Valbenazine salts and polymorphs thereof
Provided herein are salts of (S)-2-amino-3-methyl-butyric acid (2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl ester in amorphous and crystalline forms, and processes of preparation, and pharmaceutical compositions thereof. Also provided are methods of their use for treating, preventing, or ameliorating one or more symptoms of neurological disorders and diseases including hyperkinetic movement disorders or diseases.
1. A crystalline form of (S)-2-amino-3-methyl-butyric acid (2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl ester tosylate salt having a differential scanning calorimetric (DSC) onset temperature within 2% of 240° C.
2. The crystalline form of claim 1 , wherein the DSC onset temperature is within 1% of 240° C.
3. The crystalline form of claim 1 , wherein the DSC onset temperature is within 0.5% of 240° C.
4. The crystalline form of claim 1 , wherein the crystalline form has an X-ray powder diffraction (XRPD) pattern comprising a peak at a two-theta angle of 6.3°±0.2°.
5. The crystalline form of claim 1 , wherein the crystalline form has an X-ray powder diffraction (XRPD) pattern comprising a peak at a two-theta angle of 17.9°±0.2°.
6. The crystalline form of claim 1 , wherein the crystalline form has an X-ray powder diffraction (XRPD) pattern comprising a peak at a two-theta angle of 19.7°±0.2°.
7. The crystalline form of claim 1 , wherein the crystalline form is stable upon exposure to about 25° C. and about 60% relative humidity.
8. The crystalline form of claim 1 , wherein the crystalline form has a D90 particle size of about 70 μM in length.
9. The crystalline form of claim 1 , wherein the crystalline form has a D10 particle size of about 10 μM in length.
10. The crystalline form of claim 1 , wherein the crystalline form has a purity of no less than 97% by weight of (S)-2-amino-3-methyl-butyric acid (2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl ester tosylate salt.
11. The crystalline form of claim 1 , wherein the crystalline form has a purity of no less than 98% by weight of (S)-2-amino-3-methyl-butyric acid (2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl ester tosylate salt.
12. The crystalline form of claim 1 , wherein the crystalline form has a purity of no less than 97% by weight of (S)-2-amino-3-methyl-butyric acid (2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl ester tosylate salt; and has an X-ray powder diffraction (XRPD) pattern comprising peaks at two-theta angles of 6.3°±0.2°, 17.9°±0.2°, and 19.7°±0.2°.
13. The crystalline form of claim 1 , wherein the (S)-2-amino-3-methyl-butyric acid (2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2,1-a]isoquinolin-2-yl ester tosylate salt is:
14. A pharmaceutical composition comprising the crystalline form of claim 1 and a pharmaceutically acceptable carrier.
15. The pharmaceutical composition of claim 14 , wherein the composition is formulated for oral administration.
16. The pharmaceutical composition of claim 14 , wherein the pharmaceutical composition is a unit dosage form.
17. The pharmaceutical composition of claim 14 , wherein the pharmaceutical composition is in the form of a capsule.
18. A pharmaceutical composition comprising the crystalline form of claim 12 and a pharmaceutically acceptable carrier.
19. The pharmaceutical composition of claim 18 , wherein the composition is formulated for oral administration.
20. The pharmaceutical composition of claim 18 , wherein the pharmaceutical composition is a unit dosage form.
21. The pharmaceutical composition of claim 18 , wherein the pharmaceutical composition is in the form of a capsule.
22. A pharmaceutical composition comprising the crystalline form of claim 13 and a pharmaceutically acceptable carrier.
23. The pharmaceutical composition of claim 22 , wherein the composition is formulated for oral administration.
24. The pharmaceutical composition of claim 22 , wherein the pharmaceutical composition is a unit dosage form.
25. The pharmaceutical composition of claim 22 , wherein the pharmaceutical composition is in the form of a capsule.
26. A method of treating a hyperkinetic movement disorder comprising administering the crystalline form of claim 1 , wherein the treating is ameliorating one or more symptoms of the hyperkinetic movement disorder.
27. The method of claim 26 , wherein the hyperkinetic movement disorder is tardive dyskinesia.