LAAC-registry: Clinical Outcome After Echocardiography-guided LAA-closure

February 21, 2023 updated by: University Hospital Inselspital, Berne
The study aims at comparing, in a large cohort of consecutive clinically indicated left atrial appendage closure, clinical and imaging outcomes between different subpopulations.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Percutaneous left atrial appendage closure (LAAC) has established itself in clinical practice as a safe and efficient therapeutic option for atrial fibrillation patients with a relative/absolute contraindication to oral anticoagulation. The purpose of this observational study is to prospectively collect procedural and follow-up data of all patients submitted to a clinically indicate LAAC in order to assess the impact of patient characteristics, procedural technique (imaging used to guide/plan procedure, device implanted, post-procedural drug regimens, etc.) on procedural safety and efficacy. The endpoints will be assessed by means of clinical follow-up at 1-3-5 years after LAAC and imaging exams (TEE at1-3 months, CCTA at 1-13months).

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1000

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Switzerland
      • Bern, Switzerland, 3010
        • Recruiting
        • Bern University Hospital Inselspital
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with paroxysmal, persistent, or permanent non-valvular AF and CHA2DS2-VASc Score of ≥2 that are scheduled to undergo to an elective Left Atrial Appendage Closure

Description

Inclusion Criteria:

  • Age> 18
  • Written informed consent to participate in the study
  • Patients with paroxysmal, persistent, or permanent non-valvular AF and CHA2DS2-VASc Score of ≥2 that are planned for an elective LAA-closure
  • Anatomic characteristics allow placement of a CE marked device, dedicated for LAAC

Exclusion Criteria:

  • None. Considering the nature of the project, which is to prospectively collect information on all patients treated with LAAC in our center, we will only exclude patients unwilling to sign the informed consent.

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

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Primary Safety Endpoint
Time Frame: 7 days
Composite of Death, cerebrovascular events, cardiac tamponade, need for urgent surgery, need for cardiopulmonary resuscitation, device embolization, non vascular access-related major or life-threatening bleeding (according to the Bleeding academic research Criteria (BARC) type 3a, 3b, 3c, or 5) or acute kidney injury.
7 days
Primary Efficacy Endpoint - Incidence of cardiovascular death, ischemic stroke and systemic embolism
Time Frame: 1 to 5 Years
Protection from cardiovascular death, ischemic stroke and systemic embolism
1 to 5 Years
Secondary Efficacy Endpoint - Incidence of technical success
Time Frame: 7 days to 13 months
Technical success defined as adequate LAA ostium closure (without residual PDL>5mm or patent lobes) in absence of device complications (according to the Munich Consensus Document)
7 days to 13 months
Feasibility Endpoint - Total procedure time (min)
Time Frame: During the LAAC Procedure (≃ 60 minutes )
Total procedure time (min)
During the LAAC Procedure (≃ 60 minutes )
Feasibility Endpoint - dose of contrast medium (ml)
Time Frame: During the LAAC Procedure (≃ 60 minutes )
dose of contrast medium (ml)
During the LAAC Procedure (≃ 60 minutes )
Feasibility Endpoint - dose of x-ray (cGy.cm2)
Time Frame: During the LAAC Procedure (≃ 60 minutes )
dose of x-ray (cGy.cm2)
During the LAAC Procedure (≃ 60 minutes )
Feasibility Endpoint - number of device implantation attempt during the procedure (number)
Time Frame: During the LAAC Procedure (≃ 60 minutes )
number of device implantation attempt during the procedure (number)
During the LAAC Procedure (≃ 60 minutes )
Feasibility Endpoint - number of device change during the procedure (number)
Time Frame: During the LAAC Procedure (≃ 60 minutes )
number of device change during the procedure (number)
During the LAAC Procedure (≃ 60 minutes )
Net Clinical Benefit Endpoint
Time Frame: 1 to 5 years
Composite of death, stroke, systemic embolism, pulmonary embolism, myocardial infarction, and major or life-threatening bleeding (according to the Bleeding academic research Criteria (BARC) type 3a, 3b, 3c, or 5) not procedure-related.
1 to 5 years
LAA patency
Time Frame: 45 days to 13 months
LAA patency and its subtypes as evaluated by TEE and/or CCTA
45 days to 13 months
Device related thrombus
Time Frame: 45 days to 13months
Device related thrombus detected by TEE and /or CCTA on the atrial surface of device
45 days to 13months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of atrial surface of device covered
Time Frame: 45 days - 3 months - 13months
% (device sealing surrogate)
45 days - 3 months - 13months
Maximal Hypoattentuated Thickening on atrial surface of device
Time Frame: 45 days - 3 months - 13months
mm (device sealing surrogate)
45 days - 3 months - 13months
Percentage of device length coverage
Time Frame: 45 days - 3 months - 13months
% (device sealing surrogate)
45 days - 3 months - 13months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University Hospital Inselspital, Berne

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Lorenz Räber, Prof., Insel Gruppe AG, Inselspital, Universitätsklinik für Kardiologie

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 12, 2015

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2023

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 5, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 12, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 13, 2020

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 22, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 21, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2016-01742

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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