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  • Title: In vitro and in vivo antibacterial activities of SM-216601, a new broad-spectrum parenteral carbapenem.
    Author: Ueda Y, Kanazawa K, Eguchi K, Takemoto K, Eriguchi Y, Sunagawa M.
    Journal: Antimicrob Agents Chemother; 2005 Oct; 49(10):4185-96. PubMed ID: 16189097.
    Abstract:
    SM-216601 is a novel parenteral 1beta-methylcarbapenem. In agar dilution susceptibility testing, the MIC of SM-216601 for 90% of the methicillin-resistant Staphylococcus aureus (MRSA) strains tested (MIC(90)) was 2 microg/ml, which was comparable to those of vancomycin and linezolid. SM-216601 was also very potent against Enterococcus faecium, including vancomycin-resistant strains (MIC(90) = 8 microg/ml). SM-216601 exhibited potent activity against penicillin-resistant Streptococcus pneumoniae, ampicillin-resistant Haemophilus influenzae, Moraxella catarrhalis, Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis, with MIC(90)s of less than 0.5 microg/ml, and intermediate activity against Citrobacter freundii, Enterobacter cloacae, Serratia marcescens, and Pseudomonas aeruginosa. The therapeutic efficacy of SM-216601 against experimentally induced infections in mice caused by S. aureus, E. faecium, E. coli, and P. aeruginosa reflected its in vitro activity and plasma level. Thus, SM-216601 is a promising candidate for nosocomial bacterial infections caused by a wide range of gram-positive and gram-negative bacteria, including multiresistant pathogens.
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