Determination of Disk Diffusion and MIC Quality Control Guidelines for High-Dose Cefepime-Tazobactam (WCK 4282), a Novel Antibacterial Combination Consisting of a β-Lactamase Inhibitor and a Fourth-Generation Cephalosporin.

Abstract:

:High-dose cefepime-tazobactam (1:1; WCK 4282), a novel antibacterial combination consisting of the β-lactamase inhibitor tazobactam and a fourth-generation cephalosporin, is under clinical development for the treatment of serious Gram-negative infections. A quality control (QC) study was performed to establish disk diffusion and MIC ranges for cefepime-tazobactam for multiple QC reference strains. The cefepime-tazobactam QC ranges for a fixed tazobactam MIC of 8 μg/ml and disk diffusion (30/20-μg disk) test methods were approved by the CLSI Subcommittee on Antimicrobial Susceptibility Testing in January 2015 and January 2016. These QC ranges will be important for accurate in vitro activity evaluations of cefepime-tazobactam when tested against clinical Gram-negative bacteria during clinical studies and routine patient care.

journal_name

J Clin Microbiol

authors

Riedel S,Huband MD,Sader HS,Flamm RK,Jones RN

doi

10.1128/JCM.00788-17

subject

Has Abstract

pub_date

2017-10-01 00:00:00

pages

3130-3134

issue

10

eissn

0095-1137

issn

1098-660X

pii

JCM.00788-17

journal_volume

55

pub_type

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