4.7 Article

Avibactam Restores the Susceptibility of Clinical Isolates of Stenotrophomonas maltophilia to Aztreonam

Journal

ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
Volume 61, Issue 10, Pages -

Publisher

AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.00777-17

Keywords

aztreonam; S. maltophilia; avibactam

Funding

  1. Cleveland Department of Veterans Affairs
  2. Veterans Affairs Merit Review Program from the U.S. Department of Veterans Affairs Biomedical Laboratory Research and Development Service of the VA Office of Research and Development [BX002872, BX001974]
  3. Geriatric Research Education and Clinical Center VISN [10]
  4. National Institute of Allergy and Infectious Diseases of the National Institutes of Health [R21AI114508, R01AI100560, R01AI063517, R01AI072219]
  5. Cystic Fibrosis Foundation

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Stenotrophomonas maltophilia is an emerging opportunistic pathogen, classified by the World Health Organization as one of the leading multidrug-resistant organisms in hospital settings. The need to discover novel compounds and/or combination therapies for S. maltophilia is urgent. We demonstrate the in vitro efficacy of aztreonam-avibactam (ATM-AVI) against S. maltophilia and kinetically characterize the inhibition of the L2 beta-lactamase by avibactam. ATM-AVI overcomes aztreonam resistance in selected clinical strains of S. maltophilia, addressing an unmet medical need.

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