US Patent:
20060034908, Feb 16, 2006
Inventors:
Shastri Bhamidipati - Buffalo Grove IL, US
Zafeer Ahmad - Wadsworth IL, US
Imran Ahmad - Wadsworth IL, US
Assignee:
NeoPharm, Inc. - Lake Forest IL
International Classification:
A61K 9/127
Abstract:
The present invention provides manufacturing processes for liposomal preparations. In accordance with the methods, a lipid fraction is dissolved in a water-miscible organic solvent. This solution comprising the lipid fraction can be added to and mixed with an aqueous solution under conditions to form a bulk liposomal preparation. Desirably, the preparation can include one or more active principals. The bulk liposomal preparation can be further processed as desired, for example, by size fractionation or reduction, removal of the water-miscible organic solvent, freeze-drying, or other treatment. The methods permit the production of liposomal formulations on a large or commercial scale.