The purpose of this research is to determine the safety of serial intradermal vaccinations of a DNA vaccine encoding human PAP, with GM-CSF as a vaccine adjuvant, in subjects with stage D0 prostate cancer. In addition, to determine whether PAP-specific IFNУ-secreting CD8+ T cells can be augmented in subjects with stage D0 prostate cancer by means of immunization with a plasmid DNA vaccine encoding PAP.
This is a phase I design where patients will receive the vaccine pTVG-HP with rhGM-CSF administered i.d. biweekly for 6 total doses. There will be three escalating dose cohorts. The dosing cohort considered to be the maximum tolerated dose level will be expanded up to a total of 16 patients.