Activities of dalbavancin in vitro and in a rabbit model of experimental endocarditis due to Staphylococcus aureus with or without reduced susceptibility to vancomycin and teicoplanin.

For the treatment of rabbit endocarditis, dalbavancin given once daily (10 mg/kg of body weight for 4 days) or as a single 40-mg/kg dose was active against Staphylococcus aureus with or without reduced susceptibility to glycopeptides, as expected from its good in vitro activity, even in broth supplemented with 90% serum and given its prolonged elimination half-life.