期刊
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
卷 61, 期 6, 页码 -出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.02095-16
关键词
ABSSSI; phase 2 study; antibacterial agent; antimicrobial safety; efficacy; gepotidacin; skin infections
资金
- GlaxoSmithKline
- Office of the Assistant Secretary for Preparedness and Response, Biomedical Advanced Research and Development Authority, under OTA [HHSO100201300011C]
Gepotidacin is a novel, first-in-class, triazaacenaphthylene antibacterial agent which has in vitro activity against causative pathogens of acute bacterial skin and skin structure infections (ABSSSIs). This phase 2, randomized, 2-part, multicenter, dose-ranging, response-adaptive study with optional intravenous-oral switch evaluated the efficacy and safety of gepotidacin for the treatment of Gram-positive ABSSSIs in 122 adult patients in the United States. The study had a double-blind phase (part 1; intravenous [750 mg or 1,000 mg every 12 h {q12h}]) and an open-label phase (part 2; intravenous [750 mg q12h, 1,000 mg q12h, or 1,000 q8h]). The primary end-point was a composite of efficacy and safety which consisted of the early cure rate and the withdrawal rate due to drug-related adverse events and utilized a clinical utility index for dose selection. At the early efficacy visit (48 to 72 h after the first dose), the 750-mg q12h and 1,000-mg q8h groups met prespecified success criteria for clinical utility in terms of efficacy and safety; however, the 1,000-mg q12h group did not meet these criteria due to observed lower efficacy rates. The most frequently reported adverse events were nausea (20%) and diarrhea (13%). These encouraging phase 2 results demonstrate the potential for gepotidacin to meet the medical need for novel antibacterial agents to treat ABSSSIs due to drug-resistant pathogens through a unique mechanism of action. (This study has been registered at ClinicalTrials. gov under registration no. NCT02045797.)
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