The FDA approval of Dalvance was based on two randomized, double-blind, double-dummy clinical trials of similar design (Trial 1 and Trial 2). The Intent-to-Treat (ITT) population included 1,312 randomized patients. Patients were treated for two weeks with either a two-dose regimen of intravenous Dalvance (1000 mg followed one week later by 500 mg) or intravenous vancomycin (1000 mg or 15 mg/kg every 12 hours, with the option to switch to oral linezolid after 3 days). Dalvance-treated patients with creatinine clearance of less than 30 mL/min received 750 mg followed one week later by 375 mg. The primary endpoint of these two ABSSSI trials was the clinical response rate where responders were defined as patients who had no increase from baseline in lesion area 48 to 72 hours after initiation of therapy, and had a temperature consistently at or below 37.6° C upon repeated measurement. The percentage of responders is as follows: Trial 1: Dalvance: 83.3% and Vancomycin/Linezolid: 81.8%; Trial 2: Dalvance: 76.8% and Vancomycin/Linezolid: 78.3%.