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Clinical Trials/NCT05172960
NCT05172960RecruitingNot Applicable

Safety and Effectiveness of Balloon-Expandable Bioprosthetic SAPIEN X4 Transcatheter Heart Valve

Edwards Lifesciences70 sites in 4 countries1,234 target enrollmentStarted: June 20, 2022Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Not Applicable
Status
Recruiting
Sponsor
Enrollment
1,234
Locations
70
Primary Endpoint
Non-hierarchical composite of death and stroke

Study Overview

Brief Summary

The objective of this study is to establish the safety and effectiveness of the Edwards SAPIEN X4/X4S Transcatheter Heart Valve (THV) in subjects with symptomatic, severe, calcific aortic stenosis (AS).

Detailed Description

This is a prospective, single arm, multicenter study. Subjects with bicuspid aortic valve morphology will be enrolled in a separate registry.

Study Design

Study Type
Interventional
Allocation
Non Randomized
Intervention Model
Single Group
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •Severe, calcific AS
  • •Native aortic annulus size suitable for SAPIEN X4 THV
  • •NYHA functional class ≥ II
  • •The subject has been informed of the nature of the study, agrees to its provisions and has provided written informed consent.

Exclusion Criteria

  • •Anatomical characteristics that would preclude safe femoral placement of the introducer sheath or safe passage of the delivery system
  • •Aortic valve is unicuspid, bicuspid or non-calcified
  • •Pre-existing mechanical or bioprosthetic valve in any position
  • •Severe aortic regurgitation (> 3+)
  • •Severe mitral regurgitation (> 3+) or ≥ moderate mitral stenosis
  • •Need for mitral, tricuspid or pulmonic valve intervention within the next 12 months
  • •Left ventricular ejection fraction < 20%
  • •Cardiac imaging evidence of intracardiac mass, thrombus or vegetation
  • •Left ventricular outflow tract calcification that would increase the risk of annular rupture or significant PVL after THV implantation
  • •Increased risk of coronary artery obstruction after THV implantation
  • •Myocardial infarction within 30 days prior to the study procedure
  • •Hypertrophic cardiomyopathy with subvalvular obstruction
  • •Subjects with planned concomitant ablation for atrial fibrillation
  • •Complex coronary artery disease (CAD) that cannot be optimally treated by percutaneous coronary intervention (PCI)
  • •Any surgical or transcatheter procedure within 30 days prior to the study procedure (unless part of planned strategy for treatment of CAD). Implantation of a permanent pacemaker or implantable cardioverter defibrillator (ICD) is not considered an exclusion.
  • •Any planned surgical or transcatheter intervention to be performed within 30 days following the study procedure (unless part of planned strategy for treatment of CAD)
  • •Endocarditis within 180 days prior to the study procedure
  • •Stroke, transient ischemic attack or neurological signs and symptoms attributed to carotid or vertebrobasilar disease within 90 days prior to the study procedure
  • •Hemodynamic or respiratory instability requiring inotropic or mechanical support within 30 days prior to the study procedure
  • •Renal insufficiency and/or renal replacement therapy
  • •Leukopenia, anemia, thrombocytopenia
  • •Inability to tolerate or condition precluding treatment with antithrombotic therapy
  • •Hypercoagulable state or other condition that increases risk of thrombosis
  • •Absolute contraindications or allergy to iodinated contrast that cannot be adequately treated with premedication
  • •Subject refuses blood products
  • •BMI > 50 kg/m2
  • •Estimated life expectancy < 24 months
  • •Female who is pregnant or lactating
  • •Active SARS-CoV-2 infection or previously diagnosed with COVID-19 with sequelae that could confound endpoint assessments
  • •Participating in another investigational drug or device study that has not reached its primary endpoint
  • •Subject considered to be part of a vulnerable population

Arms & Interventions

TAVR - Bicuspid Registry

Experimental

Subjects with bicuspid aortic valve morphology will undergo TAVR

Intervention: SAPIEN X4 THV (Device)

TAVR - Main Cohort

Experimental

Subjects will undergo transcatheter aortic valve replacement (TAVR)

Intervention: SAPIEN X4 THV (Device)

TAVR - X4S Registry

Experimental

Subjects will undergo transcatheter aortic valve replacement (TAVR)

Intervention: SAPIEN X4S (Device)

Outcomes

Primary Outcomes

Non-hierarchical composite of death and stroke

Time Frame: 1 year

The number of patients that died or had a stroke

Secondary Outcomes

  • New permanent pacemaker implantation(30 days)
  • Favorable outcome per VARC-3: Composite of 1) alive, 2) Kansas City Cardiomyopathy Questionnaire (KCCQ) score ≥ 60, and 3) KCCQ score decrease ≤10 points from baseline(1 year)
  • Paravalvular leak(30 days)

Investigators

Sponsor
Edwards Lifesciences
Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (70)

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