Cefditoren's Effectiveness Against Penicillin-Resistant S. pneumoniae
Author Information
Author(s): Sevillano David, Aguilar Lorenzo, Alou Luis, Giménez María-José, González Natalia, Torrico Martha, Cafini Fabio, Fenoll Asunción, Coronel Pilar, Prieto José
Primary Institution: Universidad Complutense, Madrid, Spain
Hypothesis
Does cefditoren maintain antibacterial activity against penicillin-resistant S. pneumoniae despite high protein binding?
Conclusion
Cefditoren can effectively reduce bacterial counts of penicillin-resistant S. pneumoniae even with high protein binding.
Supporting Evidence
- Cefditoren showed bactericidal activity against strains with MICs of 0.25 µg/ml.
- High protein binding (87.1%) did not prevent cefditoren from being effective.
- Strains with higher MICs still showed significant reductions in bacterial counts.
Takeaway
Cefditoren, an antibiotic, can still work against some tough bacteria even when a lot of it is stuck to proteins in the blood.
Methodology
The study simulated cefditoren's effects on six strains of S. pneumoniae using a pharmacodynamic model with human serum.
Limitations
The study was conducted in vitro, which may not fully replicate in vivo conditions.
Digital Object Identifier (DOI)
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