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Related Experiment Videos

Development of liposomal amphotericin B formulation

M Gulati1, S Bajad, S Singh

  • 1University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India.

Journal of Microencapsulation
|April 9, 1998
PubMed
Summary

Liposomal amphotericin B (L-AmB) offers improved efficacy and reduced toxicity for fungal infections compared to conventional amphotericin B. This review details the development and clinical utility of L-AmB, highlighting its advantages in treating immunocompromised patients.

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Area of Science:

  • Pharmacology
  • Drug Delivery Systems
  • Mycology

Background:

  • Conventional amphotericin B (AmB) has significant acute and chronic toxicities, including renal dysfunction and cardiotoxicity.
  • Poor response rates to AmB were observed in immunocompromised patients, such as those with AIDS or undergoing chemotherapy.
  • Liposomes emerged as a promising drug delivery system to improve drug efficacy and reduce side effects.

Purpose of the Study:

  • To review the development and clinical utility of liposomal amphotericin B (L-AmB) as a novel drug delivery system.
  • To evaluate the improved therapeutic index and reduced toxicity of L-AmB compared to conventional AmB.
  • To assess the efficacy of L-AmB in treating deep-seated fungal infections in immunocompromised patients.

Main Methods:

Related Experiment Videos

  • Review of in vitro, in vivo, and clinical studies on L-AmB.
  • Analysis of biodistribution and pharmacokinetic data of L-AmB.
  • Examination of formulation considerations and clinical experience with marketed L-AmB preparations.

    • Main Results:

    • L-AmB demonstrated a significantly better therapeutic index and lower toxicity than conventional AmB, with a higher LD50 in mice (175 mg/kg for L-AmB vs. 3.7 mg/kg for conventional AmB).
    • L-AmB exhibits prolonged circulation time and targeted delivery to infection sites, minimizing nephrotoxicity and neurotoxicity.
    • Clinical studies confirmed the efficacy of L-AmB in treating fungal infections, particularly in immunocompromised individuals.

    Conclusions:

    • Liposomal encapsulation significantly enhances the safety and efficacy profile of amphotericin B.
    • L-AmB represents a clinically valuable advancement in antifungal therapy, especially for vulnerable patient populations.
    • Further research into liposomal drug delivery systems holds potential for improved therapeutic outcomes in various diseases.