4.7 Article

High-Dose Daptomycin plus Fosfomycin Is Safe and Effective in Treating Methicillin-Susceptible and Methicillin-Resistant Staphylococcus aureus Endocarditis

Journal

ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
Volume 56, Issue 8, Pages 4511-4515

Publisher

AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.06449-11

Keywords

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Funding

  1. Ministerio de Sanidad y Consumo, Instituto de Salud Carlos III (Madrid, Spain)
  2. Spanish Network for Research in Infectious Diseases [REIPI RD06/0008]
  3. Fondo de Investigaciones Sanitarias (FIS
  4. Madrid, Spain) [FIS 080268, FIS 1101131]
  5. Fundacion Maximo Soriano Jimenez (Barcelona, Spain)
  6. Instituto de Salud Carlos III (Madrid, Spain)
  7. Departament de Salut de la Generalitat de Catalunya, Barcelona (Spain)
  8. Agencia Pedro Lain Entralgo (Madrid, Spain)
  9. Abbott
  10. Boehringer-Ingelheim
  11. Bristol-Myers Squibb
  12. Cubist
  13. Novartis
  14. GlaxoSmithKline
  15. Gilead Sciences
  16. Pfizer
  17. Roche
  18. Theravance
  19. Fundacion Carolina-BBVA (Madrid, Spain)

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We describe 3 patients with left-sided staphylococcal endocarditis (1 with methicillin-susceptible Staphylococcus aureus [MSSA] prosthetic aortic valve endocarditis and 2 with methicillin-resistant S. aureus [MRSA] native-valve endocarditis) who were successfully treated with high-dose intravenous daptomycin (10 mg/kg/day) plus fosfomycin (2 g every 6 h) for 6 weeks. This combination was tested in vitro against 7 MSSA, 5 MRSA, and 2 intermediately glycopeptide-resistant S. aureus isolates and proved to be synergistic against 11(79%) strains and bactericidal against 8 (57%) strains. This combination deserves further clinical study.

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