Compositions with a rheological modifier to reduce dissolution variability

• US 9,572,885 B2
• Filed: 03/14/2014
• Issued: 02/21/2017
• Est. Priority Date: 03/15/2013
• Status: Expired due to Fees

• Current Assignee: DURECT Corporation
• Original Assignee: DURECT Corporation
• Inventors: Yum, Su Il, Chao, Wendy, Su, Huey-Ching, Fu, Roger, Zamloot, Michael S., Bratin, Karl, Shanker, Ravi M.
• Primary Examiner(s): Wax, Robert A
• Assistant Examiner(s): Truong, Quanglong
• Application Number:
  US14/776,585
• Publication Number:
  US 20160038592A1
• Time in Patent Office: 1,075 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A61K 31/485 Morphinan derivatives, e.g. morphine, codeine
• CPC Class Codes: A61K 47/02 Inorganic compounds
• CPC Class Codes: A61K 47/14 Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
• CPC Class Codes: A61K 47/26 Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
• CPC Class Codes: A61K 47/38 Cellulose; Derivatives thereof
• CPC Class Codes: A61K 9/4816 Wall or shell material
• CPC Class Codes: A61K 9/485 Inorganic compounds
• CPC Class Codes: A61P 25/04 Centrally acting analgesics, e.g. opioids

Abstract

The present disclosure provides compositions (e.g., extended release compositions) which exhibit a desirable pharmacokinetic profile of an active agent while providing reduced dissolution sample variability, e.g., in the form of reduced inter-capsule variability and/or a reduction in storage-time dependent change in mean release of the active agent from the composition. Related methods of making and administering the disclosed compositions are also provided.

Claims

1. A composition comprising:

a pharmacologically active agent;

a high viscosity liquid carrier material (HVLCM) having a viscosity of at least 5000 cP at 37°

C. that does not crystallize neat at 25°

C. and 1 atmosphere;

a solvent;

a network former;

water; and

a mineral particle, wherein the mineral particle is present in the composition in an amount from 2.4% by weight to about 5.4% by weight relative to the total weight of the composition,

wherein the composition does not comprise more than 2.0% water by weight, based on total weight of the composition.

2. The composition of claim 1, wherein the mineral particle comprises silicon dioxide.

3. The composition of claim 1, wherein the pharmacologically active agent is selected from opioid, stimulant, and depressant.

4. The composition of claim 1, wherein the pharmacologically active agent is an opioid.

5. The composition of claim 1, wherein the pharmacologically active agent is selected from oxycodone, oxymorphone, hydrocodone, and hydromorphone, either in the free base form or a pharmaceutically acceptable salt form thereof.

6. The composition of claim 1, wherein the pharmacologically active agent is oxycodone.

7. The composition of claim 1, wherein the HVLCM is sucrose acetate isobutyrate (SAIB).

8. The composition of claim 1, comprising about 35% by weight to about 45% by weight of the HVLCM relative to the total weight of the composition.

9. The composition of claim 1, wherein the solvent comprises triacetin.

10. The composition of claim 1, comprising about 31% by weight to about 45% by weight of the solvent relative to the total weight of the composition.

11. The composition of claim 1, further comprising a rheology modifier.

12. The composition of claim 11, wherein the rheology modifier is isopropyl myristate (IPM).

13. The composition of claim 11, comprising about 2% by weight to about 10% by weight of the rheology modifier relative to the total weight of the composition.

14. The composition of claim 1, wherein the network former comprises cellulose acetate butyrate (CAB).

15. The composition of claim 1, wherein the network former comprises CAB having a number average molecular weight ranging from 50,000 Daltons to 100,000 Daltons.

16. The composition of claim 1, wherein the network former comprises CAB having at least one feature selected from a butyryl content ranging from about 17% to about 41%, an acetyl content ranging from about 13% to about 30%, and a hydroxyl content ranging from about 0.5% to about 1.7%.

17. The composition of claim 1, further comprising a hydrophilic agent.

18. The composition of claim 17, wherein the hydrophilic agent comprises HEC.

19. The composition of claim 1, wherein the mineral particle is present in the composition in an amount from about 2.5% by weight to about 3.0% by weight relative to the total weight of the composition.

20. The composition of claim 1, wherein the composition is contained within a capsule.

21. The composition of claim 1, wherein the composition is contained within a capsule having a water content of less than about 10% by weight.

22. The composition of claim 1, wherein the composition is contained within a capsule comprising hydroxypropyl methylcellulose.

23. The composition of claim 1, wherein the composition comprises water at from about 1.0 to 2.0% by weight, based on total weight of the composition.

24. The composition of claim 1, wherein the composition does not comprise more than 2.0% water by weight, based on total weight of the composition, following storage of the composition for a period of 12 months at 25°

C. and 60% relative humidity.

25. The composition of claim 1, wherein the composition comprises water at from about 1.0 to about 2.0% by weight, based on total weight of the composition, following storage of the composition for a period of 12 months at 25°

C. and 60% relative humidity.

26. A method for treating pain in a subject, the method comprising orally administering to the subject a composition as defined in claim 1, wherein the composition comprises an opioid, and wherein one or more symptoms or signs associated with the subject'"'"'s pain is alleviated.