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Completed

NCT Number: NCT04132466

ASSURE WCD Clinical Evaluation - Conversion Efficacy Study

A multicenter single arm open label evaluation of the ASSURE Wearable Cardioverter Defibrillator (WCD) defibrillation waveform in adult cardiac patients

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Alaska Cardiovascular Research Foundation, Inc., Anchorage, Alaska, United States

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About this study

The objective of this study is to evaluate Ventricular Tachycardia/Ventricular Fibrillation (VT/VF) conversion efficacy in adult human subjects using the ASSURE Wearable Cardioverter Defibrillator (WCD) defibrillation waveform.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males or females, age ≥ 18 years
  • Able and willing to provide written informed consent before undergoing any study-related procedures
  • Scheduled for any of the following procedures:
  • Electrophysiology study for induction of ventricular arrhythmias
  • Non-invasive electrophysiology testing using an existing implantable defibrillator
  • Implantable cardioverter-defibrillator (ICD) replacement procedure during which induction of a ventricular arrhythmia is planned
  • Ablation of ventricular tachycardia (patients undergoing ventricular tachycardia ablation in which only a substrate modification approach is planned, with no intention of inducing a ventricular arrhythmia, should not be included)

Exclusion criteria

  • Any condition that by the judgement of the physician investigator precludes the subject's ability to comply with the study requirements
  • Pregnancy
  • Use of mechanical circulatory support (e.g. Left Ventricular Assist Device, Total Artificial Heart, intraaortic balloon pump or Impella)
  • Documented nonchronic cardiac thrombus
  • Atrial fibrillation or atrial flutter without therapeutic systemic anticoagulation
  • Critical aortic stenosis
  • Unstable coronary artery disease (CAD)
  • Recent stroke or transient ischemic attack (TIA)
  • Hemodynamic instability
  • Currently implanted Boston Scientific S-ICD (due to location of implant relative to test system)
  • Unstable angina
  • New York Heart Association (NYHA) Class IV
  • Left Ventricular Ejection Fraction (LVEF) < 20%
  • Any medical condition that by the judgement of the physician investigator, patient participation in this study is not in the best interest of the patient
  • History of difficulty of ventricular arrhythmia induction
  • Amiodarone use within 3 months before the study procedure

Treatment and study plan

Defibrillation using the ASSURE wearable cardioverter defibrillator therapy delivered via a waveform delivery test system

Device

defibrillation using a 170 joule biphasic truncated exponential waveform designed for the ASSURE wearable cardioverter defibrillator

Primary outcomes

  1. Cumulative First and Second Shock VT/VF Conversion Rate

    Time frame: Through study procedure completion, average of 2 hours

    The number of subjects with successful (first or second shock) arrhythmia conversion using the Test System divided by the total number of inductions attempted using the Test System

    A successful arrhythmia conversion is defined as termination of an induced ventricular rhythm by first or second shock from the Test System to a non-shockable rhythm (rhythms other than VT or VF).

Secondary outcomes

  1. First Shock VT/VF Conversion Rate

    Time frame: Through study procedure completion, average of 2 hours

    The number of subjects with successful (first shock) arrhythmia conversion using the Test System divided by the total number of inductions attempted with using the Test System

    A successful arrhythmia conversion is defined as termination of an induced ventricular rhythm by first shock from the Test System to a non-shockable rhythm (rhythms other than VT or VF).

Sponsors and collaborators

Lead sponsor

Kestra Medical Technologies, Inc.

Industry

Collaborators

  • Regulatory and Clinical Research Institute Inc

Registry information

Official study title

ASSURE WCD Clinical Evaluation - Conversion Efficacy Study (ACE-CONVERT)

Acronym: ACE-CONVERT

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Oct 18, 2019
Registry last updated
Apr 5, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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