A method of treating haematological cancer with a therapy comprising a DHODH inhibitor. Also provided is a combination therapy comprising a pan-HER inhibitor and a DHODH inhibitor for treating a haematological cancer.本發明提供一種利用包含DHODH抑制劑之療法治療血液癌症之方法。亦提供一種包含泛-HER抑制劑及DHODH抑制劑之組合療法,其用於治療血液癌症。