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WATCHMAN FLX Pro European Registry

WATCHMAN FLX Pro European Registry

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07262255
Enrollment
1000
Registered
2025-12-03
Start date
2025-12-17
Completion date
2028-09-01
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Left Atrial Appendage Closure, Non-valvular Atrial Fibrillation (AF)

Keywords

LAAC

Brief summary

The WATCHMAN FLX Pro European registry is intended to gather real world clinical data for patients undergoing left atrial appendage closure (LAAC) with the WATCHMAN FLX™ Pro device. In a subregistry with approximately 300 patients, it is intended to use the VersaCross Connect™ LAAC Access Solution.

Interventions

DEVICELeft atrial appendage closure

The WATCHMAN FLX Pro LAAC Technology is intended to prevent thrombus embolization from the left atrial appendage and reduce the risk of life-threatening bleeding events in adult patients with non-valvular atrial fibrillation who are eligible for anticoagulation therapy or who have a contraindication to anticoagulation therapy. The VersaCross Connect™ LAAC Access Solution is indicated for the percutaneous introduction of various types of cardiovascular catheters and guidewires to all heart chambers, including the left atrium via transseptal perforation / puncture.

Sponsors

Boston Scientific Corporation
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Subject is attempted to be treated with the WATCHMAN FLX™ Pro LAAC device. 2. Subject has non-valvular atrial fibrillation (i.e., atrial fibrillation in the absence of moderate or greater mitral stenosis or a mechanical heart valve) and is clinically indicated for a WATCHMAN FLX™ Pro LAAC device, per the Instructions for Use (IFU). 3. Subject or legal representative who are willing and capable of providing informed consent. 4. Subject is able and willing to return for required follow-up visits and examinations. 5. Subject whose age is 18 years or above, or who is of legal age to give informed consent specific to state and national law.

Exclusion criteria

1. Subject has a documented life expectancy of less than 12 months. 2. Subject who is currently enrolled in another investigational study or registry except when the subject is participating in a mandatory governmental registry, or a purely observational registry with no associated treatments. 3. Intracardiac thrombus is present. 4. An atrial septal defect repair or closure device or a patent foramen ovale repair or closure device is present. 5. The LAA anatomy will not accommodate a Closure Device. 6. Subject has a known hypersensitivity or contraindications according to IFU. 7. Subject is of childbearing potential and is, or plans to become, pregnant during the time of the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with a safety event treated with the WATCHMAN FLX ProBetween the time of procedure and within 7 days following the procedure or by hospital discharge, whichever is laterProportion of subjects with one or more of the following events between the time of procedure 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, AV fistula repair, or other major endovascular repair. Percutaneous catheter drainage of pericardial effusions, snaring of an embolized device, thrombin injection to treat femoral pseudoaneurysm and minor nonsurgical treatments of access site complications are excluded from this endpoint.
Number of participants with a safety event treated with the VersaCross Connect™ LAAC Access SolutionBetween the time of procedure and within 7 days following the procedure or by hospital discharge, whichever is laterProportion of subjects with one or more of the following events between the time of procedure and within 7 days following the procedure or by hospital discharge, whichever is later: For all enrolled subjects, who had an attempt to insert the VersaCross Connect™ LAAC Access Solution device, the composite rate of all-cause death, all stroke, systemic embolism, pericardial effusion resulting in interventions\*, and ISTH major bleeding. \*Pericardial effusion/tamponade requiring pericardiocentesis or surgery to treat
Number of participants with a successful VersaCross Connect™ LAAC Access Solution treatmentCompletion of transseptal punctureVersaCross Connect™ LAAC Access Solution acute procedural success: Acute Procedural Success is defined as transseptal puncture success (VersaCross RF-wire crossing into left atrium).

Countries

Denmark, Germany, Italy, Poland, Spain, Switzerland

Contacts

CONTACTThomas Näschen, PhD
Thomas.Naeschen@bsci.com+491707828594
PRINCIPAL_INVESTIGATORMarek Grygier, Prof. MD, PHD

Uniwersytecki Szpital Kliniczny w Poznaniu

PRINCIPAL_INVESTIGATORArian Sultan, Prof. MD

Asklepios Klinik Saint Georg

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026