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Study identifier: NCT06168370 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Personalized, CT-guided Antithrombotic Therapy Versus Lifelong Single Antiplatelet Therapy to Reduce Thromboembolic and Bleeding Events in Non-atrial Fibrillation Patients After Transcatheter Aortic Valve Implantation

Condition: Severe Aortic Valve Stenosis  ·  Sponsor: St. Antonius Hospital

PhaseNA
Planned participants2500
Who can joinAll sexes, 18 Years to 110 Years
Healthy volunteersNo

About this study

The POPular ATLANTIS trial aims to investigate CT-guided antithrombotic therapy compared to lifelong single antiplatelet therapy after a transcatheter aortic valve implantation (TAVI) procedure. Only patients without an indication for anticoagulants will be included in this trial. Currently, lifelong single antiplatelet therapy (mostly aspirin) is considered the standard of care for these patients. However, this approach poses a bleeding risk with only a minimal reduction in thromboembolic events. After 3 months, a CT scan will be conducted to assess the presence of thrombosis on the newly implanted TAVI valve. Based on the results of a 4D CT scan, the decision will be made whether the patient should receive no anticoagulant or antithrombotic therapy with apixaban. CT-guided antithrombotic therapy holds the potential for a greater reduction in thromboembolic events without increasing the bleeding risk.

This description comes directly from the study's public registry record.

Talk to the study team

Christiaan Overduin  ·  +31883200931  ·  c.overduin@antoniusziekenhuis.nl

Always discuss trial participation with your own doctor first.

Locations (1)

St. Antonius HospitalNieuwegein, NetherlandsRecruiting

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Source record: clinicaltrials.gov/study/NCT06168370