NCT03887052

Brief Summary

A prospective multicenter single arm open label study to evaluate ambulatory detection performance, arrhythmia detection and safety of the ASSURE™ Wearable Cardioverter Defibrillator (WCD).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
130

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2019

Shorter than P25 for not_applicable

Geographic Reach
1 country

10 active sites

Status
completed

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

First Submitted

Initial submission to the registry

March 19, 2019

Completed
1 day until next milestone

Study Start

First participant enrolled

March 20, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 22, 2019

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 18, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 18, 2019

Completed
4.4 years until next milestone

Results Posted

Study results publicly available

October 26, 2023

Completed
Last Updated

March 12, 2024

Status Verified

March 1, 2024

Enrollment Period

3 months

First QC Date

March 19, 2019

Results QC Date

March 25, 2022

Last Update Submit

March 7, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • WCD False Positive Alarm Rate

    False Shock Alarms per patient day

    30 days

Secondary Outcomes (2)

  • WCD True Positive Detections

    30 days

  • WCD Missed Events

    30 days

Study Arms (1)

Study Arm

EXPERIMENTAL

Adult cardiac patients at risk for sudden cardiac arrest otherwise protected with an Implantable Cardioverter Defibrillator (ICD)

Device: ASSURE™ Wearable Cardioverter Defibrillator (WCD)

Interventions

WCD with shock alarms and shock functionality disabled

Study Arm

Eligibility Criteria

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

You may qualify if:

  • Males or females, age ≥ 18 years
  • Patients with an active Implantable Cardioverter Defibrillator (ICD)
  • Left Ventricular Ejection Fraction (LVEF) ≤ 40%, measured within the past year (12 months) by echocardiography, nuclear imaging (including MRI), or left ventricular angiography
  • Able and willing to provide written informed consent before undergoing any study-related procedures

You may not qualify if:

  • Any condition that by the judgement of the physician investigator precludes the subject's ability to comply with the study requirements, including cognitive and/or physical limitations that would prevent the subject from interacting with the device as intended
  • Any known skin allergy or sensitivity to the study garment materials that will be next to the skin
  • Any breached or compromised skin on the upper body that would be exacerbated by wearing the study garment
  • Work with or are frequently around equipment that produces high electromagnetic fields, for example magnetic resonance imaging devices, power supply facilities, or welding equipment
  • Any planned surgical or medical procedures during the participation period that would require the subject to remove the study device for more than 12 hours
  • Any planned air travel during the participation period
  • Pregnancy
  • Use of mechanical circulatory support, including but not limited to Left Ventricular Assist Device (LVAD) or Total Artificial Heart
  • Implanted Cardiac Resynchronization Therapy Defibrillator (CRT-D)
  • Simultaneous plan/prescription for Holter monitor, mobile cardiac outpatient telemetry (MCOT), Event Recorder, or in-hospital telemetry
  • Use of any electronic medical device that is worn on or near the body requires Sponsor approval, other than continuous positive airway pressure (CPAP), continuous blood glucose monitor, or pulse oximeter oxygen saturation (SpO2) monitor.
  • Under bust chest circumference greater than 52 inches or less than 28 inches
  • Current hospital inpatient

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

Alaska Cardiovascular Research Foundation

Anchorage, Alaska, 99508, United States

Location

Heart Clinic of Hammond, LA

Hammond, Louisiana, 70403, United States

Location

Washington Adventist Hospital

Takoma Park, Maryland, 20912, United States

Location

University of Michigan

Ann Arbor, Michigan, 48109, United States

Location

Mayo Clinic

Rochester, Minnesota, 55905, United States

Location

Washington University St Louis

St Louis, Missouri, 63110, United States

Location

Cooper University Health Care

Camden, New Jersey, 08103, United States

Location

Toledo ProMedica Hospital

Toledo, Ohio, 43615, United States

Location

University of Washington Medical Center

Seattle, Washington, 98195, United States

Location

Institute for Research and Innovation MultiCare Health System

Tacoma, Washington, 98405, United States

Location

Related Publications (1)

  • Poole JE, Gleva MJ, Birgersdotter-Green U, Branch KRH, Doshi RN, Salam T, Crawford TC, Willcox ME, Sridhar AM, Mikdadi G, Beinart SC, Cha YM, Russo AM, Rowbotham RK, Sullivan J, Gustavson LM, Kivilaid K. A wearable cardioverter defibrillator with a low false alarm rate. J Cardiovasc Electrophysiol. 2022 May;33(5):831-842. doi: 10.1111/jce.15417. Epub 2022 Feb 28.

MeSH Terms

Conditions

Death, Sudden, Cardiac

Condition Hierarchy (Ancestors)

Heart ArrestHeart DiseasesCardiovascular DiseasesDeath, SuddenDeathPathologic ProcessesPathological Conditions, Signs and Symptoms

Limitations and Caveats

The primary purpose of this study was to assess the false positive shock alarm rate; however, our results may not translate to the results of a larger study with longer wear time. Because auditory/vibratory alarms and shocks were disabled in this study, reported wear compliance may not reflect clinical use when this functionality is enabled. Further prospective large studies will enable assessment of overall WCD performance and patient compliance.

Results Point of Contact

Title
Laura Gustavson, VP Clinical Marketing
Organization
Kestra Medical Technologies, Inc.

Study Officials

  • Jeanne E. Poole, MD

    University of Washington Medical Center, Seattle

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Model Details: Multicenter single arm open label evaluation
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 19, 2019

First Posted

March 22, 2019

Study Start

March 20, 2019

Primary Completion

June 18, 2019

Study Completion

June 18, 2019

Last Updated

March 12, 2024

Results First Posted

October 26, 2023

Record last verified: 2024-03

Data Sharing

IPD Sharing
Will not share

Locations