NCT01584154|UnknownPhase 4
Comparative Study Between Cryoablation and Radiofrequency Ablation in the Treatment of Supraventricular Tachycardia
CRYOABLATE
CRYOthermy and Radiofrequency ABLation For AVNRT TrEatment
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CRYOABLATE
CRYOthermy and Radiofrequency ABLation For AVNRT TrEatment
Sponsor study identifier
interventional
520
1 country
1
Study Start
March 2012
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
September 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
September 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
The purpose of this study is to compare the safety and effectiveness of cryoablation and radiofrequency ablation in the treatment of the commonest kind of supraventricular tachycardia, namely atrioventricular nodal reentrant tachycardia. The study hypothesis is that cryoablation is non-inferior to radiofrequency.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
September 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
March 2012
Date type not reportedThis date has not been verified as actual or estimated.
April 21, 2012
Actual (reported)April 24, 2012
Actual (reported)September 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
September 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
treatment success rate, defined as proportion of treated patients with both atrioventricular block-free acute procedural success and mid-term success without recurrence at 6 months
6 months after treatment
Treatment success rate at 12 months
12 months after treatment
radiofrequency ablation with a 4mm-tip catheter
cryoablation with an 8mm-tip catheter
radiofrequency ablation with a 4mm-tip catheter
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Princess Margaret Hospital
Hong Kong, Guangdong, China
Chan NY, Mok NS, Choy CC, Lau CL, Chu PS, Yuen HC, Lau ST. Treatment of atrioventricular nodal re-entrant tachycardia by cryoablation with an 8-mm-tip catheter versus radiofrequency ablation. J Interv Card Electrophysiol. 2012 Sep;34(3):295-301. doi: 10.1007/s10840-012-9670-9. Epub 2012 Mar 9.
Chan NY, Choy CC, Lau CL, Lo YK, Chu PS, Yuen HC, Choi YC, Lau ST. Cryoablation versus radiofrequency ablation for atrioventricular nodal reentrant tachycardia: patient pain perception and operator stress. Pacing Clin Electrophysiol. 2011 Jan;34(1):2-7. doi: 10.1111/j.1540-8159.2010.02858.x. Epub 2010 Aug 18.
Ngai-Yin Chan, MBBS
Princess Margaret Hospital, Canada
First Submitted
April 21, 2012
First Posted
April 24, 2012
Study Start
March 2012
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
September 2017
Estimated (date passed)Contact the study team to confirm eligibility.
Chan NY, Mok NS, Lau CL, Lo YK, Choy CC, Lau ST, Choi YC. Treatment of atrioventricular nodal re-entrant tachycardia by cryoablation with a 6 mm-tip catheter vs. radiofrequency ablation. Europace. 2009 Aug;11(8):1065-70. doi: 10.1093/europace/eup121. Epub 2009 May 17.
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
September 2017
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
September 4, 2015
Record last verified: 2015-09
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Source: ClinicalTrials.gov.
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