Pharmaceutics (Dec 2022)

Pharmacokinetics and Pharmacodynamics (PK/PD) of Corallopyronin A against Methicillin-Resistant <i>Staphylococcus aureus</i>

  • Katharina Rox,
  • Tim Becker,
  • Andrea Schiefer,
  • Miriam Grosse,
  • Alexandra Ehrens,
  • Rolf Jansen,
  • Tilman Aden,
  • Stefan Kehraus,
  • Gabriele M. König,
  • Anna K. Krome,
  • Marc P. Hübner,
  • Karl G. Wagner,
  • Marc Stadler,
  • Kenneth Pfarr,
  • Achim Hoerauf

DOI
https://doi.org/10.3390/pharmaceutics15010131
Journal volume & issue
Vol. 15, no. 1
p. 131

Abstract

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Methicillin-resistant Staphylococcus aureus (MRSA) is a World Health Organization’s high priority pathogen organism, with an estimated > 100,000 deaths worldwide in 2019. Thus, there is an unmet medical need for novel and resistance-breaking anti-infectives. The natural product Co-rallopyronin A (CorA), currently in preclinical development for filariasis, is efficacious against MRSA in vitro. In this study, we evaluated the pharmacokinetics of CorA after dosing in mice. Furthermore, we determined compound concentrations in target compartments, such as lung, kidney and thigh tissue, using LC-MS/MS. Based on the pharmacokinetic results, we evaluated the pharmacodynamic profile of CorA using the standard neutropenic thigh and lung infection models. We demonstrate that CorA is effective in both standard pharmacodynamic models. In addition to reaching effective levels in the lung and muscle, CorA was detected at high levels in the thigh bone. The data presented herein encourage the further exploration of the additional CorA indications treatment of MRSA- and methicillin-sensitive S. aureus- (MSSA) related infections.

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