Clinical Research Directory

Inclusion Criteria: * Patients received percutaneous coronary intervention with cobalt-chromium everolimus-eluting stent under the setting of acute coronary syndrome * Patients who are capable of oral dual antiplatelet therapy consisting of aspirin and P2Y12 receptor antagonist Exclusion Criteria: * Patients requiring oral anticoagulants * Patients with medical history of intracranial hemorrhage * Patients who have experienced serious complications (myocardial infarction, stroke, and major bleeding) during hospital stay after percutaneous coronary intervention * Patients with drug eluting stents other than Cobalt chromium everolimus eluting stents implanted at the time of enrollment * Patients confirmed to have no tolerability to clopidogrel before enrollment * Patients requiring continuous administration of antiplatelet drugs other than aspirin and P2Y12 receptor antagonists at the time of enrollment