• Am J Transl Res · Jan 2020

    The efficacy and safety of remimazolam tosylate versus propofol in patients undergoing colonoscopy: a multicentered, randomized, positive-controlled, phase III clinical trial.

    • Shaohui Chen, Jin Wang, Xiaohan Xu, Yuguang Huang, Shanfu Xue, Anshi Wu, Xiaoju Jin, Qiang Wang, Jianrui Lyu, Sheng Wang, Yujuan Li, Yonghao Yu, Dengbin Ai, Ailin Luo, Su Min, Lin Li, Xiaohua Zou, Jin Liu, Peilin Lv, Xiaoqin Chai, Xude Sun, Zhibin Zhao, and Jiaqiang Zhang.
    • Department of Anesthesiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100730, China.
    • Am J Transl Res. 2020 Jan 1; 12 (8): 4594-4603.

    AbstractThis study aimed to evaluate the efficacy and safety of remimazolam tosylate versus propofol in patients undergoing colonoscopy. In this multicentered, blinded, randomized, active-controlled, non-inferior phase III trial, 384 eligible patients who were about to undergo colonoscopy were randomized as a ratio of 1:1 into remimazolam and propofol group. Procedure success was assessed and defined as the completion of colonoscopy without administration of rescue sedative agent or more than 5 top-ups of trial drug in any 15 minute-period after initial administration of trial drug. Sedation quality was evaluated by Modified Observer's Assessment of Alertness/Sedation score. Treatment-emergent adverse events were recorded. Procedure success rate was 96.91% (188/194) in remimazolam group and 100% (190/190) in propofol group, and the difference in rate was -3.09% with 95% confidence interval (CI) of -5.53%~-0.66%. Since the lower limit of 95% CI was greater than the non-inferiority margin of -8.00%, the efficacy of remimazolam tosylate was non-inferior to propofol. Besides, induction time of sedation was increased (P<0.001), while hypotension and respiratory depression was decreased in remimazolam group compared to propofol group; however, time to fully alert (P>0.05) or time to discharge (P>0.05) were unchanged. For safety assessment, total treatment-emergent adverse events were decreased in remimazolam group compared to propofol group (P<0.001); specifically, administration site pain (P<0.001), increased bilirubin (P=0.019), decreased respiratory rate (P<0.001) and decreased SpO2 (P<0.001) were less frequent in remimazolam group compared with propofol group. In conclusion, remimazolam tosylate is non-inferior in sedation efficacy while safer than propofol in patients undergoing colonoscopy.AJTR Copyright © 2020.

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