IP Library Patent Application 18034296
Patent Application
App. No. 18/034,296

HDAC INHIBITOR SOLID STATE FORMS

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Patent No.
US None
App. No.
18/034,296
Abstract

The present disclosure relates to the crystalline mesylate Form 1 salt of N-hydroxy 2-{6-[(6-fluoro-quinolin-2-ylmethyl)-amino]-3-aza-bicyclo[3.1.0]hex-3-yl}pyrimidine-5-carboxamide and methods of making the same. The crystalline mesylate Form 1 salt of N-hydroxy 2-{(6-[(6-fluoro-quinolin-2-ylmethyl)-amino]-3-aza-bicyclo[3.1.0]hex-3-yl}pyrimidine-5-carboxamide is useful in preparation of pharmaceutical compositions and dosage forms for the treatment of cancer, immune disorders and inflammation.

Claims (22)

1 - 20 . (canceled)

21 . A pharmaceutical composition comprising Crystalline mesylate Form 1 salt of N-hydroxy 2-{6-[(6-fluoro-quinolin-2-ylmethyl)-amino]-3 -aza-bicyclo[3.1.0]hex-3-yl}pyrimidine-5-carb oxamide and one or more pharmaceutically acceptable excipients or carriers.

22 . The pharmaceutical composition of claim 21 , wherein the crystalline mesylate is characterized by an X-ray diffraction pattern reflection at a 2 theta value of 3.7°±0.3.

23 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is further characterized by an X-ray diffraction pattern reflection at a 2 theta value of 14.9°±0.3.

24 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is further characterized by an X-ray diffraction pattern reflection at a 2 theta value of 7.5°±0.3. (NEW) The pharmaceutical composition of claim 23 , wherein the crystalline mesylate is further characterized by an X-ray diffraction pattern reflection at a 2 theta value of 7.5°±0.3.

26 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is further characterized by at least one X-ray diffraction pattern reflection selected from a 2 theta value of 7.5°±0.3, 14.9°±0.3, 17.3°±0.3, 19.7°±0.3, 22.5°±0.3, 22.9°±0.3, or

27 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is further characterized by at least two X-ray diffraction pattern reflections selected from a 2 theta value of 7.5°±0.3, 14.9°±0.3, 17.3°±0.3, 19.7°±0.3, 22.5°±0.3, 22.9°±0.3, or

28 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is further characterized by at least three X-ray diffraction pattern reflections selected from a 2 theta value of 7.5°±0.3, 14.9°±0.3, 17.3 °±0.3, 19.7°±0.3, 22.5°±0.3, 22.9°±0.3, or

29 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is further characterized by at least four X-ray diffraction pattern reflections selected from a 2 theta value of 7.5°±0.3, 14.9°±0.3, 17.3°±0.3, 19.7°±0.3, 22.5°±0.3, 22.9°±0.3, or

30 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is further characterized by at least five X-ray diffraction pattern reflections selected from a 2 theta value of 7.5°±0.3, 14.9°±0.3, 17.3°±0.3, 19.7°±0.3, 22.5°±0.3, 22.9°±0.3, or

31 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is characterized by the X-ray powder diffraction pattern as shown in FIG. 1 .

32 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is characterized by thermogravimetric analysis (TGA), wherein the TGA thermogram exhibits less than 0.5%±0.5 weight loss up to 225° C.±10.0.

33 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is characterized by the thermogravimetric analysis (TGA) pattern as shown in FIG. 3 .

34 . The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is characterized by characterized by differential scanning calorimetry (DSC), wherein the DSC thermogram exhibits a single exothermic event with an onset temperature at about 222.1° C±5.0 (433 J/g) or an exothermic peak at 225.8° C.±5.0. (NEW) The pharmaceutical composition of claim 22 , wherein the crystalline mesylate is characterized by the differential scanning calorimetry (DSC) pattern as shown in FIG. 3 .

36 . The pharmaceutical composition of claim 22 , wherein an amount of another crystalline form or an amorphous form in the crystalline mesylate is 5% (w/w) or less.

37 . The pharmaceutical composition of claim 22 , wherein the amount of impurities in the crystalline mesylate is 3% or less.

38 . The pharmaceutical composition of claim 22 , further comprising one or more additional active pharmaceutical ingredient (API).

39 . The pharmaceutical composition of claim 38 , wherein the additional API is valganciclovir.

40 . A method of treating cancer in an individual, the method comprising administering an effective amount of:

(a) valganciclovir; and

(b) Crystalline mesylate Form 1 salt of N-hydroxy 2-{6-[(6-fluoro-quinolin-2-ylmethyl)-amino]-3-aza-bicydo[3.1.0]hex-3-yl}pyrimidine-5-carboxamide characterized by an X-ray diffraction pattern reflection at a 2 theta value of 3.7°±0.3

thereby treating the cancer in the individual.

Assignments (4)
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jan 23, 2025
From: VIRACTA SUBSIDIARY, INC.
To: OXFORD FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 070000/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2023
From: VIRACTA THERAPEUTICS, INC.
To: VIRACTA SUBSIDIARY, INC.
Reel/Frame 063660/0231 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2023
From: NADJSOMBATI, BILJANA
To: VIRACTA THERAPEUTICS, INC.
Reel/Frame 063660/0237 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2023
From: DENG, XIAOHU; MAI, WANPING; MCRAE, ROBERT C.
To: VIRACTA SUBSIDIARY, INC.
Reel/Frame 063660/0241 →