Clinical Trial to Test Efficacy of Targeting Hypoxia Combined With ARSI After First-line ARSI Therapy for Castrate Resistant Prostate Cancer

Evofosfamide at a dose of 480 mg/m2 IV over 60 minutes on Days 1, 8 and 15 of every 28-day cycle. Additionally, subjects will receive standard-of-care castration (medical or surgical) plus ARSI. On days when both an ARSI and evofosfamide are administered, the ARSI should be administered at least 2 hours before or at least 2 hours after completion of the evofosfamide infusion. The preferred order of administration is evofosfamide administered first, with the ARSI administered at least 2 hours following the completion of evofosfamide infusion.