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在发病后4.5至6小时内 (EXIT-BT2) 治疗急性缺血性中风的静脉静脉酶:理由和设计
Yi-Han Wang1, Zhen-Ni Guo2, Ming-Rui Chen1
1Department of Neurology, General Hospital of Northern Theater Command, Shenyang, China.
European stroke journal
|June 11, 2024
概括
在EXIT-BT2试验中,研究了静脉注射的薄膜酶 (TNK) 是否对急性缺血性中风 (AIS) 患者在发病后4.5至6小时内安全有效. 这项研究旨在延长血栓溶解的时间窗口,从而有可能改善更多中风患者的治疗结果.
科学领域:
- 神经学 神经学
- 心血管医学 心血管医学
- 紧急医疗 紧急医疗
背景情况:
- 目前使用静脉血栓溶解治疗急性缺血性中风 (AIS) 的治疗方法仅限于症状出现后4.5小时内.
- 之前的第二阶段EXIT-BT试验表明,在AIS患者4.5至6小时之间,基甲酶 (TNK) 的潜在安全性和益处.
- EXIT-BT2试验旨在证实或反驳EXIT-BT试验关于延长血栓溶解时间窗口的发现.
研究的目的:
- 在发病后4.5至6小时之间患有急性缺血性中风 (AIS) 的患者中研究基酶 (TNK) 的疗效和安全性.
- 为了评估TNK的有效性与或没有并发的内血管治疗.
- 为了确定TNK是否在这个延长的时间窗口中提供了有利的风险/收益概况.
主要方法:
- 前性,随机化,开放标签,盲目的终点评估 (PROBE),多中心研究.
- 将招募1440名在发病4.5至6小时之间患有AIS的患者.
- 患者被随机分配1:1接受TNK (0.25 mg/kg,最大25 mg) 或标准医疗护理.
- 两组都接受了标准的中风护理;结果在90天后进行评估.
主要成果:
- 主要疗效终点:卓越的功能性结果 (修改的兰金级评分0-1在90天).
- 主要安全终点:在24小时内出现症状性脑内出血.
- 研究发现,在0.05的显著水平上,80%的功率检测出优势.
结论:
- EXIT-BT2试验的结果将确定AIS患者静脉TNK在4.5至6小时窗口中的风险/益处概况.
- 这项研究有可能扩大AIS患者的治疗资格.
- 这些发现可能会影响急性缺血性中风管理的临床指南.
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