- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04405258
Left Atrial Posterior Wall Additional Isolation for Persistent Atrial Fibrillation Trial (LEAP-AF)
April 1, 2023 updated by: Institute for Clinical Effectiveness, Japan
Randomized Clinical Trial of Additional Left Atrial Posterior Wall Isolation for Persistent Atrial Fibrillation
The purpose for this study is to determine whether left posterior wall isolation (PWI) in addition to pulmonary vein isolation (PVI) is effective as ablation strategy for persistent atrial fibrillation (AF).
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Detailed Description
PVI is cornerstone of AF ablation.
However, clinical outcome of only PVI in patients with persistent AF is insufficient due to AF substrate extending to left atrium.
Strategy of catheter ablation for persistent AF is not established despite attempts of numerous left atrial substrate modifications.
Additional PWI on PVI is one of expected effective strategies for persistent AF, because PW originated from common tissue of PV and is considered to play a part in AF trigger and maintenance.
However, this strategy is also not established in the recent international consensus statement.
Following two reasons are considered.
One is the procedural difficulty in creating durable PWI, and another is the existence of patients who can recover by only PVI.
The latest technology, ablation index, can create durable PVI, and may create durable PWI.
Several reports suggested that PVI only strategy was sufficient in the patients with persistent AF who could maintain sinus rhythm after pharmacological or electrical cardioversion.
Therefore, we planed this randomized clinical trial that compared between PVI alone and additional PWI on PVI using ablation index in the patients with persistent AF without pharmacological sinus rhythm conversion.
Study Type
Interventional
Enrollment (Anticipated)
268
Phase
- Phase 4
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Keisuke Okawa, MD
- Phone Number: 5555 +81-87-811-3333
- Email: k-ookawa@chp-kagawa.jp
Study Contact Backup
- Name: Masahiko Takahashi, MD
- Phone Number: 5558 +81-87-811-3333
- Email: ma-takahashi@chp-kagawa.jp
Study Locations
-
-
Kagawa
-
Takamatsu, Kagawa, Japan, 760-8557
- Recruiting
- Kagawa Prefectural Central Hospital
-
Contact:
- Keisuke Okawa, MD
- Phone Number: 5555 +81-87-811-3333
- Email: k-ookawa@chp-kagawa.jp
-
Contact:
- Masahiko Takahashi, MD
- Phone Number: 5558 +81-87-811-3333
- Email: ma-takahashi@chp-kagawa.jp
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Patients scheduled for first catheter ablation of persistent atrial fibrillation
- Patients without conversion to sinus rhythm within 30 days after antiarrhythmic drug administration
- Patients with persisting duration of atrial fibrillation less than 3 years
- Patients with left atrial diameter less than 50mm
- Patients who can be followed up for 18 months
- Patients with written informed consent
Exclusion Criteria:
- Patients who can not be received adequate anticoagulation therapy
- Patients with history of myocardial infarction within 6 months
- Patients with history of open heart surgery
- Patients scheduled for open heart surgery
- Patients with severe valvular heart disease
- Patients during pregnancy
- Patients with expected life expectancy less than 1 year due to malignancy or non-cardiovascular disease
- Patients considered unsuitable for study by the attending physician
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
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: PVI alone
Pulmonary vein isolation, superior vena cava isolation, and cavotricuspid isthmus ablation
|
Pulmonary vein isolation, superior vena cava isolation, and cavotricuspid isthmus ablation
|
Active Comparator: PVI and PWI
Pulmonary vein isolation, superior vena cava isolation, cavotricuspid isthmus ablation, and left posterior wall isolation
|
Pulmonary vein isolation, superior vena cava isolation, cavotricuspid isthmus ablation, and left posterior wall isolation
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Recurrence of atrial tachyarrhythmia after 90-day blanking period of catheter ablation
Time Frame: 18 months
|
Recurrence of atrial tachyarrhythmia is defined atrial arrhythmia that needs admission, electrical cardioversion, and antiarrhythmic drug administration, and/or that persists more than 30 seconds.
|
18 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Recurrence of atrial fibrillation or atrial tachycardia after 90-day blanking period of catheter ablation
Time Frame: 18 months
|
Recurrence of atrial fibrillation or atrial tachycardia needs admission, electrical cardioversion, and antiarrhythmic drug administration, and/or that persists more than 30 seconds.
|
18 months
|
Recurrence of atrial fibrillation or atrial tachycardia within 90-day after catheter ablation
Time Frame: 90 days
|
Recurrence of atrial fibrillation or atrial tachycardia needs admission, electrical cardioversion, and antiarrhythmic drug administration, and/or that persists more than 30 seconds.
|
90 days
|
Repeated ablation of atrial tachyarrhythmia
Time Frame: 18 months
|
18 months
|
|
Recurrence of atrial fibrillation or atrial tachycardia after 90-day blanking period of repeated ablation
Time Frame: 18 months
|
18 months
|
|
Atrial Fibrillation Quality of Life Questionnaire
Time Frame: 18 months
|
Atrial Fibrillation Quality of Life Questionnaire
|
18 months
|
Complications of ablation procedure
Time Frame: 1 month
|
Complications of ablation procedure includes death, cardiac tamponade, pericardial effusion, systemic embolism, symptomatic strokes, hematoma, A-V shunt, pericarditis, phrenic nerve paralysis, A-V block, procedure-related infections, heart failure, atrio-esophageal fistula, esophageal vagus nerve injury
|
1 month
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Keisuke Okawa, MD, Kagawa Prefectural Central Hospital
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
June 8, 2020
Primary Completion (Anticipated)
December 31, 2025
Study Completion (Anticipated)
June 30, 2026
Study Registration Dates
First Submitted
May 22, 2020
First Submitted That Met QC Criteria
May 23, 2020
First Posted (Actual)
May 28, 2020
Study Record Updates
Last Update Posted (Actual)
April 4, 2023
Last Update Submitted That Met QC Criteria
April 1, 2023
Last Verified
April 1, 2023
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 947
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
IPD Plan Description
The data that support the findings of this study will be available from the data center upon reasonable request.
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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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