Comparative Evaluation of the In Vitro Activities of WCK 5222 (Cefepime-Zidebactam) and Combination Antibiotic Therapies against Carbapenem-Resistant Pseudomonas aeruginosa

被引:15
作者
Mullane, Elias M. [1 ]
Avery, Lindsay M. [1 ]
Nicolau, David P. [1 ,2 ]
机构
[1] Hartford Hosp, Ctr Antiinfect Res & Dev, Hartford, CT 06115 USA
[2] Hartford Hosp, Div Infect Dis, Hartford, CT 06115 USA
关键词
Pseudomonas aeruginosa; WCK; 5222; beta-lactams; carbapenem resistant; gradient diffusion; synergy;
D O I
10.1128/AAC.01669-19
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The in vitro activity of WCK 5222 (cefepime-zidebactam) was compared to that of several available combination therapies among 30 clinical carbapenem-resistant Pseudomonas aeruginosa (CRP) strains using gradient diffusion strips. The combinations included nonsusceptible beta-lactams (cefepime, ceftolozane-tazobactam, and meropenem) with amikacin and fosfomycin. WCK 5222 MICs ranged from 2 to 32 mg/liter, and 97% were <= 16 mg/liter, while 105/146 (72%) combinations demonstrated inhibition below established susceptibility breakpoints. WCK 5222 monotherapy may be preferred over the combinations assessed for CRP infections.
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页数:4
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