Claims for Patent: 7,968,543

Summary for Patent: 7,968,543

Title:	Methods of administering N-(5-tert-butyl-isoxazol-3-yl)-N′-{4-[7-(2-morpholin-4-yl-ethoxy)imidazo[2,1-b][1,3]benzothiazol-2-yl]phenyl}urea to treat proliferative disease
Abstract:	Provided herein are methods of administering N-(5-tert-butyl-isoxazol-3-yl)-N′-{4-[7-(2-morpholin-4-yl-ethoxy)imidazo[2,1-b][1,3]benzothiazol-2-yl]phenyl}urea, or a pharmaceutically acceptable salt or solvate thereof, to human patients. Specifically, dosing, dosing schedules or dosing regimens are provided herein. Further, pharmaceutical formulations are provided. Methods of treating proliferative diseases or FLT-3 mediated diseases in humans are also provided.
Inventor(s):	Joyce K. James, Traci L. Savall, Shawn R. Eichelberger
Assignee:	Ambit Bioscience Corp
Application Number:	US12/267,321
Patent Claims:	1. A method of treating a proliferative disease in a mammal, which comprises administering to the mammal having or suspected to have the proliferative disease, a therapeutically effective amount of the compound of Formula I: or a pharmaceutically acceptable salt or solvate thereof, wherein the therapeutically effective amount is at least 12 mg per day; and wherein the proliferative disease is selected from the group consisting of a leukemia, myeloma, myeloproliferative disease, myelodysplastic syndrome, idiopathic hypereosinophilic syndrome (HES), bladder cancer, breast cancer, cervical cancer, CNS cancer, colon cancer, esophageal cancer, head and neck cancer, liver cancer, lung cancer, nasopharyngeal cancer, neuroendocrine cancer, ovarian cancer, pancreatic cancer, prostate cancer, renal cancer, salivary gland cancer, small cell lung cancer, skin cancer, stomach cancer, testicular cancer, thyroid cancer, uterine cancer, and hematologic malignancy. 2. The method of claim 1, wherein the therapeutically effective amount is from about 40 to 450 mg per day. 3. The method of claim 1, wherein the compound is administered intermittently. 4. The method of claim 1, wherein the compound is administered continuously. 5. The method of claim 4, wherein the therapeutically effective amount is from about 27 to about 1000 mg per day. 6. A method of treating a proliferative disease in a mammal, which comprises administering to the mammal having or suspected to have the proliferative disease, a therapeutically effective amount of the compound of Formula I: or a pharmaceutically acceptable salt or solvate thereof, wherein the therapeutically effective amount is from about 0.1 to about 10 mg/kg/day; and wherein the proliferative disease is selected from the group consisting of a leukemia, myeloma, myeloproliferative disease, myelodysplastic syndrome, idiopathic hypereosinophilic syndrome (HES), bladder cancer, breast cancer, cervical cancer, CNS cancer, colon cancer, esophageal cancer, head and neck cancer, liver cancer, lung cancer, nasopharyngeal cancer, neuroendocrine cancer, ovarian cancer, pancreatic cancer, prostate cancer, renal cancer, salivary gland cancer, small cell lung cancer, skin cancer, stomach cancer, testicular cancer, thyroid cancer, uterine cancer, and hematologic malignancy. 7. A method of treating a proliferative disease in a mammal, which comprises administering to the mammal having or suspected to have the proliferative disease a therapeutically effective amount of the compound of Formula I: or a pharmaceutically acceptable salt or solvate thereof, wherein the amount administered is sufficient to provide a plasma concentration at steady state, of about 0.01 to about 10 μM of the compound; and wherein the proliferative disease is selected from the group consisting of a leukemia, myeloma, myeloproliferative disease, myelodysplastic syndrome, idiopathic hypereosinophilic syndrome (HES), bladder cancer, breast cancer, cervical cancer, CNS cancer, colon cancer, esophageal cancer, head and neck cancer, liver cancer, lung cancer, nasopharyngeal cancer, neuroendocrine cancer, ovarian cancer, pancreatic cancer, prostate cancer, renal cancer, salivary gland cancer, small cell lung cancer, skin cancer, stomach cancer, testicular cancer, thyroid cancer, uterine cancer, and hematologic malignancy. 8. A method of treating a proliferative disease in a mammal, which comprises administering to the mammal having or suspected to have the proliferative disease a therapeutically effective amount of the compound of Formula I: or a pharmaceutically acceptable salt or solvate thereof, wherein the amount administered is sufficient to provide a peak plasma concentration of about 0.01 to about 10 μM of the compound and wherein the proliferative disease is selected from the group consisting of a leukemia, myeloma, myeloproliferative disease, myelodysplastic syndrome, idiopathic hypereosinophilic syndrome (HES), bladder cancer, breast cancer, cervical cancer, CNS cancer, colon cancer, esophageal cancer, head and neck cancer, liver cancer, lung cancer, nasopharyngeal cancer, neuroendocrine cancer, ovarian cancer, pancreatic cancer, prostate cancer, renal cancer, salivary gland cancer, small cell lung cancer, skin cancer, stomach cancer, testicular cancer, thyroid cancer, uterine cancer, and hematologic malignancy. 9. The method of claim 1, wherein the compound is a dihydrochloride salt. 10. The method of claim 1, wherein the proliferative disease is a leukemia. 11. The method of claim 10, wherein the leukemia is an acute leukemia. 12. The method of claim 11, wherein the leukemia is acute myeloblastic leukemia. 13. The method of claim 11, wherein the leukemia is promyelocytic leukemia. 14. The method of claim 11, wherein the leukemia is acute lymphoblastic leukemia. 15. The method of claim 1, wherein the proliferative disease is acute myelogenous leukemia (AML), chronic myelogenous leukemias (CML), myelodysplastic leukemia, chronic eosinophilic leukemia (CEL), chronic myelomonocytic leukemia (CMML), mast cell leukemia, or systemic mastocytosis. 16. The method of claim 10, wherein the leukemia is relapsed or refractory. 17. The method of claim 10, wherein the leukemia is a drug-resistant leukemia. 18. The method of claim 17, wherein the drug-resistant leukemia is resistant to a FLT3 kinase inhibitor. 19. The method of claim 18, wherein the drug-resistant leukemia is resistant to PKC 412, MLN 578, CEP-701, CT 53518, CT-53608, CT-52923, D-64406, D-65476, AGL-2033, AG1295, AG1296, KN-1022, PKC-412, SU5416, SU5614, SU11248, L-00021649, or CHIR-258. 20. The method of claim 17, wherein the mammal with the drug-resistant leukemia has a constitutively activating FLT3 mutant. 21. The method of claim 1, further comprising administering to the subject a therapeutically effective amount of a second therapeutic agent. 22. The method of claim 21, wherein the second therapeutic agent is an anticancer agent. 23. The method of claim 22, wherein the anticancer agent is selected from the group consisting of adriamycin, busulfan, cytarabine, cyclophosphamide, dexamethasone, fludarabine, fluorouracil, hydroxyurea, interferons, oblimersen, platinum derivatives, taxol, topotecan, and vincristine. 24. The method of claim 22, wherein the anticancer agent is a FLT3 kinase inhibitor selected from the group consisting of PKC 412, MLN 578, CEP-701, CT 53518, CT-53608, CT-52923, D-64406, D-65476, AGL-2033, AG1295, AG1296, KN-1022, PKC-412, SU5416, SU5614, SU11248, L-00021649, and CHIR-258. 25. The method of claim 1, further comprising a diagnostic step for determining the presence of a constitutively activating FLT3 mutant. 26. The method of claim 1, wherein the proliferative disease is a bladder cancer, breast cancer, cervical cancer, CNS cancer, colon cancer, esophageal cancer, head and neck cancer, liver cancer, lung cancer, nasopharyngeal cancer, neuroendocrine cancer, ovarian cancer, pancreatic cancer, prostate cancer, renal cancer, salivary gland cancer, small cell lung cancer, skin cancer, stomach cancer, testicular cancer, thyroid cancer, uterine cancer, or hematologic malignancy. 27. The method of claim 1, wherein the administration is oral. 28. The method of claim 1, wherein the administration is parenteral. 29. The method of claim 1, wherein the administration is intravenous. 30. The method of claim 1, wherein the dose is 12, about 18, about 27, about 40, about 60, about 90, about 135, about 200, or about 450 mg per day. 31. The method of claim 1, wherein the compound, or a pharmaceutically acceptable salt, or solvate thereof, is administered once per day for one week, two weeks, or three weeks. 32. The method of claim 31, wherein the compound, or a pharmaceutically acceptable salt, or solvate thereof, is administered once per day for fourteen days. 33. The method of claim 31, wherein the administration is followed by a rest period, during which the compound of Formula I is not administered. 34. The method of claim 33, wherein the rest period is one, two, three, four, five, six, or seven days; two, three, or four weeks. 35. The method of claim 1, wherein the mammal has not been treated with anticancer therapy for the proliferative disease prior to the administration of the compound of Formula I, or a pharmaceutically acceptable salt, solvate, or hydrate thereof. 36. The method of claim 1, wherein the mammal has been treated with anticancer therapy for the proliferative disease prior to the administration of the compound of Formula I, or a pharmaceutically acceptable salt, solvate, or hydrate thereof. 37. A pharmaceutical composition comprising a compound of Formula I: or a pharmaceutically acceptable salt or solvate thereof, and one or more pharmaceutically acceptable carriers selected from the group consisting of hydroxypropyl-β-cyclodextrin, mannitol, sodium starch glycolate, citric acid, PEG400, PEG6000, polyvinylpyrrolidone, lauroyl polyoxylglycerides, a block copolymer of ethylene oxide and propylene oxide, silicone dioxide, and water. 38. The pharmaceutical composition of claim 37, wherein the pharmaceutically acceptable carrier is lauroyl polyoxylglycerides. 39. The pharmaceutical composition of claim 37, wherein the pharmaceutically acceptable carrier is hydroxypropyl-β-cyclodextrin. 40. The pharmaceutical composition of claim 39, wherein the pharmaceutically composition is powder. 41. The pharmaceutical composition of claim 37, wherein the composition is formulated as a capsule. 42. The pharmaceutical composition of claim 37, wherein the compound is a dihydrochloride salt. 43. The pharmaceutical composition of claim 37, wherein the composition is formulated for single dose administration. 44. The pharmaceutical composition of claim 37, wherein the composition is formulated for oral administration. 45. The pharmaceutical composition of claim 40, wherein the powder is spray dried powder.