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Investigational Device Evaluation of the WATCHMAN FLX™ LAA Closure Technology (PINNACLE FLX)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02702271
Recruitment Status : Active, not recruiting
First Posted : March 8, 2016
Last Update Posted : January 15, 2019
Information provided by (Responsible Party):
Boston Scientific Corporation

Brief Summary:
The study is a prospective, non-randomized, multi-center investigation to establish the safety and effectiveness of the WATCHMAN FLX™ Left Atrial Appendage Closure Device for subjects with non-valvular atrial fibrillation who are eligible for long-term anti-coagulation therapy to reduce the risk of stroke but who have a rationale to seek a non-pharmacologic alternative.

Condition or disease Intervention/treatment Phase
Atrial Fibrillation Device: WATCHMAN FLX Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 458 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Protection Against Embolism for Non-valvular AF Subjects: Investigational Device Evaluation of the WATCHMAN FLX™ LAA Closure Technology
Actual Study Start Date : May 7, 2018
Estimated Primary Completion Date : June 2021
Estimated Study Completion Date : June 2021

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: WATCHMAN FLX
WATCHMAN FLX implant: This is a single arm study
Left atrial appendage closure with WATCHMAN FLX

Primary Outcome Measures :
  1. Procedure-related complications [ Time Frame: 7 days or Discharge; whichever is later ]
    The occurrence of one of the following events : all-cause death, ischemic stroke, systemic embolism, or device- or procedure-related events requiring open cardiac surgery or major endovascular intervention such as pseudoaneurysm repair, AV fistula repair, or other major endovascular repair.

  2. Device Closure [ Time Frame: 12-months ]
    The rate of effective LAA closure defined as any peri-device flow < 5mm demonstrated by TEE at 12 months

Secondary Outcome Measures :
  1. Ischemic stroke, systemic embolism [ Time Frame: 24-months ]
    The occurrence of ischemic stroke or systemic embolism

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. The subject is of legal age to participate in the study per the laws of their respective geography.
  2. The subject has documented paroxysmal, persistent, permanent or long-term/longstanding persistent non-valvular atrial fibrillation (i.e., the subject has not been diagnosed with rheumatic mitral valvular heart disease).
  3. The subject is eligible for the defined protocol pharmacologic regimen of warfarin and antiplatelet therapy following WATCHMAN FLX Device implant.
  4. The subject is eligible to come off warfarin therapy if the LAA is sealed (i.e., the subject has no other conditions that would require long-term warfarin therapy suggested by current standard medical practice).
  5. The subject has a calculated CHADS2 score of 2 or greater or a CHA2DS2-VASc score of 3 or greater.
  6. The subject is able to understand and willing to provide written informed consent to participate in the trial.
  7. The subject is able and willing to return for required follow-up visits and examinations.

Exclusion Criteria:

  1. Subjects who are currently enrolled in another investigational study or registry that would directly interfere with the current study, except when the subject is participating in a mandatory governmental registry, or a purely observational registry with no associated treatments. Each instance must be brought to the attention of the sponsor to determine eligibility, regardless of type of co-enrollment being proposed.
  2. The subject requires long-term anticoagulation therapy for reasons other than AF-related stroke risk reduction, for example due to an underlying hypercoaguable state (i.e., even if the device is implanted, the subjects would not be eligible to discontinue warfarin due to other medical conditions requiring chronic warfarin therapy).
  3. The subject is contraindicated for warfarin therapy.
  4. The subject is contraindicated or allergic to aspirin.
  5. Subject is contraindicated for clopidogrel (P2Y12 inhibitor for Japan).
  6. The subject is indicated for clopidogrel (P2Y12 inhibitor for Japan) therapy or has taken clopidogrel (P2Y12 inhibitor for Japan) within 7 days prior to the WATCHMAN FLX Device implant.
  7. The subject had or is planning to have any cardiac or non-cardiac invasive or surgical procedure within 30 days prior to or 60 days after the WATCHMAN FLX Device implant (including, but not limited to: cardioversion, coronary angiogram with or without percutaneous coronary intervention (PCI), cardiac ablation, cataract surgery, endoscopy, etc.).
  8. The subject had a prior stroke (of any cause, whether ischemic or hemorrhagic) or transient ischemic attack (TIA) within the 90 days prior to enrollment.
  9. The 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 90 days prior to enrollment.
  10. The subject has a history of atrial septal repair or has an ASD/PFO device.
  11. The subject has an implanted mechanical valve prosthesis in any position.
  12. The subject currently or has had any documented history of, New York Heart Association Class IV Congestive Heart Failure.
  13. The subject is of childbearing potential and is, or plans to become pregnant during the time of the study (method of assessment upon study physician's discretion).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02702271

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Sponsors and Collaborators
Boston Scientific Corporation
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Principal Investigator: Shephal Doshi, MD St. John's Health Center
Principal Investigator: Saibal Kar, MD Cedars-Sinai Medical Center

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Responsible Party: Boston Scientific Corporation Identifier: NCT02702271    
Other Study ID Numbers: 91081206
First Posted: March 8, 2016    Key Record Dates
Last Update Posted: January 15, 2019
Last Verified: December 2018

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Device Product Not Approved or Cleared by U.S. FDA: Yes
Additional relevant MeSH terms:
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Atrial Fibrillation
Arrhythmias, Cardiac
Heart Diseases
Cardiovascular Diseases
Pathologic Processes