About this trial
Active surveillance study using real-world data collected in the ASSURE Patient Registry. Outcome measures are based on analysis of ASSURE Registry data including data recorded by the WCD then annotated by clinical experts in electrophysiology.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adult patient prescribed the ASSURE wearable cardioverter defibrillator
Provided written informed consent to participate in the ASSURE Patient Registry
Disqualifiers
Patients who do not meet the Inclusion criteria
Trial population
The ASSURE Wearable Cardioverter Defibrillator (WCD) system is indicated for adult patients who are at risk or at perceived risk of sudden cardiac arrest (SCA) and are not immediate candidates for, or refuse, an implantable defibrillator.
Trial design
Cohort
Prospective
Treatments tested in this trial
Defibrillation
DeviceExternal defibrillation from a wearable cardioverter defibrillator
Treatment groups
Trial outcomes
Primary outcomes
Overall shock conversion rate
Percent of spontaneous episodes of ventricular tachycardia/ventricular fibrillation (VT/VF) successfully converted with one or more shocks ≥ 89.0%
Inappropriate shocks per patient month
Total inappropriate shocks/cumulative months of WCD use for all patients ≤ 0.0075
Secondary outcomes
First shock conversion rate
Percent of spontaneous episodes of ventricular tachycardia/ventricular fibrillation (VT/VF) converted with a single shock. (report only)
Inappropriate shock rate
Percent of patients who experience at least one inappropriate shock (report only)
Other outcomes
Appropriate shock rate per month
Number of appropriate shocks/cumulative months of WCD use
Appropriate shock rate
Percent of patients who experience at least one appropriate shock
Total Shocks delivered
Number of shocks delivered
Shocks diverted
Number of shocks diverted by patients
Sponsors and contacts
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