Iron dextrin compounds for the treatment of iron deficiency...

C - Chemistry – Metallurgy – 08 – B

Patent

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C08B 30/18 (2006.01) A61K 31/715 (2006.01) A61K 31/718 (2006.01) A61K 33/26 (2006.01) A61K 47/36 (2006.01) A61K 47/48 (2006.01) A61P 7/06 (2006.01) C07F 15/02 (2006.01) C08L 3/02 (2006.01)

Patent

CA 2480365

An iron-dextrin compound for treatment of iron deficiency anaemia comprising hydrogenated dextrin having a weight average molecular weight equal to or less than 3,000 Dalton and a number average molecular weight equal to or higher than 400 Daltons, in stable association with ferric oxyhydroxide. As the molecular weight of the dextrin must be narrow it is another important feature of the invention that the 10 % fraction of the dextrins having the highest molecular weight has an average molecular weight of less than 4500 Daltons, and that 90 % of the dextrins are having molecular weights of less than 3000 Daltons. It is further important that the 10 % fraction having the lowest molecular weight has a weight average molecular weight of 340 Daltons or more.

La présente invention concerne un composé de dextrine de fer conçu pour traiter une anémie ferriprive. Ce composé comprend de la dextrine hydrogénée qui présente un poids moléculaire moyen en poids inférieur ou égal à 3000 daltons et un poids moléculaire moyen en nombre supérieur ou égal à 400 daltons et qui est en association stable avec de l'oxyhydroxyde ferrique. Etant donné que le poids moléculaire de la dextrine doit être faible, cette invention est caractérisée en ce que 10 % des dextrines présentant le plus haut poids moléculaire présentent un poids moléculaire moyen inférieur à 4500 daltons et en ce que 90 % des dextrines ont des poids moléculaire inférieurs à 3000 daltons. Cette invention est également caractérisée en ce que 10 % des dextrines présentant le plus bas poids moléculaire présentent un poids moléculaire moyen en poids supérieur ou égal à 340 daltons.

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