US2018236078A1PendingUtilityA1

Compositions with a Rheological Modifier to Reduce Dissolution Variability

70
Assignee: DURECT CORPPriority: Mar 15, 2013Filed: Jan 16, 2018Published: Aug 23, 2018
Est. expiryMar 15, 2033(~6.7 yrs left)· nominal 20-yr term from priority
A61K 47/26A61K 31/485A61K 47/02A61K 9/485A61K 9/4816A61P 25/04A61K 47/38A61K 47/14
70
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Claims

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 and formulations are also provided.

Claims

exact text as granted — not AI-modified
1 . A composition comprising:
 a pharmacologically active agent;   about 35% by weight to about 45% by weight, based on total weight of the composition, of 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;   about 31% by weight to about 45% by weight, based on total weight of the composition, of a solvent;   about 2% by weight to about 10% by weight, based on total weight of the composition, of a rheology modifier; and   a cellulose acetate butyrate.   
     
     
         2 . The composition of  claim 1 , wherein the HVLCM is sucrose acetate isobutyrate (SAIB). 
     
     
         3 .- 5 . (canceled) 
     
     
         6 . The composition of  claim 1 , wherein the HVLCM is sucrose acetate isobutyrate (SAIB), the solvent is triacetin, and the rheology modifier is isopropyl myristate (IPM). 
     
     
         7 .- 10 . (canceled) 
     
     
         11 . The composition of  claim 1 , wherein the pharmacologically active agent is selected from opioid, stimulant, and depressant. 
     
     
         12 . The composition of  claim 11 , wherein the pharmacologically active agent is an opioid. 
     
     
         13 . The composition of  claim 11 , 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. 
     
     
         14 . The composition of  claim 11 , wherein the pharmacologically active agent is oxycodone. 
     
     
         15 .- 91 . (canceled) 
     
     
         92 . 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 rheology modifier; and   a cellulose acetate butyrate,   wherein the composition is encapsulated within a hydroxypropylmethylcellulose capsule, and   wherein the composition within the capsule comprises less than 5% water by weight, based on total weight of the composition within the capsule.   
     
     
         93 . The composition of  claim 92 , wherein the composition comprises less than 2% water by weight, based on total weight of the composition. 
     
     
         94 . The composition of  claim 92 , wherein the HVLCM is sucrose acetate isobutyrate (SAIB). 
     
     
         95 . (canceled) 
     
     
         96 . The composition of  claim 92 , wherein the HVLCM is sucrose acetate isobutyrate (SAIB), the solvent is triacetin, and the rheology modifier is isopropyl myristate (IPM). 
     
     
         97 - 100 . (canceled) 
     
     
         101 . The composition of  claim 92 , wherein the pharmacologically active agent is selected from opioid, stimulant, and depressant. 
     
     
         102 . The composition of  claim 101 , wherein the pharmacologically active agent is an opioid. 
     
     
         103 . The composition of  claim 101 , 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. 
     
     
         104 . The composition of  claim 101 , wherein the pharmacologically active agent is oxycodone. 
     
     
         105 .- 295 . (canceled) 
     
     
         296 . A composition comprising:
 an opioid;   sucrose acetate isobutyrate (SAM);   triacetin;   isopropyl myristate (IPM);   cellulose acetate butyrate (CAB);   hydroxyethyl cellulose (HEC); and   silicon dioxide, wherein the silicon dioxide is present in the composition in an amount from about 2.4% by weight to about 5.4% by weight relative to the total weight of the composition.   
     
     
         297 .- 299 . (canceled) 
     
     
         300 . The composition of  claim 296 , wherein the CAB has a number average molecular weight ranging from 66,000 Daltons to 83,000 Daltons. 
     
     
         301 . The composition of  claim 296 , wherein the CAB has at least one feature selected from a butyryl content ranging from about 17% to about 38%, an acetyl content ranging from about 13% to about 30%, and a hydroxyl content ranging from about 0.8% to about 1.7%. 
     
     
         302 .- 304 . (canceled) 
     
     
         305 . The composition of  claim 296 , wherein the silicon dioxide is present in the composition in an amount from about 2.5% by weight to about 2.9% by weight relative to the total weight of the composition. 
     
     
         306 .- 309 . (canceled) 
     
     
         310 . The composition of  claim 296 , wherein the opioid is oxycodone. 
     
     
         311 .- 586 . (canceled)

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