NCT03503253

Brief Summary

Although the clinical impact of left atrial appendage (LAA) leaks still requires confirmation, the open pouch with residual flow resulting from incomplete LAA closure may promote blood stagnation and thrombus formation, and increase the risk of thromboembolic events. The main purpose of this trial is to evaluate the safety and efficacy of percutaneous leak closure with detachable vascular coils.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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 Start

First participant enrolled

April 9, 2018

Completed
2 days until next milestone

First Submitted

Initial submission to the registry

April 11, 2018

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 19, 2018

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2021

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2022

Completed
Last Updated

April 6, 2021

Status Verified

April 1, 2021

Enrollment Period

3.1 years

First QC Date

April 11, 2018

Last Update Submit

April 3, 2021

Conditions

Outcome Measures

Primary Outcomes (3)

  • Procedural success

    Procedural success, defined as successful delivery, deployment release of detachable coil(s) into the LAA, and incidence of LAA occlusion as measured by fluoroscopy and echocardiographic color Doppler jets less than 3mm by TEE at the end of the procedure.

    7 days

  • Rate of LAA leak closure

    LAA occlusion will be assessed by TEE color Doppler and will be defined as absence of flow in the LAA or minimal color Doppler jets (\< 1mm).

    60 days

  • Incidence of Major Adverse Events (MAE)

    Rate of procedure- and device-related complications (device embolization; cardiac injury, re-intervention, and/or device-related surgery; bleeding events such as pericardial effusion requiring drainage, cranial bleeding due to any source, gastrointestinal bleeding; transient ischemic attack/stroke; systemic embolism; death; or any other event related to the device or the procedure, which requires treatment).

    30 days

Secondary Outcomes (1)

  • Composite of all-cause mortality, stroke and bleeding

    12 months

Study Arms (1)

Single-arm

OTHER

LAA leak closure using detachable coils; Interlock-35 Fibered IDC Occlusion System, Concerto Helix Detachable Coil System

Device: Interlock-35 Fibered IDC Occlusion SystemDevice: Concerto Helix Detachable Coil SystemDevice: Azur Peripheral Coil System

Interventions

Use of detachable coil for LAA leak closure

Single-arm

Use of detachable coil for LAA leak closure

Single-arm

Use of detachable coil for LAA leak closure

Single-arm

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age\> 18 years.
  • Less moderate embolic risk (CHA2DS2-VASc ≥2)
  • written informed consent obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study

You may not qualify if:

  • Life expectancy \< 2 years.
  • pregnant, breastfeeding, or unwilling to practice birth control during participation in the study
  • presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Texas Cardiac Arrhythmia Institute

Austin, Texas, 78705, United States

RECRUITING

Related Publications (1)

  • Della Rocca DG, Horton RP, Di Biase L, Bassiouny M, Al-Ahmad A, Mohanty S, Gasperetti A, Natale VN, Trivedi C, Gianni C, Burkhardt JD, Gallinghouse GJ, Hranitzky P, Sanchez JE, Natale A. First Experience of Transcatheter Leak Occlusion With Detachable Coils Following Left Atrial Appendage Closure. JACC Cardiovasc Interv. 2020 Feb 10;13(3):306-319. doi: 10.1016/j.jcin.2019.10.022. Epub 2020 Jan 15.

Study Officials

  • Andrea Natale

    Texas Cardiac Arrhythmia Research Foundation

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Prospective, single arm study with consecutive, eligible subject enrollment. All subjects will undergo percutaneous LAA leak closure procedure with detachable coils.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Executive Medical Director

Study Record Dates

First Submitted

April 11, 2018

First Posted

April 19, 2018

Study Start

April 9, 2018

Primary Completion

May 1, 2021

Study Completion

May 1, 2022

Last Updated

April 6, 2021

Record last verified: 2021-04

Locations