Solid forms of a compound
Forms of 2-(4-chlorophenoxy)-N-[3-[5-[cis-3-(trifluoromethoxy)cyclobutyl]-1,3,4-oxadiazol-2-yl]-1-bicyclo[1.1.1]pentanyl]acetamide, designated herein as Compound I, were prepared and characterized in the solid state. Also provided are processes of manufacture and methods of using the forms of Compound I.
1 . Form C polymorph of 2-(4-chlorophenoxy)-N-[3-[5-[cis-3-(trifluoromethoxy)cyclobutyl]-1,3,4-oxadiazol-2-yl]-1-bicyclo[1.1.1]pent-1-yl]acetamide, that exhibits an X-ray powder diffraction pattern having peaks expressed in ±0.2 degrees 2-theta at 18.5, 23.3, 25.1, and 25.8, wherein the X-ray powder diffraction pattern is made using CuKα radiation.
2 . The Form C polymorph of claim 1 , wherein the diffractogram further comprises one or more peaks expressed in ±0.2 degrees 2-theta selected from 17.3, 17.9, and 20.2.
3 . The Form C polymorph of claim 1 , wherein the diffraction pattern is substantially as shown in FIG. 5 .
4 . The Form C polymorph of claim 1 , characterized by a differential scanning calorimetry (DSC) curve that shows an endotherm onset at about 132.3° C.
5 . The Form C polymorph of claim 1 , wherein the differential scanning calorimetry (DSC) curve is substantially as shown in FIG. 6 .
6 . The Form C polymorph of claim 1 , wherein the dynamic vapor sorption (DVS) isotherm is substantially as shown in FIG. 7 .
7 . The Form C polymorph of claim 1 , produced by subjecting a Form A polymorph of 2-(4-chlorophenoxy)-N-[3-[5-[cis-3-(trifluoromethoxy)cyclobutyl]-1,3,4-oxadiazol-2-yl]-1-bicyclo[1.1.1]pent-1-yl]acetamide that exhibits an X-ray powder diffraction pattern having peaks expressed in ±0.2 degrees 2-theta at 22.2, 22.6, and 22.9, wherein the X-ray powder diffraction pattern is made using CuKα radiation, to high energy milling.
8 . Form A polymorph of 2-(4-chlorophenoxy)-N-[3-[5-[cis-3-(trifluoromethoxy)cyclobutyl]-1,3,4-oxadiazol-2-yl]-1-bicyclo[1.1.1]pent-1-yl]acetamide that exhibits an X-ray powder diffraction pattern having peaks expressed in ±0.2 degrees 2-theta at 22.2, 22.6, and 22.9, wherein the X-ray powder diffraction pattern is made using CuKα radiation wherein the compound is micronized.
9 . The Form A polymorph of claim 8 , wherein the diffractogram further comprises one or more peaks expressed in ±0.2 degrees 2-theta selected from 17.8, 20.0, 20.8, and 21.0.
10 . The Form A polymorph of claim 8 , wherein the diffraction pattern is substantially as shown in FIG. 1 .
11 . The Form A polymorph of claim 8 , characterized by a differential scanning calorimetry (DSC) curve that shows an endotherm onset at about 126.5° C.
12 . The Form A polymorph of claim 8 , wherein the DSC curve is substantially as shown in FIG. 2 .
13 . The Form A polymorph of claim 8 , wherein the dynamic vapor sorption (DVS) isotherm is substantially as shown in FIG. 3 .
14 . The Form A polymorph of claim 8 , produced by diffusion of vapor of a counter solvent onto a solution of 2-(4-chlorophenoxy)-N-[3-[5-[cis-3-(trifluoromethoxy)cyclobutyl]-1,3,4-oxadiazol-2-yl]-1-bicyclo[1.1.1]pent-1-yl]acetamide at room temperature.
15 . A pharmaceutical composition comprising the polymorph of claim 1 , and one or more pharmaceutically acceptable carriers.
16 . The pharmaceutical composition of claim 15 , wherein at least 95% of the 2-(4-chlorophenoxy)-N-[3-[5-[cis-3-(trifluoromethoxy)cyclobutyl]-1,3,4-oxadiazol-2-yl]-1-bicyclo[1.1.1]pent-1-yl]acetamide is in a crystalline form.
17 . A method for treating a disease or condition mediated, at least in part, by eukaryotic initiation factor 2B, the method comprising administering to a patient in need thereof an effective amount of the Form C polymorph of claim 1 .
18 . The method of claim 17 , wherein the disease or condition is a neurodegenerative disease.
19 . The method of claim 17 , wherein the disease is Alexander's disease, Alper's disease, Alzheimer's disease, Amyotrophic lateral sclerosis, Ataxia telangiectasia, Batten disease (also known as Spielmeyer-Vogt-Sjogren-Batten disease), Bovine spongiform encephalopathy (BSE), Canavan disease, Cockayne syndrome, Corticobasal degeneration, Creutzfeldt-Jakob disease, frontotemporal dementia, vanishing white matter disease, Gerstmann-Straussler-Scheinker syndrome, Huntington's disease, HIV-associated dementia, Kennedy's disease, Krabbe's disease, kuru, Lewy body dementia, Machado-Joseph disease (Spinocerebellar ataxia type 3), Multiple sclerosis, Multiple System Atrophy, Narcolepsy, Neuroborreliosis, Parkinson's disease, Pelizaeus-Merzbacher Disease, Pick's disease, Primary lateral sclerosis, Prion diseases, Refsum's disease, Sandhoffs disease, Schilder's disease, Subacute combined degeneration of spinal cord secondary to Pernicious Anaemia, Schizophrenia, Spinocerebellar ataxia (multiple types with varying characteristics), Spinal muscular atrophy, Steele-Richardson-Olszewski disease, insulin resistance or Tabes dorsalis.
20 . The method of claim 17 , wherein the disease is Alzheimer's disease, ALS, Parkinson's disease, or dementia.
21 . The method of claim 20 , wherein the dementia is frontotemporal dementia (FTD).
22 . The method of claim 20 , wherein the disease is ALS.
23 . A method for treating a disease or condition mediated, at least in part, by eukaryotic initiation factor 2B, the method comprising administering to a patient in need thereof an effective amount of the Form A polymorph of claim 8 .