STOP Persistent AF

February 11, 2025 updated by: Medtronic Cardiac Ablation Solutions
To demonstrate safety and effectiveness of the Arctic Front Advance™ and Freezor MAX® Cardiac CryoAblation Catheters for the treatment of drug refractory recurrent symptomatic persistent atrial fibrillation (AF).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
186

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
      • Quebec, Canada, G1V 4G5
        • Institut Universitaire de Cardiologie et de Pneumologie de Quebec
    • British Columbia
      • Victoria, British Columbia, Canada, V8T 1Z4
        • Victoria Cardiac Arrhythmia Trials
    • Ontario
      • London, Ontario, Canada, N6A 5A5
        • London Health Sciences Centre
  • Japan
      • Tokyo, Japan
        • Jikei University Hospital
      • Yokohama, Japan, 231-8682
        • Yokohama City Minato Red Cross Hospital
    • Tokyo
      • Bunkyō, Tokyo, Japan, 113-8519
        • Tokyo Medical and Dental University
  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85006
        • Banner-University Medical Center Phoenix
    • Colorado
      • Lakewood, Colorado, United States, 80228
        • Colorado Heart and Vascular
      • Loveland, Colorado, United States, 80538
        • Medical Center of the Rockies
    • Florida
      • Boca Raton, Florida, United States, 33432
        • Cardiac Arrhythmia Service
      • Jacksonville, Florida, United States, 32204
        • Saint Vincent's Medical Center
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern University
      • Evanston, Illinois, United States, 60201-1718
        • Northshore University Health System
    • Maryland
      • Baltimore, Maryland, United States, 21287-0005
        • The Johns Hopkins Hospital
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital
    • Missouri
      • Kansas City, Missouri, United States, 64111
        • St. Luke's Health System
    • New Jersey
      • Englewood, New Jersey, United States, 07631-1808
        • Englewood Hospital & Medical Center
    • New York
      • New York, New York, United States, 10029
        • Icahn School Of Medicine At Mount Sinai
      • New York, New York, United States, 10075-1851
        • Northwell Health (Lenox Hill Hospital and Staten Island University Hospital)
    • North Carolina
      • Asheville, North Carolina, United States, 28803
        • Asheville Cardiology Associates
    • Pennsylvania
      • Doylestown, Pennsylvania, United States, 18901
        • Doylestown Health Cardiology
    • Tennessee
      • Nashville, Tennessee, United States, 37232-8802
        • Vanderbilt University Medical Center
    • Texas
      • Dallas, Texas, United States, 75226
        • Baylor Research Institute
    • Washington
      • Seattle, Washington, United States, 98101
        • Virginia Mason Medical Center
      • Seattle, Washington, United States, 98122
        • Swedish Medical Center

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Documentation of symptomatic persistent AF: Defined as having a continuous episode lasting longer than 7 days but less than 6 months documented by consecutive ECG recordings OR Defined as having a continuous episode lasting longer than 7 days but less than 6 months documented by an ECG recording and one doctor note indicating patient had symptoms consistent with AF
  • Failure or intolerance of at least one Class I or III antiarrhythmic drug
  • Age 18 or older (or older than 18 if required by local law)

Exclusion Criteria:

  • Left atrial diameter > 5.0 cm (anteroposterior)
  • Prior left atrial ablation or surgical procedure (including left atrial appendage closures)
  • 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) within 12 months
  • Presence of any pulmonary vein stents
  • Presence of any pre-existing pulmonary vein stenosis
  • Pre-existing hemidiaphragmatic paralysis
  • Presence of any cardiac valve prosthesis
  • +3 and +4 mitral valve regurgitation or stenosis
  • Any cardiac surgery, myocardial infarction, percutaneous coronary intervention (PCI) / percutaneous transluminal coronary angioplasty (PTCA) or coronary artery stenting which occurred during the 3 month interval preceding the consent date
  • Unstable angina
  • New York Heart Association (NYHA) Class III or IV congestive heart failure and/or documented left ventricular ejection fraction (LVEF) less than or equal to 35% measure by acceptable cardiac testing (e.g. Transthoracic echocardiogram (TTE))
  • Primary pulmonary hypertension
  • Rheumatic heart disease
  • Thrombocytosis, thrombocytopenia
  • Any condition contraindicating chronic anticoagulation
  • Active systemic infection
  • Hypertrophic cardiomyopathy
  • Cryoglobulinemia
  • Uncontrolled hyperthyroidism
  • Any cerebral ischemic event (strokes or transient ischemic attacks (TIAs)) which occurred during the 6 month interval preceding the consent date
  • Any woman known to be pregnant or breastfeeding, or any woman of child bearing potential who is not on a reliable form of birth regulation method or abstinence
  • Life expectancy less than one year
  • Current or anticipated participation in any other clinical trial of a drug, device or biologic during the duration of the study not pre-approved by Medtronic
  • Known allergies or hypersensitivities to adhesives
  • Known drug or alcohol dependency
  • Unwilling or unable to comply fully with study procedures and follow-up

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment Arm
Subjects enrolled and treated with Arctic Front Advance Cardiac CryoAblation Catheter
Device: Arctic Front Advance Cardiac CryoAblation Catheter
Cryoablation
Other Names:
  • Freezor MAX Cardiac CryoAblation Catheter

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percent of Subjects Free From Treatment Failure at 12 Months After the Pulmonary Vein Isolation (PVI) Ablation Procedure.
Time Frame: 12 Months

Treatment failure is defined as any of the following components:

  • Acute procedural failure
  • Documented AF/atrial tachycardia (AT)/atrial flutter (AFL) after the 90 day blanking period
  • A reablation for the treatment of recurrent AF/AT/AFL after the 90 day blanking period
  • Class I or III antiarrhythmic drug (AAD) dose increase from the historic maximum ineffective dose (prior to the ablation procedure) or initiation of a new Class I or III AAD after the 90 day blanking period.
  • Ablation using radiofrequency (RF) in the left atrium

Blanking period is defined as the first 90 days after the index ablation procedure.

Acute procedural failure is defined as:

  • Inability to isolate all accessible targeted pulmonary veins (minimally assessed for entrance block and, where assessable, exit block) during the index procedure
  • Left atrial non-PVI ablations including but not limited to, ablation of linear lesions complex fractionated electrograms or non-PV triggers
12 Months
Percent of Subjects Free From a Primary Safety Event at 12 Months After the Pulmonary Vein Isolation (PVI) Ablation Procedure.
Time Frame: 12 months

A primary safety event is defined as a serious procedure-related or serious system-related adverse event including the following:

  • Transient ischemic attack (within 7 days of ablation procedure)
  • Cerebrovascular accident (within 7 days of ablation procedure)
  • Major bleeding that requires transfusion (within 7 days of ablation procedure)
  • Cardiac perforation, tamponade or pericardial effusion (within 7 days of ablation procedure)
  • Pulmonary vein stenosis (> 75% reduction within 12-months of ablation procedure)
  • Myocardial infarction (within 7 days of ablation procedure)
  • Phrenic nerve injury (unresolved at 12-months)
  • Atrio-esophageal fistula (within 12-months of ablation procedure)
  • Death (within 7 days of ablation procedure)
12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Quality of Life Between Baseline and 12 Months: Atrial Fibrillation Effect on QualiTy-of-life (AFEQT)
Time Frame: Baseline and 12 months
Atrial Fibrillation Effect on QualiTy-of-life (AFEQT) questionnaire completed at baseline and 12 month visits. The AFEQT instrument yields scores from 0 (representing the worst possible debilitation from AF) to 100 (representing no reduction in quality of life from AF).
Baseline and 12 months
Change in Quality of Life Between Baseline and 12 Months: Medical Outcome Study Short Form-12 (SF-12) Physical Component
Time Frame: Baseline and 12 months
Medical Outcome Study Short Form-12 (SF-12) questionnaire completed at baseline and 12 month visits. The SF-12 instrument has two composite scores, one for physical health and one for mental health. Each yields scores from 0 (representing the worst possible debilitation) to 100 (representing no reduction in quality of life).
Baseline and 12 months
Change in Quality of Life Between Baseline and 12 Months: Medical Outcome Study Short Form-12 (SF-12) Mental Component
Time Frame: Baseline and 12 months
Medical Outcome Study Short Form-12 (SF-12) questionnaire completed at baseline and 12 month visits. The SF-12 instrument has two composite scores, one for physical health and one for mental health. Each yields scores from 0 (representing the worst possible debilitation) to 100 (representing no reduction in quality of life).
Baseline and 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medtronic Cardiac Ablation Solutions

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Vivek Reddy, MD, Icahn School Of Medicine At Mount Sinai
  • Principal Investigator: Hugh Calkins, MD, Johns Hopkins University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 2, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 13, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 13, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 22, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 4, 2017

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 6, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 11, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • STOP Persistent AF

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

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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