Personalization of Long-Term Antiplatelet Therapy - RAPID EXTEND (RAPID EXTEND)
Coronary Artery Disease, Myocardial Infarction
About this trial
This is an interventional treatment trial for Coronary Artery Disease focused on measuring 1-year post myocardial infarction, P2Y12 inhibitor, antiplatelet regimen
Eligibility Criteria
Inclusion Criteria:
- >50 years old at 1-year after myocardial infarction (non-ST-elevation myocardial infarction (NSTEMI) or ST-elevation myocardial infarction (STEMI)) during which they had percutaneous coronary intervention (PCI)
- Compliant with dual antiplatelet therapy (DAPT) for ≥ 1 year without an ischemic or bleeding complication after PCI
- Still on DAPT regimen at enrollment
Patients must have 1 of the following atherothrombotic risk enrichment criteria:
i) Age≥ 65 years ii) Diabetes iii) 2nd Prior MI (>1 year ago) iv) multi-vessel coronary disease v) creatinine clearance (CrCl) <60 mL/min.
Exclusion Criteria:
- Intolerance to ticagrelor or clopidogrel
- >18 months post percutaneous coronary intervention (PCI) and myocardial infarction (MI)
- Requirement of a P2Y12 inhibitor
- Requirement of oral anticoagulation
- Take concurrent CYP3A inducing drugs which may interact with ticagrelor (e.g. anti-epileptic drugs)
- History of stroke, TIA or intracranial bleed
- Recent GI bleed or major surgery
- Life expectancy of < 1 year
- Platelet count < 100,000/μl
- Bleeding diathesis
- On dialysis
- Severe liver disease
- At risk for bradycardia.
Sites / Locations
- University of Ottawa Heart Institute
Arms of the Study
Arm 1
Arm 2
Arm 3
Active Comparator
Experimental
Experimental
DAPT - Aspirin and Ticagrelor
Ticagrelor Monotherapy
Personalized Therapy Arm
As per results of the PEGASUS trial, patients will be treated with aspirin 81mg daily and ticagrelor 60mg twice daily
Patients will only receive ticagrelor 60mg twice daily.
Patients allocated to the personalized arm (PA) will have a DAPT score calculated. For those with a score of < 2, only aspirin at 81 mg daily will be prescribed. For those with a score of ≥ 2, P2Y12 inhibitor choice will be dependent on carrier status of CYP2C19 LOF alleles. Heterozygous or homozygous carriers will receive be prescribed ticagrelor 60mg twice daily and non-carriers with will be prescribed clopidogrel 75mg daily.