Lancet respir med:中重度急性呼吸窘迫综合征的新疗法——间充质干细胞注射疗法

2018-11-17 MedSci MedSci原创

骨髓来源的间充质干细胞(MSCs)疗法在急性呼吸窘迫综合征(ARDS)的预临床模型中显现出治疗潜能。在重症ARDS患者中应用MSCs的安全性尚不明确。现研究人员对MSCs用于中重度ARDS患者的安全性进行评估。研究人员开展一前瞻性的双盲多中心随机试验,在USA的5个大学医疗中心招募辅助呼吸的中重度ARDS患者(氧分压/激发氧<27kPa、呼气末正压[PEEP]≥8cmH2O)。按2:1将患者随机分

骨髓来源的间充质干细胞(MSCs)疗法在急性呼吸窘迫综合征(ARDS)的预临床模型中显现出治疗潜能。在重症ARDS患者中应用MSCs的安全性尚不明确。现研究人员对MSCs用于中重度ARDS患者的安全性进行评估。

研究人员开展一前瞻性的双盲多中心随机试验,在USA的5个大学医疗中心招募辅助呼吸的中重度ARDS患者(氧分压/激发氧<27kPa、呼气末正压[PEEP]≥8cmH2O)。按2:1将患者随机分至实验组(予以MSCs,10x106/kg)或安慰剂。排除有创伤的或中重度肝病,以及既往2年进行过抗癌治疗的和未满18岁的患者。主要结点是安全性。

2014年3月24日-2017年2月9日,共筛查了1038位患者,其中60位符合要求进行实验治疗。无患者出现预测的MSC相关的血流动力学或呼吸方面的副反应。MSC组一位患者在注射MSC后24小时内死亡,但经判断与注射可能无关。两组28天内的死亡率无差别(MSC组 30%、安慰剂组15%,优势比2.4%,95% CI 0.5-15.1)。起始时,MSC组的急性生理和慢性健康评估III(APACHE III)的平均得分、每分钟通气量和PEEP均高于安慰剂组(104[SD 31] vs 89[33];11.1[3.2] vs 9.6[2.4]L/min;12.4[3.7] vs 10.8[2.6]cmH2O)。经APACHE III评分校准后,28天内的死亡率风险比为1.43(95% CI 0.40-5.12,p=0.58)。MSCs的存活率浮动在36%-85%。

对于中重度ARDS,注射一剂MSCs是安全的。需要更大规模的临床试验评估其效果,同时应提高MSCs的存活率。


原始出处:

Michael A Matthay,et al.Treatment with allogeneic mesenchymal stromal cells for moderate to severe acute respiratory distress syndrome (START study): a randomised phase 2a safety trial.The Lancet Respiratory Medicine. November 16,2018.https://doi.org/10.1016/S2213-2600(18)30418-1

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    2019-11-02 howi
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    2018-11-19 kcb074
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    2018-11-19 hb2008ye

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