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Claims for Patent: 9,089,471

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Claims for Patent: 9,089,471

Title:Formulation of indomethacin
Abstract: The present invention relates to methods for producing particles of indomethacin using dry milling processes as well as compositions comprising indomethacin, medicaments produced using indomethacin in particulate form and/or compositions, and to methods of treatment of an animal, including man, using a therapeutically effective amount of indomethacin administered by way of said medicaments.
Inventor(s): Dodd; Aaron (Centennial Park, AU), Meiser; Felix (Claremont, AU), Norret; Marck (Darlington, AU), Russell; Adrian (Rivervale, AU), Bosch; H. William (Bryn Mawr, PA)
Assignee: iCeutica Pty Ltd. (Philadelphia, PA)
Application Number:14/284,981
Patent Claims: 1. A method of treating pain comprising administering a solid unit dose of a pharmaceutical composition containing 20 mg of indomethacin wherein the unit dose when tested in vitro by USP Apparatus I (Basket) method of U.S. Pharmacopoeia at 100 rpm at 37.degree. C. in 900 ml of 100 mM citric acid buffer (pH 5.5.+-.0.05) has a dissolution rate of indomethacin such that at least 83%, by weight, is released by 75 minutes and wherein the D90 of the indomethacin, on a particle volume basis, is selected from the group consisting of: less than 5000 nm, less than 4000 nm, 3000 nm, less than 2000 nm, less than 1900 nm, less than 1800 nm, and less than 1700 nm.

2. The method of claim 1, wherein the solid unit dose has a dissolution rate of indomethacin such that at least 83%, by weight, is released by 60 minutes.

3. The method of claim 1, wherein the solid unit dose has a dissolution rate of indomethacin such that at least 83%, by weight, is released by 45 minutes.

4. The method of claim 1, wherein the solid unit dose has a dissolution rate of indomethacin such that at least 83%, by weight, is released by 30 minutes.

5. The method of claim 1, wherein the solid unit dose has a dissolution rate of indomethacin such that at least 83%, by weight, is released by 20 minutes.

6. The method of claim 1, wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 1000 nm.

7. The method of claim 1 wherein indomethacin has a median particle size, on a particle volume basis, between 25 nm and 700 nm.

8. The method of claim 1, wherein the D90 of the indomethacin, on a particle volume basis is less than 3000 nm.

9. A method of treating pain comprising administering a solid unit dose of a pharmaceutical composition containing 40 mg of indomethacin wherein the unit dose when tested in vitro by USP Apparatus I (Basket) method of U.S. Pharmacopoeia at 100 rpm at 37.degree. C. in 900 ml of 100 mM citric acid buffer (pH 5.5.+-.0.05) has a dissolution rate of indomethacin such that at least 66%, by weight, is released by 75 minutes and wherein the D90 of the indomethacin, on a particle volume basis, is selected from the group consisting of: less than 5000 nm, less than 4000 nm, 3000 nm, less than 2000 nm, less than 1900 nm, less than 1800 nm, and less than 1700 nm.

10. The method of claim 9, wherein the solid unit dose has a dissolution rate of indomethacin such that at least 66%, by weight, is released by 60 minutes.

11. The method of claim 9, wherein the solid unit dose has a dissolution rate of indomethacin such that at least 66%, by weight, is released by 45 minutes.

12. The method of claim 9, wherein the solid unit dose has a dissolution rate of indomethacin such that at least 66%, by weight, is released by 30 minutes.

13. The method of claim 9, wherein the unit dose has a dissolution rate of indomethacin such that at least 66%, by weight, is released by 20 minutes.

14. The method of claim 9, wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 1000 nm.

15. The method of claim 9, wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 700 nm.

16. The method of claim 9, wherein the D90 of the indomethacin, on a particle volume basis, is less than 3000 nm.

17. The method of claim 1 wherein the solid unit dose is a capsule or a tablet.

18. The method of claim 9 wherein the solid unit dose is a capsule or a tablet.

19. The method of claim 1 wherein the solid unit dose is administered at least once daily.

20. The method of claim 9 wherein the solid unit dose is administered at least once daily.

21. The method of claim 2 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.

22. The method of claim 3 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.

23. The method of claim 4 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.

24. The method of claim 5 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.

25. The method of claim 10 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.

26. The method of claim 11 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.

27. The method of claim 12 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.

28. The method of claim 13 wherein the indomethacin has a median particle size, on a particle volume basis, between 25 nm and 800 nm.
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