ALLIANCE: Safety and Effectiveness of the SAPIEN X4 Transcatheter Heart Valve

Purpose

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

Condition

  • Aortic Stenosis, Severe

Eligibility

Eligible Ages
All ages
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. Severe, calcific AS 2. Native aortic annulus size suitable for SAPIEN X4 THV 3. NYHA functional class ≥ II 4. The subject has been informed of the nature of the study, agrees to its provisions and has provided written informed consent.

Exclusion Criteria

  1. Anatomical characteristics that would preclude safe femoral placement of the introducer sheath or safe passage of the delivery system 2. Aortic valve is unicuspid, bicuspid or non-calcified 3. Pre-existing mechanical or bioprosthetic valve in any position 4. Severe aortic regurgitation (> 3+) 5. Severe mitral regurgitation (> 3+) or ≥ moderate mitral stenosis 6. Need for mitral, tricuspid or pulmonic valve intervention within the next 12 months 7. Left ventricular ejection fraction < 20% 8. Cardiac imaging evidence of intracardiac mass, thrombus or vegetation 9. Left ventricular outflow tract calcification that would increase the risk of annular rupture or significant PVL after THV implantation 10. Increased risk of coronary artery obstruction after THV implantation 11. Myocardial infarction within 30 days prior to the study procedure 12. Hypertrophic cardiomyopathy with subvalvular obstruction 13. Subjects with planned concomitant ablation for atrial fibrillation 14. Complex coronary artery disease (CAD) that cannot be optimally treated by percutaneous coronary intervention (PCI) 15. 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. 16. 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) 17. Endocarditis within 180 days prior to the study procedure 18. Stroke, transient ischemic attack or neurological signs and symptoms attributed to carotid or vertebrobasilar disease within 90 days prior to the study procedure 19. Hemodynamic or respiratory instability requiring inotropic or mechanical support within 30 days prior to the study procedure 20. Renal insufficiency and/or renal replacement therapy 21. Leukopenia, anemia, thrombocytopenia 22. Inability to tolerate or condition precluding treatment with antithrombotic therapy 23. Hypercoagulable state or other condition that increases risk of thrombosis 24. Absolute contraindications or allergy to iodinated contrast that cannot be adequately treated with premedication 25. Subject refuses blood products 26. BMI > 50 kg/m2 27. Estimated life expectancy < 24 months 28. Female who is pregnant or lactating 29. Active SARS-CoV-2 infection or previously diagnosed with COVID-19 with sequelae that could confound endpoint assessments 30. Participating in another investigational drug or device study that has not reached its primary endpoint 31. Subject considered to be part of a vulnerable population

Study Design

Phase
N/A
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Single Group Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
TAVR - Main Cohort 		Subjects will undergo transcatheter aortic valve replacement (TAVR)
  • Device: SAPIEN X4 THV
    Implantation of the SAPIEN X4 valve
Experimental
TAVR - Bicuspid Registry 		Subjects with bicuspid aortic valve morphology will undergo TAVR
  • Device: SAPIEN X4 THV
    Implantation of the SAPIEN X4 valve

Recruiting Locations

University of Kansas Medical Center
Kansas City, Kansas 66160

More Details

Status
Recruiting
Sponsor
Edwards Lifesciences

Study Contact

Edwards THV Clinical Affairs
949-250-2500
THV_CT.gov@Edwards.com

Detailed Description

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