Prostvac
Prostvac
Prostate cancer vaccine
PROSTVAC (rilimogene galvacirepvec/rilimogene glafolivec) is a cancer immunotherapy candidate in clinical development by Bavarian Nordic for the treatment of all prostate cancer although clinical trials are focusing on more advanced cases of metastatic castration-resistant prostate cancer (mCRPC). PROSTVAC is a vaccine designed to enable the immune system to recognize and attack prostate cancer cells by triggering a specific and targeted T cell immune response to cancer cells that express the tumor-associated antigen prostate-specific antigen (PSA).
PROSTVAC utilizes recombinant poxviruses that express PSA, along with 3 immune-enhancing costimulatory molecules collectively designated as TRICOM (LFA-3, ICAM-1, and B7.1) to stimulate an immune response.[1] Treatment is initiated by subcutaneous administration of a priming dose of vaccinia encoding PSA-TRICOM, followed by 6 subsequent boosting doses of fowlpox encoding the same PSA-TRICOM cassette. Using this heterologous prime-boost dosing regimen, the immune system becomes focused on inducing PSA-specific T cell responses, designed to kill tumor cells expressing PSA.[citation needed]