Assessment of high-priced systemic antifungal prescriptions

Med Mal Infect. 2017 Oct;47(6):382-388. doi: 10.1016/j.medmal.2017.03.004. Epub 2017 Apr 13.

Abstract

Objectives: To assess compliance with international guidelines for costly antifungal prescriptions and to compare these results with a first study performed in 2007.

Methods: Retrospective study including all costly antifungal prescriptions made in surgical and medical intensive care units and in a hepatobiliary, pancreatic, and digestive surgery unit. Prescriptions were assessed in terms of indication, dosage, and antifungal de-escalation.

Results: Seventy-four treatments were analyzed. Treatments were prescribed for prophylactic (1%), empirical (22%), pre-emptive (16%), or targeted therapy (61%). Caspofungin accounted for 68% of prescriptions, followed by voriconazole (20%) and liposomal amphotericin B (12%). Indication was appropriate in 91%, debatable in 1%, and inappropriate in 8%. Dosage was appropriate in 69%, debatable in 8%, and inappropriate in 23%. Prescriptions were inappropriate for the following reasons: lack of dosage adjustment in light of the hepatic function (10 cases), underdosage or excessive dosage by>25% of the recommended dose in seven cases. De-escalation to fluconazole was implemented in 40% of patients presenting with a fluconazole-susceptible candidiasis.

Conclusion: The overall incidence of appropriate use was higher in 2012 compared with 2007 (62% and 37% respectively, P=0.004). Nevertheless, costly antifungal prescriptions need to be optimized in particular for empirical therapy, dosage adjustment, and potential de-escalation to fluconazole.

Keywords: Antifongiques; Antifungal therapy; Aspergilloses; Aspergillosis; Candidiasis; Candidoses.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Amphotericin B / administration & dosage
  • Amphotericin B / economics
  • Amphotericin B / therapeutic use
  • Antifungal Agents / administration & dosage
  • Antifungal Agents / economics
  • Antifungal Agents / therapeutic use*
  • Caspofungin
  • Echinocandins / administration & dosage
  • Echinocandins / economics
  • Echinocandins / therapeutic use
  • Female
  • Hematologic Neoplasms / complications
  • Hematopoietic Stem Cell Transplantation
  • Humans
  • Lipopeptides / administration & dosage
  • Lipopeptides / economics
  • Lipopeptides / therapeutic use
  • Male
  • Middle Aged
  • Multiple Organ Failure
  • Mycoses / complications
  • Mycoses / drug therapy*
  • Mycoses / mortality
  • Mycoses / prevention & control
  • Organ Transplantation
  • Retrospective Studies
  • Survival Rate
  • Treatment Outcome
  • Voriconazole / administration & dosage
  • Voriconazole / economics
  • Voriconazole / therapeutic use
  • Young Adult

Substances

  • Antifungal Agents
  • Echinocandins
  • Lipopeptides
  • liposomal amphotericin B
  • Amphotericin B
  • Caspofungin
  • Voriconazole