Phosphate binder with reduced pill burden

A - Human Necessities – 61 – K

Patent

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Details

A61K 33/24 (2006.01) A61K 47/00 (2006.01) A61P 13/12 (2006.01)

Patent

CA 2583548

The present invention is generally directed to compositions and formulations that can be used for the treatment of diseases such as End Stage Renal Disease (~ESRD~) and Chronic Renal Insufficiency (~CRI~). Specifically, it is directed to lanthanum-based compounds that bind phosphate and that can be formulated to provide for a reduced pill burden relative to other phosphate binders. In a formulation aspect of the present invention, a formulation is provided the includes a lanthanum-based, phosphate binder. The formulation is typically characterized in that in may be swallowed without chewing. Formulations of the present invention, along with a lanthanum-based compound, may optionally include the following: mass diluting agents; binders; coatings; compression/encapsulation aids; disintegrants; lubricants; plasticizers; slip/anti~electrostatic agents; powder lubricants; and, sweeteners. Where the formulation is in the form of a tablet, it typically has a volume between 0.3 cm3 and 1.2 cm3, preferably between 0.35 cm3 and 0.50 cm3. Each tablet typically includes enough phosphate binder such that only 3 or less tablets need to be ingested each day for a patient suffering from ESRD.

L'invention concerne, en général, des compositions et des formulations pouvant être utilisées pour le traitement de maladies, telles que la néphropathie au stade terminal ( ESRD ) et l'insuffisance rénale chronique ( CRI ). De plus, l'invention concerne des composés à base de lanthane liant le phosphate et pouvant être formulés de manière à engendrer une prise de comprimés réduite par rapport à d'autres liants phosphate. Dans un mode de réalisation, une formulation comprend un liant phosphate à base de lanthane. La formulation est généralement caractérisée en ce qu'elle peut être avalée sans être mâchée. Les formulations selon l'invention, conjointement avec un composé à base de lanthane, peuvent éventuellement comprendre: des agents diluants de masse; des liants; des enrobages; des auxiliaires de compression/encapsulation; des désintégrants; des lubrifiants; des plastifiants; des agents glissants/anti-électrostatiques; des lubrifiants en poudre; et des édulcorants. Quand la formulation se présente sous la forme d'un comprimé, elle présente en général un volume compris entre 0,3 cm3 et 1,2 cm3, de préférence entre 0,35 cm3 et 0,50 cm3. Chaque comprimé comprend, en général, suffisamment de liant phosphate, de manière qu'uniquement au maximum 3 comprimés doivent être ingérés chaque jour par un patient souffrant de ESRD.

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