Evaluation of the Bactericidal Activity of Plazomicin and Comparators against Multidrug-Resistant Enterobacteriaceae
Author(s) -
Mary Thwaites,
Devon Hall,
Dean L. Shinabarger,
Alisa W. Serio,
Kevin M. Krause,
Andrea Marra,
Chris M. Pillar
Publication year - 2018
Publication title -
antimicrobial agents and chemotherapy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.07
H-Index - 259
eISSN - 1070-6283
pISSN - 0066-4804
DOI - 10.1128/aac.00236-18
Subject(s) - enterobacteriaceae , aminoglycoside , colistin , microbiology and biotechnology , klebsiella pneumoniae , multiple drug resistance , enterobacter , biology , escherichia coli , antibiotics , biochemistry , gene
The next-generation aminoglycoside plazomicin, in development for infections due to multidrug-resistant (MDR) Enterobacteriaceae , was evaluated alongside comparators for bactericidal activity in minimum bactericidal concentration (MBC) and time-kill (TK) assays against MDR Enterobacteriaceae isolates with characterized aminoglycoside and β-lactam resistance mechanisms. Overall, plazomicin and colistin were the most potent, with plazomicin demonstrating an MBC 50/90 of 0.5/4 μg/ml and sustained 3-log 10 kill against MDR Escherichia coli , Klebsiella pneumoniae , and Enterobacter spp.
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