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Lifestyle overhaul may keep atrial fibrillation at bay

NCT ID NCT03682991

Disease control Sponsor: Nova Scotia Health Authority 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether intensive lifestyle changes—like treating sleep apnea, cutting alcohol, exercising, losing weight, and managing blood pressure—can stop atrial fibrillation (AF) from coming back after a heart procedure called catheter ablation. About 509 people with AF who are at higher risk due to factors like obesity, high blood pressure, or smoking are taking part. The goal is to see if these changes reduce hospital visits and serious AF episodes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Aggressive risk factor control (lifestyle changes including sleep apnea treatment, alcohol reduction, exercise, weight loss, blood pressure management, and smoking cessation)
What this could lead to
If it works, this could show that intensive lifestyle changes help prevent atrial fibrillation from coming back after a heart procedure.
What could go wrong
This is a behavioral intervention, not a drug, so results depend heavily on patient adherence. The study is still ongoing, and it may not prove that these changes alone prevent AF recurrence.

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

509 people

The number who actually took part.

Started

Jul 2019

Expected to finish

Dec 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: Patients with symptomatic (CCS-SAF ≥2) paroxysmal or persistent atrial fibrillation despite rate control, desiring catheter ablation and at least two of the following: * BMI ≥ 27, * BP ≥140/90 mmHg or history of hypertension, * Prior stroke/transient ischemic attack, * Diabetes, * Heart failure (prior heart failure admission or left ventricle ejection fraction (LVEF) \<40%), * Age ≥ 65 years * Current smoker * Excessive Alcohol use Exclusion Criteria: * Permanent AF (AF lasting \> 3 years) * Prior catheter ablation for AF * New York Heart Association (NYHA) Class IV (Severe) heart failure, * Participation in a cardiac rehabilitation program within the last year, * Currently performing exercise training \>150 minutes/week of moderate to vigorous physical activity, * Unable to exercise, * Unable to give informed consent, * Other noncardiovascular medical condition making 1 year survival unlikely, * Less than 18 years of age.

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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

Contacts and locations

Locations

  • Foothills Hospital

    Calgary, Alberta, Canada

  • Hamilton Health Sciences Center

    Hamilton, Ontario, Canada

  • Kelowna General Health

    Kelowna, British Columbia, Canada

  • Laval Hospital

    Laval, Quebec, Canada

  • London Health Sciences Center

    London, Ontario, Canada

  • Mazankowski Alberta Heart Institute

    Edmonton, Alberta, Canada

  • McGill University Health Centre

    Montreal, Quebec, Canada

  • Montreal Heart Institute

    Montreal, Quebec, Canada

  • Ottawa Heart Institute

    Ottawa, Ontario, Canada

  • QE II Health Sciences Centre

    Halifax, Nova Scotia, B3H 3A7, Canada

  • Regina General Hospital

    Regina, Saskatchewan, Canada

  • Sacre Coeur Hospital

    Montreal, Quebec, Canada

  • Saint John Regional Hospital

    Saint John, New Brunswick, Canada

  • St. Mary's General Hospital

    Kitchener, Ontario, Canada

  • St. Michael's Hospital

    Toronto, Ontario, Canada

  • St. Paul's Hospital

    Vancouver, British Columbia, Canada

  • Sunnybrook Health Sciences Centre

    Toronto, Ontario, Canada

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