Pharmaceutical composition for transnasal administration

A - Human Necessities – 61 – K

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A61K 47/42 (2006.01) A61K 38/21 (2006.01) A61K 38/28 (2006.01)

Patent

CA 2716565

By a pharmaceutical composition for nasal administration comprising a hydrophilic bioactive substance and any one of (a) to (c) below, a hydrophilic bioactive substance having a low transmucosal absorption capability which has conventionally been able to be administered by only injection can be nasally administered. Such a pharmaceutical composition is useful for improvement of the pain and the inconvenience of patients caused by administration by injection. (a) A peptide having the amino acid sequence shown in SEQ ID NO: 1. (b) A peptide having the same amino acid sequence as shown in SEQ ID NO:1 except that one or several amino acids are deleted, substituted and/or added, the peptide having nasal mucosal permeability. (c) A peptide having an amino acid sequence represented by the reverse sequence of (a) or (b), the peptide having nasal mucosal permeability.

L'invention porte sur une composition pharmaceutique destinée à une administration transnasale, qui contient une substance bioactive hydrophile et l'un quelconque des peptides suivants (a) à (c) et permet une administration transnasale de la substance bioactive hydrophile dont l'absorption transmucosale est médiocre et l'administration de manière classique ne pourrait se faire que par injection. La composition est utile en tant que composition pharmaceutique apte à soulager la douleur et améliorer l'inconfort de patients devant subir une administration par injection. (a) Un peptide contenant une séquence d'acides aminés représentée par SEQ ID N° : 1 ; (b) un peptide contenant une séquence d'acides aminés avec délétion, substitution ou addition d'un ou plusieurs acides aminés dans la séquence d'acides aminés représentée par SEQ ID N° : 1 et étant apte à pénétrer à travers la muqueuse nasale ; et (c) un peptide contenant une séquence d'acides aminés représentée par une séquence inverse aux séquences dans (a) ou (b) et étant apte à pénétrer à travers la muqueuse nasale.

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