TB Research

<i>In Vitro</i> and <i>In Vivo</i> Activities of Contezolid (MRX-I) against Mycobacterium tuberculosis

Shoen C, DeStefano M, Hafkin B, Cynamon M

Antimicrobial agents and chemotherapy · 2018-07

Abstract

The in vitro activity of contezolid (MRX-I) against clinical isolates of Mycobacterium tuberculosis was evaluated using a microtiter broth dilution assay. MRX-I was as effective as linezolid (LZD) in vitro MRX-I and LZD were subsequently studied in BALB/c mice infected intranasally with M. tuberculosis Erdman. MRX-I and LZD at 100 mg/kg significantly reduced the bacterial load in lungs compared to the untreated early and late controls.

MeSH terms

  • Lung
  • Animals
  • Mice, Inbred BALB C
  • Humans
  • Mice
  • Mycobacterium tuberculosis
  • Tuberculosis, Multidrug-Resistant
  • Disease Models, Animal
  • Isoniazid
  • Tetrazoles
  • Oxazolidinones
  • Pyridones
  • Antitubercular Agents
  • Microbial Sensitivity Tests
  • Drug Administration Schedule
  • Female
  • Bacterial Load
  • Linezolid