Aortic stenosis for which a transcatheter aortic valve implantation (TAVI) is performed.
Conditions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Cohort A 1. Heart team agrees on indication and treatment proposal; 2. Patient has provided written informed consent; Cohort B 1. Heart team agrees on indication and treatment proposal; 2. Need for long-term oral anticoagulation; 3. Patient has provided written informed consent. Cohort C 1. Heart team agrees on indication and treatment proposal; 2. Patient has provided written informed consent. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) no F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 2200
Exclusion criteria
Exclusion criteria: Cohort A 1. Need for long-term oral anticoagulation; 2. Drug-eluting stent implantation within 3 months prior to TAVI procedure; 3. Bare-metal stent implantation within 1 month prior to TAVI procedure; 4. Allergy or intolerance to aspirin or clopidogrel. Cohort B 1. Drug-eluting stent implantation within 3 months prior to TAVI procedure; 2. Bare-metal stent implantation within 1 month prior to TAVI procedure; 3. Allergy or intolerance to clopidogrel. Cohort C 1. Patient is younger than 65 years old; 2. Combination surgical procedure.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: 1. To investigate the safety and efficacy of omission of clopidogrel during follow-up in patients without an indication for oral anticoagulation (OAC) after TAVI (Cohort A); 2. To investigate the safety and efficacy of omission of clopidogrel during follow-up in patients with an indication for OAC after TAVI (Cohort B); ;Secondary Objective: 1. To investigate the safety and efficacy of the studied antithrombotic treatment regimens after TAVI compared with the common practiced antithrombotic treatment after surgical aortic valve replacement (SAVR) (Cohort C); 2. Furthermore we obtain to investigate the effect of omission of clopidogrel on cognitive and functional parameters, quality of life and costs.;Primary end point(s): Primary safety outcome is defined as all bleeding. Co-primary safety outcome is defined as all non-procedure related bleeding. ;Timepoint(s) of evaluation of this end point: 30 days and 12 months | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): Secondary efficacy outcome is a composite of cardiovascular mortality, major bleeding, life threatening/disabling bleeding, all-cause stroke, and myocardial infarction. Co-secondary efficacy outcome is a composite of cardiovascular mortality, non-procedure related bleeding, all-cause stroke, and myocardial infarction.;Timepoint(s) of evaluation of this end point: 30 days and 12 months | — |
Countries
Belgium, Netherlands, United Kingdom
Contacts
St. Antonius Hospital