Anion-binding polymers and uses thereof

C - Chemistry – Metallurgy – 08 – G

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C08G 73/02 (2006.01) A61K 31/66 (2006.01)

Patent

CA 2542730

Anion-binding polymers are described. The anion-binding polymers in some cases are low swelling anion-binding polymers. In some cases, the anion-binding polymers have a pore volume distribution such that a fraction of the polymer is not available for non-interacting solutes above a certain percentage of the MW of the target ion for the polymer. In some cases, the anion-binding polymers are characterized by low ion-binding interference, where the interference is measured in, for example, a gastrointestinal simulant, relative to non-interfering buffer. Pharmaceutical composition, methods of use, and kits are also described.

L'invention concerne des polymères liant les anions. Les polymères liant les anions sont dans certains cas des polymères liant les anions à faible gonflement. Dans certains cas, les polymères liant les anions ont une répartition du volume des pores telle qu'une fraction du polymère n'est pas disponible pour les solutés non interagissant en dessus d'un pourcentage déterminé de MW de l'ion cible dans le polymère. Dans certains cas, les polymères liant les anions sont caractérisés par une faible interférence de liaison d'ions, lorsque l'interférence est mesurée, par exemple, dans un pseudo-agent gastro-intestinal, par rapport à un tampon exempt d'interférences. L'invention concerne également une composition pharmaceutique, des procédés d'utilisation et des ensembles correspondants.

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