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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT01150214
Registration number
NCT01150214
Ethics application status
Date submitted
22/06/2010
Date registered
24/06/2010
Date last updated
2/06/2017
Titles & IDs
Public title
DECAAF: Delayed-Enhancement MRI (DE-MRI) Determinant of Successful Radiofrequency Catheter Ablation of Atrial Fibrillation
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Scientific title
DECAAF: DE-MRI Determinant of Successful Radiofrequency Catheter Ablation of Atrial Fibrillation
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Secondary ID [1]
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IRB_00039522
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Universal Trial Number (UTN)
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Trial acronym
DECAAF
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Atrial Fibrillation
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Condition category
Condition code
Cardiovascular
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Other cardiovascular diseases
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Treatment: Surgery - DE-MRI
DE-MRI - All patients will undergo Delayed-Enhancement Magnetic Resonance Imaging (DE-MRI)to quantify the degree of atrial structural remodeling or fibrosis pre-ablation and DE-MRI will be obtained at 3, 6, and 12 months follow-up to detect and quantify ablation-related scar formation.
Treatment: Surgery: DE-MRI
Using Delayed-Enhancement Magnetic Resonance Imaging (DE-MRI) to identify fibrotic and scarred cardiac tissue. DE-MRI is a non-invasive method of identifying the extent and the distribution of structural remodeling or fibrosis and scarring associated with atrial fibrillation both pre- and post-ablation.
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Intervention code [1]
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Treatment: Surgery
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Relationship between extent of pre-ablation fibrosis and recurrence post-ablation
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Assessment method [1]
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The percentage of pre-ablation fibrosis in atrial fibrillation patients can significantly impact the incidence of recurrences post-ablation.
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Timepoint [1]
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1 year
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Secondary outcome [1]
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Relationship between extent of Post-ablation scar and incidence of atrial fibrillation recurrences post-catheter ablation for AF
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Assessment method [1]
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The extent of lesions created by ablation may have an impact on the incidence of recurrence of AF post-ablation
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Timepoint [1]
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Post-ablation scar
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Eligibility
Key inclusion criteria
* Patients who underwent an AF ablation as per recent Heart Rhythm Society (HRS) consensus document, as per the University of Utah AFIB Database (IRB_00020347)
* Patients who have had an MRI post-ablation.
* Age =18 years.
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Minimum age
18
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Contraindication for DE-MRI with a full dose of Gadolinium-based contrast agent.
* Previous left atrial ablation or surgical procedure
* Renal failure with CrCl <60 ml/min
* Women currently pregnant, breastfeeding, or of childbearing age not currently taking or not willing to use a reliable form of contraception
* Mental or physical inability to take part in the study
* Uncontrolled hypertension
* Morbid obesity (BMI > 35), or inability to be placed in MRI due to body mass.
* Patients who have not had a DE-MRI post-ablation.
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Study design
Purpose
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Duration
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Selection
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/07/2010
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/09/2012
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Sample size
Target
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Accrual to date
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Final
339
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Recruitment in Australia
Recruitment state(s)
SA
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Recruitment hospital [1]
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Royal Adelaide Hospital - Norwood
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Recruitment postcode(s) [1]
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5067 - Norwood
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Recruitment outside Australia
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United States of America
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Florida
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United States of America
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Illinois
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United States of America
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Ohio
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Pennsylvania
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Tennessee
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Belgium
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Ghent
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France
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Bordeaux
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Germany
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Bad Nauheim
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Germany
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Coburg
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Germany
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Cologne
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Germany
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Hamburg
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Germany
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Leipzig
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Netherlands
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Nieuwegein
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Spain
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Catalonia
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of Utah
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Ethics approval
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Summary
Brief summary
This is a multi-center, observational, 1-year prospective cohort study (1 year follow-up, at 3, 6 and 12 month) with approximately 675 participants. We will conduct a thorough outcomes assessment utilizing data from Magnetic Resonance Imaging (MRI) scans, as well as pre-procedure and follow-up data. Scans will be blinded to location of participating site. MRI scans will be sequenced and analyzed as they arrive from the database. Imaging Protocol: All patients will undergo a Delayed-Enhancement MRI (DE-MRI) within 30 days prior to the atrial fibrillation (AF) ablation procedure. The purpose of the initial MRI is to quantify the degree of atrial structural remodeling or fibrosis pre-ablation. Following ablation, DE-MRI will be obtained at 3, 6, and 12 months follow-up to detect and quantify ablation-related scar formation. Clinical Follow-up: The institution where the ablation was performed will continue post-procedural care following standard of care procedures. Atrial arrhythmia recurrences will be catalogued up to one year post-ablation and predictors of recurrences of AF will be determined by statistical analysis. The specific mechanism and electrophysiological characteristics of atrial arrhythmia recurrence will also be analyzed. Our hypotheses are (1) DE-MRI will reproducibly stage the progression left atrium fibrosis in AF; (2) DE-MRI will reproducibly aid in quantifying and identifying the distribution of catheter ablation-related scarring in the left atrium; and (3) the stage of left atrium fibrosis pre-ablation and the amount and location of scarring will predict success of catheter ablation therapy for AF.
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Trial website
https://clinicaltrials.gov/study/NCT01150214
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Trial related presentations / publications
Oakes RS, Badger TJ, Kholmovski EG, Akoum N, Burgon NS, Fish EN, Blauer JJ, Rao SN, DiBella EV, Segerson NM, Daccarett M, Windfelder J, McGann CJ, Parker D, MacLeod RS, Marrouche NF. Detection and quantification of left atrial structural remodeling with delayed-enhancement magnetic resonance imaging in patients with atrial fibrillation. Circulation. 2009 Apr 7;119(13):1758-67. doi: 10.1161/CIRCULATIONAHA.108.811877. Epub 2009 Mar 23. McGann CJ, Kholmovski EG, Oakes RS, Blauer JJ, Daccarett M, Segerson N, Airey KJ, Akoum N, Fish E, Badger TJ, DiBella EV, Parker D, MacLeod RS, Marrouche NF. New magnetic resonance imaging-based method for defining the extent of left atrial wall injury after the ablation of atrial fibrillation. J Am Coll Cardiol. 2008 Oct 7;52(15):1263-71. doi: 10.1016/j.jacc.2008.05.062. Segerson NM, Daccarett M, Badger TJ, Shabaan A, Akoum N, Fish EN, Rao S, Burgon NS, Adjei-Poku Y, Kholmovski E, Vijayakumar S, DiBella EV, MacLeod RS, Marrouche NF. Magnetic resonance imaging-confirmed ablative debulking of the left atrial posterior wall and septum for treatment of persistent atrial fibrillation: rationale and initial experience. J Cardiovasc Electrophysiol. 2010 Feb;21(2):126-32. doi: 10.1111/j.1540-8167.2009.01611.x. Epub 2009 Oct 5. Calkins H, Brugada J, Packer DL, Cappato R, Chen SA, Crijns HJ, Damiano RJ Jr, Davies DW, Haines DE, Haissaguerre M, Iesaka Y, Jackman W, Jais P, Kottkamp H, Kuck KH, Lindsay BD, Marchlinski FE, McCarthy PM, Mont JL, Morady F, Nademanee K, Natale A, Pappone C, Prystowsky E, Raviele A, Ruskin JN, Shemin RJ; Heart Rhythm Society; European Heart Rhythm Association; European Cardiac Arrhythmia Society; American College of Cardiology; American Heart Association; Society of Thoracic Surgeons. HRS/EHRA/ECAS expert consensus statement on catheter and surgical ablation of atrial fibrillation: recommendations for personnel, policy, procedures and follow-up. A report of the Heart Rhythm Society (HRS) Task Force on Catheter and Surgical Ablation of Atrial Fibrillation developed in partnership with the European Heart Rhythm Association (EHRA) and the European Cardiac Arrhythmia Society (ECAS); in collaboration with the American College of Cardiology (ACC), American Heart Association (AHA), and the Society of Thoracic Surgeons (STS). Endorsed and approved by the governing bodies of the American College of Cardiology, the American Heart Association, the European Cardiac Arrhythmia Society, the European Heart Rhythm Association, the Society of Thoracic Surgeons, and the Heart Rhythm Society. Europace. 2007 Jun;9(6):335-79. doi: 10.1093/europace/eum120. No abstract available. Erratum In: Europace. 2009 Jan;11(1):132.
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Public notes
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Contacts
Principal investigator
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Nassir F Marrouce, MD, FHRS
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Address
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CARMA Center, University of Utah
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT01150214
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