patent summary: "6-oxo-1,6-dihydro-pyridazine derivative for use in the treatment of hepatocellular carcinoma (hcc)". The present invention relates to 3- (1- {3- [5- (1-methyl-piperidin-4-ylmethoxy) -pyrimidin-2-yl] -benzyl} -6-oxo-1,6-dihydroxyamide). hydro-pyridazin-3-yl) benzonitrile or a pharmaceutically acceptable salt and / or solvate thereof for use for the treatment of hepatocellular carcinoma (hcc).resumo patente de invenção: "derivado de 6-oxo-1,6-di-hidro-piridazina para uso no tratamento de carcinoma hepatocelular (hcc)". a presente invenção refere-se a 3-(1-{3-[5-(1-metil-piperidin-4-ilmetóxi)-pirimidin-2-il]-benzil}-6-oxo-1,6-di-hidro-piridazin-3-il)-benzonitrila ou um sal e/ou solvato farmaceuticamente aceitável da mesma para uso para o tratamento de carcinoma hepatocelular (hcc).