Dec 21, 2016

Activities of Omadacycline and Comparator Agents against Staphylococcus aureus Isolates from a Surveillance Program Conducted in North America and Europe

Antimicrobial Agents and Chemotherapy
Michael A PfallerRobert K Flamm

Abstract

Omadacycline is a new broad-spectrum aminomethylcycline in late-stage clinical development for acute bacterial skin and skin structure infections and community-acquired bacterial pneumonia as a once-daily formulation taken orally or intravenously. In this study, omadacycline and comparator agents were tested against 502 isolates of Staphylococcus aureus selected from a 2014 global surveillance program, and the results were compared with those for 7,740 isolates from a 2010 surveillance program. For the 2014 isolates, testing was completed on 252 isolates from Europe and 250 isolates from North America. Each set of isolates was composed of ∼100 hospital-acquired methicillin-resistant Staphylococcus aureus (HA-MRSA) isolates (isolated >48 h after hospital admission), 100 community-acquired MRSA (CA-MRSA) isolates (isolated <48 h after hospital admission), and 50 methicillin-susceptible S. aureus (MSSA) isolates. The omadacycline MIC50 and MIC90 for all S. aureus collected during 2014 was 0.12 and 0.12 μg/ml, respectively. The MIC90 values were identical for MRSA, HA-MRSA, and CA-MRSA (0.12 μg/ml). The MIC90 values for isolates from 2010 for S. aureus, MRSA, and CA-MRSA were 0.25 μg/ml (0.5 μg/ml for HA-MRSA; 87.8% were at ≤0.25 μ...Continue Reading

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Mentioned in this Paper

Vancomycin
Tetracycline Antibiotics
Skin Diseases, Bacterial
Study
Tetracyclines
AB-Vancomycin
Doxycycline
Erythromycin
Intravenous
Methicillin resistant Staphylococcus aureus (organism)

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