 7. Patients who received any other hormonal therapy, including megestrol acetate, finasteride, ketoconazole, abiraterone, enzalutamide, diethylstilbestrol or any systemic corticosteroids, must have discontinued such agent for at least 2 weeks prior to enrollment. Progressive disease must be documented after discontinuation of such therapy. Low dose maintenance steroids prednisone 10 mgd or hydrocortisone 30 mgd equivalents are permitted. 