Intracardiac CrYoablation for AtrioVentricular Nodal Reentrant Tachycardia

This study is currently recruiting participants.
Verified January 2013 by Medtronic Atrial Fibrillation Solutions
Sponsor:
Information provided by (Responsible Party):
Medtronic Atrial Fibrillation Solutions
ClinicalTrials.gov Identifier:
NCT01426425
First received: August 29, 2011
Last updated: February 12, 2013
Last verified: January 2013
  Purpose

ICY-AVNRT (Intracardiac CrYoablation for AtrioVentricular Nodal Reentrant Tachycardia) is a prospective multi-center, nonrandomized, single arm, controlled, unblinded, investigational clinical study. The purpose of this clinical study is to demonstrate the safety and effectiveness of the Freezor® Xtra Cardiac CryoAblation Catheter for the cryoablation of the conducting tissues of the heart in the treatment of patients with atrioventricular nodal reentrant tachycardia (AVNRT) using an endocardial approach.


Condition Intervention Phase
AtrioVentricular Nodal Reentrant Tachycardia
Supraventricular Tachycardia
Heart Disease
Device: Freezor Xtra Cryoablation Catheter
Phase 3

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: ICY-AVNRT (Intracardiac CrYoablation for AtrioVentricular Nodal Reentrant Tachycardia)

Resource links provided by NLM:


Further study details as provided by Medtronic Atrial Fibrillation Solutions:

Primary Outcome Measures:
  • Number of Participants with Successful Procedures and No AtrioVentricular Nodal Reentrant Tachycardia Recurrence [ Time Frame: 6 months ] [ Designated as safety issue: No ]

    Subjects must meet both of the following conditions to be considered as a chronic effectiveness success:

    • The inability to induce more than one echo beat by the same pacing maneuvers that induced atrioventricular nodal reentrant tachycardia (AVNRT) before cryoablation (with drug provocation if required for induction before cryoablation) at the conclusion of the ablation procedure assessment (i.e. acute procedural success)
    • Lack of documented recurrence of clinical AVNRT during the 6 months follow-up period post the successful ablation procedure

  • Number of Participants with Adverse Events as a Measure of Safety [ Time Frame: 6 Months ] [ Designated as safety issue: No ]
    The primary safety endpoint is a success/failure variable calculated for each subject through 6 months follow-up. Subjects with at least one chronic safety event (serious adverse event determined to be ablation procedure or device related) during the cryoablation procedure and through the end of 6 months follow-up will be considered a primary safety failure.


Secondary Outcome Measures:
  • Number of Participants who had Acutely Successful Procedures and No Atrioventricular Nodal Reentrant Tachycardia Recurrence. [ Time Frame: 6 Months ] [ Designated as safety issue: No ]
    Demonstrate the chronic effectiveness (Lack of documented recurrence of clinical atrioventricular nodal reentrant tachycardia) of the Freezor® Xtra CryoAblation Catheter in the treatment of atrioventricular nodal reentrant tachycardia through 6 months in subjects who have achieved acute procedural success.


Estimated Enrollment: 850
Study Start Date: March 2012
Estimated Study Completion Date: February 2017
Estimated Primary Completion Date: August 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Cryoablation
Subjects diagnosed with atrioventricular nodal reentrant tachycardia and treated by cryoablation with Freezor Xtra.
Device: Freezor Xtra Cryoablation Catheter
Freezor® Xtra Cardiac CryoAblation applied for cryoablation of the conducting tissues of the heart in the treatment of patients with atrioventricular nodal reentrant tachycardia using an endocardial approach.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Pre-Electrophysiology Study Inclusion Criteria:

  • Supraventricular tachycardia (SVT) compatible with atrioventricular nodal reentrant tachycardia (AVNRT), documented by ECG, TTM, Holter or event monitor

Pre-Electrophysiology Study Exclusion Criteria:

  • History of sustained (≥30 seconds) of ventricular tachycardia
  • Atrial tachycardia or other arrhythmia that could be confused with AVNRT
  • Reversible cause of SVT
  • History of previous AVNRT ablation
  • Therapy with amiodarone within last 90 days
  • Unstable angina/myocardial infarction/open heart surgery in past 60 days
  • New York Heart Association (NYHA) Classification III or IV currently or within the past 90 days
  • Implantable cardiac rhythm device
  • Atrioventricular block (first degree (PR interval ≥ 220ms), second degree, or third degree) or left bundle branch block
  • Stroke or transient ischemic attack within the past 180 days
  • Life expectancy less than 12 months
  • Female known to be pregnant
  • Unable/unwilling to give informed consent
  • Unable/unwilling to comply with follow-up visits and study requirements
  • Less than 18 years of age
  • Active systemic infection
  • Cryoglobulinemia
  • Other conditions where the manipulation of the catheter would be unsafe (for example, intracardiac mural thrombus)
  • Participating in a concurrent clinical study that may confound the results of this study

Post-Electrophysiology Study Inclusion Criteria:

  • Subject must have one electrophysiology study documented inducible sustained (greater than or equal to 15 seconds) supraventricular tachycardia that is classified as AVNRT.

Post-Electrophysiology Study Exclusion Criteria:

  • Presence of a second inducible arrhythmia that could be confused with AVNRT during follow-up or will likely result in ablation within the next 6 months
  • Presence of inducible sustained ventricular tachycardia or fibrillation
  • Presence of an accessory pathway
  • Presence of abnormal conduction or refractoriness parameters of the atrioventricular conduction system.
  • Indication for a pacemaker, defibrillator or cardiac resynchronization therapy (CRT)
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01426425

Contacts
Contact: Lori Rusch, PhD (763) 526-2843 lori.k.rusch@medtronic.com
Contact: Linda Nelson (763) 526-2891 linda.k.nelson@medtronic.com

  Hide Study Locations
Locations
United States, Arizona
Heart Rhythm Specialists of Arizona Not yet recruiting
Phoenix, Arizona, United States, 85013
Principal Investigator: Wilber Su, MD            
United States, Arkansas
Cardiology Associates of Northeast Arkansas Withdrawn
Jonesboro, Arkansas, United States, 72401
United States, California
Santa Barbara Cottage Hospital Not yet recruiting
Santa Barbara, California, United States, 93105
Principal Investigator: Claudio Bonometti, MD            
Pacific Heart Institute Recruiting
Santa Monica, California, United States, 90404
Contact: Crystal Ducharme     310-829-7678     cducharme@pacificheart.com    
Principal Investigator: Shepal Doshi, MD            
Stanford Hospital and Clinics Recruiting
Stanford, California, United States, 94305
Contact: Linda Norton     650-725-5597     lnorton@Stanfordmed.org    
Principal Investigator: Paul Wang, MD            
United States, Florida
Baptist Hospital of Miami Not yet recruiting
Miami, Florida, United States, 33176
Principal Investigator: Efrain Gonzalez, MD            
Orlando Heart Center Recruiting
Orlando, Florida, United States, 32806
Contact: Erin Martin     321-843-1037     Erin.Martin@orlandohealth.com    
Principal Investigator: Roland Filart, MD            
United States, Georgia
Piedmont Heart Institute Recruiting
Atlanta, Georgia, United States, 30309
Contact: Tasha Futch-Domohowski     404-605-2371     Tasha.Futch-Domohowski@piedmont.org    
Principal Investigator: Andrew Wickliffe, MD            
United States, Illinois
Advocate Christ Medical Center Recruiting
Oak Lawn, Illinois, United States, 60453
Contact: Charity Ball     708-684-4647     charity.ball@advocatehealth.com    
Principal Investigator: Manoj Duggal, MD            
United States, Iowa
Iowa Heart Center Recruiting
Des Moines, Iowa, United States, 50314
Contact: Cecily Decklever     515-633-3843     Cdecklever@iowaheart.com    
Principal Investigator: Robert Hoyt, MD            
United States, Michigan
University of Michigan Medical Center Not yet recruiting
Ann Arbor, Michigan, United States, 48109
Principal Investigator: Frank Pelosi, MD            
United States, Minnesota
Park Nicollet Institute Recruiting
St. Louis Park, Minnesota, United States, 55426
Contact: Meaghan Morton     952-993-2066     meaghan.morton@parknicollet.com    
Principal Investigator: Hongsheng Guo, MD            
Healtheast St. Joseph's Hospital Recruiting
St. Paul, Minnesota, United States, 55102
Contact: Joy Gilliam     651-471-2653     jegilliam@healtheast.org    
Principal Investigator: David Dunbar, MD            
United States, New York
Montefiore Medical Center Recruiting
Bronx, New York, United States, 10467
Contact: Faraj Al Qaraghuli     718-904-2624     falqara@montefiore.org    
Principal Investigator: Andrew Krumerman, MD            
University of Rochester Medical Center Not yet recruiting
Rochester, New York, United States, 14642
Principal Investigator: David Huang, MD            
United States, North Carolina
Sanger Heart and Vascular Institute Recruiting
Charlotte, North Carolina, United States, 28203
Contact: Connie Dellinger     704-355-4795     connie.dellinger@carolinashealthcare.org    
Principal Investigator: John Holshouser, MD            
United States, Ohio
Cleveland Clinic Recruiting
Cleveland, Ohio, United States, 44195
Contact: Brian Strippy     216-444-0379     STRIPPB@ccf.org    
Principal Investigator: Patrick Tchou, MD            
Miami Valley Cardiologists Recruiting
Dayton, Ohio, United States, 45409
Contact: Ralf Mohr     937-208-4878     rhmohr@mvh.org    
Principal Investigator: Mark Krebs, MD            
United States, Oregon
Sacred Heart Medical Center Recruiting
Springfield, Oregon, United States, 97477
Contact: Becky Hammerschmith     541-510-9308     bhammerschmith@peacehealth.org    
Principal Investigator: Ramakota Reddy, MD            
United States, Pennsylvania
Capital Cardiovascular Associates Recruiting
Camp Hill, Pennsylvania, United States, 17011
Contact: Joanna Stuck     717-724-6450     joanna.stuck@hsh.org    
Principal Investigator: Safwat Gassis, MD            
Geisinger Medical Center Recruiting
Danville, Pennsylvania, United States, 17822
Contact: Marisa Eccker     570-271-8049     meeccker@geisinger.edu    
Contact: Lori Scalzo     570-808-6382     lmscalzo1@geisinger.edu    
Principal Investigator: Randle Storm, MD            
Reading Hospital and Medical Center Terminated
West Reading, Pennsylvania, United States, 19611
United States, Tennessee
Wellmont Cardiovascular Heart Institute Recruiting
Kingsport, Tennessee, United States, 37660
Contact: Ashley Sparks     423-230-5062     asparks@mycva.com    
Principal Investigator: Arun Rao, MD            
United States, Texas
Baylor Heart and Vascular Hospital Recruiting
Dallas, Texas, United States, 75226
Contact: Cathy Headley     214-841-2026     cathyhe@baylorhealth.edu    
Principal Investigator: Manish Assar, MD            
Leachman Cardiology Not yet recruiting
Houston, Texas, United States, 77030
Principal Investigator: J. Alberto Lopez, MD            
Baylor Research Institute Recruiting
Plano, Texas, United States, 75093
Contact: Amy Barnette     469-814-4737     amy.barnette@baylorhealth.edu    
Principal Investigator: Thomas Beveridge, MD            
United States, Virginia
Virginia Heart Recruiting
Falls Church, Virginia, United States, 22042
Contact: Deanna Overbeck     703-766-5920     doverbeck@tcg.md    
Principal Investigator: Haroon Rashid, MD            
Canada, Alberta
Royal Alexandra Hospital Recruiting
Edmonton, Alberta, Canada, T5H 3V9
Contact: Sylvia Martin     (780) 735-4489     Sylvia.Martin@albertahealthservices.ca    
Principal Investigator: Evan Lockwood, MD            
Canada, British Columbia
Victoria Cardiac Arrhythmia Trials, Inc. Recruiting
Victoria, British Columbia, Canada, V8R 4R2
Contact: Mona Bastell     (250) 595-0400     mbastell@catrials.org    
Principal Investigator: Paul Novak, MD            
Canada, Quebec
Montreal Heart Institute Recruiting
Montreal, Quebec, Canada, H1T 1C8
Contact: Evelyn Landry         Evelyn.Landry@icm-mhi.org    
Principal Investigator: Marc Dubuc, MD            
Hopital du Sacre Coeur de Montreal Not yet recruiting
Montreal, Quebec, Canada, H3A 1A1
Principal Investigator: Marcio Sturmer, MD            
Centre Hospitalier Universitaire de Sherbrooke Recruiting
Sherbrooke, Quebec, Canada, J1H 5N4
Contact: Stephanie Cote     (819) 346-1110     sacote.chus@ssss.gouv.qc.ca    
Principal Investigator: Jean-Francois Roux, MD            
Sponsors and Collaborators
Medtronic Atrial Fibrillation Solutions
Investigators
Principal Investigator: Peter Wells, M.D. Baylor Univ Medical Ctr Dallas, TX.
  More Information

No publications provided

Responsible Party: Medtronic Atrial Fibrillation Solutions
ClinicalTrials.gov Identifier: NCT01426425     History of Changes
Other Study ID Numbers: ICY-AVNRT
Study First Received: August 29, 2011
Last Updated: February 12, 2013
Health Authority: United States: Food and Drug Administration
United States: Institutional Review Board
Canada: Ethics Review Committee

Keywords provided by Medtronic Atrial Fibrillation Solutions:
Cardiac cryoablation
AVNRT
heart disease
tachycardia
AtrioVentricular Nodal Reentrant Tachycardia
Supraventricular tachycardia
SVT

Additional relevant MeSH terms:
Heart Diseases
Tachycardia
Tachycardia, Atrioventricular Nodal Reentry
Tachycardia, Supraventricular
Cardiovascular Diseases
Arrhythmias, Cardiac
Pathologic Processes
Tachycardia, Reciprocating

ClinicalTrials.gov processed this record on May 22, 2013