Claims for Patent: 9,675,611

Summary for Patent: 9,675,611

Title:	Methods of providing analgesia
Abstract:	A solid oral controlled-release oral dosage form of hydrocodone is disclosed. The dosage form comprising an analgesically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof, and a sufficient amount of a controlled release material to render the dosage form suitable for twice-a-day administration to a human patient, the dosage form providing a C12/Cmax ratio of 0.55 to 0.85, said dosage form providing a therapeutic effect for at least about 12 hours.
Inventor(s):	Benjamin Oshlack, Hua-pin Huang, John Masselink, Alfred Tonelli
Assignee:	Purdue Pharma LP
Application Number:	US15/376,851
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 9,675,611
Patent Claims:	1. A method of providing analgesia in a human comprising: orally administering to the human a dosage form comprising a therapeutically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof wherein the dosage form releases the hydrocodone or pharmaceutically acceptable salt thereof at such a rate that plasma concentrations of hydrocodone are maintained within the therapeutic range but below toxic concentrations for about 12 hours or longer, the hydrocodone or pharmaceutically acceptable salt thereof is the only drug in the dosage form, the dosage form provides a hydrocodone plasma concentration of at least about 8 ng/ml at about 8 hours after administration, a hydrocodone plasma concentration of about 5 ng/ml or greater at 12 hours after administration, and the dosage form is a tablet or a capsule. 2. The method of claim 1, wherein the dosage form provides controlled release of hydrocodone or pharmaceutically acceptable salt thereof for about 24 hours. 3. The method of claim 2, wherein the dosage form is a tablet. 4. The method of claim 3, wherein the dosage form provides a hydrocodone plasma concentration of at least about 8 ng/ml at about 2 hours after administration. 5. The method of claim of claim 4, wherein the tablet comprises a pharmaceutically acceptable polymer. 6. The method of claim 5, wherein the pharmaceutically acceptable polymer comprises between 1% and 80% of the tablet by weight. 7. The method of claim 5, wherein the dosage form comprises an excipient having a melting point of from 30 to about 200° C. 8. The method of claim 5, wherein the pharmaceutically acceptable polymer is a hydroxyalkylcellulose. 9. The method of claim 8, wherein the hydroxyalkylcellulose is a hydroxypropylcellulose or a hydroxypropylmethylcellulose. 10. The method of claim 9, wherein the hydroxyalkylcellulose is the hydroxypropylmethylcellulose. 11. The method of claim 7, wherein the excipient is a polyalkylene glycol. 12. The method of claim 1, wherein the dosage form provides a hydrocodone Cmax that increases linearly from one dosage strength to another. 13. The method of claim 3, wherein the dosage form provides a plasma concentration profile of hydrocodone with a C12/Cmax hydrocodone ratio of 0.55 to 0.85. 14. The method of claim 3, wherein the dosage form provides a plasma concentration profile of hydrocodone with a C12/Cmax hydrocodone ratio of 0.55 to 0.65. 15. The method of claim 3, wherein the dosage form provides a plasma concentration profile of hydrocodone with a C12/Cmax hydrocodone ratio of 0.65 to 0.85. 16. The method of claim 14, wherein said C12/Cmax hydrocodone ratio is calculated from hydrocodone plasma concentrations from first administration of the dosage form to a population of fasted humans. 17. The method of claim 15, wherein said C12/Cmax hydrocodone ratio is calculated from hydrocodone plasma concentrations from first administration of the dosage form to a population of fasted humans. 18. The method of claim 14, wherein a portion of the plasma concentration profile of hydrocodone is relatively flat. 19. The method of claim 14, wherein said C12/Cmax hydrocodone ratio is calculated from hydrocodone plasma concentrations from first administration of the dosage form to a fed human. 20. The method of claim 15, wherein said C12/Cmax hydrocodone ratio is calculated from hydrocodone plasma concentrations from first administration of the dosage form to a fed human. 21. The method of claim 13, wherein said C12/Cmax hydrocodone ratio is calculated from hydrocodone plasma concentrations from first administration of the dosage form to a population of fed human. 22. The method of claim 1, wherein said hydrocodone plasma concentrations are hydrocodone plasma concentrations from first administration of the dosage form to a fasted human. 23. The method of claim 1, wherein said hydrocodone plasma concentrations are hydrocodone plasma concentrations from first administration of the dosage form to a fed human. 24. A method of providing analgesia in a human comprising: orally administering to the human a dosage form comprising from about 5 mg to about 1250 mg of hydrocodone or a pharmaceutically acceptable salt thereof and an excipient, wherein the excipient comprises from 1% to 80% of the dosage form by weight, hydrocodone or a pharmaceutically acceptable salt thereof is the only drug in the dosage form, and the dosage form provides a controlled release of hydrocodone or a pharmaceutically acceptable salt thereof over about 8 to about 24 hours, a hydrocodone plasma concentration of at least about 8 ng/ml from at about 8 hours after administration, and a hydrocodone plasma concentration of about 5 ng/ml or greater at 12 hours after administration. 25. The method of claim 24, wherein the dosage form is a tablet. 26. The method of claim 24, wherein the dosage form provides a hydrocodone plasma concentration of at least about 8 ng/ml at about 2 hours after administration. 27. The method of claim 24, wherein the dosage form provides a plasma concentration profile of hydrocodone with a C12/Cmax hydrocodone ratio of 0.55 to 0.85. 28. The method of claim 27, wherein a portion of the plasma concentration profile of hydrocodone is relatively flat. 29. The method of claim 27, wherein said C12/Cmax hydrocodone ratio is calculated from hydrocodone plasma concentrations from first administration of the dosage form to a fasted human. 30. The method of claim 24, wherein said hydrocodone plasma concentrations are hydrocodone plasma concentrations from first administration of the dosage form to a fed human. 31. A method of providing analgesia in a human comprising: orally administering to the human a dosage form comprising a therapeutically effective amount of hydrocodone or a pharmaceutically acceptable salt thereof, wherein the dosage form releases the hydrocodone or pharmaceutically acceptable salt thereof at such a rate that plasma concentrations of hydrocodone are maintained within the therapeutic range but below toxic concentrations for about 12 hours or longer, hydrocodone or a pharmaceutically acceptable salt thereof is the only drug in the dosage form, the dosage form provides a hydrocodone plasma concentration of at least about 8 ng/ml at about 8 hours after administration, a hydrocodone plasma concentration of about 3.93 ng/ml or greater at 12 hours after administration, and the dosage form is a tablet or a capsule. 32. The method of claim 31, wherein the dosage form comprises 15 mg of hydrocodone bitartrate.