Left Atrial Appendage Closure for Atrial Fibrillation

Not currently recruiting at 8 trial locations
BP
Overseen ByBryan Petrisko, MS
Age: 18+
Sex: Any
Trial Phase: Academic
Sponsor: Biosense Webster, Inc.
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial explores a new device called the Laminar Left Atrial Appendage Closure System. The goal is to determine its safety and effectiveness for individuals with non-valvular atrial fibrillation (a heart rhythm disorder) who cannot take blood thinners or need an alternative. It suits those advised to take blood thinners but cannot due to other health reasons. Participants should have ongoing atrial fibrillation issues and seek an alternative solution. As an unphased trial, this study provides participants the opportunity to explore a new treatment option that could potentially enhance their quality of life.

Will I have to stop taking my current medications?

The trial does not specify if you need to stop taking your current medications. However, it is designed for people who cannot take or need an alternative to anticoagulant medications, so you might need to stop those if you are currently on them.

What prior data suggests that the Laminar Left Atrial Appendage Closure System is safe for patients with non-valvular atrial fibrillation?

Research shows that the Laminar Left Atrial Appendage Closure System has undergone safety testing in both animals and people with non-valvular atrial fibrillation. In these studies, the device appears promising, with no major safety issues reported so far. However, this is an early feasibility study, indicating that the treatment is still in the initial stages of human testing. Researchers are closely monitoring its safety to ensure it is well-tolerated by patients. As trials progress, more information will become available to better understand its safety.12345

Why are researchers excited about this trial?

The Laminar Left Atrial Appendage Closure System is unique because it offers a new approach to managing atrial fibrillation by physically closing off the left atrial appendage. Unlike traditional treatments that rely on blood thinners to reduce stroke risk, this device directly targets the source of clot formation by sealing it off. This reduces the need for long-term medication and its associated risks. Researchers are excited about its potential to offer a more permanent and less medication-dependent solution for patients with atrial fibrillation.

What evidence suggests that the Laminar Left Atrial Appendage Closure System is effective for non-valvular atrial fibrillation?

Research shows that the Laminar Left Atrial Appendage Closure System, which participants in this trial will receive, might help people with non-valvular atrial fibrillation, a type of irregular heartbeat. Early studies in animals and humans indicate that it can safely close the left atrial appendage, a part of the heart linked to blood clots in people with this condition. Blocking it might lower the risk of clots without needing blood-thinning medications. Other studies have compared this system to existing devices and suggest it may work just as well. However, more research is needed to confirm these findings in a larger group of people.12346

Are You a Good Fit for This Trial?

This study is for adults with non-valvular atrial fibrillation who need an alternative to blood thinners. Candidates should have a CHA2DS2-VASc score of at least 2 (men) or 3 (women), be able to follow the study plan, and consent to participate. People can't join if they've had only one AF episode, severe heart issues, recent major health events like stroke or infection, are pregnant/nursing, or have conditions that prevent proper testing or use of the device.

Inclusion Criteria

My stroke risk score is 2 or more if I'm a man, and 3 or more if I'm a woman.
I have a type of irregular heartbeat not caused by a heart valve issue.
Subject or Legally Authorized Representative informed of the nature of the study, is willing and able to comply with the protocol, and has provided written informed consent per Institutional Review Board (IRB) requirements
See 3 more

Exclusion Criteria

I have not had an AF ablation in the last 90 days but may need one soon.
I am not allergic to aspirin, heparin, nickel, or titanium.
I am not pregnant or nursing and do not plan to become pregnant within a year.
See 26 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Closure of the left atrial appendage with the Laminar Left Atrial Appendage Closure system

Procedure day
1 visit (in-person)

Follow-up

Participants are monitored for safety and effectiveness after the procedure

5 years
Regular visits as per study protocol

What Are the Treatments Tested in This Trial?

Interventions

  • Laminar Left Atrial Appendage Closure System
Trial Overview The trial tests the Laminar Left Atrial Appendage Closure System's safety and effectiveness in patients with atrial fibrillation who cannot take anticoagulants. It aims to provide a non-drug option for preventing strokes by sealing off a part of the heart where blood clots tend to form.
How Is the Trial Designed?
1Treatment groups
Experimental Treatment
Group I: TreatmentExperimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Biosense Webster, Inc.

Lead Sponsor

Trials
128
Recruited
37,100+
Dr. Nick West profile image

Dr. Nick West

Biosense Webster, Inc.

Chief Medical Officer

MD from Harvard Medical School

Jasmina Brooks profile image

Jasmina Brooks

Biosense Webster, Inc.

Chief Executive Officer since 2023

Bachelor of Science in Biomedical Engineering from Louisiana Tech University

Laminar, Inc.

Lead Sponsor

Trials
4
Recruited
1,600+

Published Research Related to This Trial

In a study of 140 patients with non-valvular atrial fibrillation, the LAmbre LAA occluder system demonstrated a 100% implant success rate, comparable to the Amulet and Watchman devices, indicating its effectiveness as an alternative to anticoagulation.
All three devices (LAmbre, Amulet, and Watchman) showed low rates of major peri-procedural adverse events and maintained good clinical outcomes at six months, suggesting they are safe options for left atrial appendage closure.
Left atrial appendage occlusion using LAmbre Amulet and Watchman in atrial fibrillation.Chen, S., Chun, KRJ., Bordignon, S., et al.[2020]

Citations

NCT05565599 | An Early Feasibility Study Evaluating the ...The objective of this study is to evaluate the safety and effectiveness of the Laminar Left Atrial Appendage Closure System to treat patients with non-valvular ...
Transcatheter Left Atrial Appendage Exclusion: Preclinical ...This study evaluates the safety and efficacy of the Laminar LAA exclusion device in healthy animals and human subjects with nonvalvular atrial fibrillation at ...
Transcatheter Left Atrial Appendage Exclusion: Preclinical ...This study evaluates the safety and efficacy of the Laminar LAA exclusion device in healthy animals and human subjects with nonvalvular atrial ...
Biosense Webster Begins Enrollment of Pivotal Trial ...The study will compare the safety and efficacy of the Laminar LAAX System to commercially available left atrial appendage (LAA) closure devices.
A Pivotal Investigational Device Exemption Study on ...The purpose of this study is to compare the safety and effectiveness of Laminar Left Atrial Appendage Closure (LAAC) device as compared to the commercially ...
Laminar LAAX Pivotal IDE StudyThis clinical trial will compare the safety and efficacy of the Laminar Left Atrial Appendage Closure System to commercially available left atrial appendage ...
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