Abstract |
The aim of the study was to examine the In vitro susceptibility of clinical isolates of respiratory pathogens to clofoctol compared with amoxicillin and erythromycin, and to characterize the pharmacokinetic/pharmacodynamic (PK/PD) relationships of clofoctol using a murine pneumonia infection model. Strains clinically isolated from patients between 2005 and 2009 were used to examine susceptibility: penicillin-susceptible Streptococcus pneumoniae, penicillin-resistant S. pneumoniae, Streptococcus pyogenes, methicillin-susceptible Staphylococcus aureus, methicillin-resistant S. aureus, and Haemophilus influenzae. The In vitro activity of clofoctol against clinical isolates has essentially remained unchanged over recent years. The MIC₅₀ and MIC₉₀ of clofoctol against penicillin-resistant S. pneumoniae are lower than that of amoxicillin and erythromycin. The area under curve/minimum inhibitory concentration (AUC/MIC) ratio is the PK/PD parameter that best correlates with in vivo clofoctol efficacy; the value of AUC/MIC required to achieve the maximum effect in this study was 75.5.
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Authors | Francesco Scaglione, Silvana Dugnani, Valeria Lucini, Marilou Pannacci, Luca Paraboni |
Journal | Journal of chemotherapy (Florence, Italy)
(J Chemother)
Vol. 24
Issue 4
Pg. 201-6
(Aug 2012)
ISSN: 1973-9478 [Electronic] England |
PMID | 23040683
(Publication Type: Journal Article)
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Chemical References |
- Anti-Bacterial Agents
- Chlorobenzenes
- Cresols
- clofoctol
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Topics |
- Animals
- Anti-Bacterial Agents
(blood, pharmacokinetics, pharmacology, therapeutic use)
- Chlorobenzenes
- Colony Count, Microbial
- Cresols
(blood, pharmacokinetics, pharmacology, therapeutic use)
- Dose-Response Relationship, Drug
- Female
- Haemophilus influenzae
(drug effects, isolation & purification)
- Humans
- Italy
- Lung
(drug effects, microbiology)
- Methicillin-Resistant Staphylococcus aureus
(drug effects, isolation & purification)
- Mice
- Mice, Inbred BALB C
- Microbial Sensitivity Tests
- Penicillin Resistance
- Pneumonia, Pneumococcal
(blood, drug therapy, microbiology)
- Specific Pathogen-Free Organisms
- Staphylococcus aureus
(drug effects, isolation & purification)
- Streptococcus pneumoniae
(drug effects, isolation & purification, metabolism)
- Streptococcus pyogenes
(drug effects, isolation & purification)
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