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Activities of Ertapenem, a New Long-Acting Carbapenem, against Penicillin-Sensitive or -Resistant Pneumococci in Experimental Meningitis

By P. Cottagnoud, M. Pfister, M. Cottagnoud, F. Acosta and M. G. Täuber


The penetration of ertapenem, a new carbapenem with a long half-life, reached 7.1 and 2.4% into inflamed and noninflamed meninges, respectively. Ertapenem had excellent antibacterial activity in the treatment of experimental meningitis due to penicillin-sensitive and -resistant pneumococci, leading to a decrease of 0.69 ± 0.17 and 0.59 ± 0.22 log(10) CFU/ml · h, respectively, in the viable cell counts in the cerebrospinal fluid. The efficacy of ertapenem was comparable to that of standard regimens (ceftriaxone monotherapy against the penicillin-sensitive strain and ceftriaxone combined with vancomycin against the penicillin-resistant strain). In vitro, ertapenem in concentrations above the MIC was highly bactericidal against both strains. Even against a penicillin- and quinolone-resistant mutant, ertapenem had similar bactericidal activity in vitro

Topics: Experimental Therapeutics
Publisher: American Society for Microbiology
Year: 2003
DOI identifier: 10.1128/AAC.47.6.1943-1947.2003
OAI identifier:
Provided by: PubMed Central
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