- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04569734
The ICE WATCHMAN Trial
December 26, 2023 updated by: Mohamad Adnan Alkhouli, Mayo Clinic
Safety and Feasibility of Intra-Cardiac Echocardiography in Guiding Left Atrial Appendage Occlusion With the Watchman Device: The ICE WATCHMAN Study (Data Coordinating Center)
The aim of this multi-center study will be to assess the feasibility and safety of left atrial appendage (LAA) occlusion with the WATCHMAN™ device using a standardized intra-procedural intracardiac echocardiography (ICE) protocol under moderate sedation for procedural guidance.
By eliminating the need for general anesthesia, the hope is to show a reduction in procedural time, decrease use of supplemental invasive procedures (central venous line, invasive arterial pressure monitoring and transesophageal echocardiography) and quicker patient recovery time.
This approach can decrease healthcare resource utilization and safely simplify left atrial appendage closure with the WATCHMAN device.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
The study will be a prospective, non-randomized multicenter registry of 100 patients undergoing LAA closure with the WATCHMAN device (possibly with WATCHMAN FLX when approved) utilizing an intra-procedural ICE probe under moderate sedation.
The primary feasibility endpoint will be ability to successfully implant the WATCHMAN device.
Implant success is defined as confirmation of the device-specified release PASS (Position, Anchor, Size, Seal) criteria, successful device release, and adequate seal (defined as a residual leak <5 mm) as assessed by a core lab interpretation of the TEE 45 days post-implant.
The primary safety endpoint will be a composite of major complications (major bleeding [intracranial bleeding, or bleeding requiring blood transfusion], pericardial effusion requiring pericardiocentesis or surgery, device embolization, procedural-related stroke, or procedural related death).
Additional measured end points will be: freedom from conversion to general anesthesia and/or standard TEE during implant, the incidence and the size of iatrogenic atrial septal defect on 45 day TEE.
The ICE procedural images will also be collected and analyzed by an independent committee composed of non-implanting interventionalist, and an imaging specialist.
The images will be graded in quality as optimal (TEE equivalent), acceptable (adequate but not as detailed as TEE), and inadequate.
This prospective study, along with its endpoints will be registered in clinicaltrials.gov.
Study Type
Observational
Enrollment (Actual)
101
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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California
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Santa Monica, California, United States, 98404
- Pacific Heart Institute
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Minnesota
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Rochester, Minnesota, United States, 55905
- Mayo Clinic Rochester
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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
Sampling Method
Non-Probability Sample
Study Population
Participation in the study is based on institutional standard of care practice for assessment of WATCHMAN eligibility.
Patients that are being considered for LAA Closure with WATCHMAN device implant based on a history of non-valvular atrial fibrillation who are at increased risk for stroke and systemic embolism based on CHADS2VASc score >2 but have an appropriate rationale to seek a non-pharmacologic alternative to anti-thrombotic therapy due to risks of anti-thrombotic therapy.
Patients should be able to tolerate the WATCHMAN device implant procedure without the need for general anesthesia.
Description
Inclusion Criteria:
- The patients is eligible to undergo WATCHMAN device implant procedure
- The patient is eligible for short term anticoagulation therapy
- Ability to tolerate the procedure without the need for general anesthesia as assessed by the treating physician(s)
- Ability to give informed consent for the procedure
- The patient is able and willing to undergo the procedure under moderate sedation
- The patient is able and willing to return for required 45-day TEE.
Exclusion Criteria:
- Patient has contraindication for short term anticoagulation
- The patient has history of a hypercoagulable state per medical record documentation
- Pregnancy or planning to get pregnant during the investigation.
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
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
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Experimental: Treatment Group
Determination for participation in the study is based on institutional standard of care practice for assessment of WATCHMAN eligibility.
Patients that are being considered for LAA Closure with WATCHMAN device implant based on a history of non-valvular atrial fibrillation who are at increased risk for stroke and systemic embolism based on CHADS2VASc score >2 but have an appropriate rationale to seek a non-pharmacologic alternative to anti-thrombotic therapy due to risks of anti-thrombotic therapy.
Patients should be able to tolerate the WATCHMAN device implant procedure without the need for general anesthesia.
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The study will be a prospective, non-randomized multicenter registry of 100 patients undergoing LAA closure with the WATCHMAN device (possibly with WATCHMAN FLX when approved) utilizing an intra-procedural ICE probe under moderate sedation.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Successfully implant the WATCHMAN device
Time Frame: 45 days post-implant
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Implant success is defined as confirmation of the device-specified release PASS (Position, Anchor, Size, Seal) criteria, successful device release, and adequate seal (defined as a residual leak <5 mm) as assessed by a core lab interpretation of the TEE 45 days post-implant
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45 days post-implant
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Absence of a composite of major complications
Time Frame: 7 days post-implant
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Absence of a composite of major complications such major bleeding [intracranial bleeding, or bleeding requiring blood transfusion], pericardial effusion requiring pericardiocentesis or surgery, device embolization, procedural-related stroke, or procedural related death)
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7 days post-implant
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Absence of a composite of major complications
Time Frame: 45 days post-implant
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Absence of a composite of major complications such major bleeding [intracranial bleeding, or bleeding requiring blood transfusion], pericardial effusion requiring pericardiocentesis or surgery, device embolization, procedural-related stroke, or procedural related death)
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45 days post-implant
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Freedom from conversion to general anesthesia and/or standard TEE during implant
Time Frame: During procedure
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Freedom from conversion to general anesthesia and/or standard TEE during implant
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During procedure
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Freedom from the incidence and the size of iatrogenic atrial septal defect
Time Frame: 45 days post-implant
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Freedom from the incidence and the size of iatrogenic atrial septal defect on 45 day TEE
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45 days post-implant
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Mohamad Adnan Alkhouli, MD, Mayo Clinic
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.
Helpful Links
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)
September 22, 2020
Primary Completion (Actual)
December 15, 2023
Study Completion (Actual)
December 15, 2023
Study Registration Dates
First Submitted
September 24, 2020
First Submitted That Met QC Criteria
September 24, 2020
First Posted (Actual)
September 30, 2020
Study Record Updates
Last Update Posted (Actual)
December 27, 2023
Last Update Submitted That Met QC Criteria
December 26, 2023
Last Verified
December 1, 2023
More Information
Terms related to this study
Other Study ID Numbers
- 19-012524
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
Yes
product manufactured in and exported from the U.S.
Yes
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.
Clinical Trials on Left Atrial Appendage Closure With WATCHMAN Device Utilizing an Intra-procedural ICE Probe
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Inova Health Care ServicesBoston Scientific CorporationCompletedLeft Atrial Appendage Closure | WATCHMAN Device ImplantationUnited States
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Vanderbilt University Medical CenterBoehringer IngelheimActive, not recruitingAtrial Fibrillation | Left Atrial Appendage Thrombosis | Device Related Thrombus | Watchman LAA Closure DeviceUnited States
Clinical Trials on WATCHMAN device implant procedure utilizing ICE probe
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Boston Scientific CorporationActive, not recruitingStrokeUnited States, Denmark, Germany, Netherlands, United Kingdom, Belgium, Canada, Czechia, Italy