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提法科金 (重组组织因子通路抑制剂) 在严重败血症中的有效性和安全性:随机对照试验
Edward Abraham1, Konrad Reinhart, Steven Opal
1Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Health Sciences Center, Denver 80262, USA. edward.abraham@uchsc.edu
JAMA
|July 10, 2003
概括
复合组织因子通路抑制剂 (TFPI) Tifacogin 没有降低高INR严重败血症患者的死亡率. 该药物增加了出血风险,尽管抑制了血栓生成,但没有显示出死亡益处.
科学领域:
- 凝血和血栓症研究研究
- 临界护理医学 临界护理医学
- 药理学研究 药理学研究
背景情况:
- 败血症通过组织因子触发凝血,导致血栓生成和纤维素形成.
- 组织因子通路抑制剂 (TFPI) 复合体与组织因子和蛋白酶一起抑制血栓激素和纤维素.
- 蒂法科金是一种用于治疗败血症的复合型TFPI.
研究的目的:
- 评估提法科金 (重组TFPI) 是否改善了INR升高的严重败血症患者的存活率.
- 评估tifacogin在严重败血症中的安全性,包括具有低INR的患者.
- 为了确定蒂法科金对死亡率和出血风险的影响.
主要方法:
- 一个多中心,随机,双盲,安慰剂控制的第三期试验,涉及1754名严重败血症患者.
- 患者在96小时内接受静脉注射蒂法科金或安慰剂,分层为高 (>=1.2) 或低 (<1.2) 的INR.
- 主要疗效终点是所有原因的28天死亡率.
主要成果:
- 在高INR (34.2%与33.9%,P=.88) 的患者中,蒂法科金和安慰剂组之间的28天总死亡率相似.
- 蒂法科金显著降低了前热血素片段1.2和热血素:抗热血素复合物的水平.
- 在tifacogin组中观察到严重不良事件的增加,特别是出血 (6.5%与4.8%高INR; 6.0%与3.3%低INR).
结论:
- 在具有高INR的严重败血症患者中,提法科金治疗没有影响全因死亡率.
- 提法哥金的使用与出血风险增加有关,不管基线INR是多少.
- 这项研究没有证明,在严重的败血症中,蒂法科金对死亡率有好处.
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