[Translation] A multicenter, randomized, double-blind, placebo-controlled clinical trial to evaluate the safety, tolerability and preliminary efficacy of a single dose of human umbilical cord mesenchymal stem cell injection in the treatment of patients with moderate and severe acute respiratory distress syndrome.
评估人脐带间充质干细胞注射液单次给药在中、重度急性呼吸窘迫综合征患者的安全性、耐受性及初步有效性,探索人脐带间充质干细胞注射液单次给药在中、重度急性呼吸窘迫综合征患者的药效动力学指标(PD)及免疫应答指标特征。
[Translation] To evaluate the safety, tolerability and preliminary effectiveness of a single administration of human umbilical cord mesenchymal stem cell injection in patients with moderate and severe acute respiratory distress syndrome, and to explore the efficacy of a single administration of human umbilical cord mesenchymal stem cell injection in patients with moderate and severe acute respiratory distress syndrome. , pharmacodynamic index (PD) and immune response index characteristics in patients with severe acute respiratory distress syndrome.