STOP AF First: Cryoballoon Catheter Ablation in an Antiarrhythmic Drug Naive Paroxysmal Atrial Fibrillation
STOP AF First
1 other identifier
interventional
225
1 country
24
Brief Summary
To provide data demonstrating the safety and effectiveness of the Arctic Front Advance™ Cardiac CryoAblation Catheter for the treatment of recurrent symptomatic paroxysmal atrial fibrillation, without the requirement that the subjects be drug refractory.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable atrial-fibrillation
Started Jun 2017
Typical duration for not_applicable atrial-fibrillation
24 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
April 4, 2017
CompletedFirst Posted
Study publicly available on registry
April 18, 2017
CompletedStudy Start
First participant enrolled
June 23, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 25, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
June 25, 2020
CompletedResults Posted
Study results publicly available
August 11, 2021
CompletedFebruary 13, 2025
February 1, 2025
3 years
April 4, 2017
June 22, 2021
February 11, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Percentage of Participants With Treatment Success at 12 Months After Antiarrhythmic Drug (AAD) Initiation or Ablation Utilizing the Arctic Front Advance™ Cardiac CryoAblation Catheter.
Treatment success after AAD initiation (control arm) or pulmonary vein isolation ablation procedure utilizing the Arctic Front Advance™ Cardiac CryoAblation Catheter (treatment arm). Treatment success is the opposite of treatment failure. Treatment failure was defined as any of the following: * Acute procedural failure (treatment arm only). * Documented AF/AT/AFL on ambulatory monitoring/12-lead ECG after the 90-day post-ablation blanking period (treatment)/AAD optimization period (control arm). Minimum of 30 seconds on ambulatory monitoring or 10 seconds on 12-lead ECG. * Any subsequent AF surgery or ablation in the left atrium. * Any subsequent cardioversion after the 90-day post-ablation blanking period (treatment)/AAD optimization period (control arm). * Class I or III antiarrhythmic drug (or sotalol) use after the 90-day blanking period (treatment arm only).
Randomization to 12 months
Primary Safety Endpoint - Rate of Composite List of Serious Adverse Events.
Measured by rate of composite list of serious adverse events in cryoablation-treated as randomized arm. Includes: * TIA within 7 days * Cerebrovascular accident within 7 days * Major bleed that requires transfusion or results in a 20% or greater fall in hematocrit (HCT) within 7 days * Development of a significant pericardial effusion within 30 days. (One that results in hemodynamic compromise, requires elective or urgent pericardiocentesis, or results in a 1-cm or more pericardial effusion as documented by echocardiography). * Symptomatic PV stenosis within 12 months; accompanied by one of the following: 50%-75% reduction in diameter of the pulmonary vein, with symptoms not explained by other conditions; OR \>75% reduction in diameter of the pulmonary vein * MI within 7 days * PNI unresolved at 12 months * AE fistula within 12 months * Major vascular complication that requires intervention, prolongs hospital stay, or requires hospital admission (within 7 days).
Randomization to 12 months
Secondary Outcomes (2)
Quality of Life Scores at Baseline Compared to 12 Months
Baseline and 12 Months
Healthcare Utilization
Initial treatment through 12 months.
Study Arms (2)
Anti-arrhythmic drug
ACTIVE COMPARATORCryoablation
EXPERIMENTALInterventions
Pulmonary vein isolation via ablation with cryoballoon catheter
Eligibility Criteria
You may qualify if:
- A diagnosis of symptomatic paroxysmal AF with the following documentation: (1) physician's note indicating recurrent self- terminating AF or paroxysmal AF; and (2) any ECG documented AF within 6 months prior to enrollment.
- Age 18-80
You may not qualify if:
- History of AF treatment with class I or III antiarrhythmic drug, including sotalol, with the intention to prevent an AF recurrence. However, patients pretreated with above AAD for less than 7 days with the intention to convert an AF episode are allowed.
- Prior persistent AF (cardioversion after 48 hours or continuous AF that is sustained \>7 days)
- Left atrial diameter greater than 5.0 cm
- Prior left atrial ablation or left atrial surgical procedure
- Presence or likely implant of a permanent pacemaker, biventricular pacemaker, loop recorder, or any type of implantable cardiac defibrillator (with or without biventricular pacing function)
- Body mass index (BMI) \>35 kg/m2
- Presence of any pulmonary vein stents
- Known presence of any pre-existing pulmonary vein stenosis
- Pre-existing hemidiaphragmatic paralysis
- Presence of any cardiac valve prosthesis
- Moderate or severe mitral valve regurgitation or stenosis
- Any cardiac surgery, myocardial infarction, percutaneous coronary intervention/ percutaneous transluminal coronary angioplasty or coronary artery stenting which occurred during the 90 day interval preceding the date the subject signed the Informed Consent Form
- Unstable angina
- New York Heart Association (NYHA) class III or IV congestive heart failure and/or known left ventricular ejection fraction (LVEF) less than 45%
- Diagnosis of primary pulmonary hypertension
- +14 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (24)
Grandview Medical Center
Birmingham, Alabama, 35243, United States
Alaska Heart Institute
Anchorage, Alaska, 50266-8209, United States
Hoag Hospital Newport Beach
Newport Beach, California, 92663, United States
MedStar Washington Hospital Center
Washington D.C., District of Columbia, 20010-3017, United States
Tallahassee Research Institute Inc
Tallahassee, Florida, 32308-4646, United States
BayCare Medical Group Cardiology
Tampa, Florida, 33607, United States
Wellstar Research Institute
Marietta, Georgia, 30060, United States
Krannert Institute of Cardiology
Indianapolis, Indiana, 46202, United States
Iowa Heart Center
West Des Moines, Iowa, 50266-8209, United States
Our Lady of the Lake Office of Research
Baton Rouge, Louisiana, 50266-8209, United States
Southcoast Health System
New Bedford, Massachusetts, 02740, United States
University of Michigan Health System - University Hospital
Ann Arbor, Michigan, 50266-8209, United States
Spectrum Health Hospitals
Grand Rapids, Michigan, 49503, United States
HealthEast Saint Josephs Hospital
Saint Paul, Minnesota, 55102-1062, United States
Bryan Heart
Lincoln, Nebraska, 07450-2726, United States
Hackensack University Medical Center
Hackensack, New Jersey, 07601, United States
The Valley Hospital
Ridgewood, New Jersey, 07450-2726, United States
Cleveland Clinic
Cleveland, Ohio, 44195-0001, United States
Ohio State University
Columbus, Ohio, 43210, United States
Integris Baptist Medical Center, Inc.
Oklahoma City, Oklahoma, 73112-4418, United States
Providence Saint Vincent Medical Center
Portland, Oregon, 97225, United States
Lehigh Valley Health
Allentown, Pennsylvania, 18105, United States
Geisinger Medical Center
Danville, Pennsylvania, 17821, United States
Aurora Cardiovascular Services
Milwaukee, Wisconsin, 50266-8209, United States
Related Publications (2)
Andrade JG, Moss JWE, Kuniss M, Sadri H, Wazni O, Sale A, Ismyrloglou E, Chierchia GB, Kaplon R, Mealing S, Bainbridge J, Bromilow T, Lane E, Khaykin Y. The Cost-Effectiveness of First-Line Cryoablation vs First-Line Antiarrhythmic Drugs in Canadian Patients With Paroxysmal Atrial Fibrillation. Can J Cardiol. 2024 Apr;40(4):576-584. doi: 10.1016/j.cjca.2023.11.019. Epub 2023 Nov 23.
PMID: 38007219DERIVEDWazni OM, Dandamudi G, Sood N, Hoyt R, Tyler J, Durrani S, Niebauer M, Makati K, Halperin B, Gauri A, Morales G, Shao M, Cerkvenik J, Kaplon RE, Nissen SE; STOP AF First Trial Investigators. Cryoballoon Ablation as Initial Therapy for Atrial Fibrillation. N Engl J Med. 2021 Jan 28;384(4):316-324. doi: 10.1056/NEJMoa2029554. Epub 2020 Nov 16.
PMID: 33197158DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Erika Pouliot
- Organization
- Medtronic
Study Officials
- PRINCIPAL INVESTIGATOR
Oussama Wazni, MD
The Cleveland Clinic
- PRINCIPAL INVESTIGATOR
Gopi Dandamudi, MD
Franciscan Heart & Vascular Associates at St. Joseph
- PRINCIPAL INVESTIGATOR
Steve Nissen, MD
The Cleveland Clinic
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- Yes
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
April 4, 2017
First Posted
April 18, 2017
Study Start
June 23, 2017
Primary Completion
June 25, 2020
Study Completion
June 25, 2020
Last Updated
February 13, 2025
Results First Posted
August 11, 2021
Record last verified: 2025-02
Data Sharing
- IPD Sharing
- Will not share