Journal Article

Oral pharmacokinetically enhanced co-amoxiclav 2000/125 mg, twice daily, compared with co-amoxiclav 875/125 mg, three times daily, in the treatment of community-acquired pneumonia in European adults

Javier Garau, Monique Twynholm, Elena Garcia-Mendez, Bartolome Siquier and Antonio Rivero

in Journal of Antimicrobial Chemotherapy

Published on behalf of British Society for Antimicrobial Chemotherapy

Volume 52, issue 5, pages 826-836
Published in print November 2003 | ISSN: 0305-7453
Published online November 2003 | e-ISSN: 1460-2091 | DOI: http://dx.doi.org/10.1093/jac/dkg458
Oral pharmacokinetically enhanced co-amoxiclav 2000/125 mg, twice daily, compared with co-amoxiclav 875/125 mg, three times daily, in the treatment of community-acquired pneumonia in European adults

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Objectives: Pharmacokinetically enhanced co-amoxiclav 2000/125 mg was designed to achieve high serum concentrations of amoxicillin over the 12 h dosing interval to eradicate Streptococcus pneumoniae with amoxicillin MICs of at least 4 mg/L.

Methods: This randomized, double-blind, double-dummy, multicentre study compared the efficacy and safety of oral co-amoxiclav 2000/125 mg twice daily versus co-amoxiclav 875/125 mg three times daily, for 7 or 10 days, in the treatment of community-acquired pneumonia (CAP).

Results: The per-protocol (PP) population at follow-up (Days 18–39) comprised 114 patients receiving co-amoxiclav 2000/125 mg and 116 receiving co-amoxiclav 875/125 mg. Clinical success at follow-up (primary efficacy endpoint) in the clinical PP population was 94.7% (108/114) for co-amoxiclav 2000/125 mg versus 88.8% (103/116) for co-amoxiclav 875/125 mg [treatment difference (TD) = 5.9%, 95% CI: 1.1, 13.0]. Bacteriological success in the bacteriology PP population at follow-up was 85.0% (17/20) for co-amoxiclav 2000/125 mg versus 77.3% (17/22) for co-amoxiclav 875/125 mg (TD = 7.7%, 95% CI: 15.8, 31.2). Penicillin-resistant S. pneumoniae (PRSP) were isolated in three patients (including two with bacteraemia) in the co-amoxiclav 2000/125 mg group (amoxicillin MICs 8 mg/L, penicillin MICs 4 mg/L) and one in the comparator group; all were clinical and bacteriological successes. Co-amoxiclav 2000/125 mg and co-amoxiclav 875/125 mg were associated with adverse events leading to withdrawal in 6.3% and 6.2% of patients, respectively.

Conclusions: Co-amoxiclav 2000/125 mg twice daily was at least as effective clinically as co-amoxiclav 875/125 mg three times daily in the treatment of CAP. Although few patients in this study had PRSP infection, 3/3 were successfully treated with co-amoxiclav 2000/125 mg.

Keywords: Keywords: Streptococcus pneumoniae, CAP, antimicrobials

Journal Article.  7136 words.  Illustrated.

Subjects: Medical Oncology ; Critical Care

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