[Amphotericin B: the end of an era]

A M L Oude Lashof1, B J Kullberg

  • 1Universitair Medisch Centrum St Radboud, Nijmeegs Universitair Centrum voor Infectieziekten, afd. Algemeen Interne Geneeskunde AIG-541, Postbus 9101, 6500 HB Nijmegen.

Insights

Lipid-associated amphotericin B formulations offer reduced nephrotoxicity compared to conventional amphotericin B. However, their efficacy is not clearly superior, and newer antifungals limit amphotericin B

Area of Science:

  • Mycology
  • Pharmacology
  • Infectious Diseases

Background:

  • Amphotericin B has been a primary treatment for invasive fungal infections for 45 years.
  • Severe toxicity led to the development of lipid-associated formulations.
  • Comparative efficacy data for lipid formulations are limited.

Discussion:

  • Lipid-associated amphotericin B exhibits significantly reduced nephrotoxicity versus the conventional form.
  • Infusion-related toxicities vary considerably among different lipid formulations.
  • The advent of azoles and echinocandins has diminished the role of amphotericin B.

Key Insights:

  • Lipid formulations of amphotericin B demonstrate improved safety profiles, particularly regarding kidney toxicity.
  • Efficacy of lipid-associated amphotericin B is not definitively proven to be superior to conventional forms.
  • Current antifungal options have relegated amphotericin B to niche applications.

Outlook:

  • Further research is needed to clarify the comparative efficacy of lipid formulations.
  • Understanding and managing infusion-related toxicities remains crucial for clinical use.
  • Amphotericin B's role is likely to remain limited to specific, rare mycoses.

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