About this trial
The objective of this study is to demonstrate safety and efficacy of the EmStop Embolic Protection System when used as indicated to capture and remove thrombus/debris during self-expanding transcatheter aortic valve replacement (TAVR) procedures.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Meets FDA-approved indications for elective transfemoral self-expanding transcatheter aortic valve replacement (TAVR) procedure on a native or non-native (valve-in-valve) aortic valve. Note: Due to Neurologist availability and importance of capturing the neurological assessments, procedures must be performed Monday-Thursday.
Left ventricular ejection fraction ≥ 30% as confirmed by echocardiogram
Willing and able to provide written informed consent and written HIPAA authorization prior to initiation of study procedures
Willing and able to comply with the protocol-specified procedures and assessments
Disqualifiers
Requires use of a balloon-expandable transcatheter aortic valve for the index procedure
Documented history of stroke or transient ischemic attack (TIA) within the prior 6 months, or any prior stroke with a permanent major disability or deficit (National Institute of Health Stroke Scale [NIHSS] >1 at baseline)
Left ventricular ejection fraction <30%, cardiogenic shock, or hypotension requiring inotropes or mechanical circulatory support, within 3 months prior to index procedure
Acute myocardial infarction (MI) within 30 days of the planned index procedure
Trial design
Parallel
Treatments tested in this trial
EmStop Embolic Protection System
DeviceEmStop Embolic Protection System used during TAVR procedure
Boston Scientific Sentinel
DeviceSentinel device used during TAVR procedure
Treatment groups
Trial outcomes
Primary outcomes
Non-Inferiority
Primary combined safety and efficacy endpoint is the rate of major adverse cardiac and cerebrovascular events (MACCE) at 30-days
Secondary outcomes
Non-Inferiority
Hypothesis-driven secondary efficacy endpoint is the composite rate through 30-days post-procedure of NeuroARC defined ischemic embolic stroke, VARC-3 defined AKI, and systemic embolization
Debris Capture
Hypothesis-driven secondary efficacy endpoint is the total debris capture, defined as the number of captured particles of at least ≥ 150micron
Sponsors and contacts
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EmStop Inc
Lead sponsor
Bright Research Partners
Collaborator