Description: This is a multivalent antineoplastic vaccine comprised of the bcr-abl oncogene breakpoint fusion peptide that elicits a bcr-abl specific T-cell immune response. (NCIT_C2205) The multivalent tumor-specific breakpoint peptide vaccine in patients with chronic myelogenous leukemia. (NCT00004052) The bcr-abl peptides can be used in combination with IL-12 and GM-CSF plasmids to help treat patients with CML. (NCT00455221)