Chinese Journal of Pharmacovigilance ›› 2020, Vol. 17 ›› Issue (9): 553-558.
DOI: 10.19803/j.1672-8629.2020.09.02

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Cardiotoxicity Evaluation of Moxifloxacin and Levofloxacin Used in Conjunction with Antiarrhythmic Drugs through HiPSC-CM

WANG Qi1, YAN Yujing1, REN Lu1, WEN Hairuo1,*, GUO Jian2,*   

  1. 1National Institutes for Food and Drug Control, Beijing 100050, China;
    2Emergency Department, Beijing Tongren Hospital Affiliated to Capital Medical University, Beijing, 100730, China
  • Received:2020-08-17 Revised:2020-08-17 Online:2020-09-15 Published:2020-08-17

Abstract: Objective To evaluate the cardiotoxicity of quinolone antibiotics used in combination with antiarrhythmic drugs using human induced pluripotent stem cell derived cardiac myocytes (hiPSC-CM) and the real-time cell analyzer (RTCA). Methods The hiPSC-CM was seeded onto the RTCA Cardio E-Plate 96 and treated with moxifloxacin, levofloxacin, quinidine, procainamide, and amiodarone of different concentrations, while the normalized cell index (NCI) and normalized beat rate (NBR) were used for the screening of toxic concentrations. After 24 hours of pretreatment with the highest non-toxic concentration and the lowest toxic concentration of moxifloxacin or levofloxacin, different concentrations of quinidine, procainamide, and amiodarone were used to treat the cells, and the difference in the NCI between the groups was compared. Results Moxifloxacin, levofloxacin, quinidine, procainamide, and amiodarone all decreased the NCI when used alone to treat the cells (P <0.05). Moxifloxacin combined with quinidine or procainamide reduced the NCI of cells (P <0.05), so did levofloxacin combined with amiodarone (P <0.05). Conclusion This study suggests that the combination of moxifloxacin and levofloxacin with antiarrhythmic drugs could increase the risk of cardiotoxicity, and that the in vitro evaluation model based on hiPSC-CM and RTCA is applicable to the prediction of risks of drug cardiotoxicity.

Key words: moxifloxacin, levofloxacin, arrhythmia, human induced pluripotent stem cell, cardiac myocytes, cardial, real-time cell analysis, cardiotoxicity, quinidine, procainamidel, amiodarone

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