NCT05997446

Brief Summary

This is a prospective, multicenter, observational study intended to characterize real-world outcomes on the commercially available Amulet device in the United States. Over 600 subjects have been enrolled at 16 US clinical sites. Subjects will be followed through 24 months in accordance with each site's standard care practices.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
610

participants targeted

Target at P75+ for all trials

Timeline
13mo left

Started Jul 2023

Longer than P75 for all trials

Geographic Reach
1 country

16 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress73%
Jul 2023Jun 2027

Study Start

First participant enrolled

July 12, 2023

Completed
6 days until next milestone

First Submitted

Initial submission to the registry

July 18, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

August 18, 2023

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

October 1, 2025

Status Verified

September 1, 2025

Enrollment Period

3.9 years

First QC Date

July 18, 2023

Last Update Submit

September 26, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Composite endpoint: Death or complications

    Composite of all-cause death, ischemic stroke, systemic embolism, or device/procedure related complications requiring an invasive surgical or percutaneous intervention within 7 days of implant or hospital discharge, whichever is later

    Within 7 days of implant or hospital discharge, whichever is later

  • Device closure, defined as residual jet around the device ≤ 3mm

    Device closure (defined as residual jet around the device ≤ 3mm) at the first follow-up visit documented by trans-esophageal echocardiography (TEE), as assessed by an independent core laboratory

    Assessed at first trans-esophageal echocardiogram (TEE) occurring between 30-240 days post-implant.

  • Composite endpoint: Ischemic stroke or systemic embolism

    Composite of ischemic stroke or systemic embolism through 24 months

    Through 24 months

Interventions

Implantation of an Amplatzer Amulet left atrial appendage occluder

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients with non-valvular atrial fibrillation who are at increased risk for ischemic stroke or systemic embolism.

You may qualify if:

  • Intended for LAAO with the Amulet device
  • At least 18 years of age
  • Willing and capable of providing informed consent and participating in all testing associated with this clinical study

You may not qualify if:

  • Presence of other conditions that, in the investigator's opinion, could limit the subject's ability to participate in follow-up

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (16)

Arizona Arrhythmia Research

Phoenix, Arizona, 85016, United States

Location

Arkansas Heart Hospital

Little Rock, Arkansas, 72211, United States

Location

Baptist Medical Center

Jacksonville, Florida, 32207, United States

Location

Usman R. Siddiqui, MD

Winter Park, Florida, 32792, United States

Location

PERC - O'Fallon

O'Fallon, Illinois, 62269, United States

Location

Kansas City Cardiac Arrhythmia Research Foundation

Overland Park, Kansas, 66211, United States

Location

Cardiovascular Research Institute of Kansas

Wichita, Kansas, 67226, United States

Location

Providence Hospital

Southfield, Michigan, 48075, United States

Location

Bryan Heart

Lincoln, Nebraska, 68506, United States

Location

CHI Health Creighton University Medical Center-Bergan Mercy

Omaha, Nebraska, 68124, United States

Location

New York University Hospital

New York, New York, 10016, United States

Location

Pinnacle Health System

Mechanicsburg, Pennsylvania, 17150, United States

Location

Trident Medical Center

Charleston, South Carolina, 29406, United States

Location

Vanderbilt Heart & Vascular Institute

Nashville, Tennessee, 37232, United States

Location

Baylor All Saints Medical Center at Fort Worth

Fort Worth, Texas, 76104, United States

Location

Heart Rhythm Associates

Shenandoah, Texas, 77380, United States

Location

MeSH Terms

Conditions

Atrial FibrillationStrokeHemorrhage

Interventions

Left Atrial Appendage Closure

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular Diseases

Intervention Hierarchy (Ancestors)

Cardiac CatheterizationCatheterizationTherapeuticsInvestigative Techniques

Study Officials

  • Dhanunjaya Lakkireddy, MD

    Kansas City Cardiac Arrhythmia Research Foundation

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 18, 2023

First Posted

August 18, 2023

Study Start

July 12, 2023

Primary Completion (Estimated)

June 1, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

October 1, 2025

Record last verified: 2025-09

Data Sharing

IPD Sharing
Will not share

Locations