Crystalline forms of a bruton's tyrosine kinase inhibitor
Described herein is the Bruton's tyrosine kinase (Btk) inhibitor 1-((R)-3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)prop-2-en-1-one, including crystalline forms, solvates and pharmaceutically acceptable salts thereof. Also disclosed are pharmaceutical compositions that include the Btk inhibitor, as well as methods of using the Btk inhibitor, alone or in combination with other therapeutic agents, for the treatment of autoimmune diseases or conditions, heteroimmune diseases or conditions, cancer, including lymphoma, and inflammatory diseases or conditions.
1. A crystalline Form A of 1-((R)-3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)prop-2-en-1-one that has an X-ray powder diffraction (XRPD) pattern comprising 2-Theta peaks at 5.7±0.1°, 18.9±0.1°, and 21.3±0.1°.
2. The crystalline form of claim 1 , wherein the X-ray powder diffraction (XRPD) pattern further comprises a 2-Theta peak at 16.1±0.1°.
3. The crystalline form of claim 1 , wherein the X-ray powder diffraction (XRPD) pattern further comprises a 2-Theta peak at 13.6±0.1°.
4. The crystalline form of claim 1 , wherein the X-ray powder diffraction (XRPD) pattern further comprises a 2-Theta peak at 21.6±0.1°.
5. The crystalline form of claim 1 , wherein the X-ray powder diffraction (XRPD) pattern further comprises 2-Theta peaks at 13.6±0.1°, 16.1±0.1°, and 21.6±0.1°.
6. The crystalline form of claim 1 , wherein the X-ray powder diffraction (XRPD) pattern further comprises 2-Theta peaks at 13.6±0.1° and 16.1±0.1°.
7. The crystalline form of claim 1 , wherein the X-ray powder diffraction (XRPD) pattern further comprises 2-Theta peaks at 13.6±0.1° and 21.6±0.1°.
8. The crystalline form of claim 1 , wherein the X-ray powder diffraction (XRPD) pattern further comprises 2-Theta peaks at 16.1±0.1° and 21.6±0.1°.
9. The crystalline form of claim 1 , wherein the crystalline form has Infrared (IR) spectrum weak peaks at about 1584 cm −1 , about 1240 cm −1 , about 1147 cm −1 , about 1134 cm −1 , about 1099 cm −1 , and about 1067 cm −1 .
10. The crystalline form of claim 1 , wherein the crystalline form has a melting temperature of about 155-156° C.
11. The crystalline form of claim 1 , wherein the crystalline form has a DSC thermogram with an endotherm having an onset at about 154° C. and a peak at about 157° C. and an exotherm at about 159° C.
12. The crystalline form of claim 1 , wherein the crystalline form is non-hygroscopic.
13. The crystalline form of claim 1 , wherein the crystalline form has an observed aqueous solubility of about 0.013 mg/mL at about pH 8.