Sphingomonas paucimobilis bloodstream infections associated with contaminated intravenous fentanyl

Lisa L Maragakis1, Romanee Chaiwarith, Arjun Srinivasan

  • 1Division of Infectious Diseases, Department of Hospital Epidemiology and Infection Control, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA. lmaraga1@jhmi.edu

Insights

Contaminated fentanyl from compounding pharmacies caused Sphingomonas paucimobilis bloodstream infections in multiple states. Stricter quality control is needed for sterile drug preparations to prevent outbreaks.

Area of Science:

  • Infectious Diseases
  • Public Health
  • Microbiology

Background:

  • Compounding pharmacies may have less stringent quality control than manufacturers.
  • Multistate outbreaks have been linked to nationally distributed medications.

Purpose of the Study:

  • Investigate a cluster of Sphingomonas paucimobilis bloodstream infections.
  • Determine the source of the outbreak and identify risk factors.

Main Methods:

  • Case investigation of patients with S. paucimobilis bloodstream infections.
  • Microbiological culturing of intravenous fentanyl samples.
  • Pulsed-field gel electrophoresis (PFGE) for bacterial strain comparison.

Main Results:

  • Five of six case-patients in Maryland received intravenous fentanyl before infection.
  • S. paucimobilis was isolated from unopened fentanyl samples.
  • PFGE confirmed the outbreak strain was present in the contaminated fentanyl lot.
  • Two additional cases in California were linked to fentanyl from the same pharmacy.

Conclusions:

  • Intravenous fentanyl from a compounding pharmacy was the source of S. paucimobilis outbreaks.
  • Compounding pharmacies need enhanced quality control, including prerelease testing for sterile products.
  • Stricter oversight is crucial to prevent future outbreaks linked to compounded medications.