The invention relates to a combination which comprises (a) at least one compound decreasing the c-Src activity and (b) N-{5-[4-(4-methyl-piperazino-methyl)-benzoylamido]-2-methylphenyl}-4-(3-pyridyl)-2-pyrimidine-amine or the monomethanesulfonate salt thereof; to pharmaceutical compositions comprising said combinations; and to a method of treating a warm-blooded animal having leukaemia, especially chronic myelogenous leukaemia, comprising administering to the animal at least one compound inhibiting the activity of a member of the Src kinase family, the Btk kinase family, the Tec kinase family or a Raf kinase inhibitor, in particular inhibiting the c-Src protein tyrosine kinase activity or inhibiting simultaneously the c-Src protein tyrosine kinase activity and the Bcr-Abl tyrosine kinase activity, alone or in combination with a Bcr-Abl inhibitor, in particular N-{5-[4-(4-methyl-piperazino-methyl)-benzoylamido]-2-methylphenyl}-4-(3-pyridyl)-2-pyrimidine-amine.