Cryotherapy Versus Radiofrequency Catheter Ablation Research Program

NCT ID: NCT03816033

Last Updated: 2019-01-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

600 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-06-01

Study Completion Date

2023-06-30

Brief Summary

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A program of research has been set up at St. George's Hospital, London studyng the practicalities of catheter ablation. The current practice of catheter ablation is being studied for a range of arrhythmias including PAF, persistent AF, advanced persistent AF and resistant WPW.

Detailed Description

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The study design will be a separate randomised clinical trial for each of the arrhythmias studied. There will be 1:1 randomisation to either the cryotherapy protocol or RF protocol. Arrhythmia patients already under the care of this cardiac centre, who have already opted for catheter ablation treatment will be approached to ask if they will also be willing to participate in this longterm research program.

The protocols for each different arrhythmia are in line with current practice and knowledge and utilising current technology. In the program, the investigators have 1 or 2 protocols that mildly differ from conventional use but have already passed through initial experience with publication on this- this is the multi-catheter cryocatheter approach.

Acute procedural outcomes, short, medium and longterm success will be recorded for each patient, in addition to patient or participant experience and quality of life outcomes.

The catheter ablation research program has passed through ethical panel review in London and has the potential to become a multi-centre study.

Conditions

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Atrial Fibrillation Atrial Tachycardia Wpw Ventricular Tachycardia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

This is a 1:1 randomised clinical controlled trial or a set of them, in our extensive program of research.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
The physiologist analysing the Holter results and/or loop recorders for recurrence of arrhythmia will not know the randomised treatment for the study participant.

Study Groups

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Cryotherapy

Cryotherapy ablation energy will be utilised in the catheter ablation procedure

Group Type ACTIVE_COMPARATOR

Cryotherapy

Intervention Type PROCEDURE

Catheter ablation treatment for the treatment of the studied arrhythmias

Radiofrequency

Radiofrequency ablation energy will be utilised in the catheter ablation procedure

Group Type ACTIVE_COMPARATOR

radiofrequency catheter ablation

Intervention Type PROCEDURE

Catheter ablation treatment for the treatment of the studied arrhythmias

Interventions

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Cryotherapy

Catheter ablation treatment for the treatment of the studied arrhythmias

Intervention Type PROCEDURE

radiofrequency catheter ablation

Catheter ablation treatment for the treatment of the studied arrhythmias

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Adult patients under the care of the Arrhythmia Service at St. George's Hospital with one of the studied arrhythmia (PAF, persistent AF etc), awaiting catheter ablation treatment will be eligible for inclusion to the program of research

Exclusion Criteria

* Vulnerable patients will be excluded- e.g. active cancer, inability to consent
* Paediatric patients will not be studied
* Patients awaiting standard SVT catheter ablation treatment
Minimum Eligible Age

18 Years

Maximum Eligible Age

88 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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St. George's Hospital, London

OTHER

Sponsor Role lead

Responsible Party

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Dr. Mark M. Gallagher

Consultant Cardiologist and electrophysiologist

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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St.George's Hospital

London, , United Kingdom

Site Status RECRUITING

Countries

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United Kingdom

Central Contacts

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Anu Taiwo, Bsc

Role: CONTACT

+4420287256606

Lisa Leung, MBChB (Hons), MRCP (UK)

Role: CONTACT

07952738053

Facility Contacts

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Anu Taiwo, Bsc

Role: primary

0208 725 6606 ext. 6606

References

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Verma A, Jiang CY, Betts TR, Chen J, Deisenhofer I, Mantovan R, Macle L, Morillo CA, Haverkamp W, Weerasooriya R, Albenque JP, Nardi S, Menardi E, Novak P, Sanders P; STAR AF II Investigators. Approaches to catheter ablation for persistent atrial fibrillation. N Engl J Med. 2015 May 7;372(19):1812-22. doi: 10.1056/NEJMoa1408288.

Reference Type BACKGROUND
PMID: 25946280 (View on PubMed)

Ciconte G, Ottaviano L, de Asmundis C, Baltogiannis G, Conte G, Sieira J, Di Giovanni G, Saitoh Y, Irfan G, Mugnai G, Storti C, Montenero AS, Chierchia GB, Brugada P. Pulmonary vein isolation as index procedure for persistent atrial fibrillation: One-year clinical outcome after ablation using the second-generation cryoballoon. Heart Rhythm. 2015 Jan;12(1):60-6. doi: 10.1016/j.hrthm.2014.09.063. Epub 2014 Oct 2.

Reference Type BACKGROUND
PMID: 25281891 (View on PubMed)

Hunter RJ, Baker V, Finlay MC, Duncan ER, Lovell MJ, Tayebjee MH, Ullah W, Siddiqui MS, McLEAN A, Richmond L, Kirkby C, Ginks MR, Dhinoja M, Sporton S, Earley MJ, Schilling RJ. Point-by-Point Radiofrequency Ablation Versus the Cryoballoon or a Novel Combined Approach: A Randomized Trial Comparing 3 Methods of Pulmonary Vein Isolation for Paroxysmal Atrial Fibrillation (The Cryo Versus RF Trial). J Cardiovasc Electrophysiol. 2015 Dec;26(12):1307-14. doi: 10.1111/jce.12846. Epub 2015 Nov 25.

Reference Type BACKGROUND
PMID: 26727045 (View on PubMed)

Bisleri G, Rosati F, Bontempi L, Curnis A, Muneretto C. Hybrid approach for the treatment of long-standing persistent atrial fibrillation: electrophysiological findings and clinical results. Eur J Cardiothorac Surg. 2013 Nov;44(5):919-23. doi: 10.1093/ejcts/ezt115. Epub 2013 Mar 8.

Reference Type BACKGROUND
PMID: 23475587 (View on PubMed)

Haissaguerre M, Hocini M, Sanders P, Takahashi Y, Rotter M, Sacher F, Rostock T, Hsu LF, Jonsson A, O'Neill MD, Bordachar P, Reuter S, Roudaut R, Clementy J, Jais P. Localized sources maintaining atrial fibrillation organized by prior ablation. Circulation. 2006 Feb 7;113(5):616-25. doi: 10.1161/CIRCULATIONAHA.105.546648.

Reference Type BACKGROUND
PMID: 16461833 (View on PubMed)

Tada H, Yamada M, Naito S, Nogami A, Oshima S, Taniguchi K. Radiofrequency catheter ablation within the coronary sinus eliminates a macro-reentrant atrial tachycardia: importance of mapping in the coronary sinus. J Interv Card Electrophysiol. 2006 Jan;15(1):35-41. doi: 10.1007/s10840-006-6310-2.

Reference Type BACKGROUND
PMID: 16680548 (View on PubMed)

Hawker GA, Mian S, Kendzerska T, French M. Measures of adult pain: Visual Analog Scale for Pain (VAS Pain), Numeric Rating Scale for Pain (NRS Pain), McGill Pain Questionnaire (MPQ), Short-Form McGill Pain Questionnaire (SF-MPQ), Chronic Pain Grade Scale (CPGS), Short Form-36 Bodily Pain Scale (SF-36 BPS), and Measure of Intermittent and Constant Osteoarthritis Pain (ICOAP). Arthritis Care Res (Hoboken). 2011 Nov;63 Suppl 11:S240-52. doi: 10.1002/acr.20543. No abstract available.

Reference Type BACKGROUND
PMID: 22588748 (View on PubMed)

Aliot EM, Stevenson WG, Almendral-Garrote JM, Bogun F, Calkins CH, Delacretaz E, Della Bella P, Hindricks G, Jais P, Josephson ME, Kautzner J, Kay GN, Kuck KH, Lerman BB, Marchlinski F, Reddy V, Schalij MJ, Schilling R, Soejima K, Wilber D; European Heart Rhythm Association (EHRA); Registered Branch of the European Society of Cardiology (ESC); Heart Rhythm Society (HRS); American College of Cardiology (ACC); American Heart Association (AHA). EHRA/HRS Expert Consensus on Catheter Ablation of Ventricular Arrhythmias: developed in a partnership with the European Heart Rhythm Association (EHRA), a Registered Branch of the European Society of Cardiology (ESC), and the Heart Rhythm Society (HRS); in collaboration with the American College of Cardiology (ACC) and the American Heart Association (AHA). Heart Rhythm. 2009 Jun;6(6):886-933. doi: 10.1016/j.hrthm.2009.04.030. No abstract available.

Reference Type BACKGROUND
PMID: 19467519 (View on PubMed)

Andrade JG, Dubuc M, Guerra PG, Macle L, Mondesert B, Rivard L, Roy D, Talajic M, Thibault B, Khairy P. The biophysics and biomechanics of cryoballoon ablation. Pacing Clin Electrophysiol. 2012 Sep;35(9):1162-8. doi: 10.1111/j.1540-8159.2012.03436.x. Epub 2012 Jun 5.

Reference Type BACKGROUND
PMID: 22671922 (View on PubMed)

Other Identifiers

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IRAS236684

Identifier Type: -

Identifier Source: org_study_id

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