A composition material for transmucosal delivery

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/20 (2006.01) A61K 9/00 (2006.01) A61K 9/14 (2006.01) A61K 47/48 (2006.01) A61P 25/34 (2006.01)

Patent

CA 2514325

The invention refers to a composition material that is intended for rapid transmucosal delivery in the mouth of a biologically active substance when in contact with saliva. The composition material comprises at least one ionic carbohydrate, having at least one biologically active substance ionically bound thereto, and at least one wetable non-soluble polymeric carbohydrate. The invention also refers to a method of preparing the composition material, which comprises the steps of: (a) providing a mixture of the at least one biologically active substance and at least one ionic carbohydrate in a solvent having a permissive pH for ionic bonding of the at least one biologically active substance to the at least one ionic carbohydrate; (b) mixing the mixture in the solvent for a period that is sufficient for allowing the ionic bonding to take place; and (c) recovering the mixture from the solvent.

L'invention concerne un matière de composition destinée à l'administration rapide à travers la muqueuse par la bouche d'une substance biologiquement active lorsqu'elle se trouve en contact avec la salive. La matière de composition comprend au moins un glucide ionique, auquel est fixé par voie ionique au moins une substance biologiquement active, et au moins un glucide polymère humidifiable non soluble. L'invention concerne également un procédé de préparation de la matière de composition qui comprend les étapes consistant : (a) à constituer un mélange au moins d'une substance biologiquement active et d'au moins un glucide ionique dans un solvant ayant un pH permissif pour la liaison ionique d'au moins la substance biologiquement active à au moins un glucide ionique ; (b) à mélanger le mélange dans le solvant pendant une durée suffisante pour permettre à la liaison ionique d'avoir lieu ; et (c) à récupérer le mélange du solvant.

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