Posaconazole: a broad-spectrum triazole antifungal

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Live Imaging of Antifungal Activity by Human Primary Neutrophils and Monocytes in Response to A. fumigatus
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Harrys A Torres1, Ray Y Hachem, Roy F Chemaly

  • 1Department of Infectious Diseases, Infection Control and Employee Health, University of Texas M D Anderson Cancer Center, Houston, Texas 77030-4009, USA.

The Lancet. Infectious Diseases
|November 29, 2005
PubMed

Insights

Posaconazole, a new triazole antifungal, shows broad-spectrum activity against invasive fungal infections. It is well-tolerated and demonstrates promising efficacy for difficult-to-treat conditions.

Area of Science:

  • Mycology
  • Pharmacology
  • Infectious Diseases

Background:

  • Invasive fungal infections pose a significant threat, particularly in immunocompromised patients.
  • Current antifungal therapies face challenges with resistance and refractory cases.
  • Posaconazole represents a novel triazole antifungal agent.

Purpose of the Study:

  • To evaluate the efficacy and safety of posaconazole for treating and preventing invasive fungal infections.
  • To assess the broad-spectrum activity of posaconazole against various fungal pathogens.

Main Methods:

  • In-vitro and in-vivo studies were conducted to determine the antifungal spectrum.
  • Posaconazole's pharmacokinetic profile, including distribution and metabolism, was analyzed.
  • Clinical efficacy and tolerability were assessed in phase III trials.

Main Results:

  • Posaconazole exhibited broad-spectrum activity against Candida, Cryptococcus, Aspergillus, Fusarium, zygomycetes, and endemic fungi.
  • The drug is orally administered and widely distributed, with hepatic metabolism.
  • Adverse events were generally mild, including headache and gastrointestinal issues.

Conclusions:

  • Posaconazole is a well-tolerated oral antifungal with promising clinical efficacy.
  • It offers a potential treatment option for life-threatening fungal infections refractory to existing therapies.
  • Posaconazole shows significant potential in managing invasive aspergillosis, fusariosis, and zygomycosis.

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