IP Library Granted Patent US 8,748,413
Granted Patent B2
US 8,748,413 · App. 13/888,578 · Granted Jun 10, 2014

Benzoic acid, benzoic acid derivatives and heteroaryl carboxylic acid conjugates of hydrocodone, prodrugs, methods of making and use thereof

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Quick Facts
Patent No.
US 8,748,413
App. No.
13/888,578
Granted
Jun 10, 2014
Kind
B2
Abstract

The presently described technology provides compositions comprising aryl carboxylic acids chemically conjugated to hydrocodone (morphinan-6-one, 4,5-alpha-epoxy-3-methoxy-17-methyl) to form novel prodrugs/compositions of hydrocodone, including benzoates and heteroaryl carboxylic acids, which have a decreased potential for abuse of hydrocodone. The present technology also provides methods of treating patients, pharmaceutical kits and methods of synthesizing conjugates of the present technology.

Claims (19)

1. A composition comprising a salt of a conjugate, wherein the conjugate is benzoate-hydrocodone (Bz-HC) having the following structure:

2. The composition of claim 1 , wherein the salt of the conjugate is used to treat narcotic or opioid abuse; to reduce narcotic or opioid withdrawal; to treat moderate to severe pain; to reduce oral, intranasal or intravenous drug abuse; or to provide oral, intranasal or parenteral drug abuse resistance.

3. The composition of claim 1 , wherein the salt of the conjugate exhibits an improved AUC and rate of release over time when compared to unconjugated hydrocodone over the same time period; exhibits less variability in the oral PK profile when compared to unconjugated hydrocodone; or has reduced side effects when compared with unconjugated hydrocodone.

4. The composition of claim 3 , wherein the reduced side effect is gastrointestinal dysfunction.

5. The composition of claim 4 , wherein the gastrointestinal dysfunction is constipation, decreased hydrochloric acid secretion in the stomach, decreased gastric motility, esophageal reflux or combinations thereof.

6. The composition of claim 1 , wherein the salt of the conjugate is provided in a dosage form selected from the group consisting of: a tablet, a capsule, a caplet, a suppository, a troche, a lozenge, an oral powder, a solution, an oral film, a thin strip, a slurry, and a suspension.

7. The composition of claim 6 , wherein the dosage form further comprises at least one excipient.

8. The composition of claim 7 , wherein the excipient is an antiadherent, binder, coating, disintegrant, filler, flavor, color, glidant, lubricant, preservative, sorbent, sweetener or mixtures and combinations thereof.

9. The composition of claim 1 , wherein the salt of the conjugate is provided in an amount sufficient to provide a therapeutically bioequivalent AUC when compared to unconjugated hydrocodone.

10. The composition of claim 1 , wherein the salt of the conjugate is provided in an amount sufficient to provide a therapeutically bioequivalent AUC and C max when compared to an equivalent molar amount of unconjugated hydrocodone.

11. The composition of claim 1 , wherein the salt of the conjugate is provided in an amount sufficient to provide a therapeutically bioequivalent AUC and a lower C max when compared to an equivalent molar amount of unconjugated hydrocodone.

12. The composition of claim 1 , wherein the salt of the conjugate is an acetate, L-aspartate, besylate, bicarbonate, carbonate, D-camsylate, L-camsylate, citrate, edisylate, fumarate, gluconate, hydrobromide/bromide, hydrochloride/chloride, D-lactate, L-lactate, D,L-lactate, D,L-malate, L-malate, mesylate, pamoate, phosphate, succinate, sulfate, D-tartrate, L-tartrate, D,L-tartrate, meso-tartrate, benzoate, gluceptate, D-glucuronate, hybenzate, isethionate, malonate, methylsulfate, 2-napsylate, nicotinate, nitrate, orotate, stearate, tosylate, acefyllinate, aceturate, aminosalicylate, ascorbate, borate, butyrate, camphorate, camphocarbonate, decanoate, hexanoate, cholate, cypionate, dichloroacetate, edentate, ethyl sulfate, furate, fusidate, galactarate, mucate, galacturonate, gallate, gentisate, glutamate, glutarate, glycerophosphate, heptanoate, enanthate, hydroxybenzoate, hippurate, phenylpropionate, iodide, xinafoate, lactobionate, laurate, maleate, mandelate, methanesulfonate, myristate, napadisilate, oleate, oxalate, palmitate, picrate, pivalate, propionate, pyrophosphate, salicylate, salicylsulfate, sulfosalicylate, tannate, terephthalate, thiosalicylate, tribrophenate, valerate, valproate, adipate, 4-acetamidobenzoate, camsylate, octanoate, estolate, esylate, glycolate, thiocyanate, undecylenate or mixtures and combinations thereof.

13. The composition of claim 12 , wherein the salt of the conjugate is a hydrochloride salt.

14. The composition of claim 13 , wherein the ratio of conjugate to salt of the conjugate ranges from about 1:0.1 to about 1:10.

15. The composition of claim 13 , wherein the ratio of conjugate to salt of the conjugate ranges from about 1:0.5 to about 1:2.

16. The composition of claim 13 , wherein the ratio of conjugate to salt of the conjugate is about 1:1.

17. The composition of claim 1 , wherein the composition includes from about 0.5 mg to about 100 mg of the salt of the conjugate.

18. The composition of claim 1 , wherein the composition is in a pharmaceutical kit.

19. The composition of claim 18 , wherein the pharmaceutical kit contains from about 1 to about 100 individual dosages.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Mar 13, 2026
From: ALTER DOMUS (US) LLC
To: ZEVRA THERAPEUTICS, INC.
Reel/Frame 075080/0907 →
SECURITY INTEREST Recorded Apr 8, 2024
From: ZEVRA THERAPEUTICS, INC.
To: ALTER DOMUS (US) LLC
Reel/Frame 067040/0637 →
CHANGE OF NAME Recorded Feb 23, 2024
From: KEMPHARM, INC.
To: ZEVRA THERAPEUTICS, INC.
Reel/Frame 066664/0108 →
RELEASE OF SECURITY INTEREST Recorded Jul 9, 2021
From: DEERFIELD PRIVATE DESIGN FUND III, L.P.
To: KEMPHARM, INC.
Reel/Frame 056803/0133 →
SECURITY INTEREST Recorded Feb 28, 2020
From: KEMPHARM, INC.
To: DEERFIELD PRIVATE DESIGN FUND III, L.P.
Reel/Frame 051968/0714 →
SECURITY INTEREST Recorded Jun 3, 2014
From: KEMPHARM, INC.
To: DEERFIELD PRIVATE DESIGN FUND III, L.P.
Reel/Frame 033079/0927 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2013
From: MICKLE, TRAVIS; GUENTHER, SVEN; MICKLE, CHRISTAL; CHI, GUOCHEN; KANSKI, JAROSLAW; MARTIN, ANDREA K.; BERA, BINDU
To: KEMPHARM, INC.
Reel/Frame 030523/0208 →