The present disclosure relates to crystalline form of (S)—N—((S)-1-cyclohexyl-2-{(S)-2-[4-(4-fluoro-benzoyl)-thiazol-2-yl]-pyrrolidin-1-yl}-2-oxo-ethyl)-2-methylamino-propionamide, salts and hydrates thereof. This disclosure also relates to solid oral formulation of (S)—N—((S)-1-cyclohexyl-2-{(S)-2-[4-(4-fluoro-benzoyl)-thiazol-2-yl]-pyrrolidin-1-yl}-2-oxo-ethyl)-2-methylamino-propionamide, pharmaceutically acceptable salts, solvates (including hydrates) thereof, as well as methods of treatment using the same.本公開內容涉及(S)-N-((S)-1-環己基-2-{(S)-2-[4-(4-氟-苯甲酰基)-噻唑-2-基]-吡咯烷-1-基}-2-氧代-乙基)-2-甲基氨基-丙酰胺、其鹽和水合物的晶形。該公開內容還涉及(S)-N-((S)-1-環己基-2-{(S)-2-[4-(4-氟-苯甲酰基)-噻唑-2-基]-吡咯烷-1-基}-2-氧代-乙基)-2-甲基氨基-丙酰胺、其可藥用鹽、溶劑化物(包括水合物)的固體口服製劑,以及使用它們的治療方法。