- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02639793
Effects of Catheter Ablation on Burden of Atrial Fibrillation (MRICEMAN) (MRICEMAN)
A Nationwide Multicenter Trial Assessing the Effects of Catheter Ablation on Burden of Atrial Fibrillation Recorded by Implantable Cardiac Monitor
Study Overview
Detailed Description
A total of 300 patients will be randomized to three different catheter ablation techniques (100 patients/group); radiofrequency ablation using remote magnet navigation, radiofrequency ablation using manual method, and cryoablation. A loop recorder (REVEAL) is implanted one month before the catheter ablation of paroxysmal atrial fibrillation and the effects of atrial fibrillation burden will be compared between the three methods at 12 and 24 months after ablation excluding the first three months´ blanking period.
The primary endpoints are:
- the proportion of patients remaining free from atrial fibrillation, atrial flutter or atrial tachycardia (> 2 minutes) recorded by the implantable cardiac monitor (Medtronic) at 24 months follow-up and
- total atrial fibrillation burden recorded by the loop recorder.
Other endpoints:
- Atrial fibrillation burden in 7 days Holter recording at 12 and 24 months compared to baseline,
- the time to first documented symptomatic and asymptomatic recurrence of atrial fibrillation
- prescription of antiarrhythmic drugs after the 3 months blanking period following the ablation
- re-ablation after the index ablation procedure,
- total procedural duration;
- total time of fluoroscopy and radiation dose;
- number and duration of cardiovascular hospitalization;
- quality of life questionnaires at 12 months and 24 month compared with baseline,
- cognitive function at 12 and 24 month compared with baseline,
- cost-efficacy of the different ablation techniques.
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Contact
- Name: Heikki Huikuri, Prof
- Phone Number: +358400892330
- Email: heikki.huikuri@oulu.fi
Study Contact Backup
- Name: Pekka Raatikainen, Prof
- Phone Number: +35883154108
- Email: pekka-raatikainen@hus.fi
Study Locations
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Oulu, Finland, 90014
- UOulu
-
Contact:
- Heikki Huikuri, Prof
- Phone Number: +35883155599
- Email: heikki.huikuri@oulu.fi
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Contact:
- Pekka Raatikainen, prof
- Phone Number: +3588400892330
- Email: pekka.raatikainen@hus.fi
-
Oulu, Finland
- Heikki Huikuri
-
Contact:
- Heikki Huikuri, Prof
- Phone Number: +35883154108
- Email: heikki.huikuri@oiulu.fi
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria:
- Patients with symptomatic paroxysmal atrial fibrillation fulfilling the contemporary guideline criteria for AF ablation
Exclusion Criteria:
- Any contraindication to catheter ablation
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: manual radiofrequency ablation
Radiofrequency catheter ablation using manual catheter manipulation will be used as an ablation technique.
|
Three different catheter ablation techniques will be used aimed at isolating the pulmonary veins from left atrium.The endpoint is defined as absence or dissociation of all pulmonary vein potentials as confirmed by the circular mapping catheter after a waiting period of 30 minutes after the last ablation.
The use of adenosine or isoproterenol to detect concealed pulmonary vein conduction is voluntary.
|
Active Comparator: magnet navigation ablation
Radiofrequency catheter ablation using remote magnet navigation will be used as an ablation technique.
|
Three different catheter ablation techniques will be used aimed at isolating the pulmonary veins from left atrium.The endpoint is defined as absence or dissociation of all pulmonary vein potentials as confirmed by the circular mapping catheter after a waiting period of 30 minutes after the last ablation.
The use of adenosine or isoproterenol to detect concealed pulmonary vein conduction is voluntary.
|
Active Comparator: cryoablation
Catheter ablation using cryoablation technique will be used as an ablation technique of atrial fibrillation.
|
Three different catheter ablation techniques will be used aimed at isolating the pulmonary veins from left atrium.The endpoint is defined as absence or dissociation of all pulmonary vein potentials as confirmed by the circular mapping catheter after a waiting period of 30 minutes after the last ablation.
The use of adenosine or isoproterenol to detect concealed pulmonary vein conduction is voluntary.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Free of atrial fibrillation
Time Frame: 24 months
|
the proportion of patients remaining free from AF, atrial flutter (AFL) or atrial tachycardia (AT) (> 2 minutes) recorded by the implantable cardiac monitor (ICM, Reveal, Medtronic Co.) at 24 months.
|
24 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Total AF burden
Time Frame: 24 months
|
total AF burden recorded by the implantable loop recorder during the 24 month follow-up.
|
24 months
|
Incidence of adverse events
Time Frame: 24 months
|
Safety is one of the secondary endpoints. The following potential adverse events will be monitored: Any previous left atrial ablation or surgery Any cardiac surgery or percutaneous coronary intervention within three months prior to enrolment. Secondary AF Stroke or transient ischemic attack within six months prior to enrolment Myocardial infarction within three months prior to enrolment Left ventricular ejection fraction < 40 % Anteroposterior left atrial diameter >55 mm by transthoracic or transesophageal echocardiography Implanted prosthetic valve |
24 months
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Heikki Huikuri, Prof, University of Oulu
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- AFOulu
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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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