Disseminated Scedosporium prolificans infection in an 'extensive metaboliser': navigating the minefield of drug interactions and pharmacogenomics

Mycoses. 2014 Sep;57(9):572-6. doi: 10.1111/myc.12199. Epub 2014 Apr 24.

Abstract

We report a case of non-fatal disseminated Scedosporium prolificans infection, including central nervous system disease and endophthalmitis, in a relapsed acute myeloid leukaemia patient with extensive CYP2C19 metabolism. Successful treatment required aggressive surgical debridement, three times daily voriconazole dosing and cimetidine CYP2C19 inhibition. In addition, the unique use of miltefosine was employed due to azole-chemotherapeutic drug interactions. Prolonged survival following disseminated S. prolificans, adjunctive miltefosine and augmentation of voriconazole exposure with cimetidine CYP2C19 inhibition has not been reported.

Keywords: CYP2C19; Scedosporium prolificans; endophthalmitis; haematology; miltefosine; voriconazole.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Antifungal Agents / therapeutic use
  • Cimetidine / therapeutic use
  • Cytochrome P-450 CYP2C19 / metabolism*
  • Debridement
  • Drug Interactions*
  • Humans
  • Leukemia, Myeloid, Acute / complications
  • Male
  • Mycoses / diagnosis*
  • Mycoses / drug therapy
  • Mycoses / microbiology*
  • Mycoses / surgery
  • Pharmacogenetics*
  • Scedosporium / isolation & purification*
  • Voriconazole / therapeutic use

Substances

  • Antifungal Agents
  • Cimetidine
  • Cytochrome P-450 CYP2C19
  • Voriconazole