Combining EPI-7386 With Enzalutamide and Androgen Deprivation Therapy for Metastatic Hormone-Sensitive Prostate Cancer

EPI-7386 is an investigational drug that works by blocking the androgen receptor at a different site compared to the approved androgen receptor blockers. This may increase the effectiveness of this drug and increase the effectiveness of approved androgen receptor blockers when taken together. EPI-7386 is a new drug; therefore, its effectiveness and safety in prostate cancer patients must be studied before it is approved by the Food and Drug Administration. EPI-7386 is experimental because it is not currently approved by the Food and Drug Administration (FDA). Enzalutamide is approved by the FDA for patients whose prostate cancers has spread after receiving treatment. The hypothesis is that adding EPI-7386 to standard hormone therapy will be more effective in treating cancer compared to usual treatment, with the long term goal of discovering more about hormone therapy as a treatment for cancer.