CT scan could guide safer blood thinner use after TAVI
NCT ID NCT06168370
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a CT scan 3 months after TAVI (aortic valve replacement) can help doctors decide who needs blood thinners and who can stop them. Currently, patients take aspirin for life, which can cause bleeding. The trial will enroll 2,500 people and compare this personalized approach to standard care.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- apixaban (a blood thinner)
- What this could lead to
- If successful, this approach could reduce the risk of blood clots and strokes after TAVI without increasing bleeding, potentially replacing lifelong aspirin for many patients.
- What could go wrong
- This is a large trial but still experimental. The CT-guided strategy may not prove better than standard care, and some patients may still experience bleeding or clotting events.
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 2,500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2023
- Expected to finish
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Dec 2028
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.
- Ages
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18 to 110 years
- 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: * Successful TAVI (according to the VARC-3 criteria)10 with any approved device * Ability to understand and to comply with the study protocol * Written informed consent Exclusion Criteria: * Existing indication for oral anticoagulation (e.g. atrial fibrillation, obstructive valve thrombosis detected by echocardiography prior to inclusion) * Existing indication for dual antiplatelet therapy at three months after TAVI (rare at this time point) * Creatinine clearance \<15 mL/min (based on the CKD-EPI formula) or on renal replacement therapy
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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
1 site. 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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St. Antonius Hospital
RECRUITINGNieuwegein, Netherlands
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a single antiplatelet drug beat aspirin after heart valve replacement?
- Lab and body tests aim to find best heart valve for small aortic openings
- New heart valve device tested in humans for first time
- New heart valve device shows early promise in small study
- Head-to-Head: which new heart valve is best for aortic stenosis?
- New heart valve registry aims to confirm Real-World success