Anti-Thrombotic Strategy After Trans-Aortic Valve Implantation for Aortic Stenosis

"Investigational Product is open label apixaban 5 mg tablets taken orally two times a day for 12 months. Subjects with 2 or more of the following characteristics will take apixaban 2.5 mg tablets orally twice daily: age ≥80 years, body weight \<60 kg, serum creatinine ≥1.5 mg/dL \[133 μMol/L\].~\- Also, subjects with severe renal insufficiency \[calculated Creatinine Clearance (Cr.Cl.) (Cockroft-Gault) between 15-29 ml/min\] will take apixaban 2.5 mg tablets orally twice daily"

VKA or Antiplatelet therapy