IP Library Granted Patent US 10,640,451
Granted Patent B2
US 10,640,451 · App. 16/601,908 · Granted May 5, 2020

Prodrugs of gamma-hydroxybutyric acid, compositions and uses thereof

Inventors: Jia-Ning Xiang (Palo Alto, CA); Xuesong Xu (Wuhan, CN); Xuan Zhang (Wuhan, CN)
Assignee: XW LABORATORIES INC.
C07C69/78C07B59/001C07C69/22C07C69/24C07C69/28C07C69/34C07C69/608C07C69/612C07C69/618C07C69/738C07C69/74C07C69/76C07C69/96C07C229/08C07C229/34C07C229/36C07C233/47C07C255/57C07C271/22C07C271/34C07C317/14C07C317/44C07D207/12C07D207/16C07D211/44C07D211/46C07D213/79C07D213/80C07D277/30C07D277/56C07D307/68C07D309/12C07D317/64C07D333/38C07C2601/06C07C2601/08C07C2601/14C07C2601/16
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Quick Facts
Patent No.
US 10,640,451
App. No.
16/601,908
Granted
May 5, 2020
Kind
B2
Abstract

The present disclosure discloses prodrugs of gamma-hydroxybutyric acid as well as compositions and uses thereof.

Claims (33)

1. A composition comprising a compound having the structure of Formula II:

or a pharmaceutically acceptable salt thereof.

2. The composition of claim 1 , wherein the composition is a solid.

3. The composition of claim 1 , wherein the composition further comprises a solvent for dissolving or dispersing the compound.

4. The composition of claim 3 , wherein the solvent comprises water.

5. The composition of claim 1 , wherein the composition is in a liquid dosage form.

6. The composition of claim 1 , wherein the composition further comprises a flavoring agent, sucrose, lactose, cellulose sugar, mannitol, maltitol, dextran, sorbitol, starch, agar, alginates, chitins, chitosans, pectins, tragacanth gum, gum arabic, gelatins, collagens, casein, albumin, synthetic or semi-synthetic polymers or glycerides, methyl cellulose, hydroxypropylmethyl-cellulose, or polyvinylpyrrolidone.

7. The composition of claim 1 , wherein the composition further comprises a polymeric excipient.

8. The composition of claim 1 , wherein the composition comprises a tablet, a caplet, a capsule, a gel cap, granules, a pill, a powder, a lozenge, a sachet, a cachet, a suspension, an emulsion, a solution, a slurry, or a syrup.

9. The composition of claim 1 , wherein the composition is formulated in a unit dosage form.

10. The composition of claim 9 , wherein the unit dosage form has a weight from 0.5 grams to 30 grams.

11. The composition of claim 10 , wherein the composition is in a liquid dosage form.

12. The composition of claim 11 , further comprising a pH adjusting agent selected from sodium hydroxide, hydrochloric acid, or malic acid.

13. The composition of claim 1 , wherein the composition is formulated in a form comprising a quick release form.

14. The composition of claim 1 , wherein the composition is formulated in a form comprising a delayed release form.

15. The composition of claim 1 , wherein the composition is formulated in a form comprising a sustained-release form.

16. The composition of claim 1 , wherein the composition consists of a compound having the structure of Formula II:

or a pharmaceutically acceptable salt thereof.

17. The composition of claim 16 , wherein the composition consists of a compound having the structure of Formula II:

18. A method of treating a subject in need thereof, wherein the method comprises administering to the subject a pharmaceutically effective amount of a composition comprising a compound having the structure of Formula II:

or a pharmaceutically acceptable salt thereof, wherein the subject suffers from a disease or condition selected from narcolepsy, excessive daytime sleepiness, cataplexy, fibromyalgia, chronic fatigue, or tardive dyskinesia.

19. The method of claim 18 , wherein the disease or condition is narcolepsy.

20. The method of claim 18 , wherein the disease or condition is excessive daytime sleepiness.

21. The method of claim 18 , wherein the disease or condition is cataplexy.

22. The method of claim 18 , wherein administering to the subject the pharmaceutically effective amount of the composition comprises administering the composition no more than one time per day.

23. The method of claim 18 , wherein administering to the subject the pharmaceutically effective amount of the composition comprises administering the composition orally, nasally, intravenously, subcutaneously, or intramuscularly.

24. The method of claim 23 , wherein administering to the subject the pharmaceutically effective amount of the composition comprises administering the composition orally.

25. The method of claim 24 , wherein administering the composition orally comprises administering the composition in an emulsion, syrup, elixir, suspension, slurry, or solution.

26. The method of claim 25 , wherein administering the composition orally comprises administering the composition in a solution.

27. The method of claim 18 , wherein administering to the subject the pharmaceutically effective amount of the composition comprises administering from 0.5 grams to 30 grams of the composition.

28. The method of claim 18 , wherein administering to the subject the pharmaceutically effective amount of the composition comprises administering a quick-release form comprising the composition.

29. The method of claim 18 , wherein administering to the subject the pharmaceutically effective amount of the composition comprises administering a sustained-release form comprising the composition.

30. The method of claim 18 , wherein administering to the subject the pharmaceutically effective amount of the composition comprises administering a delayed-release form comprising the composition.

Assignments (3)
CHANGE OF NAME Recorded May 4, 2021
From: XW LABORATORIES INC.
To: XWPHARMA LTD.
Reel/Frame 056177/0619 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2020
From: XU, XUESONG; ZHANG, XUAN
To: XW LABORATORIES INC.
Reel/Frame 051495/0170 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 17, 2019
From: XIANG, JIA-NING
To: XW LABORATORIES INC.
Reel/Frame 051305/0393 →
Priority Claims (2)
WO PCT/CN2015/090326 · Sep 23, 2015 · international
CN 2016 1 0782104 · Aug 31, 2016 · national
Continuity (3)
Continuation 16275165 · Feb 13, 2019
Continuation 15762559
Related Publication 20200039917A1 · Feb 6, 2020
Cited By (17)
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