- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05324371
A Pilot Study to Assess WATCHMAN FLX™ Implants by Cardiac Computed Tomography, Magnetic Resonance Imaging and Transesophageal Echocardiography: WATCHMAN FLX™ CT
April 22, 2024 updated by: Boston Scientific Corporation
WATCHMAN FLX™ CT is a prospective, single-arm, single-center, post-market investigation to assess device tissue coverage in subjects with non-valvular atrial fibrillation (AF) who receive the WATCHMAN FLX device to reduce the risk of stroke.
Serial advanced imaging modalities such as CT and TEE will be used.
Study Overview
Status
Active, not recruiting
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
25
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 Contact
- Name: Nilou Zilinek
- Phone Number: 508-683-6127
- Email: Nilou.Zilinek@bsci.com
Study Locations
-
-
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Aarhus, Denmark
- Aarhus University Hospital
-
-
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:
- Subject is of legal age to participate in the study per the laws of their respective geography.
- Subject has documented non-valvular atrial fibrillation (i.e., atrial fibrillation in the absence of moderate or greater mitral stenosis or a mechanical heart valve).
- Subject is clinically indicated for a WATCHMAN FLX device.
- Subject is deemed suitable for the protocol-defined pharmacologic regimen.
- Subject or legal representative is able to understand and willing to provide written informed consent to participate in the study.
- Subject is able and willing to return for required follow-up visits and examinations.
Exclusion Criteria:
- Subject is currently enrolled in another investigational study, except if the subject is participating in a mandatory governmental registry, or a purely observational registry with no associated treatment.
- Subject has eGFR <30 mL/min (chronic kidney disease stage IV or stage V).
- Subject is contraindicated for TEE.
- Subject requires long-term anticoagulation therapy for reasons other than AF-related stroke risk reduction (e.g., due to an underlying hypercoagulable state).
- Subject had or is planning to have any cardiac or non-cardiac intervention or surgical procedure within 30 days prior to or 60 days after implant (including, but not limited to, cardioversion, percutaneous coronary intervention, cardiac ablation, cataract surgery, etc.).
- Subject had a prior stroke (of any cause, whether ischemic or hemorrhagic) or transient ischemic attack (TIA) within the 30 days prior to enrollment.
- Subject had a prior major bleeding event per ISTH definitions within the 30 days prior to enrollment. Lack of resolution of related clinical sequelae or planned and pending interventions to resolve bleeding/bleeding source are a further exclusion regardless of timing of the bleeding event.
- Subject has an active bleed.
- Subject has a reversible cause for AF or has transient AF.
- Subject has no LAA or the LAA is surgically ligated.
- Subject has had a myocardial infarction (MI) documented in the clinical record as either a non-ST elevation MI (NSTEMI) or as an ST-elevation MI (STEMI), with or without intervention, within 30 days prior to enrollment.
- Subject has a history of atrial septal repair or has an atrial septal defect/patent foramen ovale (ASD/PFO) device.
- Subject has a known contraindication to percutaneous catheterization procedure.
- Subject has a cardiac tumor.
- Subject has signs/symptoms of acute or chronic pericarditis.
- Subject has an active infection.
- There is evidence of tamponade physiology.
- Subject has New York Heart Association Class IV congestive heart failure at the time of enrollment.
- Subject is of childbearing potential and is, or plans to become, pregnant during the time of the study (method of assessment per study physician's discretion).
- Subject has a documented life expectancy of less than 6 months.
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 |
---|---|
Experimental: Device Arm
WATCHMAN FLX™ device implantation
|
Left atrial appendage closure using the Watchman FLX device
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Device tissue coverage
Time Frame: 14, 45 and 90 days post-implant
|
• Device surface morphology (inclusive of tissue coverage) post implant procedure as assessed over time using the serial advanced imaging modalities of cardiac computed tomography (CT) and transesophageal echocardiography (TEE)
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14, 45 and 90 days post-implant
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Jens Erik Nielsen-Kudsk, MD, Aarhus University Hospital Skejby
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)
November 9, 2022
Primary Completion (Estimated)
September 1, 2024
Study Completion (Estimated)
July 1, 2025
Study Registration Dates
First Submitted
March 17, 2022
First Submitted That Met QC Criteria
April 11, 2022
First Posted (Actual)
April 12, 2022
Study Record Updates
Last Update Posted (Actual)
April 23, 2024
Last Update Submitted That Met QC Criteria
April 22, 2024
Last Verified
April 1, 2024
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- S2423
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
IPD Plan Description
The data and study protocol for this clinical trial may be made available to other researchers in accordance with the Boston Scientific Data Sharing Policy (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
product manufactured in and exported from the U.S.
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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