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RecruitingAortic Valve InsufficiencyAortic Valve Stenosis

ALLIANCE AVIV: Safety and Effectiveness of the SAPIEN X4 Transcatheter Heart Valve in Failing Aortic Bioprosthetic Valves

Eligible age

All ages

Accepts

All genders

Locations

19 states

Healthy volunteers

No

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About this study

The objective of this study is to establish the safety and effectiveness of the Edwards SAPIEN X4/X4S Transcatheter Heart Valve (THV) in subjects who are at high or greater risk with a failing aortic bioprosthetic valve.

Sponsor: Edwards Lifesciences

You may qualify if…

  • 1. Failing aortic bioprosthetic valve demonstrating ≥ moderate stenosis and/or ≥ moderate insufficiency
  • 2. Bioprosthetic valve size suitable for SAPIEN X4 THV
  • 3. NYHA functional class ≥ II
  • 4. Heart Team agrees the subject is at high or greater surgical risk
  • 5. The subject has been informed of the nature of the study, agrees to its provisions and has provided written informed consent.

You may not qualify if…

  • 1. Anatomical characteristics that would preclude safe femoral placement of the introducer sheath or safe passage of the delivery system
  • 2. Failing valve has moderate or severe paravalvular regurgitation
  • 3. Failing valve is unstable, rocking, or not structurally intact
  • 4. Known severe patient-prosthesis mismatch or bioprosthetic valve with residual mean gradient \> 20 mmHg at the end of the index procedure for implantation of the original valve
  • 5. Increased risk of THV embolization
  • 6. Surgical or transcatheter valve in the mitral position
  • 7. Severe mitral regurgitation (\> 3+) or ≥ moderate mitral stenosis
  • 8. Need for mitral, tricuspid or pulmonic valve intervention within the next 12 months

Where it's recruiting

California

Newport Beach · San Francisco · Stanford

Colorado

Loveland

Florida

Naples

Georgia

Atlanta

Illinois

Evanston · Lisle

Kansas

Wichita

Maryland

Baltimore

Michigan

Detroit

Minnesota

Rochester

New Jersey

Morristown · New Brunswick · Ridgewood

New York

Buffalo · New York · Rochester

Source: ClinicalTrials.gov · NCT05172973 · last updated 2026-07-27

ALLIANCE AVIV: Safety and Effectiveness of the SAPIEN X4 Transcatheter · TrialPath