In vitro activity of sulbactam-durlobactam against colistin-resistant and/or cefiderocol-non-susceptible, carbapenem-resistant Acinetobacter baumannii collected in U.S. hospitals

  • Alina Iovleva
  • , Christi L. McElheny
  • , Erin L. Fowler
  • , Eric Cober
  • , Erica S. Herc
  • , Cesar A. Arias
  • , Carol Hill
  • , Keri Baum
  • , Vance G. Fowler
  • , Henry F. Chambers
  • , Kerryl E. Greenwood-Quaintance
  • , Robin Patel
  • , David van Duin
  • , Robert A. Bonomo
  • , Yohei Doi

Research output: Contribution to journalArticlepeer-review

Abstract

The activity of a novel β-lactamase inhibitor combination, sulbactam-durlobactam (SUL-DUR), was tested against 87 colistin-resistant and/or cefiderocol-non-susceptible carbapenem-resistant Acinetobacter baumannii clinical isolates collected from U.S. hospitals between 2017 and 2019. Among them, 89% and 97% were susceptible to SUL-DUR and imipenem plus SUL-DUR, with MIC50/MIC90 values of 2 µg/mL/8 µg/mL and 1 µg/mL/4 µg/mL, respectively. The presence of amino acid substitutions in penicillin-binding protein 3, including previously reported A515V or T526S, was associated with SUL-DUR non-susceptibility.

Original languageEnglish
JournalAntimicrobial agents and chemotherapy
Volume68
Issue number3
DOIs
Publication statusPublished - 03-2024
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Pharmacology (medical)
  • Infectious Diseases

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