- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04740801
Electrical Coupling Information From The RHYTHMIA HDx Mapping System and DIRECTSENSE Technology In The Treatment of Paroxysmal Atrial Fibrillation (LOCALIZE CF) (LOCALIZE CF)
May 10, 2023 updated by: Boston Scientific Corporation
Electrical Coupling Information From The RHYTHMIA HDx Mapping System and DIRECTSENSE Technology In The Treatment of Paroxysmal Atrial Fibrillation: A Non-Randomized Prospective Study With Contact Force
The objective of this study is to evaluate whether local impedance (DIRECTSENSE™) drop on the INTELLANAV STABLEPOINT™ ablation catheter is associated with late pulmonary vein (PV) reconnections and durable conduction block in patients undergoing de novo PV isolation (PVI) for treatment of paroxysmal atrial fibrillation (PAF).
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
60
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
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Berlin, Germany, 10967
- Vivantes Klinikum am Urban
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Karlsruhe, Germany, 76133
- Städtisches Klinikum Karlsruhe
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Milano, Italy, 20138
- Centro Cardiologico Monzino
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Avellino
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Mercogliano, Avellino, Italy, 83013
- Casa di Cura Montevergine S.p.A.
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Pamplona, Spain, 31008
- Clinica Universidad de Navarra
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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
Description
Inclusion Criteria:
- History of recurrent, symptomatic, paroxysmal atrial fibrillation (PAF), defined as atrial fibrillation (AF) that terminates spontaneously or with intervention (either procedure or drug therapy) within seven days of onset. Minimum documentation includes at least one AF episode electrocardiographically documented and at least one additional symptomatic recurrence with or without electrocardiographic documentation, within 365 days prior to enrollment.
- Subjects who are eligible for an ablation procedure for paroxysmal AF according to international and local guidelines on catheter ablation of AF.
- Subjects refractory or intolerant to at least one Beta Blocker, Calcium Channel Blocker, class I or III antiarrhythmic medication taken for the treatment of AF/AT (Atrial Tachycardia)/AFL (Atrial Flutter) or contraindicated to any class I or III antiarrhythmic medications, Beta Blocker or Calcium Channel Blocker.
- Subjects who are willing and capable of providing informed consent.
- Subjects who are willing and capable of participating in all testing associated with this clinical investigation at an approved clinical investigational center.
- Subjects whose age is 18 years or above, or who are of legal age to give informed consent specific to local and national law.
Exclusion Criteria:
- Any known contraindication to an AF ablation or anticoagulation
- Continuous AF lasting longer than seven days from onset (no episodes within 365 days from enrollment)
- History of previous LA ablation or surgical treatment for AF/AT/AFL
- AF secondary to electrolyte imbalance, thyroid disease, or reversible or non-cardiac cause
- Subjects with life expectancy ≤ 6 months
Structural heart disease, heart conditions, or implanted devices as described below:
- Left ventricular ejection fraction < 35% based on the most recent imaging (≤ 180 days prior to enrollment)*
- LA diameter > 5.5 cm or LA volume >50 ml/m² indexed based on the most recent imaging (≤ 180 days prior to enrollment)*
- Heart failure with New York Heart Association (NYHA) Class III or IV
- Previous cardiac surgery (e.g. ventriculotomy or atriotomy, CABG, PTCA, stent procedure) within 90 days prior to enrollment
- Implantable cardiac device procedures (e.g. PM, ICD, CRT) within 30 days prior to enrollment
- Severe valvular disease or presence of a prosthetic - mechanical or biological - heart valve in the LA (not including valve repair and annular rings)
- Severe mitral valve regurgitation or stenosis
- Known or pre-existing severe pulmonary vein stenosis
- Interatrial baffle, closure device, patch, or patent foramen ovale (PFO) occluder
- Presence of LA appendage occlusion device
- Presence of any pulmonary vein stents
- Unstable angina or ongoing myocardial ischemia
- Previous myocardial infarction within 90 days prior to enrollment
- Vena cava embolic protection filter devices and/or known femoral thrombus;
- Known left atrial thrombus, myxoma, or intracardiac mural thrombus
- History of blood clotting or bleeding disease
- Any prior history of documented cerebral infarct, TIA, or systemic embolism [excluding a post-operative deep vein thrombosis (DVT)] ≤180 days prior to enrollment
- Active systemic infection
- Pregnant, lactating (current or anticipated during study follow up), or women of childbearing potential who are, or plan to become, pregnant during the time of the study (method of assessment upon physician's discretion)
- Subjects who are currently enrolled in any other concurrent study, with the exception of local mandatory governmental registries and observational studies/registries, without written approval from the sponsor
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: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Other: PVI procedure
Subjects will undergo ablation treatment of the pulmonary veins with the Rhythmia HDx mapping system with DirectSense technology.
Subjects indicated for ablation treatment of de-novo PAF will be selected based on the inclusion/exclusion criteria and if deemed to be eligible for participation, will be asked to sign the Informed Consent Form.
For all enrolled subjects who undergo the ablation procedure, the subjects will be treated with the commercial Rhythmia HDx System with commercially available Software Version 4.0.1 or greater (commercially approved version) with DIRECTSENSE™ and Force Computation Software Module; the IntellaMap Orion mapping catheter and the IntellaNav StablePoint ablation catheter.
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Catheter ablation of pulmonary veins with the Rhythmia HDx mapping system, IntellaMap Orion mapping catheter and IntellaNav StablePoint ablation catheter
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Association between Local Impedance drop values and PV reconnections
Time Frame: 0-3 months
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Correlation between local impedance drop collected during the blinded index procedure and sites of late PV reconnection/durable block at 3-months.
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0-3 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Association between Local Impedance drop values and acute PV reconnections
Time Frame: 0-1 month
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Correlation between local impedance drop collected during the blinded index procedure and sites of acute gaps/block after a 20-minute wait period.
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0-1 month
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Ignacio Garcia Bolao, MD, Clinica Universitaria de Navarra
- Principal Investigator: Hüseyin Ince, MD, Vivantes Klinikum am Urban
- Principal Investigator: Francesco Solimene, MD, Casa Di Cura 'Montevergine' S.P.A.
- Principal Investigator: Armin Luik, MD, Staedtisches Klinikum Karlsruhe
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)
June 28, 2021
Primary Completion (Actual)
July 21, 2022
Study Completion (Actual)
September 16, 2022
Study Registration Dates
First Submitted
February 2, 2021
First Submitted That Met QC Criteria
February 2, 2021
First Posted (Actual)
February 5, 2021
Study Record Updates
Last Update Posted (Actual)
May 11, 2023
Last Update Submitted That Met QC Criteria
May 10, 2023
Last Verified
May 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- PM011
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
IPD Plan Description
No requests for study data have been made at this time, however Boston's Scientific's policy on data sharing can be found at http:// www.bostonscientific.com/en-US/data-sharing-requests.html
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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