Y-3 Injection in the Treatment of Acute Ischemic Stroke Phase II Clinical Trial -- Multicenter, Randomized, Double-blind, Parallel, Placebo-controlled Phase II Clinical Trial

Detailed Summary

The objective of this clinical trial was to explore the efficacy and safety of Y-3 injection at different doses in patients with acute ischemic stroke within 48 hours of onset. A multicenter, randomized, double-blind, parallel, placebo-controlled trial design was designed to include 240 participants. Subjects press 1:1:1: 1 ratio of patients were randomly divided into Y-3 low-dose group (20 mg/ time, qd), medium-dose group (40 mg/ time, qd), high-dose group (60mg/ time, qd) and placebo control group, with 60 cases in each group. Random stratification factors include: Time of onset (≤24 hours, \> 24 hours). The patients were treated for 10 consecutive days (10 times) and followed up to 90 days after the first dose. The trial was divided into three phases: screening/baseline, treatment, and follow-up. Screening/baseline period: Subjects enter the screening/baseline period for screening examination after signing the informed consent. Treatment period: Eligible subjects were randomly assigned at a ratio of 1:1:1:1 to receive Y-3 injection low-dose group, medium-dose group, high-dose group and placebo control drug for 10 consecutive days (10 times), during which relevant examinations required by the protocol were conducted and safety was assessed. Follow-up period: Participants who finished treatment were followed up until 90 days after the first dose. Stroke-related scale scores were performed at 10, 30, and 90 days after first use of the investigational drug The scores of Montgomery Depression Rating Scale (MSAS) and Hamilton Anxiety Scale (HAMA) were performed on the 10th and 90th days after the use of experimental drugs. Adverse events were recorded during treatment and follow-up to further assess safety

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Interventions