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Antistaphylococcal activity of TD-1792, a multivalent glycopeptide-cephalosporin antibiotic
Johanne Blais1, Stacey R Lewis, Kevin M Krause
1Theravance, Inc, South San Francisco, California, USA.
Abstract:
TD-1792 is a new multivalent glycopeptide-cephalosporin antibiotic with potent activity against Gram-positive bacteria. The in vitro activity of TD-1792 was tested against 527 Staphylococcus aureus isolates, including multidrug-resistant isolates. TD-1792 was highly active against methicillin-susceptible S. aureus (MIC(90), 0.015 μg/ml), methicillin-resistant S. aureus, and heterogeneous vancomycin-intermediate S. aureus (MIC(90), 0.03 μg/ml). Time-kill studies demonstrated the potent bactericidal activity of TD-1792 at concentrations of ≤ 0.12 μg/ml. A postantibiotic effect of >2 h was observed after exposure to TD-1792.
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