Pharmacokinetics and pharmacodynamics of levofloxacin in bronchial mucosa and lung tissue of patients undergoing pulmonary operation

  • Authors:
    • Guoying Cao
    • Yongjun Zhu
    • Xin Xie
    • Yuancheng Chen
    • Jicheng Yu
    • Jing Zhang
    • Zhiming Chen
    • Liewen Pang
    • Yingyuan Zhang
    • Yaoguo Shi
  • View Affiliations

  • Published online on: May 5, 2020     https://doi.org/10.3892/etm.2020.8715
  • Pages: 607-616
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Levofloxacin is a major antimicrobial agent that is used for the treatment of community‑acquired lower respiratory tract infections (LRTIs). The present study was designed to investigate the pharmacokinetics (PK) and pharmacodynamics (PD) of levofloxacin in bronchial mucosa and lung tissue. A total of 32 patients undergoing pulmonary surgery were randomly assigned to one of four groups (8 subjects/group). All patients received a single dose of 500 mg levofloxacin orally prior to the operation. Blood, lung tissue and bronchial mucosa samples were collected prior to treatment and at 1.5, 4, 8, 12 and 24 h following treatment. The drug concentration was determined and PK and PD profiles were calculated using MATLAB software. The peak concentration of levofloxacin was 7.0±1.2 µg/g in lung tissues and 9.4±2.1 µg/g in bronchial mucosa. The corresponding area under the curve between 0 and 24 h (AUC0‑24) was 85.7±8.5 and 137.3±19.4 µg h/g. The mean permeability of levofloxacin (ratio of concentration in tissue to that in plasma) was 2.4 in lung tissue and 4.4 in the bronchial mucosa. The PK profiles of levofloxacin in the plasma, lung and bronchial mucosa were described using an integrated one‑compartment model. The probability of fAUC0‑24/minimal inhibitory concentration (MIC) target attainment of levofloxacin against Streptococcus pneumoniae in the lung and bronchial mucosa was maintained at 100% when MIC ≤1 mg/l, while the cumulative fraction of fAUC0‑24/MIC in the corresponding tissues was 94.4 and 98.1%, respectively. The present study demonstrated the high permeability of levofloxacin in the lung and bronchial mucosa of patients undergoing pulmonary surgery. In conclusion, treatment using 500 mg levofloxacin exhibits good clinical and microbiological efficacy for use in LRTIs that are caused by S. pneumoniae. This trial was registered retrospectively in the Chinese Clinical Trial Registry on January 13, 2020 (registration no. ChiCTR2000029096).
View Figures
View References

Related Articles

Journal Cover

July-2020
Volume 20 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Cao G, Zhu Y, Xie X, Chen Y, Yu J, Zhang J, Chen Z, Pang L, Zhang Y, Shi Y, Shi Y, et al: Pharmacokinetics and pharmacodynamics of levofloxacin in bronchial mucosa and lung tissue of patients undergoing pulmonary operation. Exp Ther Med 20: 607-616, 2020
APA
Cao, G., Zhu, Y., Xie, X., Chen, Y., Yu, J., Zhang, J. ... Shi, Y. (2020). Pharmacokinetics and pharmacodynamics of levofloxacin in bronchial mucosa and lung tissue of patients undergoing pulmonary operation. Experimental and Therapeutic Medicine, 20, 607-616. https://doi.org/10.3892/etm.2020.8715
MLA
Cao, G., Zhu, Y., Xie, X., Chen, Y., Yu, J., Zhang, J., Chen, Z., Pang, L., Zhang, Y., Shi, Y."Pharmacokinetics and pharmacodynamics of levofloxacin in bronchial mucosa and lung tissue of patients undergoing pulmonary operation". Experimental and Therapeutic Medicine 20.1 (2020): 607-616.
Chicago
Cao, G., Zhu, Y., Xie, X., Chen, Y., Yu, J., Zhang, J., Chen, Z., Pang, L., Zhang, Y., Shi, Y."Pharmacokinetics and pharmacodynamics of levofloxacin in bronchial mucosa and lung tissue of patients undergoing pulmonary operation". Experimental and Therapeutic Medicine 20, no. 1 (2020): 607-616. https://doi.org/10.3892/etm.2020.8715