Integrated Pharmacokinetic-Pharmacodynamic (PK/PD) Model to Evaluate the in Vivo Antimicrobial Activity of Marbofloxacin Against Pasteurella Multocida in Piglets
Overview
Affiliations
Background: Marbofloxacin is a veterinary fluoroquinolone with high activity against Pasteurella multocida. We evaluated it's in vivo activity against P. multocida based on in vivo time-kill data in swine using a tissue-cage model. A series of dosages ranging from 0.15 to 2.5 mg/kg were administered intramuscularly after challenge with P. multocida type B, serotype 2.
Results: The ratio of the 24 h area under the concentration-time curve divided by the minimum inhibitory concentration (AUCTCF/MIC) was the best PK/PD index correlated with the in vivo antibacterial effectiveness of marbofloxacin (R2 = 0.9279). The AUCTCF/MIC necessary to achieve a 1-log CFU/ml reduction and a 3-log CFU/ml (90% of the maximum response) reduction as calculated by an inhibitory sigmoid E model were 13.48 h and 57.70 h, respectively.
Conclusions: Marbofloxacin is adequate for the treatment of swine infected with P. multocida. The tissue-cage model played a significant role in achieving these PK/PD results.
Pharmacokinetics and Pharmacodynamics Evaluation of Amoxicillin Against in Dogs.
Jeong J, Kim J, Kim J, Kim C, Chung E, Boo S Pathogens. 2025; 13(12.
PMID: 39770380 PMC: 11679838. DOI: 10.3390/pathogens13121121.
Pharmacokinetic/pharmacodynamic integration of tilmicosin against in a piglet tissue cage model.
Chen Y, Ji X, Zhang S, Wang W, Zhang H, Ding H Front Vet Sci. 2023; 10:1260990.
PMID: 37732140 PMC: 10507324. DOI: 10.3389/fvets.2023.1260990.
Yao L, Yang L, Ling Y, Wei Y, Shen X, Ding H Front Vet Sci. 2022; 9:822432.
PMID: 35419449 PMC: 8995781. DOI: 10.3389/fvets.2022.822432.
Pharmacodynamic Parameters of Pharmacokinetic/Pharmacodynamic (PK/PD) Integration Models.
Zhang L, Xie H, Wang Y, Wang H, Hu J, Zhang G Front Vet Sci. 2022; 9:860472.
PMID: 35400105 PMC: 8989418. DOI: 10.3389/fvets.2022.860472.
Chen Q, Zhang Z, Chen S, Chen J, Cheng Y, Liu A Front Vet Sci. 2021; 8:615405.
PMID: 34235193 PMC: 8256745. DOI: 10.3389/fvets.2021.615405.