Crystalline and salt forms of an organic compound and pharmaceutical compositions thereof
Inventors
Sizemore, Jacob • Zhang, Shijie
Assignees
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Abstract
Provided herein are various salts, including tris(hydroxymethyl)aminomethane salts and sodium salts, as well as various crystalline forms of the compound represented by the structural formula: Also provided are pharmaceutical compositions comprising these salts and crystalline forms, methods for their manufacture, and uses thereof for treating conditions, including but not limited to conditions that would benefit from inhibition of dihydroorotate dehydrogenase (DHODH).
Core Innovation
The invention relates to tris(hydroxymethyl)aminomethane salt forms of Compound 1, including Tris salt Form C, and to pharmaceutical compositions and formulations containing such Tris salts. The disclosure includes solid-state characterization and definition of particular crystalline forms, including identification using X-ray powder diffraction together with thermal characterization such as XRPD and DSC/TGA-type characterization described in the provided content.
The disclosed Tris salt forms are presented in the context of inhibiting dihydroorotate dehydrogenase (DHODH) and for therapeutic use in treating cancer. The described therapeutic uses include treatment of solid tumor cancers and hematological cancers, including myeloma, lymphoma, and leukemia.
The disclosure further identifies additional non-cancer conditions associated with the therapeutic area described in the provided content, including viral-mediated disease, transplant rejection, rheumatoid arthritis, psoriasis, autoimmune disease, and inflammatory disorder. Overall, the core of the invention is the provision of Tris salt forms of Compound 1, particularly defined crystalline forms, together with pharmaceutical compositions and therapeutic regimens for DHODH inhibition-associated indications.
Claims Coverage
The independent claim centers on a tris(hydroxymethyl)aminomethane salt of Compound 1, with dependent claim coverage refining the salt by specifying crystalline forms defined by X-ray powder diffraction and further extending coverage to pharmaceutical compositions and treatment methods for cancer and cancers responsive to DHODH inhibition. The inventive features indicated by the claims include crystalline form definitions and administration-based treatment with effective amounts, plus formulation with pharmaceutically acceptable excipients.
Tris(hydroxymethyl)aminomethane salt of Compound 1
A tris(hydroxymethyl)aminomethane salt of a compound represented by the formula of Compound 1.
Crystalline Form C defined by XRPD peak positions
A tris(hydroxymethyl)aminomethane salt having a crystalline Form C characterized by X-ray powder diffraction peaks at specified 2θ angles with a ±0.2° tolerance.
Crystalline Form B defined by XRPD peak positions
A tris(hydroxymethyl)aminomethane salt having a crystalline Form B characterized by X-ray powder diffraction peaks at 2θ values of 6.0°, 7.0°, and 7.2° with a ±0.2° tolerance.
Pharmaceutical composition including the Tris salt with pharmaceutically acceptable excipients
A pharmaceutical composition including the tris(hydroxymethyl)aminomethane salt together with one or more pharmaceutically acceptable excipients.
Method for treating cancer by administering an effective amount of the Tris salt
A method for treating cancer in a subject by administering an effective amount of the tris(hydroxymethyl)aminomethane salt.
Method for treating DHODH-inhibition-responsive cancer
A method for treating cancer that responds to inhibition of dihydroorotate dehydrogenase by administering an effective amount of the tris(hydroxymethyl)aminomethane salt.
Claim coverage centers on Tris(hydroxymethyl)aminomethane salts of Compound 1, with specific crystalline forms defined by XRPD peak positions, and extends to pharmaceutical compositions containing pharmaceutically acceptable excipients and administration-based methods for treating cancer, including cancers responsive to inhibition of dihydroorotate dehydrogenase.
Stated Advantages
Tris salt has superior properties versus free acid and other salts.
Tris crystalline Form C is superior to other Tris forms.
Improved physical stability linked to improved XRPD crystallinity and thermal behavior (TGA/DSC).
Reduced hygroscopicity, including lower hygroscopicity versus Form A.
Improved slurry competition stability.
Pharmacokinetic advantages versus free acid, including higher Cmax and lower Tmax.
Enables treatment of cancer by DHODH inhibition using the tris(hydroxymethyl)aminomethane salt of Compound 1.
Documented Applications
Treatment of cancer in a subject by administering an effective amount of the claimed tris(hydroxymethyl)aminomethane salt.
Treatment of cancer that responds to inhibition of dihydroorotate dehydrogenase by administering an effective amount of the claimed tris(hydroxymethyl)aminomethane salt.
Therapeutic use in solid tumor cancers.
Therapeutic use in hematological cancers including myeloma, lymphoma, and leukemia.
Therapeutic use for viral-mediated disease, transplant rejection, rheumatoid arthritis, psoriasis, autoimmune disease, and inflammatory disorder.
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