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Details for Patent: 7,842,706

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Details for Patent: 7,842,706

Title:Pharmaceutical composition
Abstract: Pharmaceutical composition which comprises an insulin sensitivity enhancer in combination with other antidiabetics differing from the enhancer in the mechanism of action, which shows a potent depressive effect on diabetic hyperglycemia and is useful for prophylaxis and treatment of diabetes.
Inventor(s): Ikeda; Hitoshi (Osaka, JP), Sohda; Takashi (Osaka, JP), Odaka; Hiroyuki (Hyogo, JP)
Assignee: Takeda Pharmaceutical Company Limited (Osaka, JP)
Filing Date:Mar 20, 2009
Application Number:12/382,691
Claims:1. A method for manufacturing a pharmaceutical composition, comprising forming an admixture comprising an insulin sensitivity enhancer and a biguanide, wherein the insulin sensitivity enhancer is selected from the group consisting of: (a) 5-[4-[2-(3-ethyl-2-pyridyl)ethoxy]benzyl]-2,4-thiazolidinedione or its pharmacologically acceptable salt, (b) 5-[4-[2-(4-ethyl-2-pyridyl)ethoxy]benzyl]-2,4-thiazolidinedione or its pharmacologically acceptable salt, (c) 5-[4-[2-(5-ethyl-2-pyridyl)ethoxy]benzyl]-2,4-thiazolidinedione or its pharmacologically acceptable salt, (d) 5-[4-[2-(6-ethyl-2-pyridyl)ethoxy]benzyl]-2,4-thiazolidinedione or its pharmacologically acceptable salt, (e) (R)-(+)-5-[3-[4-(2-(2-furyl)-5-methyl-4-oxazolylmethoxy]-3-methoxyphenyl]- propyl]-2,4-oxazolidinedione or its pharmacologically acceptable salt, (f) 5-[[3,4-dihydro-2-(phenylmethyl)-2H-1-benzopyran-6-yl]methyl]-2,4-thiazol- idinedione or its sodium salt, (g) 5-[[4-[3-(5-methyl-2-phenyl-4-oxazolyl)-1-oxopropyl]phenyl]methyl]-2,4-th- i azolidinedione or its sodium salt, (h) 5-[2-(5-methyl-2-phenyl-4-oxazolylmethyl)benzofuran-5-ylmethyl]-2,4-oxazo- lidinedione, (i) 5-(2-naphthalenylsulfonyl)-2,4-thiazolidinedione, and (j) 5-[[4-(2-methyl-2-pyridylamino)ethoxy)phenyl]methyl]-2,4-thiazolidinedion- e or its pharmacologically acceptable salt.

2. The method of claim 1, wherein the admixture further comprises an excipient, a disintegrator, a binder, and a lubricant.

3. The method of claim 1, wherein the admixture further comprises an excipient and a thickener.

4. The method of claim 1, further comprising compressing the admixture.

5. The method of claim 4, further comprising applying a coating to the compressed admixture.

6. The method of claim 5, wherein the coating comprises a material selected from the group consisting of (a) ethyl-cellulose, (b) hydroxymethylcellulose, (c) polyoxyethylene glycol, (d) cellulose acetate phthalate, (e) hydroxypropylmethylcellulose phthalate, and (f) a methacrylic-acrylic copolymer.

7. The method of claim 1, wherein the admixture is a powder.

8. The method of claim 1, wherein the admixture is a liquid.

9. The method of claim 1, wherein the admixture is a semi-solid.

10. The method of claim 1, wherein the admixture further comprises an oleaginous base, a water-soluble base, or a hydrophilic base.

11. The method of claim 1, wherein the admixture further comprises an aqueous vehicle or an oily vehicle, and wherein the insulin sensitivity enhancer and biguanide are dissolved, suspended, or emulsified in the aqueous vehicle or the oily vehicle.

12. The method of claim 11, wherein the admixture further comprises a dispersant.

13. The method of claim 12, wherein the admixture further comprises a preservative.

14. The method of claim 1, wherein the insulin sensitivity enhancer is pioglitazone or its hydrochloride.

15. The method of claim 1, wherein the biguanide is selected from the group consisting of phenformin, metformin, and buformin.

16. The method of claim 1, wherein the insulin sensitivity enhancer is pioglitazone or its hydrochloride and the biguanide is metformin.

17. A method for manufacturing an oral dosage form, comprising (a) forming an admixture comprising an insulin sensitivity enhancer, biguanide, and an excipient, wherein the insulin sensitivity enhancer is pioglitazone hydrocholoride and the biguanide is metformin; (b) compressing the admixture; and (c) coating the compressed admixture to form an oral dosage form.

18. The method of claim 17, wherein the admixture further comprises polyethylene glycol, magnesium stearate, and talc.
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