In this large industry-sponsored randomized non-inferiority trial, 2757 Japanese patients who had a (non-cardioembolic) cerebral infarction in the past 6 months were randomized to cilostazol 100mg BID or ASA 81mg a day. After a follow up of about 2 years, the primary endpoint (cerebral infarction, cerebral hemorrhage, or subarachnoid hemorrhage) occurred in significantly fewer cilostazol patients than ASA patients (2.8% vs 3.7%). Cilostazol patients also had fewer hemorrhagic events (0.8% vs 1.8%), but more side effects (headache, diarrhea, tachycardia). If proven effective in a more generalized patient population, and if tolerable from side effects, cilostazol may become an alternative agent to ASA for secondary stroke prevention (non-cardioembolic) (abstract).
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