Claims for Patent: 8,557,852

Summary for Patent: 8,557,852

Title:	Methods of using crystalline forms of a salt of a factor Xa inhibitor
Abstract:	The present invention provides methods for preventing or treating a condition characterized by undesired thrombosis in a mammal using a crystalline polymorph form of a maleate salt of a compound of Formula I that has activity against mammalian factor Xa. ##STR00001##
Inventor(s):	Grant; Craig (Burwell, GB), Kanter; James P. (San Ramon, CA), Langlands; Graeme (Soham, GB)
Assignee:	Millennium Pharmaceuticals, Inc. (Cambridge, MA)
Application Number:	12/550,291
Patent Claims:	1. A method for preventing or treating venous thrombosis in a mammal in need thereof comprising administering to said mammal a therapeutically effective amount of a salt represented by the Formula II: ##STR00014## wherein the salt is in a crystalline polymorph form. 2. The method of claim 1 wherein the salt is administered to the mammal in the form of a pharmaceutical composition comprising the salt and a pharmaceutically acceptable carrier. 3. The method of claim 1, wherein the salt has a powder X-ray diffraction pattern having at least four approximate characteristic peak locations selected from 4.9, 9.7, 13.8, 14.1, 15.2, 17.6, 18.5, 20.8, 21.6, 22.7, 24.1, 26.3, and 26.8 degrees 20. 4. The method of claim 1, wherein the salt has a powder X-ray diffraction pattern having at least eight approximate characteristic peak locations selected from 4.9, 9.7, 11.8, 13.8, 14.1, 15.2, 17.6, 18.5, 19.9, 20.8, 21.6, 22.7, 24.1, 25.0, 26.3, and 26.8 degrees 2.theta.. 5. The method of claim 1, wherein the salt has a powder X-ray diffraction pattern approximate to the powder X-ray diffraction pattern shown in FIG. 1A. 6. The method of claim 1, wherein the salt has a differential scanning calorimetry approximate to the differential scanning calorimetry pattern shown in FIG. 2A. 7. A method for preventing or treating deep venous thrombosis in a mammal in need thereof comprising administering to said mammal a therapeutically effective amount of a salt represented by the Formula II: ##STR00015## wherein the salt is in a crystalline polymorph form. 8. The method of claim 7 wherein the salt is administered to the mammal in the form of a pharmaceutical composition comprising the salt and a pharmaceutically acceptable carrier. 9. The method of claim 7, wherein the salt has a powder X-ray diffraction pattern having at least four approximate characteristic peak locations selected from 4.9, 9.7, 13.8, 14.1, 15.2, 17.6, 18.5, 20.8, 21.6, 22.7, 24.1, 26.3, and 26.8 degrees 20. 10. The method of claim 7, wherein the salt has a powder X-ray diffraction pattern having at least eight approximate characteristic peak locations selected from 4.9, 9.7, 11.8, 13.8, 14.1, 15.2, 17.6, 18.5, 19.9, 20.8, 21.6, 22.7, 24.1, 25.0, 26.3, and 26.8 degrees 2.theta.. 11. The method of claim 7, wherein the salt has a powder X-ray diffraction pattern approximate to the powder X-ray diffraction pattern shown in FIG. 1A. 12. The method of claim 7, wherein the salt has a differential scanning calorimetry approximate to the differential scanning calorimetry pattern shown in FIG. 2A.