Trial of the F2 Filter and Delivery System for Embolic Protection During TAVR (SHIELD)

EnCompass Technologies

Status: Not yet enrolling

Conditions: Aortic Stenosis Treated With TAVI; Aortic Diseases

Treatments: Procedure: Transcatheter Aortic Valve Replacement (TAVR); Device: F2 Filter and Delivery System

Study type: Interventional

Funder types: Industry; Other

Identifiers

NCT06689839

ET03

Details and patient eligibility

About

The objective of this study is to compare the safety and effectiveness of the F2 Cerebral Protection System (CPS) to a standard of care control group in patients undergoing Transcatheter Aortic Valve Replacement (TF TAVR)

Full description

The study is designed to demonstrate that the F2 Cerebral Protection System (CPS) performs in a consistent manner as the control group in terms of safety, and the F2 Cerebral Protection System (CPS) will be superior in performance when compared to the control group in terms of effectiveness in patients undergoing Transcatheter Aortic Valve Replacement (TF TAVR).

Enrollment: 500 estimated patients

Sex: All

Ages: 50+ years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria:

• Age ≥ 50 years.
• Patient meets the established criteria and indications for commercially available TAVR via transfemoral access and is scheduled to undergo TAVR per their treating physician.
• Patient is willing and able to comply with protocol-specified follow-up evaluations.
• Patient is able and willing to provide written informed consent.
• Patient meets all criteria for use of control device (Sentinel device, per IFU).

Key Exclusion Criteria:

General Exclusion Criteria:

• Patient requires an urgent or emergent TAVR procedure.
• Any interventional cardiovascular procedure performed within 30 days prior to TAVR procedure or planned within 30 days post-TAVR procedure.
• Diagnostic cardiac catheterization within 10 days prior to TAVR procedure.
• Evidence of an acute myocardial infarction within 3 months prior to TAVR procedure.
• Prior prosthetic heart valve in any position.
• Known intracardiac thrombus.
• Active infection or endocarditis.
• Patient is contraindicated for anti-platelet and/or anticoagulant therapy.
• Patient refuses blood transfusion.
• Renal insufficiency (creatinine > 2.5 mg/dL or GFR < 30) and/or renal replacement therapy at the time of screening.
• Patients with hepatic failure (Child-Pugh class C).
• Severe ventricular dysfunction with left ventricular ejection fraction (LVEF) < 30%.
• Females who are pregnant or nursing or plan to become pregnant during their participation in the study.

Neurological Exclusion Criteria:

• Modified Rankin Scale (mRS) ≥ 2 at screening.
• Cerebrovascular event including TIA within 6 months of the procedure.
• Patient has active major psychiatric disease, known mental or physical illness or known history of substance abuse that may cause non-compliance with the protocol or confound the data interpretation.
• Patient has severe visual, auditory, or learning impairment.
• Patient has neurodegenerative or other progressive neurological disease or history of significant head trauma followed by persistent neurologic defaults or known structural brain abnormalities.

Magnetic Resonance Imaging Exclusion Criteria:

• Contraindications to MRI (participants with MR unsafe implants including implantable temporary or permanent pacemaker or defibrillator, metal implants in field of view, metallic fragments, clips, or devices in the brain or eye before TAVR procedure).
• High risk of complete AV block after TAVR, with the need of permanent pacemaker.
• Claustrophobia precluding MRI scanning.

Anatomical and CT Exclusion Criteria:

• Severe peripheral arterial, abdominal aortic, or thoracic aortic disease that precludes delivery sheath, vascular access or filter deployment.
• Presence of cardiovascular implant in aorta and/or peripheral access vessels.
• Access vessels with excessive tortuosity.
• Aortic arch, which is heavily calcified, severely atheromatous, or severely tortuous.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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500 participants in 2 patient groups

F2 Filter and Delivery System

Experimental group

Description:

The F2 Cerebral Embolic Protection System will be used during your Transcatheter Aortic Valve Replacement procedure

Treatment:

Device: F2 Filter and Delivery System

Procedure: Transcatheter Aortic Valve Replacement (TAVR)

Either the Sentinel Cerebral Protection System or no embolic protection device

Active Comparator group

Description:

Either the Sentinel Cerebral Protection System or no embolic protection device will be used during your Transcatheter Aortic Valve Replacement procedure depending on the Standard of Care at the treating institution

Treatment:

Procedure: Transcatheter Aortic Valve Replacement (TAVR)