Pharmaceutical composition for nasal absorption

A - Human Necessities – 61 – K

Patent

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Details

A61K 38/00 (2006.01) A61K 9/00 (2006.01) A61K 9/14 (2006.01) A61K 38/22 (2006.01) A61K 38/26 (2006.01) A61K 38/28 (2006.01) A61K 47/02 (2006.01) A61K 47/12 (2006.01) A61K 47/34 (2006.01) A61K 47/36 (2006.01) A61K 47/38 (2006.01)

Patent

CA 2468250

It is intended to provide medicinal compositions for nasal absorption which are excellent in the absorbability of a physiologically active polypeptide contained therein as the active ingredient in vivo in the case of the administration into the nasal cavity (nasal administration). More specifically, medicinal compositions for nasal absorption wherein an acidic physiologically active polypeptide having an isoelectric point of 7 or below is uniformly dispersed or embedded in a water-insoluble or hardly water- soluble polyvalent metal compound carrier, for example, a bivalent or more metal compound such as an aluminum compound, a calcium compound, a magnesium compound, a silicon compound, an iron compound or a zinc compound with the use of an additive whereby the polypeptide can be dispersed or embedded in the carrier surface.

L'invention concerne des compositions médicales pour absorption nasale qui présentent de remarquables propriétés d'absorbabilité d'un polypeptide actif sur le plan physiologique présent dans lesdites compositions en tant qu'ingrédient actif in vivo en cas d'administration dans une cavité nasale (administration par voie nasale). D'une manière plus spécifique, l'invention concerne des compositions nasales pour absorption nasale dans lesquelles un polypeptide acide actif sur le plan physiologique ayant un point isoélectrique de 7 ou moins est uniformément dispersé ou intégré dans un support d'un composé métallique polyvalent insoluble ou à peine soluble dans l'eau, par exemple, un composé métallique au moins bivalent, tel qu'un composé aluminium, un composé de calcium, un composé de magnésium, un composé de fer ou un composé de zinc au moyen d'un additif, ce qui permet de disperser ou d'intégrer le polypeptide dans la surface du support.

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