A Study to Evaluate the Safety and Effectiveness of the Left Atrial Appendage Closure Therapy Using BSJ003W

Not Applicable

Completed

Conditions: Atrial Fibrillation Non-Rheumatic

Interventions: Device: BSJ003W

Registration Number: NCT03033134

Lead Sponsor: Boston Scientific Japan K.K.

Brief Summary: The purpose of this study is to confirm the safety and effectiveness of the BSJ003W in Japanese patients with non-valvular atrial fibrillation at increased risk of thromboembolism in Japanese Clinical environment

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 54

Inclusion Criteria

The subject is Japanese, over 20 years old and provides written informed consent to participate in the trial
The subject has documented paroxysmal, persistent or permanent non-valvular atrial fibrillation
The subject has a calculated CHA2DS2-VASc score of 2 or greater and is recommended for long-term oral anti-coagulation therapy
The subject is deemed by their physicians to be suitable for anticoagulant therapy and have an appropriate rationale to seek a non-pharmacologic alternative to warfarin
The subject is eligible to come off warfarin therapy if the LAA (left atrial appendage) is sealed (i.e. the subject has no other conditions that would require warfarin therapy).

Exclusion Criteria

The subject has a prior stroke (ischemic or hemorrhagic) or transient ischemic attack within the 90 days prior to consent
The subject has had a myocardial infarction either non-ST elevation or ST elevation myocardial infarction within 90 days prior to consent with or without intervention
The subject had or is planning to have any cardiac (e.g. cardioversion, coronary angiogram, percutaneous coronary intervention, cardiac ablation, etc.) or non-cardiac invasive or surgical procedure (e.g. cataract surgery, endoscopy, etc.) within 30 days prior or 45 days after the BSJ003W implant
The subject has a history of atrial septal repair or has an atrial septal defect/persistent foramen ovale device
The subject has an implanted mechanical valve prosthesis in any position
The subject currently New York Heart Association class IV congestive heart failure
The subject is contraindicated to aspirin
The subject is contraindicated or seriously allergic to thienopyridine
The subject is of childbearing potential and is, or plans to become pregnant during the time of the study
The subject is not able and willing to return for required follow-up visits and examinations
Subjects who are currently enrolled in another investigational study (of which primary endpoint follow-up have not been completed yet).
The subject has other reason not to be eligible for this study per investigators' discretion.

Study & Design

Study Type: INTERVENTIONAL

Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
BSJ003W	BSJ003W	BSJ003W implant group

Primary Outcome Measures

Name	Time	Method
Number of Participants With Complications; One of the Following Events	Between the time of implant and within 7 days following the procedure or by hospital discharge, whichever is later	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, arteriolar-venular fistula repair, or other major endovascular repair.
Number of Participants With One of the Following Events: Stroke (All/ Ischemic/ Hemorrhagic), Systemic Embolism and Cardiovascular(CV) Death (Including Unexplained Cause)	24-month	The occurrence of composite events including stroke (all/ ischemic/ hemorrhagic), systemic embolism and cardiovascular death (including unexplained cause) till 6-month post implant
The Rate of Effective Left Atrial Appendage (LAA) Closure	45-day, 6-month, 12-month	The effective LAA closure is defined as peri-device flow \<= 5mm demonstrated by TEE. TEE measurements will be assessed by an independent Core Laboratory.

Secondary Outcome Measures

Name	Time	Method
Number of Participants With Ischemic Stroke or Systemic Embolism	24-month	The occurrence of ischemic stroke or systemic embolism (excluding 7 days after implanting or day after hospital discharge whichever is the later)
Number of Participants With Major Bleeding	24-month	Major bleeding is defined as per BARC bleeding definition type 3 or 5. Type 3 Type 3a: Overt bleeding plus hemoglobin drop of 3 to 5 g/dL\* (provided hemoglobin drop is related to bleed), Any transfusion with overt bleeding Type 3b: Overt bleeding plus hemoglobin drop 5 g/dL\* (provided hemoglobin drop is related to bleed) Cardiac tamponade, Bleeding requiring surgical intervention for control (excluding dental/nasal/skin/hemorrhoid), Bleeding requiring intravenous vasoactive agents Type 3c: Intracranial hemorrhage (does not include microbleeds or hemorrhagic transformation, does include intraspinal), Subcategories confirmed by autopsy or imaging or lumbar puncture Intraocular bleed compromising vision Type 5: fatal bleeding Type 5a: Probable fatal bleeding; no autopsy or imaging confirmation but clinically suspicious Type 5b: Definite fatal bleeding; overt bleeding or autopsy or imaging confirmation
Number of Participants With Clinically Overt Non-fatal Bleeding	24-month	Clinically overt non-fatal bleeding is defined as per BARC bleeding definition type 2. Type 2: any overt, actionable sign of hemorrhage (eg, more bleeding than would be expected for a clinical circumstance, including bleeding found by imaging alone) that does not fit the criteria for type 3, 4, or 5 but does meet at least one of the following criteria: (1) requiring nonsurgical, medical intervention by a healthcare professional, (2) leading to hospitalization or increased level of care, or (3) prompting evaluation

Trial Locations

Locations (10): Toho University Ohashi Medical Center
🇯🇵
Meguro-ku, Tokyo, Japan
Kokura Memorial Hospital
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Kitakyushu, Fukuoka, Japan
Shonan Kamakura General Hospital
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Kamakura-city, Kanagawa, Japan
Tokyo Medical and Dental University Medical Hospital
🇯🇵
Bunkyo-ku, Tokyo, Japan
National Cerebral and Cardiovascular Center
🇯🇵
Suita, Osaka, Japan
University of Tsukuba Hospital
🇯🇵
Tsukuba, Ibaraki, Japan
Sendai Kousei Hospital
🇯🇵
Sendai, Miyagi, Japan
Iwate Medical University Hospital
🇯🇵
Morioka, Iwate, Japan
Keio University Hospital
🇯🇵
Shinjuku-ku, Tokyo, Japan
Sakakibara Heart Institute
🇯🇵
Fuchu, Tokyo, Japan