Pulsed Field Ablation (PFA) vs Anti-Arrhythmic Drug (AAD) Therapy as a First Line Treatment for Persistent Atrial Fibrillation
AVANT GUARD
A Prospective Randomized Multicenter Global Study Comparing Pulsed Field Ablation (PFA) Versus Anti-Arrhythmic Drug (AAD) Therapy as a First Line Treatment for Persistent Atrial Fibrillation
1 other identifier
interventional
484
12 countries
59
Brief Summary
The purpose of this study is to establish the safety and effectiveness of pulsed field ablation as a first-line ablation treatment for subjects with persistent atrial fibrillation as compared to subjects who received an initial treatment with anti-arrhythmic drugs.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Dec 2023
Longer than P75 for not_applicable
59 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 17, 2023
CompletedFirst Posted
Study publicly available on registry
October 23, 2023
CompletedStudy Start
First participant enrolled
December 28, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 4, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
February 4, 2028
ExpectedMarch 31, 2026
March 1, 2026
2.1 years
October 17, 2023
March 26, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Rate of randomized PFA or PFA Assigned subjects with PFA System inserted into the body, during the index or repeat PFA procedure during blanking period, with device or procedure-related Composite Adverse Events that is serious.
Defined Composite Adverse Events: Day 0 through Day 7: * Gastric motility / pyloric spasm disorders * Heart block * Myocardial infarction * Peripheral or organ thromboembolism * Pulmonary edema * Stroke/ Cerebrovascular accident (CVA) * Transient ischemic attack (TIA) * Unresolved phrenic nerve palsy / paresis * Vascular access complications Day 0 through Day 30: * Cardiac tamponade / perforation * Cardiovascular or pulmonary adverse event * Death * Pericarditis Day 0 through Month 12: * Atrio-esophageal fistula * Pulmonary vein stenosis
12-Months
Rate of intent to treat subjects with treatment success from the pulse field ablation treatment and Anti-Arrhythmic Drug treatment.
Defined Treatment Success: PFA and AAD Treatment Arms: • Amiodarone freedom from randomization to Month 12 unless previously an acute or chronic primary effectiveness failure. PFA Treatment Arm: • Acute Success - Isolation of attempted pulmonary veins and left atrial posterior wall during blanking period with PFA system And Chronic Success: Freedom during blanking period to Month 12 of: * Occurrence ≥ 1 hr of asymptomatic or ≥ 30 sec of symptomatic Atrial Fibrillation (AF), Atrial Flutter (AFL), or Atrial Tachycardia (AT) * Any re-ablation for AF, AFL, or AT * Any electrical cardioversion for AF, AFL, or AT * Any Class I or III AAD use AAD Treatment Arm: Acute Success - Ablation not performed in blanking period Chronic Success - Freedom after blanking period through Month 12 of: * Detectable occurrence ≥ 1 hr of asymptomatic or ≥ 30 sec of symptomatic AF, AFL, or AT * Electrical cardioversion for AF, AFL, or AT * Any ablation for AF, AFL, or AT
12-Months
Secondary Outcomes (1)
Atrial fibrillation burden between the pulsed field ablation and anti-arrhythmic drug arm, as the LUX-Dx Insertable Cardiac Monitor measures and defined as proportion of time individual spends in AF during a period (expressed as a percentage).
12, 24, and 36 Months
Study Arms (2)
Pulsed Field Ablation (PFA)
EXPERIMENTALPulsed Field Ablation (PFA) is used as the initial treatment for subjects with persistent atrial fibrillation (AF)
Anti-Arrhythmic Drug (AAD)
ACTIVE COMPARATORAnti-Arrhythmic Drug (AAD) is used as the initial treatment for subjects with persistent atrial fibrillation (AF)
Interventions
Subjects will undergo a pulsed field ablation procedure using the FARAPULSE™ Pulsed Field Ablation (PFA) System for the isolation of pulmonary veins and posterior wall.
Anti-Arrhythmic Drugs (AADs) including, Flecainide, Sotalol, Propafenone, Dofetilide, and Dronedarone will be prescribed and monitored in accordance with local clinical practice and already established guideline-directed therapy for patients with persistent atrial fibrillation (AF).
Eligibility Criteria
You may qualify if:
- Age ≥ 18 years of age, or older if specified by local law
- Have symptomatic persistent AF, confirmed by both:
- a. Documentation, within 180 days of randomization, or treatment assignment for roll-in subjects, of either: i. A 24-hour continuous ECG recording (from any regulatory cleared rhythm monitoring device) confirming continuous AF, OR ii. Two ECGs (from any regulatory cleared rhythm monitoring device) showing continuous AF taken at least 7 days apart b. Documentation, such as physician note, of persistent continuous AF for \> 7 days and ≤ 365 days
- Willing and capable of providing informed consent
- Willing and capable of participating in all testing associated with this clinical investigation at an approved clinical investigational center
- Willing to receive LUX-Dx™ insertable cardiac monitor (ICM) during the study or already has a LUX-Dx™ ICM that was inserted ≤ 6 months(i.e., within 180 days of consent
You may not qualify if:
- Treated with AAD (Class I or III) ≤ 6 months (i.e., within 180 days) before enrollment,
- More than 7-day history of therapeutic AAD use (Class I or III), or
- ≥ 24 hours amiodarone, i Note Pill-in-the-pocket AAD use, is permitted.
- Treated with AAD ( Class I or III) \> 6 months (i.e., more than 180 days) before enrollment and experienced AAD failure (adverse drug effects or frequent AF episodes)
- Contraindication to, or unwillingness to use, AADs (Class I and III, excluding amiodarone)
- Contraindication to PFA treatment
- Contraindication to, or unwillingness to use, systemic anticoagulation, or acceptable alternatives, pre-, intra-, and post-procedure to achieve adequate anticoagulation.
- Any of the following atrial conditions:
- Left atrial (LA) anteroposterior diameter ≥ 5.5 cm, or, if LA diameter not available, non-indexed volume \>100 ml, as documented by physician note or imaging (Note: if both values are available, only the LA diameter will be used to confirm eligibility criteria)
- Any prior atrial endocardial, epicardial or surgical ablation procedure for arrhythmia, other than right sided cavotricuspid isthmus ablation or for right sided supraventricular tachycardia
- Current atrial myxoma
- Any PV abnormality, stenosis, or stenting (common and middle PVs are admissible)
- Current left atrial thrombus
- Any of the following cardiovascular conditions:
- History of sustained ventricular tachycardia or any ventricular fibrillation
- +44 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (62)
University of Alabama at Birmingham
Birmingham, Alabama, 35249-7333, United States
Banner University Medical Center Phoenix
Phoenix, Arizona, 85006, United States
Phoenix Cardiovascular Research Group
Phoenix, Arizona, 85018, United States
Arrhythmia Research Group
Jonesboro, Arkansas, 72401, United States
Scripps Memorial Hosptial
La Jolla, California, 92037, United States
Stanford University Medical Center
Palo Alto, California, 94305-5406, United States
Cardiology Associates Medical Group, Inc
Ventura, California, 93003, United States
HCA Florida Mercy Hospital
Miami, Florida, 33133, United States
Sarasota Memorial Hospital
Sarasota, Florida, 34239, United States
Tallahassee Memorial Hospital
Tallahassee, Florida, 32308, United States
St. Joseph's Hospital
Tampa, Florida, 33614, United States
Emory University Hospital
Atlanta, Georgia, 30342, United States
Memorial Health University Medical Center
Savannah, Georgia, 31404, United States
St. John's Hospital
Springfield, Illinois, 62701, United States
Community Heart and Vascular Hospital
Indianapolis, Indiana, 46250, United States
Mercy Hospital Medical Center-Hospital
West Des Moines, Iowa, 50266, United States
Baptist Health Lexington
Lexington, Kentucky, 40503, United States
Johns Hopkins Hospital
Baltimore, Maryland, 21287, United States
Brigham and Women's Hospital
Boston, Massachusetts, 02115, United States
Southcoast Physicians Group
Fall River, Massachusetts, 02720, United States
University of Michigan Hospitals
Ann Arbor, Michigan, 48108, United States
Corewell Health
Grand Rapids, Michigan, 49503, United States
Mayo Clinic Foundation-Hospital
Rochester, Minnesota, 55905, United States
Catholic Medical Center
Manchester, New Hampshire, 03102, United States
Valley Hospital
Paramus, New Jersey, 07652, United States
Northwell Health
Bay Shore, New York, 11706, United States
Kaleida Health
Buffalo, New York, 14203, United States
Weill Cornell Medical University
New York, New York, 10021, United States
Good Samaritan - Suffern
Suffern, New York, 10901, United States
Wake Forest University School of Medicine
Winston-Salem, North Carolina, 27157, United States
Bethesda North Hospital
Cincinnati, Ohio, 45242, United States
Cleveland Clinic
Cleveland, Ohio, 44195, United States
OhioHealth Research and Innovation Institute - Riverside Methodist Hospital
Columbus, Ohio, 43214, United States
Oklahoma Heart Institute
Tulsa, Oklahoma, 74104, United States
York Hospital
York, Pennsylvania, 17403, United States
Vanderbilt University Medical Center
Nashville, Tennessee, 37232, United States
University of Texas Medical Branch
Galveston, Texas, 77555-0737, United States
Orion Medical
Houston, Texas, 77034, United States
Christus Trinity Mother Frances Health System
Tyler, Texas, 75701, United States
Intermountain Medical Center
Murray, Utah, 84107, United States
Chippenham & Johnston-Willis Hospital (CJW)
Richmond, Virginia, 23225, United States
Aurora St. Luke's Medical Center
Milwaukee, Wisconsin, 53215, United States
The Prince Charles Hospital
Chermside, Queensland, 4032, Australia
Royal Adelaide Hospital-Hospital
Adelaide, South Australia, 5000, Australia
Monash Medical Centre
Clayton, Victoria, 3168, Australia
Medizinische Univ.-Kliniken Graz-Hospital
Graz, 8036, Austria
St. Jan
Bruges, B-8000, Belgium
Hamilton General Hospital
Hamilton, Ontario, L8L 2X2, Canada
Institut universitaire de Cardiologie et de Pneumologie de Quebec
Québec, Quebec, G1V 4G5, Canada
Klinicki Bolnicki Centar Split
Split, 21 000, Croatia
CHU Grenoble - Hopital Michallon
Grenoble, 38043, France
Cardioangiologisches Centrum Bethanien
Frankfurt, 60431, Germany
Staedtisches Klinikum Karlsruhe
Karlsruhe, 76133, Germany
Queen Mary Hospital
Hong Kong, 999077, Hong Kong
Prince of Wales Hospital
Shatin, 999077, Hong Kong
AOU delle Marche - PO GM Lancisi
Ancona, AN, 60126, Italy
Centro Cardiologico Monzino
Milan, MI, 20138, Italy
Maria Cecilia Hospital SPA
Cotignola, RA, 48010, Italy
Fondazione PTV - Policlinico Tor Vergata
Roma, 00133, Italy
National Heart Centre Singapore
Singapore, 169609, Singapore
Hospital Universitario La Fe
Valencia, Spain
Taipei Veterans General Hospital-Hospital
Taipei, 1127, Taiwan
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Oussama Wazni, M.D.
The Cleveland Clinic
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 17, 2023
First Posted
October 23, 2023
Study Start
December 28, 2023
Primary Completion
February 4, 2026
Study Completion (Estimated)
February 4, 2028
Last Updated
March 31, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share