EPI-7386 Under Development for Metastatic, Hormone-Resistant Prostate Cancer.

EPI-7386 is a new androgen receptor inhibitor, selected as Essa Pharma’s lead candidate therapy for metastatic castration (hormone)-resistant prostate cancer (mCRPC). EPI-7386 works differently from current hormonal therapies by targeting a different region of the androgen receptor: instead of preventing androgens from binding the receptor, EPI-7386 binds to the N-terminal domain needed to activate the androgen receptor signaling cascade. Through this novel mechanism, EPI-7386 is able to block the androgen receptor even in cells that acquired resistance to other androgen receptor inhibitors, like Xtandi (enzalutamide). Essa expects to begin clinical trials for EPI-7386 by April 2020.

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