- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03295422
Comparison of Two Pulmonary Vein Ablation Techniques for Persistent AF
Investigator Initiated Randomized Controlled Trial Comparing Two Radiofrequency Ablation Strategies in Patients With Persistent Atrial Fibrillation
Study Overview
Status
Intervention / Treatment
Detailed Description
Atrial fibrillation, the most common type of cardiac arrhythmia in clinical practice, affects approximately 2.7 million U.S. adults. Percutaneous catheter ablation is an effective treatment option for individuals with persistent AF. Pulmonary vein isolation (PVI) has emerged as the gold standard for paroxysmal AF with excellent success rates, however, individuals with persistent AF procedural efficacy from pulmonary vein isolation is not optimal. Therefore, improved ablation strategies for these individuals are needed.
This randomized controlled trial will compare two radiofrequency ablation strategies, PVI alone and pulmonary vein isolation plus left posterior atrial wall (LPAW) isolation in individuals with persistent AF. Both strategies are currently used to treat persistent AF, but no randomized controlled trial ahs been conducted to investigate which strategy is more efficacious.
Two-hundred subjects will be randomized into groups of 50 to undergo a radiofrequency ablation procedure for AF. For group 1, a series of radiofrequency applications will be delivered around both sets of pulmonary veins. For group 2, a series of radiofrequency applications will be delivered around both sets of pulmonary veins and along a roof and low posterior line of the left atrial wall.
All subjects will be followed at 1 month, 3 months, 6 months, and 1 year post ablation. If indicated, antiarrhythmic drugs will be discontinued. For the first month, subjects will receive a continuously recording electrocardiogram heart card to monitor for AF, and then two-week ambulatory monitors at 3 months and one year post ablation.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Christopher E Woods, MD, PhD
- Phone Number: 650-652-8600
- Email: WoodC@sutterhealth.org
Study Contact Backup
- Name: Ann Campbell, RN, MBA
- Phone Number: 650-367-5950
- Email: ann.campbell@dignityhealth.org
Study Locations
-
-
California
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Redwood City, California, United States, 94062
- Recruiting
- Dignity Health, Sequoia Hospital
-
Contact:
- Ann Campbell, RN, MBA
- Phone Number: 650-367-5950
- Email: ann.campbell@dignityhealth.org
-
Contact:
- Christopher E Woods, MD, PhD
- Phone Number: 650-652-8600
- Email: woodsC@sutterhealth.org
-
Principal Investigator:
- Christopher E Woods, MD, PhD
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Have symptomatic persistent AF (i.e., a sustained episode lasting more than 7 days).
- Refractory to at least one antiarrhythmic agent.
- Undergoing ablation for the first time.
Exclusion Criteria:
- Paroxysmal AF
- Sustained atrial fibrillation lasting more than 3 years
- Left atrial diameter of 60 mm or greater
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: RF ablation PVI alone
RF catheter ablation of pulmonary veins alone
|
A series of RF applications will be delivered around both sets of pulmonary veins with complete entry and exit block obtained around the antrums of all 4 pulmonary veins.
Other Names:
|
Experimental: RF ablation PVI plus LPAW
RF catheter ablation PVI plus left atrial posterior wall
|
A series of RF applications will be delivered around both sets of pulmonary veins with complete entry and exit block obtained around the antrums of all 4 pulmonary veins.
In addition, a roof and posterior line will be placed in the left atrium to achieve entrance and exit block on the posterior wall.
Entry block will be confirmed by placing a circular mapping catheter in multiple locations along the posterior wall and confirming lack of presence of any local potentials.
Exit block will be confirmed on the posterior wall with pacing at 10 amps from the ablation catheter at multiple locations within the box as well as all lines.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
1-year freedom from recurrent atrial arrhythmias
Time Frame: 1 Year
|
The primary hypotheses that PVI+PI will lead to a greater percentage of patients free from atrial arrhythmias after single ablation procedures than PVI alone.
|
1 Year
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Christopher E Woods, MD, PhD, Dignity Health, Sequoia Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Persistent AF Study 01
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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