NCIt definition : A synthetic fowlpox viral vaccine containing the tumor-associated antigens prostate
specific antigen (PSA), prostate specific membrane antigen (PSMA), and a TRIad of
COstimulatory Molecules (B7-1, ICAM-1 and LFA-3; TRICOM). Vaccination with this viral
vaccine may enhance antigen presentation and activate cytotoxic T-cells against PSA-
or PSMA-expressing tumor cells.;