Surveillance of Omadacycline Activity against Clinical Isolates from a Global Collection (North America, Europe, Latin America, Asia-Western Pacific), 2010-2011.
Antimicrob Agents Chemother
; 61(5)2017 05.
Article
em En
| MEDLINE
| ID: mdl-28223386
ABSTRACT
Omadacycline is a broad-spectrum aminomethylcycline in late-stage clinical development for the treatment of acute bacterial skin and skin structure infections and community-acquired pneumonia as an oral and an intravenous once-daily formulation. In this study, omadacycline and comparators were tested against 69,246 nonduplicate bacterial isolates collected prospectively during 2010 and 2011 from medical centers in Asia-Pacific (11,397 isolates), Europe (23,490 isolates), Latin America (8,038 isolates), and North America (26,321 isolates). Omadacycline was tested by broth microdilution following Clinical and Laboratory Standards Institute M07-A10 (2015) methods. A total of 99.9% of Staphylococcus aureus isolates were inhibited by ≤2 µg/ml of omadacycline (MIC50/90, 0.12/0.25 µg/ml), including 100.0% of methicillin-susceptible S. aureus isolates and 99.8% of methicillin-resistant S. aureus isolates. Omadacycline potencies were comparable for Streptococcus pneumoniae (MIC50/90, 0.06/0.06 µg/ml), viridans group streptococci (MIC50/90, 0.06/0.12 µg/ml), and beta-hemolytic streptococci (MIC50/90, 0.06/0.12 µg/ml) regardless of species and susceptibility to penicillin. Omadacycline was active against Enterobacteriaceae and was most active against Escherichia coli (MIC50/90, 0.5/2 µg/ml), Enterobacter aerogenes (MIC50/90, 2/4 µg/ml), Klebsiella oxytoca (MIC50/90, 1/4 µg/ml), and Citrobacter spp. (MIC50/90, 1/4 µg/ml). Omadacycline was active against Haemophilus influenzae (MIC50/90, 1/1 µg/ml) regardless of ß-lactamase status and against Moraxella catarrhalis (MIC50/90, 0.12/0.25 µg/ml). The potent activity of omadacycline against Gram-positive and Gram-negative bacteria indicates that omadacycline merits further study in serious infections in which multidrug resistance and mixed Gram-positive and Gram-negative infections may be a concern.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tetraciclinas
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Infecções Cutâneas Estafilocócicas
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Staphylococcus aureus Resistente à Meticilina
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Bactérias Gram-Negativas
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Antibacterianos
Tipo de estudo:
Guideline
/
Screening_studies
Limite:
Humans
País como assunto:
America do norte
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Asia
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Europa
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article