CRYSTALLINE FORMS OF N- (5- (5- ( (1R, 2S) -2-FLUOROCYCLOPROPYL) -1, 2, 4-OXADIAZOL-3-YL) -2-METHYLPHENYL) IMIDAZO [1, 2-A] PYRIDINE-3-CARBOXAMIDE

Provided are crystalline forms of N-(5{5-((1R,2S)-2-fluorocyclopropyl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide fumaric acid, in particular Form A and a N-(5{5-((1R,2S)-2-fluorocyclo-propyl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide fumaric acid co-crystal. Provided are also the processes for preparation of such crystalline forms. Furthermore, Provided is a pharmaceutical composition comprising said N-(5{5-((1R,2S)-2-fluorocyclopropyl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide fumaric acid Form A, or said N-(5-(5-((1R,2S)-2-fluorocyclopropyl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide fumaric acid co-crystal, and at least one pharmaceutically acceptable excipient. The pharmaceutical composition can be used as a medicament, in particular for the treatment and/or prophylaxis of a mast-cell associated disease, a respiratory disease, an inflammatory disorder, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), an autoimmune disorder, a metabolic disease, a fibrosis disease.