MANUFACTURING PROCESS FOR LIPOSOMAL PREPARATIONS
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 for...
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Format: | Patent |
Sprache: | eng ; spa |
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Zusammenfassung: | 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.
La presente invencion provee procedimientos de fabricacion para preparaciones liposomicas. De conformidad con los metodos, se disuelve una fraccion lipida en un solvente organico miscible en agua. Esta solucion que comprende la fraccion lipida se puede agregar a, y mezclar con una solucion acuosa bajo condiciones para formar una preparacion liposomica a granel. De manera deseable, la preparacion puede incluir uno o mas principios activos. La preparacion liposomica a granel se puede procesar tambien segun se desee, por ejemplo, mediante fraccionamiento o reduccion de tamano, remocion del solvente organico miscible en agua, secado por congelamiento, u otro tratamiento. Los metodos permiten la produccion de formulaciones liposomicas a gran escala o a escala comercial. |
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