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Ceftazidime-Avibactam Versus Colistin for the Treatment of Multidrug-Resistant Infections: A Multicenter Cohort Study

Abstract

To evaluate the real-world evidence of ceftazidime-avibactam (CAZ-AVI) compared to intravenous colistin for the treatment of multidrug-resistant (MDR) infections. This is a multicenter, retrospective cohort study conducted in the period between 2017 and 2023 at five institutions for patients who received either CAZ-AVI or colistin-based regimens for treating MDR infections. Outcomes were compared using multivariate logistic regression analysis. Among the screened patients, 203 patients were included: 89 in the CAZ-AVI group and 114 in the colistin group. A total of 57% presented with pneumonia, 21% with bacteremia, and 61% were in the intensive care unit. The rate of clinical cure was significantly higher among patients who received CAZ-AVI (67% vs. 50%; OR, 2.07; 95% CI, 1.16-3.68). The rate of in-hospital mortality was numerically lower among patients who received CAZ-AVI (40% vs. 49%; OR, 0.58; 95% CI, 0.33-1.03). The rate of AKI was significantly lower among patients who received CAZ-AVI (15% vs. 43%; OR, 0.23; 95% CI, 0.11-0.45). CAZ-AVI was more effective in treating MDR infections and showed a better safety profile compared to colistin. Thus, CAZ-AVI could be a better alternative for treating MDR infections.

References
1.
Alatoom A, Alattas M, Alraddadi B, Ayoub Moubareck C, Hassanien A, Jamal W . Antimicrobial Resistance Profiles of Pseudomonas aeruginosa in the Arabian Gulf Region Over a 12-Year Period (2010-2021). J Epidemiol Glob Health. 2024; 14(3):529-548. PMC: 11442796. DOI: 10.1007/s44197-024-00191-y. View

2.
Almangour T, Aljabri A, Al Musawa M, Almohaizeie A, Almuhisen S, Damfu N . Ceftolozane-tazobactam vs. colistin for the treatment of infections due to multidrug-resistant Pseudomonas aeruginosa: a multicentre cohort study. J Glob Antimicrob Resist. 2022; 28:288-294. DOI: 10.1016/j.jgar.2022.01.023. View

3.
Oliota A, Penteado S, Tonin F, Fernandez-Llimos F, Sanches A . Nephrotoxicity prevalence in patients treated with polymyxins: a systematic review with meta-analysis of observational studies. Diagn Microbiol Infect Dis. 2019; 94(1):41-49. DOI: 10.1016/j.diagmicrobio.2018.11.008. View

4.
Magiorakos A, Srinivasan A, Carey R, Carmeli Y, Falagas M, Giske C . Multidrug-resistant, extensively drug-resistant and pandrug-resistant bacteria: an international expert proposal for interim standard definitions for acquired resistance. Clin Microbiol Infect. 2011; 18(3):268-81. DOI: 10.1111/j.1469-0691.2011.03570.x. View

5.
Tumbarello M, Trecarichi E, Corona A, De Rosa F, Bassetti M, Mussini C . Efficacy of Ceftazidime-Avibactam Salvage Therapy in Patients With Infections Caused by Klebsiella pneumoniae Carbapenemase-producing K. pneumoniae. Clin Infect Dis. 2018; 68(3):355-364. DOI: 10.1093/cid/ciy492. View