Claims for Patent: 10,912,771

Summary for Patent: 10,912,771

Title:	Methods for the administration of certain VMAT2 inhibitors
Abstract:	Provided are methods of administering a vesicular monoamine transport 2 (VMAT2) inhibitor chosen from valbenazine and (+)-.alpha.-3-isobutyl-9,10-dimethoxy-1,3,4,6,7,11b-hexahydro-2H-pyrido[2- ,1-a]isoquinolin-2-ol, or a pharmaceutically acceptable salt and/or isotopic variant thereof to a patient in need thereof wherein the patient is being treated with a strong cytochrome P450 3A4 (CYP3A4) inducer.
Inventor(s):	O'Brien; Christopher F. (San Diego, CA), Bozigian; Haig P. (San Diego, CA)
Assignee:	Neurocrine Biosciences, Inc. (San Diego, CA)
Application Number:	17/073,304
Patent Claims:	1. A method of treating a patient with a hyperkinetic movement disorder, wherein the patient is being administered a strong cytochrome P450 3A4 (CYP3A4) inducer, comprising: discontinuing treatment of the strong CYP3A4 inducer, and then orally administering once daily to the patient a therapeutically effective amount of a vesicular monoamine transporter 2 (VMAT2) inhibitor chosen from (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 and a pharmaceutically acceptable salt thereof, thereby avoiding the concomitant use of the VMAT2 inhibitor with the strong CYP3A4 inducer. 2. The method of claim 1, wherein the strong CYP3A4 inducer is chosen from nevirapine, pentobarbital, phenytoin, lumacaftor, rifabutin, rifampicin, carbamazepine, fosphenytoin, phenobarbital, primidone, enzalutamide, mitotane, and St. John's Wort. 3. The method of claim 1, wherein the strong CYP3A4 inducer is chosen from rifampicin, carbamazepine, phenytoin, and St. John's Wort. 4. The method of claim 1, wherein the strong CYP3A4 inducer is rifampicin. 5. The method of claim 1, wherein the VMAT2 inhibitor is administered in the form of a capsule. 6. The method of claim 1, wherein the hyperkinetic movement disorder is tardive dyskinesia. 7. The method of claim 1, wherein the hyperkinetic movement disorder is chorea. 8. The method of claim 1, wherein the hyperkinetic movement disorder is chorea associated with Huntington's disease. 9. The method of claim 1, wherein the VMAT2 inhibitor is a pharmaceutically acceptable salt 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. 10. The method of claim 1, wherein the VMAT2 inhibitor is a ditosylate salt 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]i- soquinolin-2-yl ester. 11. The method of claim 1, wherein the ditosylate salt 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 is in polymorphic Form I. 12. The method of claim 1, wherein the therapeutically effective amount is an amount equivalent to about 40 mg as measured by (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 free base once daily for one week, and an amount equivalent to about 80 mg as measured by (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 free base once daily after one week. 13. The method of claim 1, wherein the therapeutically effective amount is an amount equivalent to about 40 mg as measured by (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 free base once daily. 14. The method of claim 1, wherein the therapeutically effective amount is an amount equivalent to about 60 mg as measured by (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 free base once daily. 15. The method of claim 1, wherein the therapeutically effective amount is an amount equivalent to about 80 mg as measured by (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 free base once daily.