Toxicodynamics of itraconazole: implications for therapeutic drug monitoring

Clin Infect Dis. 2009 Sep 15;49(6):928-30. doi: 10.1086/605499.

Abstract

We explored concentration-toxicity relationships for itraconazole among 216 patients. Logistic regression revealed a progressive increase in the probability of toxicity with increasing concentrations of itraconazole. Classification and regression tree analysis suggested that 17.1 mg/L of itraconazole (measured using a bioassay) was the concentration level at which the population of patients was separated into 2 groups, each with a high and a low probability of toxicity.

MeSH terms

  • Antifungal Agents / adverse effects*
  • Antifungal Agents / blood
  • Antifungal Agents / pharmacokinetics
  • Antifungal Agents / therapeutic use
  • Aspergillosis, Allergic Bronchopulmonary / drug therapy
  • Dose-Response Relationship, Drug
  • Drug Monitoring*
  • Gastrointestinal Diseases / chemically induced*
  • Humans
  • Immunocompromised Host
  • Itraconazole / adverse effects*
  • Itraconazole / blood
  • Itraconazole / pharmacokinetics
  • Itraconazole / therapeutic use
  • Logistic Models
  • Organ Transplantation
  • Pulmonary Aspergillosis / drug therapy
  • ROC Curve
  • Treatment Outcome
  • Water-Electrolyte Balance / drug effects*

Substances

  • Antifungal Agents
  • Itraconazole