Nanoparticulate clopidogrel and aspirin combination...

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/4365 (2006.01) A61K 31/60 (2006.01) A61P 9/10 (2006.01)

Patent

CA 2611741

The present invention is directed to compositions comprising a nanoparticulate clopidogrel and aspirin combination, or salts or derivatives thereof, having improved clopidogrel bioavailability. The nanoparticulate clopidogrel particles, and optionally the nanoparticulate aspirin particles, of the composition have an effective average particle size of less than about 2000 nm and are useful in the prevention and treatment of pathologies induced by platelet aggregation. The clopidogrel and aspirin particles may also be formulated as a controlled release polymeric coating or matrix drug delivery system.

Cette invention concerne des compositions comprenant une combinaison d'aspirine et de nanoparticules de clopidogrel, ou des sels ou des dérivés de cette combinaison, ayant une meilleure biodisponibilité du clopidogrel. Les nanoparticules de clopidogrel, et éventuellement, les nanoparticules d'aspirine contenues dans cette composition présentent une granulométrie moyenne efficace inférieure à environ 2000 nm et elles sont utiles pour prévenir et traiter des pathologies induites par l'agrégation plaquettaire. Les particules de clopidogrel et d'aspirine peuvent également être formulées sous la forme d'un enrobage polymère à libération lente ou d'un système matriciel d'administration médicamenteuse.

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