Drug Safety

, Volume 24, Issue 12, pp 903–920

A Comparison of Liposomal Formulations of Doxorubicin with Drug Administered in Free Form

Changing Toxicity Profiles
  • Dawn N. Waterhouse
  • Paul G. Tardi
  • Lawrence D. Mayer
  • Marcel B. Bally
Review Article

DOI: 10.2165/00002018-200124120-00004

Cite this article as:
Waterhouse, D.N., Tardi, P.G., Mayer, L.D. et al. Drug-Safety (2001) 24: 903. doi:10.2165/00002018-200124120-00004

Abstract

The anthracycline antibiotic doxorubicin has wide activity against a number of human neoplasms and is used extensively both as a single agent and in combination regimens. In addition to the use of free, unencapsulated doxorubicin, there are two US Food and Drug Administration approved liposomal formulations of doxorubicin currently available, with several additional liposomal formulations being researched either in the laboratory or in clinical trials. The two approved liposomal formulations of doxorubicin have significantly different lipid compositions and loading techniques, which lead to both unique pharmacokinetic and toxicity profiles, distinct from those of the unencapsulated form.

This article discusses the toxicities associated with the free form of doxorubicin, as well as those associated with the two most common liposomal formulations, namely Doxil®1 and Myocet™. One of the key toxicity issues linked to the use of free doxorubicin is that of both an acute and a chronic form of cardiomyopathy. This is circumvented by the use of liposomal formulations, as these systems tend to sequester the drug away from organs such as the heart, with greater accumulation in liver, spleen and tumours. However, as will be discussed, the liposomal formulations of doxorubicin are not without their own related toxicities, and, in the case of Doxil®, may be associated with the unique toxicity of palmar-plantar erythrodysaesthesia. Overall, the use of liposomal doxorubicin allows for a greater lifetime cumulative dose of doxorubicin to be administered, however acute maximal tolerated doses differ significantly, with that of Myocet™ being essentially equivalent to free doxorubicin, while higher doses of Doxil® may be safely administered.

Copyright information

© Adis International Limited 2001

Authors and Affiliations

  • Dawn N. Waterhouse
    • 1
    • 2
  • Paul G. Tardi
    • 2
  • Lawrence D. Mayer
    • 2
    • 3
  • Marcel B. Bally
    • 1
    • 2
  1. 1.Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouverCanada
  2. 2.Department of Advanced TherapeuticsBritish Columbia Cancer Research CentreVancouverCanada
  3. 3.Faculty of Pharmaceutical SciencesUniversity of British ColumbiaVancouverCanada

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