Safety and Efficacy of Clopidogrel for Cerebral Infarction Treatment

Inclusion Criteria: * Patients with an episode of cerebral infarction (excluding cardiogenic cerebral thromboembolism) occurring at least 8 days prior to randomization and for whom the clinical course up to randomization is well-documented * Patients with a cerebral infarct confirmed by Computed Tomography or Magnetic Resonance Image * Body weight : \> 50 kg Exclusion Criteria: * Patients with cardiogenic cerebral thromboembolism or disease that could precipitate cardiogenic cerebral thromboembolism, such as atrial fibrillation or valvular hear disease (including valve replacement) * Patients with Transient Ischemic Attack occuring after the last episode of cerebral infarction * Patients with serious impairment that would hinder detection of new ischemic event * Patients with bleeding diathesis, coagulopathy, or hemorrhagic disease * Patients with history of intracranial hemorrhage * Patients with diabetic retinopathy * Hypertensive patients with a persistent increase of blood pressure.