Journal of Clinical Microbiology
Journal of Clinical Microbiology
5 years ago

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.

Huband MD, Flamm RK, Sader HS, Riedel S, Jones RN
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 therapy 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 MIC (tazobactam at fixed 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.

Publisher URL: https://www.ncbi.nlm.nih.gov/pubmed/28794180

DOI: PubMed:28794180

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