- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05239364
Ablation of Consecutive Atrial Tachycardia (CONCLUDE)
November 9, 2022 updated by: Christian Meyer, Evangelical Hospital Düsseldorf
Ablation of CONseCutive atriaL Tachycardia gUided by Ultra-high-DEnsity Mapping
Ablation of consecutive atrial tachycardia (AT) after ablation of atrial fibrillation (AF) or cardiac surgery can be challenging due to complex substrate and AT mechanisms.
A substantial portion of patients is known to show various tachycardias and recurrences occur in a noticeable number of cases.
With the availability of novel ultra-high-density mapping techniques characterization and understanding of AT mechanisms and underlying substrate can be improved.
Aim of this prospective, multi-center, randomized study is to compare a standard AT ablation approach versus minimalized ablation of the clinical AT in regards to arrhythmia free survival.
Study Overview
Status
Recruiting
Intervention / Treatment
Study Type
Interventional
Enrollment (Anticipated)
100
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
-
Hagen, Germany
- Recruiting
- Evangelic Hospital Hagen-Haspe
-
Contact:
- Harilaos Bogossian, MD
-
Hamburg, Germany
- Recruiting
- Asklepios St. Georg
-
Contact:
- Stephan Willems, MD
-
Kiel, Germany
- Recruiting
- Universitatsklinikum Schleswig Holstein
-
-
North Rhine-Westfalia
-
Düsseldorf, North Rhine-Westfalia, Germany, 40217
- Recruiting
- Evangelic Hospital Düsseldorf
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Consecutive AT subsequent to prior AF ablation procedure or cardiac surgery
- Surface ECG-documentation of AT as primary clinical arrhythmia
- ECG indicating stable, map-able AT (stable activation sequence, and CL stability) with cycle length ≥ 200ms
Exclusion Criteria:
- < 18 years
- No previous atrial fibrillation ablation procedure or cardiac surgery
- Pregnant women or women of childbearing potential without a negative pregnancy test within 48 hours prior to treatment
- History of hemorrhagic diathesis or other coagulopathies
- Contraindications for oral anticoagulation
- Hyper- or hypothyroidism
- Has any condition that would make participation not be in the best interest of the subject
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Standard approach
Patients will receive a standard approach for ablation of atrial tachycardia.
|
Catheter-based ablation of arrhythmias using radiofrequency.
|
EXPERIMENTAL: Minimalized approach
Patients will receive a minimalized approach for ablation of atrial tachycardia.
|
Catheter-based ablation of arrhythmias using radiofrequency.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Recurrence of any sustained arrhythmia (>30 sec.)
Time Frame: 1 year
|
1 year
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Inducibility of atrial tachycardia (AT) after ablation of clinical/primary AT (partial success)
Time Frame: Intraprocedural
|
Categorical variable (yes/no)
|
Intraprocedural
|
Predictability of secondary AT by analysis of clinical AT map and voltage map
Time Frame: Intraprocedural
|
Intraprocedural
|
|
Procedure duration time
Time Frame: Intraprocedural
|
Intraprocedural
|
|
Fluoroscopy time
Time Frame: intraprocedural
|
intraprocedural
|
|
Total radiofrequency application time
Time Frame: intraprocedural
|
intraprocedural
|
|
Ablated area (cm2)
Time Frame: intraprocedural
|
intraprocedural
|
|
Number of blocked lines
Time Frame: intraprocedural
|
intraprocedural
|
|
Area of low voltage in sinus map (cm2)
Time Frame: Intraprocedural
|
Intraprocedural
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Christian Meyer, MD, Evangelic Hospital Düsseldorf
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Jungen C, Akbulak R, Kahle AK, Eickholt C, Schaeffer B, Scherschel K, Dinshaw L, Muenkler P, Schleberger R, Nies M, Gunawardene MA, Klatt N, Hartmann J, Merbold L, Jularic M, Willems S, Meyer C. Outcome after tailored catheter ablation of atrial tachycardia using ultra-high-density mapping. J Cardiovasc Electrophysiol. 2020 Oct;31(10):2645-2652. doi: 10.1111/jce.14703. Epub 2020 Aug 11.
- Derval N, Takigawa M, Frontera A, Mahida S, Konstantinos V, Denis A, Duchateau J, Pillois X, Yamashita S, Berte B, Thompson N, Hooks D, Pambrun T, Sacher F, Hocini M, Bordachar P, Jais P, Haissaguerre M. Characterization of Complex Atrial Tachycardia in Patients With Previous Atrial Interventions Using High-Resolution Mapping. JACC Clin Electrophysiol. 2020 Jul;6(7):815-826. doi: 10.1016/j.jacep.2020.03.004. Epub 2020 May 27.
- Meyer C. High-density mapping-based ablation strategies of cardiac rhythm disorders: the RHYTHMIA experience at new horizons. Europace. 2019 Aug 1;21(Supplement_3):iii7-iii10. doi: 10.1093/europace/euz154. No abstract available.
- Takigawa M, Martin CA, Derval N, Denis A, Vlachos K, Kitamura T, Frontera A, Martin R, Cheniti G, Lam A, Bourier F, Thompson N, Wolf M, Massoulie G, Escande W, Andre C, Zeng LJ, Nakatani Y, Roux JR, Duchateau J, Pambrun T, Sacher F, Cochet H, Hocini M, Haissaguerre M, Jais P. Insights from atrial surface activation throughout atrial tachycardia cycle length: A new mapping tool. Heart Rhythm. 2019 Nov;16(11):1652-1660. doi: 10.1016/j.hrthm.2019.04.029. Epub 2019 Apr 18.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
December 22, 2020
Primary Completion (ANTICIPATED)
December 1, 2023
Study Completion (ANTICIPATED)
December 1, 2024
Study Registration Dates
First Submitted
January 10, 2022
First Submitted That Met QC Criteria
February 3, 2022
First Posted (ACTUAL)
February 14, 2022
Study Record Updates
Last Update Posted (ACTUAL)
November 10, 2022
Last Update Submitted That Met QC Criteria
November 9, 2022
Last Verified
November 1, 2022
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CONCLUDE
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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