(UroToday.com) There has been a proliferation in treatment options for patients with metastatic castration-resistant prostate cancer (mCRPC) in the last 10 years. While the most commonly utilized approaches in prostate cancer are cytotoxic chemotherapy or target the androgen-axis (including abiraterone acetate and enzalutamide), there is an ongoing interest to explore and develop a novel therapeutic approach that may have more durable responses.