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Can a new heart valve keep future artery access open?
NCT ID NCT07813273
First seen Sep 10, 2026 · Last updated Sep 11, 2026 · Updated 1 time
Summary
Researchers are studying whether the Evolut FX Plus replacement heart valve allows doctors to reach the coronary arteries after a TAVI procedure. The trial enrolls about 122 people aged 65 and older with severe aortic stenosis. Right after the valve is implanted, doctors try to thread a catheter into the left and right coronary arteries through the valve's enlarged frame cells. CT scans months later map how the valve sits relative to the arteries.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Evolut FX Plus transcatheter heart valve, a replacement aortic valve with enlarged frame cells
- What this could lead to
- If the valve's large frame cells keep coronary arteries reachable, doctors could more easily perform future heart procedures in people who receive this valve.
- What could go wrong
- This is a single-arm registry with about 122 patients, so it cannot prove the valve works better than others. Coronary access may still fail in some patients, and CT scans and contrast dye carry their own small risks.
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.
- Participants
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About 122 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients with severe aortic stenosis undergoing TAVI with the Evolut FX Plus transcatheter heart valve.
- Ages
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65 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. Patients with severe aortic stenosis undergoing TAVI with the Evolut FX Plus transcatheter heart valve. 2. Age ≥65 years. 3. Ability and willingness to provide written informed consent for participation in the study. Exclusion Criteria: 1. Inability to undergo contrast-enhanced cardiac CT before TAVI. 2. Anomalous origin of a coronary artery. 3. Bicuspid aortic valve. 4. Previous surgical or transcatheter aortic valve replacement. 5. Cardiogenic shock or hemodynamic instability. 6. Chronic kidney disease stage 3b, 4, or 5, defined as estimated glomerular filtration rate (eGFR) \<45 mL/min/1.73 m². 7. Thrombocytopenia (platelet count \<100,000/μL) or an increased bleeding risk precluding antiplatelet or anticoagulant therapy. 8. Allergy or hypersensitivity to aspirin or clopidogrel precluding antiplatelet therapy in patients without an indication for oral anticoagulation.
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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 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.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- AI-Powered ultrasound could replace CT for heart valve diagnosis
- New study aims to simplify care for patients with multiple leaky heart valves
- New registry to monitor Long-Term success of keyhole heart valve treatments