Cited by 1,459Infective Endocarditis Diagnosis and ManagementAntimicrobial Resistance in StaphylococcusAntibiotics Pharmacokinetics and Efficacy

Daptomycin versus Standard Therapy for Bacteremia and Endocarditis Caused by Staphylococcus aureus

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Fowler, Vance G., Boucher, Helen W., Corey, G. Ralph, Abrutyn, Elias, Karchmer, Adolf W., Rupp, Mark E., Levine, Donald P., Chambers, Henry F. +18 more·2006·New England Journal of Medicine

Abstract

BACKGROUND: Alternative therapies for Staphylococcus aureus bacteremia and endocarditis are needed. METHODS: We randomly assigned 124 patients with S. aureus bacteremia with or without endocarditis to receive 6 mg of daptomycin intravenously per kilogram of body weight daily and 122 to receive initial low-dose gentamicin plus either an antistaphylococcal penicillin or vancomycin. The primary efficacy end point was treatment success 42 days after the end of therapy. RESULTS: Forty-two days after the end of therapy in the modified intention-to-treat analysis, a successful outcome was documented for 53 of 120 patients who received daptomycin as compared with 48 of 115 patients who received standard therapy (44.2 percent vs. 41.7 percent; absolute difference, 2.4 percent; 95 percent confidence interval, -10.2 to 15.1 percent). Our results met prespecified criteria for the noninferiority of daptomycin. The success rates were similar in subgroups of patients with complicated bacteremia, right-sided endocarditis, and methicillin-resistant S. aureus. Daptomycin therapy was associated with a higher rate of microbiologic failure than was standard therapy (19 vs. 11 patients, P=0.17). In 6 of the 19 patients with microbiologic failure in the daptomycin group, isolates with reduced susceptibility to daptomycin emerged; similarly, a reduced susceptibility to vancomycin was noted in isolates from patients treated with vancomycin. As compared with daptomycin therapy, standard therapy was associated with a nonsignificantly higher rate of adverse events that led to treatment failure due to the discontinuation of therapy (17 vs. 8, P=0.06). Clinically significant renal dysfunction occurred in 11.0 percent of patients who received daptomycin and in 26.3 percent of patients who received standard therapy (P=0.004). CONCLUSIONS: Daptomycin (6 mg per kilogram daily) is not inferior to standard therapy for S. aureus bacteremia and right-sided endocarditis. (ClinicalTrials.gov number, NCT00093067 [ClinicalTrials.gov].).

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  1. [5]5. Fowler VG Jr, Kong LK, Corey GR, et al. Recurrent Staphylococcus aureus bactere- mia: pulsed-field gel electrophoresis find- ings in 29 patients. J Infect Dis 1999;179: 1157-61.
  2. [17]17. mycin -United States, 2002. MMWR Morb Mortal Wkly Rep 2002;51:565-7. Vancomycin-resistant Staphylococcus au- reus -Pennsylvania, 2002. MMWR Morb Mortal Wkly Rep 2002;51:902.

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Authors
Fowler, V. G., Boucher, H. W., Corey, G. R., Abrutyn, E., Karchmer, A. W., Rupp, M. E., Levine, D. P., Chambers, H. F., Tally, F. P., Vigliani, G. A., Cabell, C. H., Link, A. S., DeMeyer, I., Filler, S. G., Zervos, M., Cook, P., Parsonnet, J., Bernstein, J. M., Price, C. S., Forrest, G. N., Fätkenheuer, G., Gareca, M., Rehm, S. J., Brodt, H. R., Tice, A., & Cosgrove, S. E.
Affiliations
  • Duke Medical Center (US)
  • Tufts Medical Center (US)
  • Beth Israel Deaconess Medical Center (US)
  • University of Nebraska Medical Center (US)
  • Wayne State University (US)
  • San Francisco General Hospital (US)
  • Cubist Pharmaceuticals (United States) (US)
  • Novant Health Forsyth Medical Center (US)
  • Onze Lieve Vrouwziekenhuis Hospital (BE)
  • Harbor–UCLA Medical Center (US)
  • Corewell Health William Beaumont University Hospital (US)
  • East Carolina University (US)
  • Dartmouth–Hitchcock Medical Center (US)
  • Dayton VA Medical Center (US)
  • Denver Health Medical Center (US)
  • University of Maryland, Baltimore (US)
  • University of Cologne (DE)
  • Lehigh Valley Hospital (US)
  • Cleveland Clinic (US)
  • Goethe University Frankfurt (DE)
  • University of Hawaiʻi at Mānoa (US)
  • Johns Hopkins University (US)
Venue
New England Journal of Medicine
Published
2006-08-17
Volume
355
Issue
7
Pages
653-665
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2002249283
Cited by
1,459
References
26
Citations by year
2026: 24 · 2025: 36 · 2024: 40 · 2023: 56 · 2022: 49 · 2021: 47 · 2020: 56 · 2019: 61 · 2018: 53 · 2017: 50 · 2016: 65 · 2015: 89 · 2014: 76 · 2013: 104 · 2012: 95
FWCI
86.13
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Amgen
  • Pfizer
  • GlaxoSmithKline
Topics
  • Health Sciences › Medicine › Epidemiology › Infective Endocarditis Diagnosis and Management
  • Health Sciences › Medicine › Infectious Diseases › Antimicrobial Resistance in Staphylococcus
  • Health Sciences › Medicine › Pharmacology › Antibiotics Pharmacokinetics and Efficacy
Keywords
daptomycin, Staphylococcus aureus bacteremia, infective endocarditis, right-sided endocarditis, methicillin-resistant Staphylococcus aureus, gentamicin, vancomycin, non-inferiority, vancomycin resistance, renal dysfunction
MeSH terms
Adult, Aged, Aged, 80 and over, Anti-Bacterial Agents, Endocarditis, Bacterial, Female, Gentamicins, Humans, Male, Middle Aged, Penicillins, Staphylococcal Infections, Staphylococcus aureus, Vancomycin, Methicillin Resistance, Bacteremia, Treatment Outcome, Daptomycin

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