Use of lipoaminoacids as absorption promoters in a...

A - Human Necessities – 61 – K

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A61K 47/18 (2006.01) A61K 9/00 (2006.01)

Patent

CA 2441824

The invention concerns the use, in a pharmaceutical composition comprising at least an active principle, of at least a lipoaminoacid consisting of the combination between a fatty acid and an amino acid, the fatty acid comprising 4 to 40 carbon atoms and the amino acid may be a natural, synthetic or modified amino acid, in native or salified form; the lipoaminoacid being either an intestinal absorption promoter, or a pulmonary absorption promoter, depending on whether the composition is respectively in galenic form for oral administration or in galenic form for pulmonary administration. The invention also concerns a dispersed system comprising such a lipoaminoacid, the dispersed system being in galenic form adapted to the mode of delivery.

La présente invention concerne l'utilisation, dans une composition pharmaceutique comprenant au moins un principe actif, d'au moins un lipoaminoacide constitué par l'association entre un acide gras et un aminoacide, l'acide gras comprenant de 4 à 40 atomes de carbone et l'aminoacide pouvant être un acide aminé naturel, synthétique ou modifié, pouvant se présenter sous forme native ou salifiée; le lipoamioacide étant soit un promoteur d'absorption intestinale, soit un promoteur d'absorption pulmonaire, selon la composition est respectivement sous une forme galénique adaptée à une administration orale ou sous une forme galénique adaptée à une administration au niveau des poumons. Un autre objet de l'invention est un système dispersé comprenant un tel lipoaminoacide, le système dispersé étant sous une forme galénique qui est appropriée au mode d'administration.

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