Amorphous solid dispersions of dasatinib and uses thereof
Amorphous solid dispersions and pharmaceutical compositions of the protein kinase inhibitor dasatinib. The pharmaceutical compositions may be used in methods of treating a proliferative disorder such as cancer, or in methods of delivering dasatinib to patients without regard to whether the patient is concurrently administered a gastric acid-reducing agent, or without regard to whether the patient has an elevated gastric pH. The compositions may be particularly suitable for patients afflicted by achlorhydria or hypochlorhydria, or Helicobacter pylori infection.
1. A method of treating a proliferative disorder in a patient in need thereof, the method comprising:
(a) administering to the patient a pharmaceutical composition comprising an amorphous solid dispersion, the amorphous solid dispersion comprising dasatinib and a polymer or copolymer of N-vinylpyrrolidone; and
(b) co-administering to the patient a gastric acid-reducing agent without a detrimental reduction in the exposure of dasatinib.
2. The method of claim 1 , wherein the polymer or copolymer of N-vinylpyrrolidone includes polyvinylpyrrolidone.
3. The method of claim 1 , wherein the polymer or copolymer of N-vinylpyrrolidone includes a vinylpyrrolidone/vinyl acetate copolymer.
4. The method of claim 1 , wherein the gastric acid-reducing agent is administered to the patient shortly before the pharmaceutical composition is administered.
5. The method of claim 1 , wherein the gastric acid-reducing agent is administered to the patient concurrently with the administration of the pharmaceutical composition.
6. The method of claim 1 , wherein the gastric acid-reducing agent is administered to the patient shortly after the pharmaceutical composition is administered.
7. The method of claim 1 , wherein the amorphous solid dispersion includes one or more functional components selected from the group consisting of antioxidants, wetting agents, and solubilizers.
8. The method of claim 1 , wherein the pharmaceutical composition comprises the amorphous solid dispersion and one or more pharmaceutically acceptable additives.
9. The method of claim 8 , wherein the one or more pharmaceutically acceptable additives includes one or more solubilizers.
10. The method of claim 9 , wherein the one or more solubilizers comprises polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer.
11. The method of claim 1 , wherein the dasatinib is in the amorphous solid dispersion as dasatinib free base or dasatinib hydrochloride.
12. The method of claim 1 , wherein the pharmaceutical composition is a gastric acid-insensitive composition.
13. A treatment regimen for treating a proliferative disorder in a patient in need thereof, the regimen comprising:
(a) administering to the patient a first dose, the first dose comprising a standard dosage of a proton pump inhibitor or an H 2 antagonist; and
(b) within 12 hours after the first dose, administering a second dose to the patient, the second dose comprising a therapeutically effective amount of a pharmaceutical composition comprising an amorphous solid dispersion, the amorphous solid dispersion comprising dasatinib and a polymer or copolymer of N-vinylpyrrolidone;
wherein the therapeutically effective amount comprises 20 mg to 140 mg dasatinib; and
wherein the second dose provides a therapeutically relevant exposure of dasatinib to the patient.
14. The treatment regimen of claim 13 , wherein the first dose comprises a standard dosage of a proton pump inhibitor.
15. The treatment regimen of claim 14 , wherein the first dose comprises a standard dosage of a proton pump inhibitor selected from rabeprazole, esomeprazole, lansoprazole, omeprazole, pantoprazole, dexlansoprazole, or a combination thereof.
16. The treatment regimen of claim 13 , wherein the first dose comprises a standard dosage of an H 2 antagonist.
17. The treatment regimen of claim 16 , wherein the first dose comprises a standard dosage of an H 2 antagonist selected from famotidine, cimetidine, nizatidine, ranitidine, or a combination thereof.
18. The treatment regimen of claim 13 , wherein the second dose is administered within 8 hours after the first dose.
19. The treatment regimen of claim 13 , wherein the second dose is administered within 6 hours after the first dose.
20. The treatment regimen of claim 13 , wherein the second dose is administered within 4 hours after the first dose.
21. The treatment regimen of claim 13 , wherein the polymer or copolymer of N-vinylpyrrolidone includes polyvinylpyrrolidone.
22. The treatment regimen of claim 13 , wherein the polymer or copolymer of N-vinylpyrrolidone includes a vinylpyrrolidone/vinyl acetate copolymer.
23. The treatment regimen of claim 13 , wherein the amorphous solid dispersion includes one or more functional components selected from the group consisting of antioxidants, wetting agents, and solubilizers.
24. The treatment regimen of claim 13 , wherein the pharmaceutical composition comprises the amorphous solid dispersion and one or more pharmaceutically acceptable additives.
25. The treatment regimen of claim 24 , wherein the one or more pharmaceutically acceptable additives includes one or more solubilizers.
26. The treatment regimen of claim 25 , wherein the one or more solubilizers comprises polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer.
27. The treatment regimen of claim 13 , wherein the dasatinib is in the amorphous solid dispersion as dasatinib free base or dasatinib hydrochloride.
28. The treatment regimen of claim 13 , wherein the pharmaceutical composition is a gastric acid-insensitive composition.