Liposomes Comprising Amphipathic Drugs And Method For Their Preparation


The present invention provides a liposome having co-encapsulated in its intraliposomal aqueous core at least two amphipathic drugs, the liposomes being characterized by one of the following: the amphipathic drugs are co-encapsulated at a pre-determined ratio; the liposome comprises one or a combination of liposome forming lipids have a solid ordered to liquid disordered phase transition temperature above 37°C; each of the amphipathic drugs exhibit a liposomal profile that corresponds to the profile of each drug when encapsulated as a single drug in the same liposome; and the liposome is absent of one or both of a transition metal and a ionophore. The invention also provides a method for preparing such liposomes. This method, taken together with the features of the liposomal composition, provides high loading and long term stability of the resulting co-encapsulated liposomal formulation.

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Document History
  • Publication: Aug 4, 2011
  • Application: Feb 1, 2011
    WO IL 2011000114 W
  • Priority: Feb 1, 2010
    US US 30018110 P

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