Voriconazole in clinical practice

Małgorzata Mikulska1, Andrea Novelli, Franco Aversa

  • 1Division of Infectious Diseases, University of Genoa and San Martino University Hospital, Genoa, Italy. m.mikulska@unige.it

Insights

Voriconazole is a crucial antifungal for immunocompromised patients but has variable effects due to metabolism and drug interactions. Therapeutic drug monitoring is vital for optimizing voriconazole efficacy and safety.

Area of Science:

  • Medical Mycology
  • Clinical Pharmacology

Background:

  • Invasive fungal diseases (IFDs) pose significant risks in immunocompromised individuals.
  • Voriconazole is a primary treatment for invasive aspergillosis and other serious fungal infections.
  • Voriconazole exhibits complex pharmacokinetics, including non-linear absorption and extensive hepatic metabolism via cytochrome P450 enzymes.

Purpose of the Study:

  • To provide a comprehensive overview of voriconazole's pharmacological properties.
  • To highlight the importance of understanding voriconazole metabolism, drug interactions, and population-specific dosing.
  • To emphasize the role of therapeutic drug monitoring in optimizing voriconazole treatment outcomes.

Main Methods:

  • Review of pharmacological, mycological, and clinical data related to voriconazole.
  • Analysis of factors influencing voriconazole pharmacokinetics, including age, genetics, and drug-drug interactions.
  • Evaluation of voriconazole's narrow therapeutic index and potential toxicities.

Main Results:

  • Voriconazole's efficacy is influenced by significant interpatient pharmacokinetic variability.
  • High serum levels, 3-5 times above the efficacy threshold, are associated with increased toxicity.
  • Optimal voriconazole use requires careful consideration of its pharmacological profile and patient-specific factors.

Conclusions:

  • Understanding voriconazole's complex pharmacology is essential for effective clinical management.
  • Therapeutic drug monitoring is a key strategy to enhance voriconazole efficacy and mitigate toxicity.
  • This review aims to optimize voriconazole utilization in clinical practice through a synthesis of key aspects.

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