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Potency and spectrum of garenoxacin tested against an international collection of skin and soft tissue infection pathogens: report from the SENTRY antimicrobial surveillance program (1999-2004).
Diagn Microbiol Infect Dis. 2007 May; 58(1):19-26.DM

Abstract

The spectrum and potency of garenoxacin, a novel des-F(6)-quinolone, against a large international collection (11723 strains) of Gram-positive and Gram-negative bacterial pathogens that cause skin and soft tissue infections (SSTIs) were evaluated for the years 1999 to 2004. Consecutive nonduplicate bacterial isolates were collected from patients with documented community-acquired or nosocomial SSTI in >70 medical centers participating in the SENTRY Antimicrobial Surveillance Program in North America (37.4%), Europe (26.7%), Latin America (16.7%), and the Asia-Pacific region (19.2%). All isolates were tested using the reference broth microdilution methods against garenoxacin, ciprofloxacin, levofloxacin, gatifloxacin, moxifloxacin, and representative comparator agents used for the empiric or directed therapy for SSTI. Ranking pathogens producing SSTI during these years included Staphylococcus aureus (42.8%), Pseudomonas aeruginosa (11.1%), Escherichia coli (9.0%), Enterococcus spp. (7.3%), Klebsiella spp. (4.8%), Enterobacter spp. (4.7%), beta-hemolytic streptococci (4.3%), coagulase-negative staphylococci (4.0%), Proteus mirabilis (2.5%), and Acinetobacter spp. (2.1%). Garenoxacin was the most potent agent tested against S. aureus and was at least 2-fold more active than gatifloxacin (MIC(50), 0.06 mg/L) and 8-fold more active than levofloxacin (MIC(50), 0.25 mg/L). Furthermore, garenoxacin was 2- to 8-fold more potent than the fluoroquinolones against beta-hemolytic and viridans group streptococci, as well as up to 4-fold more active against enterococci. Garenoxacin was largely comparable with the comparator fluoroquinolones against E. coli, Klebsiella spp., and Acinetobacter spp., but it is less active than these agents against P. aeruginosa. In summary, garenoxacin was documented to be the most potent quinolone when tested against key Gram-positive pathogens (S. aureus, beta-hemolytic streptococci, viridans group streptococci, and enterococci) and was similar in activity to these agents against other species (Enterobacteriaceae and Acinetobacter spp.). These in vitro data suggest that garenoxacin warrants further clinical studies in SSTI, especially against staphylococci and streptococcal pathogens.

Authors+Show Affiliations

JMI Laboratories, North Liberty, IA 52317, USA. thomas-fritsche@jmilabs.comNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17383139

Citation

Fritsche, Thomas R., et al. "Potency and Spectrum of Garenoxacin Tested Against an International Collection of Skin and Soft Tissue Infection Pathogens: Report From the SENTRY Antimicrobial Surveillance Program (1999-2004)." Diagnostic Microbiology and Infectious Disease, vol. 58, no. 1, 2007, pp. 19-26.
Fritsche TR, Sader HS, Jones RN. Potency and spectrum of garenoxacin tested against an international collection of skin and soft tissue infection pathogens: report from the SENTRY antimicrobial surveillance program (1999-2004). Diagn Microbiol Infect Dis. 2007;58(1):19-26.
Fritsche, T. R., Sader, H. S., & Jones, R. N. (2007). Potency and spectrum of garenoxacin tested against an international collection of skin and soft tissue infection pathogens: report from the SENTRY antimicrobial surveillance program (1999-2004). Diagnostic Microbiology and Infectious Disease, 58(1), 19-26.
Fritsche TR, Sader HS, Jones RN. Potency and Spectrum of Garenoxacin Tested Against an International Collection of Skin and Soft Tissue Infection Pathogens: Report From the SENTRY Antimicrobial Surveillance Program (1999-2004). Diagn Microbiol Infect Dis. 2007;58(1):19-26. PubMed PMID: 17383139.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Potency and spectrum of garenoxacin tested against an international collection of skin and soft tissue infection pathogens: report from the SENTRY antimicrobial surveillance program (1999-2004). AU - Fritsche,Thomas R, AU - Sader,Helio S, AU - Jones,Ronald N, Y1 - 2007/03/23/ PY - 2006/12/08/received PY - 2006/12/08/accepted PY - 2007/3/27/pubmed PY - 2007/6/30/medline PY - 2007/3/27/entrez SP - 19 EP - 26 JF - Diagnostic microbiology and infectious disease JO - Diagn Microbiol Infect Dis VL - 58 IS - 1 N2 - The spectrum and potency of garenoxacin, a novel des-F(6)-quinolone, against a large international collection (11723 strains) of Gram-positive and Gram-negative bacterial pathogens that cause skin and soft tissue infections (SSTIs) were evaluated for the years 1999 to 2004. Consecutive nonduplicate bacterial isolates were collected from patients with documented community-acquired or nosocomial SSTI in >70 medical centers participating in the SENTRY Antimicrobial Surveillance Program in North America (37.4%), Europe (26.7%), Latin America (16.7%), and the Asia-Pacific region (19.2%). All isolates were tested using the reference broth microdilution methods against garenoxacin, ciprofloxacin, levofloxacin, gatifloxacin, moxifloxacin, and representative comparator agents used for the empiric or directed therapy for SSTI. Ranking pathogens producing SSTI during these years included Staphylococcus aureus (42.8%), Pseudomonas aeruginosa (11.1%), Escherichia coli (9.0%), Enterococcus spp. (7.3%), Klebsiella spp. (4.8%), Enterobacter spp. (4.7%), beta-hemolytic streptococci (4.3%), coagulase-negative staphylococci (4.0%), Proteus mirabilis (2.5%), and Acinetobacter spp. (2.1%). Garenoxacin was the most potent agent tested against S. aureus and was at least 2-fold more active than gatifloxacin (MIC(50), 0.06 mg/L) and 8-fold more active than levofloxacin (MIC(50), 0.25 mg/L). Furthermore, garenoxacin was 2- to 8-fold more potent than the fluoroquinolones against beta-hemolytic and viridans group streptococci, as well as up to 4-fold more active against enterococci. Garenoxacin was largely comparable with the comparator fluoroquinolones against E. coli, Klebsiella spp., and Acinetobacter spp., but it is less active than these agents against P. aeruginosa. In summary, garenoxacin was documented to be the most potent quinolone when tested against key Gram-positive pathogens (S. aureus, beta-hemolytic streptococci, viridans group streptococci, and enterococci) and was similar in activity to these agents against other species (Enterobacteriaceae and Acinetobacter spp.). These in vitro data suggest that garenoxacin warrants further clinical studies in SSTI, especially against staphylococci and streptococcal pathogens. SN - 0732-8893 UR - https://www.unboundmedicine.com/medline/citation/17383139/Potency_and_spectrum_of_garenoxacin_tested_against_an_international_collection_of_skin_and_soft_tissue_infection_pathogens:_report_from_the_SENTRY_antimicrobial_surveillance_program__1999_2004__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0732-8893(06)00515-3 DB - PRIME DP - Unbound Medicine ER -