PROBLEM TO BE SOLVED: To provide novel methods and materials for efficiently treating patients having an HLA-B0702 phenotype, based on peptides representing shared epitopes of tumor antigens.SOLUTION: The invention relates to a method for identifying an HLA-B0702 restricted peptide which can induce a cytotoxic response against several antigens from one single multigenic family, to several such epitopes, to a method for producing the HLA-B0702 restricted peptide which can induce cytotoxic response, to an isolated nucleic acid molecule, and to a pharmaceutical composition which is a vaccine.