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. 2015;11(15):2137-48.
doi: 10.2217/fon.15.120.

Development of PROSTVAC immunotherapy in prostate cancer

Parminder Singh  1 , Sumanta K Pal  2 , Anitha Alex  3 , Neeraj Agarwal  3
Affiliations

Development of PROSTVAC immunotherapy in prostate cancer

Parminder Singh et al. Future Oncol. 2015.

Abstract

PROSTVAC immunotherapy is a heterologous prime-boost regimen of two different recombinant pox-virus vectors; vaccinia as the primary immunotherapy, followed by boosters employing fowlpox, to provoke immune responses against prostate-specific antigen. Both vectors contain transgenes for prostate-specific antigen and a triad of T-cell costimulatory molecules (TRICOM). In a placebo-controlled Phase II trial of men with minimally symptomatic, chemotherapy-naive metastatic castration-resistant prostate cancer, PROSTVAC was well tolerated and associated with a 44% reduction in death. With a novel mechanism of action, and excellent tolerability, PROSTVAC has the potential to dramatically alter the treatment landscape of prostate cancer, not only as a monotherapy, but also in combination with other novel agents, such as immune check point inhibitors and novel androgen receptor blockers. A Phase III trial recently completed accrual.

Keywords: PROSTVAC; pox virus immunotherapy; prostate cancer.

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Figures

Figure 1
Figure 1. PROSTVAC mechanism of action
PSA: Prostate-specific antigen; TAA: Tumor-associated antigen; TRICOM: Triad of T-cell costimulatory molecules. Figure was provided by Bavarian Nordic, Inc., Mountain View, CA, USA.
See this image and copyright information in PMC

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