Abstract: A pharmaceutical combination comprising (a) a RTK inhibitor selected from the group consisting of compounds of Formula I or a tautomer thereof, compounds of Formula II or a tautomer thereof, compounds of Formula III or a tautomer thereof, a pharmaceutically acceptable salt of the compound, a pharmaceutically acceptable salt of the tautomer, or a mixture thereof; and (b) one or more anti-estrogen compounds, or a pharmaceutically acceptable salt thereof; such as tamoxifen, toremifene, fulvestrant, raloxifene or raloxifene hydrochloride; the uses of such combination in the treatment or prevention of proliferative diseases: and methods of treating a subject suffering from a proliferative disease; and methods of treating a subject suffering from a proliferative disease comprising administering a therapeutically effective amount of such combination.