ArticleAntimicrobial agents and chemotherapy2016
Pharmacodynamics of Ceftolozane Combined with Tazobactam against Enterobacteriaceae in a Neutropenic Mouse Thigh Model.
Article in Antimicrobial agents and chemotherapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.
- What are the optimal pharmacokinetic/pharmacodynamic targets for β-lactamase inhibitors? A systematic review.The Journal of antimicrobial chemotherapy · 2024Pooled it
- Intrapulmonary penetration of ceftolozane/tazobactam and ceftazidime/avibactam administered by continuous infusion in critically ill patients with nosocomial pneumonia: a randomized pharmacokinetic trial.Critical care (London, England) · 2026Trial
- Probability of Target Attainment Analyses to Inform Ceftolozane/Tazobactam Dosing Regimens for Patients With Hospital-Acquired or Ventilator-Associated Bacterial Pneumonia and End-Stage Renal Disease Receiving Intermittent Hemodialysis.Journal of clinical pharmacology · 2023Trial
- Ceftolozane/tazobactam probability of target attainment and outcomes in participants with augmented renal clearance from the randomized phase 3 ASPECT-NP trial.Critical care (London, England) · 2021Trial
- Outcomes in Participants with Renal Impairment from a Phase 3 Clinical Trial for Ceftolozane/Tazobactam Treatment of Nosocomial Pneumonia (ASPECT-NP).Antimicrobial agents and chemotherapy · 2020Trial
- Preclinical Pharmacokinetics and Pharmacodynamics of Antibiotic Adjuvants.ACS infectious diseases · 2026Review
- Pharmacodynamic studies of taniborbactam (VNRX-5133) combined with cefepime against β-lactamase-producing Gram-negative bacteria in a neutropenic murine thigh infection model.The Journal of antimicrobial chemotherapy · 2026Article
- Drug-resistant gram-negative bacterial infections in children in the Oceania region: review of the epidemiology, antimicrobial availability, treatment, clinical trial and pharmacokinetic data, and key evidence gaps.The Lancet regional health. Western Pacific · 2025Review
- Translational PK/PD for the Development of Novel Antibiotics-A Drug Developer's Perspective.Antibiotics (Basel, Switzerland) · 2024Review
- Article
- In vitro and in vivo evaluation of two combined β-lactamase inhibitors against carbapenem-resistant Acinetobacter baumannii.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2023Article
- Development of an optimized and practical pharmacokinetics/pharmacodynamics analysis method for aztreonam/nacubactam against carbapenemase-producing K. pneumoniae.The Journal of antimicrobial chemotherapy · 2023Article
- Individualized antibiotic dosage regimens for patients with augmented renal clearance.Frontiers in pharmacology · 2023Review
- SigmoidAntimicrobial agents and chemotherapy · 2021Article
- Pharmacokinetics and pharmacodynamics of enrofloxacin treatment of Escherichia coli in a murine thigh infection modeling.BMC veterinary research · 2021Article
- Intrapulmonary Pharmacokinetics of Cefepime and Enmetazobactam in Healthy Volunteers: Towards New Treatments for Nosocomial Pneumonia.Antimicrobial agents and chemotherapy · 2020Article
- Lung penetration, bronchopulmonary pharmacokinetic/pharmacodynamic profile and safety of 3 g of ceftolozane/tazobactam administered to ventilated, critically ill patients with pneumonia.The Journal of antimicrobial chemotherapy · 2020Article
- Pharmacokinetics-Pharmacodynamics of Enmetazobactam Combined with Cefepime in a Neutropenic Murine Thigh Infection Model.Antimicrobial agents and chemotherapy · 2020Article
- Ceftolozane-Tazobactam Population Pharmacokinetics and Dose Selection for Further Clinical Evaluation in Pediatric Patients with Complicated Urinary Tract or Complicated Intra-abdominal Infections.Antimicrobial agents and chemotherapy · 2019Article
- Pharmacodynamics of Cefepime Combined with Tazobactam against Clinically Relevant Enterobacteriaceae in a Neutropenic Mouse Thigh Model.Antimicrobial agents and chemotherapy · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ceftolozane is a new broad-spectrum cephalosporin and is combined with tazobactam to broaden the activity of ceftolozane against strains producing extended-spectrum beta-lactamases (ESBLs). We determined the pharmacodynamics (PD) of the combination in the neutropenic mouse thigh model to determine the optimal exposure of tazobactam. Treatment of CD-1 neutropenic mice was started 2 h after infection with ceftolozane every 2 h (q2h) alone or in combination with tazobactam at different dosing frequencies for 24 h, and the number of CFU in the thighs was determined before and after treatment. The maximum effect model was fit to the dose-response and the pharmacokinetic/PD index (PDI)-response to determine the PDI values for ceftolozane alone and ceftolozane in combination with tazobactam resulting in a static effect and a 1-log kill. The effect of tazobactam was dependent on the percentage of time that the free drug concentration remained above the concentration threshold (percent [Formula: see text]), whereby dosing q2h was more efficacious than dosing every 8 h (q8h), reducing the tazobactam daily dose by a factor 6.9 to 59.0 (n = 3 strains) to obtain a static effect. Using R
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.