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Balloon vs. Self Expanding Transcatheter Valve for Degenerated Bioprosthesis

Not Applicable
Recruiting
Conditions
Valve Heart Disease
Interventions
Device: Evolut R/PRO bioprosthesis
Device: Edwards Sapien S3/Ultra bioprosthesis
Registration Number
NCT04843072
Lead Sponsor
Erasmus Medical Center
Brief Summary

Transcatheter aortic valve implantation (TAVI) serves a growing spectrum of patients with symptomatic severe aortic stenosis (AS). Approximately 80% of surgical aortic valve replacements is performed using a bioprosthesis1. Durability of surgical bioprostheses varies based on the patient's age at the moment of implantation, type and size etc2. TAVI has become the preferred treatment for degenerated aortic bioprostheses in elderly patients3. The median time since index surgical aortic valve replacement (SAVR) and for bioprosthetic valve degeneration is typically 8 - 10 years4-6. TAVI in this setting has proven to have equally favorable results as in native aortic valves7. Balloon expandable8 and self-expanding9 transcatheter heart valves (THV) can be used in a degenerated bioprosthesis and each have specific assets and limitations. TAVI in a failed bioprosthesis can cause coronary obstruction, THV migration, paravalvular leakage and prosthesis patient mismatch. The SAPIEN-3 / Ultra and EVOLUT R/Pro are the 2 most commonly used THV platforms in contemporary clinical practice including treatment of failing surgical aortic bioprostheses.

Objective: To compare TAVI with EVOLUT R/Pro vs. SAPIEN-3 / Ultra in terms of device success.

Study design: International multi-center randomized study with 1:1 randomization to TAVI with SAPIEN-3 / Ultra or Evolut R/Pro.

Study population: 440 patients with a failing surgical aortic bioprosthesis (aortic stenosis with or without aortic regurgitation) and selected for transfemoral TAVI by heart-team consensus.

Investigational intervention: Transfemoral TAVI with SAPIEN-3 / Ultra or Evolut R/PRO

Main study parameters/endpoints:

1. Primary endpoint is device success at 30 days

Defined by

* Absence of procedural mortality AND

* Correct positioning of a single prosthetic heart valve into the proper anatomical location AND

* Intended performance of the prosthetic heart valve (no severe prosthesis- patient mismatch and mean aortic valve gradient \< 20 mmHg or peak velocity \< 3 m/s, AND no moderate or severe prosthetic valve regurgitation). Severe prosthesis patient mismatch is defined by effective orifice area (EOAi) ≤0.65 cm2/m2

2. Safety endpoint at 1 year defined by the composite of all-cause death, disabling stroke, rehospitalization for heart failure or valve related problems.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
400
Inclusion Criteria
  • Age ≥ 65 years
  • Failing surgical aortic bioprosthesis requiring valve replacement and eligible for transfemoral TAVI with balloon expandable or self-expanding platform per heart team consensus based on multi-modality imaging assessment (including echocardiography and multidetector CT).
  • Written informed consent
Exclusion Criteria
  • Not eligible for Transfemoral TAVI with SAPIEN-3 / Ultra and Evolut R/Pro
  • Multi-valve defects requiring intervention
  • Clinically unstable and/or inotropic/vasopressor /mechanical support.
  • Known mural thrombus in the left ventricle
  • Presence of a mechanical aortic valve
  • History of recent (within 1 month) stroke or TIA

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Evolut R/Pro bioprosthesisEvolut R/PRO bioprosthesisStudy subjects will receive a self-expanding-valve (either the Evolut R or PRO device)
Edwards Sapien S3/Ultra bioprosthesisEdwards Sapien S3/Ultra bioprosthesisStudy subjects will receive a balloon-expanding-valve (either the Edwards Sapien S3 or Ultra)
Primary Outcome Measures
NameTimeMethod
Device success30 days post transcatheter valve implantation

Device success, definition modified from VARC-2 criteria:

* Absence of procedural mortality AND

* Correct positioning of a single prosthetic heart valve into the proper anatomical location AND

* Intended performance of the prosthetic heart valve (no severe prosthesis- patient mismatch and mean aortic valve gradient \< 20 mmHg or peak velocity \< 3 m/s, AND no moderate or severe prosthetic valve regurgitation). Severe prosthesis patient mismatch is defined by effective orifice area (EOAi) ≤0.65 cm2/m2

Secondary Outcome Measures
NameTimeMethod
Composite of all-cause death, disabling stroke, rehospitalization for heart failure or valve related problems1 year post transcatheter valve implantation

Safety endpoint

Trial Locations

Locations (14)

Erasmus Medical Centre

🇳🇱

Rotterdam, Netherlands

University Hospital Mainz

🇩🇪

Mainz, Germany

Cedars Sinai

🇺🇸

Los Angeles, California, United States

Leeds Teaching Hospitals

🇬🇧

Leeds, United Kingdom

Vienna General Hospital

🇦🇹

Vienna, Austria

Rigshospitalet

🇩🇰

Copenhagen, Denmark

St Paul's and Vancouver General Hospital

🇨🇦

Vancouver, Canada

Institut Cœur Poumon

🇫🇷

Lille, France

University Hospital of Padova

🇮🇹

Padua, Italy

Centro Hospitalar de Lisboa Ocidental

🇵🇹

Lisbon, Portugal

Inselspital, University Hospital

🇨🇭

Bern, Switzerland

Interventional Cardiology Unit, Cardiovascular Department, Fondazione Poliambulanza Institute, Brescia, Italy

🇮🇹

Brescia, Italy

Department of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece

🇬🇷

Athen, Greece

Division of Cardiology, Pulmonology, and Vascular Medicine, Heinrich Heine University Medical Center Dusseldorf, Dusseldorf, Germany

🇩🇪

Düsseldorf, Germany

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