Elucidating the Pharmacokinetics/Pharmacodynamics of Aerosolized Colistin against Multidrug-resistant Acinetobacter baumannii and Klebsiella pneumoniae in a Mouse Lung Infection Model [PublishAheadOfPrint]

Pharmacokinetics/pharmacodynamics (PK/PD) of aerosolized colistin was investigated against Acinetobacter baumannii and Klebsiella pneumoniae over 24 h in a neutropenic mouse lung infection model. Dose fractionation studies were performed over 2.64 to 23.8 mg/kg/day, and the data were fitted to a sigmoid inhibitory model. AUC/MIC in the epithelial lining fluid was the most predictive PK/PD index for aerosolized colistin against both pathogens. Our study provides important pharmacological information for optimizing aerosolized colistin.

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