The target population of this study is patients with acute ischemic stroke within 48 hours. All potential participants must provide informed consent, and those who provide informed consent will enter the screening (- 48 ~ 0h), and the screening qualification will be evaluated according to the inclusion criteria. The eligible subjects will enter the treatment period (day 1-7) and will be randomly assigned to the experimental group (SPT-07A injection group) or the control group (placebo group).~During the treatment period, all subjects will receive SPT-07A injection or placebo by intravenous drip, twice a day for 7 consecutive days. During the treatment, all subjects need to receive basic treatment: citicoline sodium injection 0.25g, intravenous drip slowly, once a day, continuous administration for 7 days. According to the Chinese guidelines for the diagnosis and treatment of acute ischemic stroke (2018), the patients were given antihypertensive, hypoglycemic, lipid-lowering, anticoagulant or mannitol. All subjects were not allowed to receive interventional therapy (mechanical thrombectomy or stent implantation, etc.), thrombolysis (such as rtPA and urokinase), other cerebrovascular dilators (such as Butylphthalide, Flunarizine, Nicardipine and Nimodipine, etc.), other neuroprotective agents (such as Edaravone,etc., except citicoline) during the whole trial period. After the end of the treatment period (the 7th day), the subjects will enter the follow-up period (the 8th-90th day).~During the follow-up period, subjects need to be followed up twice (30th day ± 3 days, 90th day ± 7 days).
This is a multicenter, randomized, double-blind, placebo-controlled, parallel controlled clinical trial in Chinese patients with acute ischemic stroke. Objective to evaluate the efficacy and safety of SPT-07A injection compared with placebo in the treatment of patients with acute ischemic stroke.