Directly compressible high functionality granular...

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/16 (2006.01) A61K 9/20 (2006.01)

Patent

CA 2702055

An improved excipient comprising substantially homogeneous particles of a compressible, high functionality granular microcrystalline cellulose based excipient is provided. The improved excipient comprises microcrystalline cellulose, a binder and a disintegrant, and is formed by spraying a homogeneous slurry of the components. The excipient provides enhanced flowability/good flow properties, excellent/high compactibility, and increased API loading and blendability as compared to the individual components, and as compared to conventional excipients formed from the same materials. The improved excipient has strong intraparticle bonding bridges between the components, resulting in a unique structural morphology including significant open structures or hollow pores. The presence of these pores provides a surface roughness that is the ideal environment for improved blending with an API.

La présente invention concerne un excipient amélioré comprenant des particules essentiellement homogènes d'un excipient à base de cellulose microcristalline granulaire à fonctionnalité élevée compressible. L'excipient amélioré comprend de la cellulose microcristalline, un liant et un délitant, et est formé en pulvérisant une bouillie homogène des composants. L'excipient fournit une fluidité améliorée / de bonnes propriétés d'écoulement, une excellente compressibilité / une compressibilité élevée, et une charge API et une aptitude au mélange augmentées par comparaison aux composants individuels, et par comparaison aux excipients conventionnels formés à partir des mêmes matériaux. L'excipient amélioré présente des ponts de liaison intraparticules forts entre les composants, résultant en une morphologie structurale unique y compris des structures ouvertes ou des pores vides significatifs. La présence de ces pores fournit une rugosité de surface qui est l'environnement idéal pour un mélange amélioré avec un API.

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