The Journal of antimicrobial chemotherapy · 2005
Evaluation of the in vitro activity of NVP-LMB415 against clinical anaerobic isolates with emphasis on the Bacteroides fragilis group.
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Snydman David R, Jacobus Nilda V, McDermott Laura A
Аннотация
OBJECTIVES: To compare the in vitro activity of NVP-LMB415 (formerly referred to as NVP-PDF 713) with that of other agents with anti-anaerobe activity against clinical anaerobic isolates, with emphasis on the Bacteroides fragilis group.
METHODS: The MICs for 405 B. fragilis group and 102 Gram-positive anaerobic isolates were determined using NCCLS-recommended procedures. The activity of NVP-LMB415 was compared with that of cefoxitin, clindamycin, imipenem, garenoxacin, linezolid, moxifloxacin and tigecycline. Vancomycin was included in the evaluation of the Gram-positive organisms.
RESULTS: NVP-LMB415 showed excellent in vitro activity against all the species of the B. fragilis group isolates (MIC range < or = 0.03-0.5 mg/L and MIC(90) 0.5 mg/L). NVP-LMB415 was active against B. fragilis group strains resistant to beta-lactams, quinolones or clindamycin, and the MICs were much lower than those of newer agents such as linezolid, tigecycline and garenoxacin. The MICs of NVP-LMB415 ( > or = 4 mg/L) for Clostridium species were higher than the MICs for other anaerobes.
CONCLUSIONS: Given the frequency of isolation of anaerobic bacteria and their increasing resistance to all classes of antibiotics, NVP-LMB415 is an ideal agent for potential use against mixed infections caused by resistant anaerobic pathogens such as of B. fragilis and Gram-positive aerobic strains such as methicillin-resistant staphylococci, streptococci and enterococci.
METHODS: The MICs for 405 B. fragilis group and 102 Gram-positive anaerobic isolates were determined using NCCLS-recommended procedures. The activity of NVP-LMB415 was compared with that of cefoxitin, clindamycin, imipenem, garenoxacin, linezolid, moxifloxacin and tigecycline. Vancomycin was included in the evaluation of the Gram-positive organisms.
RESULTS: NVP-LMB415 showed excellent in vitro activity against all the species of the B. fragilis group isolates (MIC range < or = 0.03-0.5 mg/L and MIC(90) 0.5 mg/L). NVP-LMB415 was active against B. fragilis group strains resistant to beta-lactams, quinolones or clindamycin, and the MICs were much lower than those of newer agents such as linezolid, tigecycline and garenoxacin. The MICs of NVP-LMB415 ( > or = 4 mg/L) for Clostridium species were higher than the MICs for other anaerobes.
CONCLUSIONS: Given the frequency of isolation of anaerobic bacteria and their increasing resistance to all classes of antibiotics, NVP-LMB415 is an ideal agent for potential use against mixed infections caused by resistant anaerobic pathogens such as of B. fragilis and Gram-positive aerobic strains such as methicillin-resistant staphylococci, streptococci and enterococci.