SY007 in Patients With Acute Ischemic Stroke

Key Inclusion Criteria: * Aged from18 Years to 80 Years * Within 24h after the onset of stroke symptoms (time the patient was last seen well) * Score range from 4 to 20 points, inclusive, on the NIHSS at randomization * Prior to index stroke, patient was able to perform basic activities of daily living without assistance, mRS score≤1 * Absence of intracranial hemorrhage on brain CT or MRI * Patients or legal representatives can give informed consent Key Exclusion Criteria: * Venous thrombolytic therapy or endovascular treatments have been applied for patients; or Patients plan to conduct these kind of treatments. * Glasgow score of Patients ≤8 * Patients are receiving oral anticoagulants or INR\>3.0 * Baseline blood platelet counts \<80\*109/L * NIHSS score could not been obtained at baseline * FPG levels \< 50mg/dL or \>400mg/dL * Patients with Kidney disorder eGFR \<30 mL/min or patients need dialysis * Patients with Acute and Chronic hepatitis, or Liver diseases (AST or/and ALT \>2 × ULN(upper limit normal)) * systolic blood pressure≥220mmHg or/and diastolic blood pressure≥120mmHg ; or Blood pressure under 90/60mmHg.