINGMontpellier, 34000, France
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GHICL Allome - Hôpital St Philibert
RECRUITINGLomme, 59462, France
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Groupe Hospitalier La Rochelle-Ré-Aunis
RECRUITINGLa Rochelle, 17019, France
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Institut Arnault Tzanck
NOT_YET_RECRUITINGSaint-Laurent-du-Var, France
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Institut Montsouris
NOT_YET_RECRUITINGParis, France
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Other studies related to the condition(s) this trial covers.
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- Can a once-daily pill ease the burden of a common heart failure?
- A glowing dye could expose hidden heart scarring
- Can GLP-1 drugs improve heart function during exercise in Obesity-Related heart failure?
- Could tiny heart vessels hold the key to a common form of heart failure?
- Can a single freeze procedure tame stubborn atrial fibrillation?