parC Variants in Mycoplasma genitalium: Trends over Time and Association with Moxifloxacin Failure

Gerald L. Murray, Kaveesha Bodiyabadu, Lenka A. Vodstrcil, Dorothy A. Machalek, Jennifer Danielewski, Erica L. Plummer, Suzanne M. Garland, David M. Whiley, Emma L. Sweeney, Catriona S. Bradshaw

Research output: Contribution to journalArticleResearchpeer-review

38 Citations (Scopus)

Abstract

Prevalence, trends, and treatment outcome estimates were generated for parC variants in macrolide-resistant Mycoplasma genitalium. Among 539 cases, the most common amino acid change was S83I, which increased from 13% in 2012 to 2013, to 23% in 2019 to 2020 (Ptrend = 0.046). From 381 moxifloxacin treatments, failure occurred in 58.7% (95% confidence interval [CI], 46.7 to 69.9) of cases with S83I. Other changes affecting S83 or D87 were uncommon and minor contributors to failure. The absence of S83I was highly predictive of moxifloxacin cure (96.4%; 95% CI, 93.7 to 98.2), highlighting diagnostic potential.

Original languageEnglish
Number of pages5
JournalAntimicrobial Agents and Chemotherapy
Volume66
Issue number5
DOIs
Publication statusPublished - May 2022

Keywords

  • antibiotic resistance
  • fluoroquinolone
  • moxifloxacin
  • Mycoplasma genitalium
  • parC
  • ARC Research Hub to Combat Antimicrobial Resistance

    Guy, R. J. (Primary Chief Investigator (PCI)), Broom, A. (Chief Investigator (CI)), Whiley, D. M. (Chief Investigator (CI)), Bradshaw, C. (Chief Investigator (CI)), Applegate, T. (Chief Investigator (CI)), Treloar, C. J. (Chief Investigator (CI)), Wiseman, V. (Chief Investigator (CI)), Huston, W. M. (Chief Investigator (CI)), Williamson, D. (Chief Investigator (CI)), Kaldor, J. M. (Chief Investigator (CI)), Vallely, A. (Chief Investigator (CI)), Hocking, J. S. (Chief Investigator (CI)), Regan, D. G. (Chief Investigator (CI)), Donovan, B. (Chief Investigator (CI)), Kelly-Hanku, A. (Chief Investigator (CI)), Mokany, E. (Partner Investigator (PI)), Todd, A. V. (Partner Investigator (PI)), Persing, D. (Partner Investigator (PI)), Tenover, F. (Partner Investigator (PI)), Graham, J. (Partner Investigator (PI)), Phillips, J. (Partner Investigator (PI)), Boulos, R. (Partner Investigator (PI)), Field, P. F. (Partner Investigator (PI)), Thistlethwaite, J. E. (Partner Investigator (PI)), Chomley, P. (Partner Investigator (PI)), Fairley, C. (Partner Investigator (PI)), Lewis, D. A. (Partner Investigator (PI)), McNulty, A. (Partner Investigator (PI)), Lahra, M. M. (Partner Investigator (PI)), Murray, G. L. (Partner Investigator (PI)), Pomat, W. (Partner Investigator (PI)) & Phanuphak, N. (Partner Investigator (PI))

    16/02/2116/02/26

    Project: Research

Cite this