The present invention relates to solid pharmaceutical compositions comprising the phosphatidylinositol 3-kinase inhibitor compound 4-(trifluoromethyl)-5-(2,6-dimorpholinopyrimidin-4-yl)pyridin-2-amine or a pharmaceutically acceptable salt thereof, sodium stearyl fumarate, and optionally at least one additional pharmaceutically acceptable carrier. The present invention also relates to the processes for their preparation and to their use as medicaments for the treatment of cancer.本發明係關於固體醫藥組合物，其包含磷脂醯肌醇3-激酶抑制劑化合物4-(三氟甲基)-5-(2,6-二嗎啉基嘧啶-4-基)吡啶-2-胺或其醫藥上可接受之鹽、硬脂醯富馬酸鈉及視情況至少一種醫藥上可接受之其他載劑。本發明亦係關於其製備方法，且係關於其作為治療癌症之藥劑之用途。
