A peptide-based cancer vaccine, consisting of amino acid residues 29 through 37 of T cell receptor gamma alternate reading frame protein (TARP) with a leucine-to-valine substitution at position 9, with potential immunostimulatory and antineoplastic activities. Upon administration, TARP 29-37-9V peptide vaccine may induce a cytotoxic T-lymphocyte (CTL) response against TARP-expressing tumor cells, which may result in decreased tumor cell proliferation. The leucine-to-valine substitution at position 9 of this peptide improves its immunogenicity. The nuclear protein TARP is commonly expressed on prostate and breast cancer cells and is highly immunogenic. Check for active clinical trials using this agent. (NCI Thesaurus)