This study aims to compare the effectiveness and safety regarding treatment with standard anticoagulant only or adding antiplatelet to anticoagulant in patients with non-valvular atrial fibrillation and significant atherosclerosis including extracranial, intracranial, coronary or peripheral artery.
Although there is a significant increase in the risk of cerebral infarction in the presence of atrial fibrillation, it is difficult to say that all cerebral infarctions occurring in patients with atrial fibrillation are caused by atrial fibrillation. Carotid stenosis is found in 1/4 of patients with atrial fibrillation, which increases the risk of cerebral infarction. Additional antiplatelet therapy to standard anticoagulation therapy should be considered in some patients. To date, the best medical treatment for prevention of cerebral infarction in patients with atrial fibrillation and accompanying atherosclerosis has not been evaluated yet. Edoxaban reduced bleeding complication compared to warfarin in patients with atrial fibrillation. In addition, the ENGAGE AF TIMI-48 study showed a tendency to reduce cerebral infarction (p for interaction = 0.08) when administered in combination with one antiplatelet agent and edoxaban. The administration of antiplatelet agents may be due to patients had accompanying myocardial infarction or cerebral infarction. This group is also thought to have a high risk of bleeding due to high HAS-BLED scores. Nonetheless, there was a similar degree of bleeding in patients receiving additional antiplatelet agents. There was also less bleeding in the warfarin arm than in the use of additional antiplatelet agents. (Major bleeding: 0.19 vs 0.24% / yr; intracranial hemorrhage: 0.43 vs 0.57% / yr) Thus, Edoxaban have good clinical trial results in combination with antiplatelet agents in atrial fibrillation with atherosclerosis compared to other NOACs(new oral anticoagulants). It is also considered to be suitable for combination therapy with antiplatelet agents because of its advantages in different bleeding compared to other warfarin. However, there is no evidence to suggest that Edoxaban alone or in combination with additional antiplatelet agents is better for stroke patients with atrial fibrillation and significant arteriosclerosis.
Study Type
OBSERVATIONAL
Enrollment
1,200
when the patients will be initially registered in this study, duty physicians will make a decision to give additional antiplatelet therapy in addition to standard edoxaban therapy.
Asan Medical Center
Seoul, South Korea
MACE (major adverse cardiac event)
Duration for first occurrence of major cardiovascular events after patient registration: ischemic stroke, hemorrhagic stroke, myocardial infarction, vascular death
Time frame: 18 months
Hemorrhagic stroke
Duration for first occurrence of hemorrhagic stroke after patient registration
Time frame: 18 months
Stroke
Duration for first occurrence of stroke (ischemic and hemorrhagic) after patient registration
Time frame: 18 months
Acute Myocardial Infarction
Duration for first occurrence of acute myocardial infarction after patient registration
Time frame: 18 months
Major bleeding
Duration for occurrence of major bleeding based on ISTH( International Society on Thrombosis and Haemostasis) after patient registration
Time frame: 18 months
Vascular death
Duration for first occurrence of vascular death after patient registration
Time frame: 18 months
Ischemic stroke
Duration for first occurrence of ischemic stroke after patient registration
Time frame: 18 months
Net clinical benefit based on reduction in major adverse cardiac event compared to major bleeding events
Net clinical benefit based on reduction in major adverse cardiac event compared to major bleeding events
Time frame: 18 months
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