Can a new heart valve match the safety of proven ones?
NCT ID NCT04275726
First seen Aug 17, 2026 · Last updated Aug 18, 2026 · Updated 1 time
Summary
This trial tests whether a new transcatheter heart valve (Myval) works as safely and effectively as two existing valves (Sapien and Evolut) in people with severe aortic stenosis, a condition where the heart's main valve narrows. About 768 patients who are eligible for valve replacement will be randomly assigned to receive either the new valve or one of the existing ones. The study tracks major outcomes like death, stroke, bleeding, kidney injury, and valve function to see if the new valve is a viable alternative.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Myval transcatheter heart valve (THV) series
- What this could lead to
- If successful, this could offer patients with severe aortic stenosis another safe and effective valve option for minimally invasive replacement.
- What could go wrong
- The trial is non-inferiority, meaning it aims to show the new valve is not worse than existing ones, not necessarily better. Risks include complications like bleeding, stroke, or need for a pacemaker.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 988 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2020
- Expected to finish
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Dec 2033
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Patient ≥18 years of age. 2. Patient or their legal representative has provided written informed consent as approved by the Institutional Review Board (IRB)/Institutional Ethics Committee (IEC) of the investigational site to participate in the study. 3. As per local Heart Team assessment, patient is eligible for TAVI and the patient is suitable for implantation with all three study devices. Exclusion Criteria: 1. Patients who are not willing to provide informed consent form, or whose legal heirs object to their participation in the study. 2. Any condition, which in the Investigator's opinion, would preclude safe participation of patient in the study.
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Get notified about this study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
51 sites in 17 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Amphia Ziekenhui Hospital
RECRUITINGBreda, 4817, Netherlands
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Arnault Tzanck Institute
RECRUITINGNice, 06200, France
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Asklepios Kliniken Hamburg Gmbh Lohmuehlenstrasse 5
NOT_YET_RECRUITINGHamburg, 20099, Germany
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Auckland City Hospital 2 Park Road
RECRUITINGGrafton, Auckland, 1023, New Zealand
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Centre Hospitalier Universitaire De Rennes
NOT_YET_RECRUITINGRennes, 35033, France
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Centro Hospital Lisboa Central E.P.E. - Santa Marta
RECRUITINGLisbon, 1169-024, Portugal
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Centro Hospitalar Lisboa Ocidental EPE- Hospital Santa Cruz, Av. Prof. Dr. Reinaldo dos Santos
RECRUITINGCarnaxide, 2790-134, Portugal
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Centro Hospitalar de Sao Joao
NOT_YET_RECRUITINGPorto, 4200-319, Portugal
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Clinical Institute Saint Ambrogio
RECRUITINGMilan, 20149, Italy
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Hippkration Hospital
RECRUITINGAthens, 11527, Greece
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Hospital Cliinico Univertistario de Valladolid
RECRUITINGValladolid, 47003, Spain
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Hospital Clínico San Carlos
NOT_YET_RECRUITINGMadrid, 28040, Spain
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Hospital Dante Pazanesse
RECRUITINGSão Paulo, 04012-909, Brazil
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Hospital Universitari Son Espases Carretera de Valldemossa
RECRUITINGPalma de Mallorca, Balearic Islands, 07120, Spain
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Hospital Universitario Renei Sofia
RECRUITINGCórdoba, 5000, Spain
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Hospital Universitario de Gran Canaria Dr Negrin
RECRUITINGLas Palmas, Canary Islands, 35010, Spain
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Hospital de Santa Maria, Av. Prof. Egas Moniz MB
NOT_YET_RECRUITINGLisbon, 1649-028, Portugal
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Hygeia hospital
RECRUITINGMarousi, Greece
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Hôpital Henri Mondor
RECRUITINGCréteil, 94000, France
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Institut Cardiovascular Paris-Sud
RECRUITINGMassy, 91300, France
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Institute of Cardiology
NOT_YET_RECRUITINGWarsaw, 50-013, Poland
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Interbalkan European Medical Center
RECRUITINGThessaloniki, 555 35, Greece
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Isala Zwolle Hospital
ACTIVE_NOT_RECRUITINGZwolle, Overijssel, 8025 AB, Netherlands
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John Paul II Hospital
NOT_YET_RECRUITINGKrakow, Małopolskie Województwo, 31-202, Poland
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Kerckhoff-KlinikForschungs GmbH
RECRUITINGBad Nauheim, Hesse, 61231, Germany
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Klinik für Herz-, Thorax- und herznahe Gefäßchirurgie, Universitätsklinikum Regensburg
RECRUITINGRegensburg, 93053, Germany
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Klinikum Braunschweig Freisestre
ACTIVE_NOT_RECRUITINGBraunschweig, 38118, Germany
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Leipzig Heart Institute GmbH
RECRUITINGLeipzig, Saxony, 04289, Germany
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Lille University
RECRUITINGLille, 59000, France
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Mauriliano Hospital Largo Filippo
NOT_YET_RECRUITINGTortona, 10128, Italy
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Medical University of Silesia
NOT_YET_RECRUITINGKatowice, Prussian, 40-635, Poland
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North Estonia Medical Center
RECRUITINGTallinn, Estonia
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Onze lieve vrouwe gasthuis Oosterperk 9
ACTIVE_NOT_RECRUITINGAmsterdam, 1091, Netherlands
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Policlinico di Catania
NOT_YET_RECRUITINGCatania, 95100, Italy
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Radboud University Nijmegen
RECRUITINGNijmegen, Gelderland, 6525 XZ, Netherlands
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Republican Scientific-Practical Centre "Cardiology"
NOT_YET_RECRUITINGMinsk, 220036, Belarus
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Sahlgrenska University Hospital
RECRUITINGGothenburg, Sweden
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San Donato Hospital
RECRUITINGMilan, 20121-20162, Italy
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San Raffaele Hospital
RECRUITINGMilan, 20132, Italy
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Semmelweis University
RECRUITINGBudapest, 1122, Hungary
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Split Clinical Hospital Center
RECRUITINGSplit, 21000, Croatia
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St Antonius Hospital
RECRUITINGNieuwegein, Dutch, 3435, Netherlands
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Technology University Dresden Fetscherstraße 76
RECRUITINGDresden, 01307, Germany
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University Herzentrum Division of Cardiology and Angiology II,University Heart Center Freiburg, Südring 15
RECRUITINGBad Krozingen, 79189, Germany
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University Hospital Città della Salute e della Scienza Turin Bramante
NOT_YET_RECRUITINGTurin, 10126, Italy
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University Hospital Dubrava Avenija Gojka Šuška 6
RECRUITINGZagreb, 10000, Croatia
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University Medical Center (UMC)
NOT_YET_RECRUITINGGroningen, 9713, Netherlands
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University Medical Center Utrecht
RECRUITINGUtrecht, 3584, Netherlands
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University Medical Center, Ljubljana
RECRUITINGLjubljana, 1000, Slovenia
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University hospital Banska Bystrica Námestie Ludvíka Svobodu 1
RECRUITINGBanská Bystrica, 975 17, Slovakia
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University of Bologna Policlinico S. Orsola-Malpigh
NOT_YET_RECRUITINGBologna, 40141, Italy
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University of Gdansk
NOT_YET_RECRUITINGGdansk, Pomorskie Województwo, 80-952, Poland
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Uniwersytecki Szpital Kliniczny (USK) Curie-Skłodowskiej 58
RECRUITINGWroclaw, 50-369, Poland
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Uppsala University Hospital
RECRUITINGUppsala, Sweden
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can aggressive blood pressure treatment slow aortic valve disease?
- Why do animal heart valves wear out? immune system under investigation
- One scan to rule them all? new CT aims to replace multiple heart tests
- Which heart valve design wins for small aortic openings?
- Can a less invasive valve replacement tame a failing aortic valve?
- Can a single stitch beat a double closure for TAVI patients?