Abuse-resistant amphetamine prodrugs
View Patent ↗The invention describes compounds, compositions, and methods of using the same comprising a chemical moiety covalently attached to amphetamine. These compounds and compositions are useful for reducing or preventing abuse and overdose of amphetamine. These compounds and compositions find particular use in providing an abuse-resistant alternative treatment for certain disorders, such as attention deficit hyperactivity disorder (ADHD), ADD, narcolepsy, and obesity. Oral bioavailability of amphetamine is maintained at therapeutically useful doses. At higher doses bioavailability is substantially reduced, thereby providing a method of reducing oral abuse liability. Further, compounds and compositions of the invention decrease the bioavailability of amphetamine by parenteral routes, such as intravenous or intranasal administration, further limiting their abuse liability.
1. A composition comprising from 25 to 75 mg of L-lysine-d-amphetamine or a salt thereof and having an amphetamine base amount of from 7.37 to 22.1 mg of said amphetamine, said L-lysine-d-amphetamine or a salt thereof providing at least one property selected from the group consisting of a mean AUC 0-12 h (ng h/mL) from 205.4±42.5 to 611.5±104.5, a mean AUC last (ng h/mL) from 396.7±84.8 to 1237.0±194.0, a mean AUC inf (ng h/mL) from 415.0±80.1 to 1259.5±191.3, a mean C max (ng/mL) from 25.0±5.6 to 74.0±12.9, a mean T max (hours) from 3.1±0.876 to 3.9±1.0, and a mean T 1/2 (hours) from 9.68±1.43 to 10.3±1.7 of amphetamine when orally administered to a human subject.
2. A composition as defined in claim 1 , wherein said L-lysine-d-amphetamine is in the form of a salt.
3. A composition as defined in claim 2 , wherein said salt is a mesylate salt.
4. A composition as defined in claim 3 , wherein said salt is a dimesylate salt.
5. A composition as defined in claim 2 , wherein said salt is a hydrochloride salt.
6. A composition as defined in claim 1 , wherein said composition is in a dosage form selected from the group consisting of a tablet, capsule, caplet, oral solution, and oral suspension.
7. A composition as defined in claim 6 , wherein said dosage form further comprises a pharmacological substance selected from the group consisting of amphetamines, antidepressants, anxiolytics, non-steroidal anti-inflammatory drugs, or any combination of any of the foregoing.
8. A composition comprising 25 mg of L-lysine-d-amphetamine or a salt thereof and having an amphetamine base amount of 7.37 mg of said amphetamine, said L-lysine-d-amphetamine or a salt thereof providing at least one property selected from the group consisting of a mean AUC 0-12 h (ng h/mL) of 205.4±42.5, a mean AUC last (ng h/mL) of 396.7±84.8, a mean AUC inf (ng h/mL) of 415.0±80.1, a mean C max (ng/mL) of 25.0±5.6, a mean T max (hours) of 3.1±0.876, and a mean T 1/2 (hours) of 9.68±1.43 of amphetamine when orally administered to a human subject.
9. A composition as defined in claim 8 , wherein said L-lysine-d-amphetamine is in the form of a salt.
10. A composition as defined in claim 9 , wherein said salt is a mesylate salt.
11. A composition as defined in claim 10 , wherein said salt is a dimesylate salt.
12. A composition as defined in claim 9 , wherein said salt is a hydrochloride salt.
13. A composition as defined in claim 8 , wherein said composition is in a dosage form selected from the group consisting of a tablet, capsule, caplet, oral solution, and oral suspension.
14. A composition as defined in claim 13 , wherein said dosage form further comprises a pharmacological substance selected from the group consisting of amphetamines, antidepressants, anxiolytics, non-steroidal anti-inflammatory drugs, or any combination of any of the foregoing.
15. A composition comprising 75 mg of L-lysine-d-amphetamine or a salt thereof and having an amphetamine base amount of 22.1 mg of said amphetamine, said L-lysine-d-amphetamine or a salt thereof providing at least one property selected from the group consisting of a mean AUC 0-12 h (ng h/mL) of 611.5±104.5, a mean AUC last (ng h/mL) of 1237.0±194.0, a mean AUC inf (ng h/mL) of 1259.5±191.3, a mean C max (ng/mL) of 74.0±12.9, a mean T max (hours) of 3.9±1.0, and a mean T 1/2 (hours) of 10.3±1.7 of amphetamine when orally administered to a human subject.
16. A composition as defined in claim 15 , wherein said L-lysine-d-amphetamine is in the form of a salt.
17. A composition as defined in claim 16 , wherein said salt is a mesylate salt.
18. A composition as defined in claim 17 , wherein said salt is a dimesylate salt.
19. A composition as defined in claim 16 , wherein said salt is a hydrochloride salt.
20. A composition as defined in claim 15 , wherein said composition is in a dosage form selected from the group consisting of a tablet, capsule, caplet, oral solution, and oral suspension.
21. A composition as defined in claim 20 , wherein said dosage form further comprises a pharmacological substance selected from the group consisting of amphetamines, antidepressants, anxiolytics, non-steroidal anti-inflammatory drugs, or any combination of any of the foregoing.
22. A composition comprising from 25 to 75 mg of L-lysine-d-amphetamine or a salt thereof and having an amphetamine base amount of from 7.37 to 22.1 mg of said amphetamine, said L-lysine-d-amphetamine or a salt thereof providing at least one property selected from the group consisting of a mean AUC last (ng h/mL) from 11.32±3.74 to 58.1±35.2 a mean AUC inf (ng h/mL) from 13.5±3.40 to 59.5±29.9, a mean C max (ng/mL) from 11.56±3.8 to 53.6±34.1, a mean T max (hours) of 1.05±0.16, and a mean T 1/2 (hours) from 0.419±0.077 to 0.534±0.211 of intact L-lysine-d-amphetamine or a salt thereof when orally administered to a human subject.
23. A composition as defined in claim 22 , wherein said L-lysine-d-amphetamine is in the form of a salt.
24. A composition as defined in claim 23 , wherein said salt is a mesylate salt.
25. A composition as defined in claim 24 , wherein said salt is a dimesylate salt.
26. A composition as defined in claim 23 , wherein said salt is a hydrochloride salt.
27. A composition as defined in claim 22 , wherein said composition is in a dosage form selected from the group consisting of a tablet, capsule, caplet, oral solution, and oral suspension.
28. A composition as defined in claim 27 , wherein said dosage form further comprises a pharmacological substance selected from the group consisting of amphetamines, antidepressants, anxiolytics, non-steroidal anti-inflammatory drugs, or any combination of any of the foregoing.
29. A composition comprising 25 mg of L-lysine-d-amphetamine or a salt thereof and having an amphetamine base amount of 7.37 mg of said amphetamine, said L-lysine-d-amphetamine or a salt thereof providing at least one property selected from the group consisting of a mean AUC last (ng h/mL) of 11.32±3.74, a mean AUC inf (ng h/mL) of 13.5±3.40, a mean C max (ng/mL) of 11.56±3.8 a mean T max (hours) of 1.05±0.16, and a mean T 1/2 (hours) of 0.419±0.077 of intact L-lysine-d-amphetamine or a salt thereof when orally administered to a human subject.
30. A composition as defined in claim 29 , wherein said L-lysine-d-amphetamine is in the form of a salt.
31. A composition as defined in claim 30 , wherein said salt is a mesylate salt.
32. A composition as defined in claim 31 , wherein said salt is a dimesylate salt.
33. A composition as defined in claim 30 , wherein said salt is a hydrochloride salt.
34. A composition as defined in claim 29 , wherein said composition is in a dosage form selected from the group consisting of a tablet, capsule, caplet, oral solution, and oral suspension.
35. A composition as defined in claim 34 , wherein said dosage form further comprises a pharmacological substance selected from the group consisting of amphetamines, antidepressants, anxiolytics, non-steroidal anti-inflammatory drugs, or any combination of any of the foregoing.
36. A composition comprising 75 mg of L-lysine-d-amphetamine or a salt thereof and having an amphetamine base amount of 22.1 mg of said amphetamine, said L-lysine-d-amphetamine or a salt thereof providing at least one property selected from the group consisting of a mean AUC last (ng h/mL) of 58.1±30.2, a mean AUC inf (ng h/mL) of 59.5±29.9, a mean C max (ng/mL) of 53.6±34.1, a mean T max (hours) of 1.05±0.16, and a mean T 1/2 (hours) of 0.534±0.211 of intact L-lysine-d-amphetamine or a salt thereof when orally administered to a human subject.
37. A composition as defined in claim 36 , wherein said L-lysine-d-amphetamine is in the form of a salt.
38. A composition as defined in claim 37 , wherein said salt is a mesylate salt.
39. A composition as defined in claim 38 , wherein said salt is a dimesylate salt.
40. A composition as defined in claim 37 , wherein said salt is a hydrochloride salt.
41. A composition as defined in claim 36 , wherein said composition is in a dosage form selected from the group consisting of a tablet, capsule, caplet, oral solution, and oral suspension.
42. A composition as defined in claim 41 , wherein said dosage form further comprises a pharmacological substance selected from the group consisting of amphetamines, antidepressants, anxiolytics, Non-steroidal anti-inflammatory drugs, or any combination of any of the foregoing.
43. A method, in a subject in need thereof, of treating attention deficit hyperactivity disorder, said method comprising administering to said subject a composition as defined in any of claims 1 , 8 , 15 , 22 , 29 , and 36 .