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NCT05136131Recruiting

QOL Improvement After Cardioversion of Persistent AF (QOL-CAFRCT)

Quality of Life Improvement After Cardioversion of Persistent AF - A Randomized Sham-Controlled Clinical Trial

Source: ClinicalTrials.gov · Last updated 1 Jul 2026

Brief summary (registry, in English)

Atrial fibrillation (AF) is a type of irregular heart rhythm due to electrical signal disturbances of the heart. It is a very common arrhythmia and the risk of developing AF increases with age and with other risk factors such as diabetes, high blood pressure, and underlying heart disease. The main complications of AF are heart failure and stroke. However, studies have shown that restoration of normal rhythm does not reduce these complications. Rather, these complications are mitigated by controlling the heart rate and using blood thinners to prevent stroke. Symptoms secondary to AF can occur due to the irregular heart rate and poor contraction in the atria, the top chambers of the heart. These symptoms include shortness of breath, fatigue, reduced exercise tolerance, and palpitations. Restoring sinus rhythm can sometimes alleviate these symptoms. Given that studies to date have not shown a difference in hard clinical endpoints between rate and rhythm control strategies, the decision to proceed with rhythm control depends on the patient symptom burden. Rhythm control strategies in patients with persistent AF include cardioversion back to sinus rhythm with long-term recurrence prevention via anti-arrhythmic drugs (AADs) or catheter ablation. However, many studies of these procedures omit a sham placebo control arm. No atrial fibrillation procedural intervention has been compared to a sham procedure. The cardioversion procedure can easily be compared to a "sham" alternative, as it is non-invasive with an expected response within days-to-weeks. Thus, a cardioversion versus "sham" cardioversion trial will allow us to truly assess the impact of a rhythm-control strategy on QOL. It is hypothesized that cardioversion of atrial fibrillation leads to significant improvement in quality of life (QOL) compared to sham cardioversion. Understanding the true QOL impact of sinus rhythm restoration in patients with persistent AF is of significant importance in guiding strategies for the management of AF. Hence, by evaluating what the true effect of cardioversion on QOL in this blinded study, we can better understand the role of medical management and AF ablation in our patients and assess resource allocation to these procedures.

Status (registry)
Recruiting
Study type
Interventional
Enrollment
100 (estimated)
First submitted
12 Nov 2021
Start date
10 Feb 2023
Primary completion date
May 2027
Lead sponsor
Ottawa Heart Institute Research Corporation
NCT number
NCT05136131

What you commit to

  • Study type: Interventional
  • Planned participants: 100
  • From 10 Feb 2023 to the primary completion date, May 2027
  • 2 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Prior catheter or surgical ablation for AF

Other illness

  • Patient with a history of noncompliance with medical therapy

Age

  • Pregnancy (all women of child bearing age and potential will have a negative BHCG test before enrolment)

Other

  • Known left-atrial appendage thrombus
  • Intolerance or contraindication to Amiodarone
  • Contraindication to appropriate anticoagulation
  • Patient is included in another randomized clinical trial
  • Patient is unable or unwilling to provide informed consent
  • Patient does not meet all of the above listed inclusion criteria
  • Breastfeeding
  • Patients for whom the investigator believes that the trial is not in the interest of the patient

Who the study is looking for

  • Patients age ≥ 18 years
  • Persistent atrial fibrillation
  • Unknown symptom burden related to AF

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (2)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Southlake Health
Coordinator of this site? Confirm its status
NewmarketCanadaRecruiting
University of Ottawa Heart Institute
Coordinator of this site? Confirm its status
OttawaCanadaRecruiting

This page is information, not medical advice. Discuss any trial with your doctor.