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Claims for Patent: 8,877,247

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Claims for Patent: 8,877,247

Title:Abuse-deterrent multi-layer pharmaceutical composition comprising an opioid antagonist and an opioid agonist
Abstract: Provided herein is a pharmaceutical composition comprising an antagonist, an agonist, a seal coat, and a sequestering polymer, wherein the antagonist, agonist, seal coat and at least one sequestering polymer are all components of a single unit, and wherein the seal coat forms a layer physically separating the antagonist from the agonist from one another. Methods for manufacturing such a pharmaceutical composition are also provided.
Inventor(s): Matthews; Frank (Edison, NJ), Boehm; Garth (Westfield, NJ), Tang; Lijuan (Flemington, NJ), Liang; Alfred (Edison, NJ)
Assignee: Alpharma Pharmaceuticals LLC (Bridgewater, NJ)
Application Number:12/710,016
Patent Claims: 1. A composition comprising a plurality of multi-layer pellets comprising: a. a water-soluble core; b. an opioid antagonist comprising layer coating the core, wherein the opioid antagonist is selected from the group consisting of naltrexone, naloxone, nalmefene, cyclazacine, levallorphan, salts of these molecules, and combinations thereof; c. a sequestering polymer layer coating the opioid antagonist comprising layer; d. an osmotic pressure regulating agent comprising layer coating the sequestering polymer layer, wherein the osmotic pressure regulating agent is selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, hydroxypropyl methyl cellulose, and combinations thereof; wherein the sequestering polymer layer comprises copolymers of acrylic and methacrylic acid esters with quaternary ammonium groups, a surfactant in an amount from 1.6% to 6.3% of the copolymers of acrylic and methacrylic acid esters with quaternary ammonium groups on a weight-to-weight basis, and talc in an amount of from 75% to 125% of the copolymers of acrylic and methacrylic acid esters with quaternary ammonium groups on a weight-to-weight basis; and wherein the surfactant is selected from the group consisting of sodium lauryl sulfate, sodium docusate, dioctyl sodium sulphosuccinate, sodium lauryl sarcosinate, sodium methyl cocyl taurate, magnesium lauryl sulfate, dioctyl sodiumsulfosuceinate, sodiumdodecylbenzene sulfonate, and combinations thereof.

2. The composition of claim 1, wherein the surfactant is not comprised in the following: the water-soluble core, the opioid antagonist comprising layer, the osmotic pressure regulating agent comprising layer, the opioid agonist comprising layer, and the controlled release layer.

3. The composition of claim 1, wherein when tested by a testing method, the composition sequesters at least 80% of the opioid antagonist as determined at 73 hours from the start of the testing method, wherein the testing method consists of first placing the composition in 500 mL of a 0.1 N HCl solution for 1 hour at 37.degree. C. using USP paddle method, 100 rotations per minute, and then placing the composition in 500 mL of a pH 7.5, 0.05 M phosphate buffer, for 72 hours at 37.degree. C. using USP paddle method, 100 rotations per minute, and then determining the amount of the opioid antagonist sequestered.

4. The composition of claim 1, wherein the surfactant is not comprised in the following: the water-soluble core, the opioid antagonist comprising layer, the osmotic pressure regulating agent comprising layer, and wherein when tested by a testing method, the composition sequesters at least 80% of the opioid antagonist as determined at 73 hours from the start of the testing method, wherein the testing method consists of first placing the composition in 500 mL of a 0.1 N HCI solution for 1 hour at 37.degree. C. using USP paddle method, 100 rotations per minute, and then placing the composition in 500 mL of a pH 7.5, 0.05 M phosphate buffer, for 72 hours at 37.degree. C. using USP paddle method, 100 rotations per minute, and then determining the amount of the opioid antagonist sequestered.

5. The composition of claim 1, wherein the osmotic pressure regulating agent comprises sodium chloride; wherein the surfactant is sodium lauryl sulfate; and wherein when tested by a testing method, the composition sequesters at least 80% of the salt of the opioid antagonist as determined at 73 hours from the start of the testing method, wherein the testing method consists of first placing the composition in 500 mL of a 0.1 N HCI solution for 1 hour at 37.degree. C. using USP paddle method, 100 rotations per minute, and then placing the composition in 500 mL of a pH 7.5, 0.05 M phosphate buffer, for 72 hours at 37.degree. C. using USP paddle method, 100 rotations per minute, and then determining the amount of the opioid antagonist sequestered.

6. The composition of claim 1, wherein the opioid antagonist is the salt of naltrexone; wherein the osmotic pressure regulating agent comprises sodium chloride; wherein the surfactant is sodium lauryl sulfate; wherein the opioid agonist comprising layer comprises morphine sulfate and further comprises hydroxypropyl cellulose; and wherein when tested by a testing method, the composition sequesters at least 80% of the salt of naltrexone as determined at 73 hours from the start of the testing method, wherein the testing method consists of first placing the composition in 500 mL of a 0.1 N HCI solution for 1 hour at 37.degree. C. using USP paddle method, 100 rotations per minute, and then placing the composition in 500 mL of a pH 7.5, 0.05 M phosphate buffer, for 72 hours at 37.degree. C. using USP paddle method, 100 rotations per minute, and then determining the amount of the salt of naltrexone sequestered.

7. The composition of claim 1, wherein the opioid antagonist is naltrexone HCI; wherein the osmotic pressure regulating agent comprises sodium chloride; wherein the surfactant is sodium lauryl sulfate; and wherein when tested by a testing method, the composition sequesters at least 80% of the naltrexone HCI as determined at 73 hours from the start of the testing method, wherein the testing method consists of first placing the composition in 500 mL of a 0.1 N HCI solution for 1 hour at 37.degree. C. using USP paddle method, 100 rotations per minute, and then placing the composition in 500 mL of a pH 7.5, 0.05 M phosphate buffer, for 72 hours at 37.degree. C. using USP paddle method, 100 rotations per minute, and then determining the amount of the naltrexone HCI sequestered.

8. The composition of claim 1, wherein the opioid antagonist is naltrexone HCI; and wherein the surfactant is sodium lauryl sulfate.

9. The composition of claim 1, wherein the opioid antagonist is naltrexone HCI; wherein the surfactant is sodium lauryl sulfate. and wherein the osmotic pressure regulating agent comprises sodium bromide.

10. The composition of claim 1, wherein the opioid antagonist is naltrexone HCI; wherein the surfactant is sodium lauryl sulfate; and wherein the osmotic pressure regulating agent comprises sodium iodide.

11. The composition of claim 1, wherein the opioid antagonist is naltrexone HCI; wherein the surfactant is sodium lauryl sulfate; and wherein the osmotic pressure regulating agent comprises hydroxypropyl methyl cellulose.

12. The composition of claim 1, wherein the composition does not comprise a bittering agent, a gelling agent, an irritant, or an emetic.

13. The composition of claim 1, wherein opioid antagonist is not comprised in the following: the water-soluble core, the sequestering polymer layer, and the osmotic pressure regulating agent comprising layer.

14. A composition comprising a plurality of multi-layer pellets comprising: a. a water-soluble core; b. an opioid antagonist comprising layer coating the core, wherein the opioid antagonist is selected from the group consisting of naltrexone, naloxone, nalmefene, cyclazacine, levallorphan, salts of these molecules, and combinations thereof; c. a sequestering polymer layer coating the opioid antagonist comprising layer; d. an osmotic pressure regulating agent comprising layer coating the sequestering polymer layer, wherein the osmotic pressure regulating agent is selected from the group consisting of sodium chloride, sodium bromide, sodium iodide, hydroxypropyl methyl cellulose, and combinations thereof; e. an opioid agonist comprising layer coating the osmotic pressure regulating agent comprising layer, wherein the opioid agonist is selected from the group consisting of oxycodone, a salt of oxycodone, and combinations thereof; and f. a controlled release layer coating the opioid agonist comprising layer; wherein the sequestering polymer layer comprises copolymers of acrylic and methacrylic acid esters with quatemary ammonium groups, a surfactant in an amount from 1.6% to 6.3% of the copolymers of acrylic and methacrylic acid esters with quaternary ammonium groups on a weight-to-weight basis, and talc in an amount of from 75% to 125% of the copolymers of acrylic and methacrylic acid esters with quaternary ammonium groups on a weight-to-weight basis; and wherein the surfactant is selected from the group consisting of sodium lauryl sulfate, sodium docusate, dioctyl sodium sulphosuccinate, sodium lauryl sarcosinate, sodium methyl cocyl taurate, magnesium lauryl sulfate, dioctyl sodiumsulfosuceinate, sodiumdodecylbenzene sulfonate, and combinations thereof.

15. The composition according to any of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 which further comprises an opioid agonist selected from the group consisting of morphine, oxycodone, hydrocodone, hydromorphone, dihydrocodeine, codeine, dihydromorphine, buprenorphine, salts of these molecules, and combinations thereof.

16. The composition according to claim 15 in which said agonist is morphine or a pharmaceutically acceptable salt thereof.
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