ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2025
Rates of Resistance to Ceftazidime-Avibactam and Ceftolozane-Tazobactam Among Patients Treated for Multidrug-Resistant Pseudomonas aeruginosa Bacteremia or Pneumonia.
Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
23 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Comparison of Ceftolozane-Tazobactam and Ceftazidime-Avibactam in the Treatment of Multidrug-Resistant/Difficult-to-Treat Resistant Pseudomonas aeruginosa Infections: A Systematic Review and Meta-analysis.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026Pooled it
- A systematic literature review and (network) meta-analysis of the effectiveness of ceftolozane/tazobactam versus aminoglycosides/polymyxins and ceftazidime/avibactam for treating adult patients with multidrug-resistantAntimicrobial agents and chemotherapy · 2026Pooled it
- Variable phage susceptibility ofbioRxiv : the preprint server for biology · 2026Article
- Long-term trends in ceftolozane-tazobactam susceptibility among gram-negative pathogens in the United States: a nine-year SMART analysis (2016-2024).JAC-antimicrobial resistance · 2026Article
- Comparative efficacy of ceftolozane-tazobactam versus ceftazidime-avibactam forAnnals of medicine and surgery (2012) · 2026Article
- Challenges and opportunities in the management of severe pneumonia. Key concepts from the Seventh Annual Meeting of Spanish Experts 2025.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2026Review
- Ceftazidime-avibactam resistance evolution inAntimicrobial agents and chemotherapy · 2026Article
- Pharmacodynamic evaluation of BRII-693, a next-generation synthetic macrocyclic peptide antibiotic, in the neutropenic mouse thigh and lung infection models against gram-negative pathogens.Antimicrobial agents and chemotherapy · 2026Article
- Landscape of resistance to ceftolozane/tazobactam and ceftazidime/avibactam in strains of Pseudomonas aeruginosa: a genomic approach in strains without selection pressure in a tertiary-care paediatric hospital in Mexico.BMC infectious diseases · 2026Article
- Evaluation of Phenotypic and Genotypic Susceptibility Testing Methods for Newer β-lactam/β-lactamase Inhibitor Combinations in Multidrug Resistant Pseudomonas aeruginosa.The Journal of infectious diseases · 2026Article
- Mechanisms ofMedicina (Kaunas, Lithuania) · 2026Review
- New Antibiotics Against Multidrug-Resistant Gram-Negative Bacteria in Lung Transplantation: Clinical Evidence, Safety, and PK/PD Properties.Transplant international : official journal of the European Society for Organ Transplantation · 2026Review
- TheFrontiers in cellular and infection microbiology · 2026Article
- Genetic Analysis of Virulence and β-Lactamase Determinants Related to β-Lactamase Inhibitors inAntibiotics (Basel, Switzerland) · 2025Article
- Current and future options for the treatment of serious infections due to carbapenem-resistantClinical microbiology reviews · 2025Review
- Effectiveness of imipenem-relebactam for multidrug-resistantAntimicrobial agents and chemotherapy · 2025Observational
- Therapeutic management of health care-associated pneumonia.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2025Review
- Invasomes and Nanostructured Lipid Carriers for Targeted Delivery of Ceftazidime Combined with N-Acetylcysteine: A Novel Approach to TreatPharmaceutics · 2025Article
- Assessment of in vitro antimicrobial activities of ceftolozane/tazobactam and ceftazidime/avibactam against carbapenem-resistant Pseudomonas aeruginosa clinical isolates.BMC infectious diseases · 2025Article
- Restoring ceftolozane susceptibility: a role for diazabicyclooctane β-lactamase inhibitors?Antimicrobial agents and chemotherapy · 2025Article
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
Among consecutive patients with multidrug-resistant Pseudomonas aeruginosa bacteremia or pneumonia we found those treated with ceftazidime-avibactam were more likely to develop resistance (defined as ≥4-fold increased MIC) than those treated with ceftolozane-tazobactam (40% vs 10%; P = .002). Ceftazidime-avibactam resistance was associated with new mutations in ampC and efflux regulatory pathways.
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