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Radiofrequency Ablation Plus Botulinum Toxin Injection Versus Radiofrequency Ablation Only in Patients With Atrial Flutter

Primary Purpose

Atrial Flutter

Status
Unknown status
Phase
Phase 2
Locations
Russian Federation
Study Type
Interventional
Intervention
radiofrequency ablation
Botulinum Toxin Type A injection
Sponsored by
Meshalkin Research Institute of Pathology of Circulation
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Atrial Flutter

Eligibility Criteria

18 Years - 70 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Age ≥ 18 years
  • ECG documented paroxysmal or persistent AFL
  • No prior documented history of AF
  • Patient undergoing RFA of AFL.
  • No indication (other than AFL) for continued anticoagulation with warfarin.
  • No existing implantable cardiac device (pacemaker, defibrillator, cardiac resynchronization therapy device)

Exclusion Criteria:

  • A history of atrial fibrillation
  • Previous AF ablation procedure
  • Congestive heart failure
  • Left Ventricle ejection fraction less than 35%
  • Unwillingness to participate

Sites / Locations

  • State Research Institute of Circulation PathologyRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Active Comparator

Arm Label

RFA+BT injection

RFA

Arm Description

Transseptal puncture is performed by used standard endovascular approach. Injection of the botulinum toxin is performed in main anatomical zones of ganglionated plexuses of left atrium using Myostar catheter (Biosense Webster).

Externally-irrigated tip (5-mm tip, Celsius Thermo-Cool, Biosense Webster, Diamond Bar, CA, USA). Temperature-controlled RF delivery was performed with a maximum power output of 50 W and temperature limit of 50 C. The catheter was irrigated using 0.9% saline infusion at a flow rate of 20-40 mL/min during RF delivery and 2 mL/min between applications using a commercially available pump (Cool Flow, Biosense Webster).

Outcomes

Primary Outcome Measures

number of paroxysms of atrial fibrillation

Secondary Outcome Measures

AF burden
serious adverse events

Full Information

First Posted
December 2, 2013
Last Updated
September 21, 2015
Sponsor
Meshalkin Research Institute of Pathology of Circulation
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1. Study Identification

Unique Protocol Identification Number
NCT02002962
Brief Title
Radiofrequency Ablation Plus Botulinum Toxin Injection Versus Radiofrequency Ablation Only in Patients With Atrial Flutter
Official Title
Radiofrequency Ablation Plus Botulinum Toxin Injection Versus Radiofrequency Ablation Only in Patients With Atrial Flutter to Prevent Post-procedural Atrial Fibrillation
Study Type
Interventional

2. Study Status

Record Verification Date
September 2015
Overall Recruitment Status
Unknown status
Study Start Date
June 2013 (undefined)
Primary Completion Date
June 2015 (Actual)
Study Completion Date
January 2016 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Meshalkin Research Institute of Pathology of Circulation

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The aim of this randomized study was to assess the effectiveness of endomyocardial botulinum toxin injection for preventing post-procedural atrial fibrillation in patients undergoing the radiofrequency ablation of atrial flutter.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Atrial Flutter

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
Participant
Allocation
Randomized
Enrollment
60 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
RFA+BT injection
Arm Type
Active Comparator
Arm Description
Transseptal puncture is performed by used standard endovascular approach. Injection of the botulinum toxin is performed in main anatomical zones of ganglionated plexuses of left atrium using Myostar catheter (Biosense Webster).
Arm Title
RFA
Arm Type
Active Comparator
Arm Description
Externally-irrigated tip (5-mm tip, Celsius Thermo-Cool, Biosense Webster, Diamond Bar, CA, USA). Temperature-controlled RF delivery was performed with a maximum power output of 50 W and temperature limit of 50 C. The catheter was irrigated using 0.9% saline infusion at a flow rate of 20-40 mL/min during RF delivery and 2 mL/min between applications using a commercially available pump (Cool Flow, Biosense Webster).
Intervention Type
Procedure
Intervention Name(s)
radiofrequency ablation
Intervention Type
Drug
Intervention Name(s)
Botulinum Toxin Type A injection
Primary Outcome Measure Information:
Title
number of paroxysms of atrial fibrillation
Time Frame
1 year
Secondary Outcome Measure Information:
Title
AF burden
Time Frame
1 year
Title
serious adverse events
Time Frame
1 year

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
70 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Age ≥ 18 years ECG documented paroxysmal or persistent AFL No prior documented history of AF Patient undergoing RFA of AFL. No indication (other than AFL) for continued anticoagulation with warfarin. No existing implantable cardiac device (pacemaker, defibrillator, cardiac resynchronization therapy device) Exclusion Criteria: A history of atrial fibrillation Previous AF ablation procedure Congestive heart failure Left Ventricle ejection fraction less than 35% Unwillingness to participate
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Evgeny Pokushalov, MD, PhD
Phone
+79139254858
Email
e.pokushalov@gmail.com
Facility Information:
Facility Name
State Research Institute of Circulation Pathology
City
Novosibirsk
ZIP/Postal Code
630055
Country
Russian Federation
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Evgeny Pokushalov, MD, PhD
Phone
+79139254858
Email
E.Pokushalov@gmail.com
First Name & Middle Initial & Last Name & Degree
Evgeny Pokushalov, MD, PhD

12. IPD Sharing Statement

Links:
URL
http://meshalkin.ru
Description
State Research Institute of Circulation Pathology Official Site

Learn more about this trial

Radiofrequency Ablation Plus Botulinum Toxin Injection Versus Radiofrequency Ablation Only in Patients With Atrial Flutter

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