Evidence map›Paper›PMID 21670184›Full record

ArticleAntimicrobial agents and chemotherapy2011

Efficacy of human simulated exposures of ceftaroline administered at 600 milligrams every 12 hours against phenotypically diverse Staphylococcus aureus isolates.

Rebecca A Keel, Jared L Crandon, David P Nicolau

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Systematic review of ceftaroline fosamil in the management of patients with methicillin-resistantEuropean respiratory review : an official journal of the European Respiratory Society · 2023
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Mechanisms of action and antimicrobial activity of ceftobiprole.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2019
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Ceftaroline fosamil: a brief clinical review.Infectious diseases and therapy · 2013
    Article
  17. Article
  18. Article
  19. Investigational antimicrobial agents of 2013.Clinical microbiology reviews · 2013
    Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Rebecca A KeelCenter for Anti-Infective Research and Development, Hartford Hospital, 80 Seymour Street, Hartford, CT 06102, USA.
Jared L Crandon
David P Nicolau

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ceftaroline exhibits bactericidal activity against Gram-positive pathogens, including methicillin-susceptible (MSSA) and methicillin-resistant (MRSA) Staphylococcus aureus, as well as common Gram-negative pathogens. This study evaluated the efficacy of human simulated exposures of ceftaroline against S. aureus in both the neutropenic and immunocompetent mouse thigh infection models. Twenty-six S. aureus isolates (4 MSSA, 22 MRSA) with ceftaroline MICs ranging from 0.125 to 4 μg/ml were collected. All isolates were tested in the neutropenic model and a subset of 13 MRSA isolates were tested in the immunocompetent model. Two hours after inoculation, a ceftaroline regimen that simulated the percentage of the dosing interval that free-drug concentrations remained above the MIC of the infecting organism (fT>MIC) of humans administered ceftaroline at 600 mg every 12 h (q12h) infused over 1 h was given. The change in log(10) CFU/ml after 24 h of treatment was analyzed relative to the 0- and 24-h controls for neutropenic and immunocompetent mice, respectively. The human simulated regimen resulted in efficacy against all isolates tested in both infection models. In the neutropenic model, a 0.95 to 3.28 log(10) CFU/ml reduction was observed when compared with the 0-h control, whereas for the immunocompetent model, all isolates obtained a >1 log(10) CFU/ml reduction (log(10) CFU/ml reduction range: 1.06 to 2.43) in bacterial density. Irrespective of immune competency, a reduction in bacterial density was observed at the highest MIC of 4 μg/ml (fT>MIC of 27.5%). Human simulated exposures of ceftaroline 600 mg q12h provided predictable efficacy against all tested S. aureus isolates in the mouse thigh model independent of immune status. These data support the clinical utility of ceftaroline against S. aureus, including MRSA, with MICs of ≤4 μg/ml.

Indexed as

AnimalsAnti-Bacterial AgentsCeftarolineCephalosporinsFemaleGenotypeHumansMethicillin-Resistant Staphylococcus aureusMiceMice, Inbred ICRMicrobial Sensitivity TestsPhenotypeStaphylococcal InfectionsStaphylococcus aureusThighAnti-Bacterial AgentsCeftarolineCephalosporins

Identifiers

PMID21670184
PMCPMC3165327

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.