Canadian WATCHMAN Registry (WATCHMAN)

August 8, 2018 updated by: Jacqueline Saw, MD, Cardiology Research UBC
Canadian WATCHMAN Registry is a multicentre (8 Centres) Canadian prospective, non-randomized, registry to enrol 100 consecutive patients undergoing LAA closure with the WATCHAN device to study the safety and effectiveness of the WATCHMAN device

Study Overview

Status

Unknown

Conditions

Detailed Description

Atrial fibrillation (AF) is the most common cardiac arrhythmia with current prevalence estimated at 1.5-2% of the general population. AF is a major cause of stroke, responsible for 15% of all strokes and 30% of strokes in patients age >80. Stroke is the leading cause of long-term disability and is the 4th leading cause of death in the US. Anticoagulation is the mainstay therapy for preventing strokes in AF with a 64% relative stroke reduction and 26% relative mortality benefit with warfarin therapy. Warfarin or newer anticoagulation treatments (NOAC) have been associated with increased risk of major bleeding and therefore a significant proportion (30-50%) of eligible patients do not receive therapy due to perceived risk of bleeding. The need for newer therapy is therefore required and percutaneous left atrial appendage closure (LAAC) devices have been investigated for patients with high risk of stroke and contra-indication to long term oral anticoagulation therapy. The WATCHMAN device is one of the leading LAA closure devices and with the most world-wide clinical experience. The investigators are running a multicentre (8 Centres) Canadian prospective, non-randomized, registry to enrol 100 consecutive patients undergoing LAA closure with the WATCHAN device to study the safety and effectiveness of the WATCHMAN device.

Study Type

Observational

Enrollment (Anticipated)

100

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

  • Canada
    • British Columbia
      • Vancouver, British Columbia, Canada
        • Recruiting
        • Vancouver General Hospital
        • Contact:
        • Sub-Investigator:
          • Jacqueline Saw, MD

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

Sampling Method

Probability Sample

Study Population

Patients undergoing WATCHMAN device Implantation

Description

Inclusion Criteria:

  • Age ≥18 years, and
  • CHADS2 ≥1 and/or CHADS-VASc ≥2, and
  • Prior major bleeding (intracranial, gastrointestinal bleeding, intraocular, respiratory, genitourinary, retroperitoneal, pericardial, anemia requiring transfusions, etc.), or contraindications to long-term OAC (HASBLED ≥3, high fall risk, cerebral aneurysm, blood dyscrasias, aortic dissection, etc.), or failure of OAC (stroke/TIA while on OAC)

Exclusion Criteria:

  • Presence of LAA thrombus
  • Severe untreated mitral stenosis (no prior valve replacement)

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
Main Group
This an observational registry - there is only one group

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Major Adverse Events
Time Frame: From up to 24 Months from procedure
Composite: Cardiovascular death (or unexplained death), device embolization, stroke, systemic embolism, myocardial infarction, cardiac tamponade, major bleeding, and the need for cardiovascular surgery
From up to 24 Months from procedure

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Long-term Events
Time Frame: From hospital discharge to 24 Months
Composite: Overall mortality, cardiovascular mortality, ischemic and hemorrhagic stroke, systemic embolization, late device embolization (beyond hospitalization)
From hospital discharge to 24 Months
Procedural Technical Success
Time Frame: Procedural (up to the end of procedure)
Procedure duration and complications
Procedural (up to the end of procedure)
Procedural complications
Time Frame: Procedural (up to hospital discharge)
Stroke (ischemic and hemorrhagic), air embolism, pericardial effusion (minor - not requiring intervention; serious - requiring percutaneous or surgical drainage), cardiac perforation, device embolization, major or life-threatening/disabling bleeding
Procedural (up to hospital discharge)

Other Outcome Measures

Outcome Measure
Time Frame
Ability to switch to single antiplatelet therapy
Time Frame: up to 3 Months from procedure
up to 3 Months from procedure
Prevalence and severity of residual leak
Time Frame: up to 3 Months from procedure
up to 3 Months from procedure
Prevalence of device thrombus
Time Frame: up to 3 Months from procedure
up to 3 Months from procedure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Cardiology Research UBC

Investigators

  • Principal Investigator: Jacqueline Saw, MD, University of British Columbia

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

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

September 1, 2014

Primary Completion (Anticipated)

September 1, 2020

Study Completion (Anticipated)

September 1, 2020

Study Registration Dates

First Submitted

March 24, 2015

First Submitted That Met QC Criteria

August 24, 2015

First Posted (Estimate)

August 27, 2015

Study Record Updates

Last Update Posted (Actual)

August 10, 2018

Last Update Submitted That Met QC Criteria

August 8, 2018

Last Verified

August 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • H14-01816

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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