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Journal Article
Meta-Analysis
Systematic Review
Efficacy and safety of ceftazidime/avibactam: a systematic review and meta-analysis.
Journal of Antimicrobial Chemotherapy 2018 August 2
Background: Ceftazidime/avibactam is approved for complicated intra-abdominal and urinary tract infections (UTIs) based on results from randomized controlled trials (RCTs). Data regarding its effectiveness in treating hospital-acquired infections or resistant pathogens have not been systematically compiled.
Methods: A systematic review and meta-analysis including RCTs evaluating ceftazidime/avibactam versus comparator for the treatment of any infection. Primary outcome was 30 day all-cause mortality. Subgroups of hospital-acquired infections and specific resistance phenotypes were planned.
Results: Seven publications (eight trials, 4093 patients) were included, reporting a baseline ∼25% of ESBL-carrying Enterobacteriaceae. No significant difference between ceftazidime/avibactam and comparator (mostly carbapenem) was demonstrated for 30 day all-cause mortality, late follow-up mortality and clinical response [relative risk (RR) 1.10, 95% CI 0.70-1.72, P = 0.69; RR 1.23, 95% CI 0.87-1.76, P = 0.25; RR 0.98, 95% CI 0.96-1.01, P = 0.21, respectively, without significant heterogeneity]. Higher microbiological response rate was demonstrated with ceftazidime/avibactam in patients with UTI (RR 1.14, 1.0-1.29, P = 0.05, I2 = 51%). No significant difference in clinical response was demonstrated for patients with ceftazidime-resistant pathogens (RR 1.02, 95% CI 0.94-1.10, P = 0.66, I2 = 0%). Results for other subgroups of resistant pathogens or hospital-acquired infection were not available. Serious adverse events (SAEs) were significantly more common with ceftazidime/avibactam (RR 1.24, 95% CI 1.00-1.54, P = 0.05, I2 = 0%).
Conclusions: Ceftazidime/avibactam is clinically and microbiologically as effective as carbapenems for treatment of infections in a setting of ∼25% ESBL-carrying Enterobacteriaceae. Safety of the drug should be further evaluated owing to a higher rate of SAEs compared with carbapenems. Further studies should assess the drug's effectiveness in the treatment of carbapenemase-producing Enterobacteriaceae.
Methods: A systematic review and meta-analysis including RCTs evaluating ceftazidime/avibactam versus comparator for the treatment of any infection. Primary outcome was 30 day all-cause mortality. Subgroups of hospital-acquired infections and specific resistance phenotypes were planned.
Results: Seven publications (eight trials, 4093 patients) were included, reporting a baseline ∼25% of ESBL-carrying Enterobacteriaceae. No significant difference between ceftazidime/avibactam and comparator (mostly carbapenem) was demonstrated for 30 day all-cause mortality, late follow-up mortality and clinical response [relative risk (RR) 1.10, 95% CI 0.70-1.72, P = 0.69; RR 1.23, 95% CI 0.87-1.76, P = 0.25; RR 0.98, 95% CI 0.96-1.01, P = 0.21, respectively, without significant heterogeneity]. Higher microbiological response rate was demonstrated with ceftazidime/avibactam in patients with UTI (RR 1.14, 1.0-1.29, P = 0.05, I2 = 51%). No significant difference in clinical response was demonstrated for patients with ceftazidime-resistant pathogens (RR 1.02, 95% CI 0.94-1.10, P = 0.66, I2 = 0%). Results for other subgroups of resistant pathogens or hospital-acquired infection were not available. Serious adverse events (SAEs) were significantly more common with ceftazidime/avibactam (RR 1.24, 95% CI 1.00-1.54, P = 0.05, I2 = 0%).
Conclusions: Ceftazidime/avibactam is clinically and microbiologically as effective as carbapenems for treatment of infections in a setting of ∼25% ESBL-carrying Enterobacteriaceae. Safety of the drug should be further evaluated owing to a higher rate of SAEs compared with carbapenems. Further studies should assess the drug's effectiveness in the treatment of carbapenemase-producing Enterobacteriaceae.
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