Abstract

Dalbavancin is a semisynthetic lipoglycopeptide approved for the treatment of acute skin and soft tissue infections due to Gram-positive microorganisms susceptible to this antimicrobial agent. The FDA (Food and Drug Administration) and the EUCAST (European Committee on Antimicrobial Susceptibility Testing) have established clinical breakpoints to interpret the results of the antibiogram (expressed as MIC [minimum inhibitory concentration]) with approved doses (1g intravenously [IV] followed by 0.5g IV at day 8 or 1.5g IV in a single dose). The EUCAST has also determined PK/PD (pharmacokinetic/pharmacodynamic) breakpoints —susceptible, ≤ 0.25mg/L; resistant, > 0.25mg/L—, established recommendations for in vitro susceptibility testing (addition of polysorbate-80 to the growth media) and subrogate values based on the vancomycin-susceptible category to interpret dalbavancin susceptibility in the absence of in vitro study of this antimicrobial.

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