A Study of EPI-7386 in Combination With Abiraterone Acetate Plus Prednisone, or Apalutamide in Metastatic Castration-resistant Prostate Cancer (mCRPC)
Prostatic Neoplasms

About this trial
This is an interventional treatment trial for Prostatic Neoplasms
Eligibility Criteria
Inclusion Criteria:
- Histologically confirmed prostate adenocarcinoma
- Must be able to continue Gonadotropin-releasing hormone agonist (GnRHa) during the study if not surgically castrate
- Eastern Cooperative Oncology Group (ECOG) performance status grade of 0, 1, or 2
- Must be able to swallow oral medicines
- Contraceptive use by men (and female partners of men enrolled in the study who are of childbearing potential or are pregnant) (birth control) use should be consistent with local regulations regarding the use of contraceptive methods for participants participating in clinical studies
- Willing and able to adhere to the prohibitions and restrictions specified in this protocol
Exclusion Criteria:
- Known central nervous system (CNS) metastases
- Non-metastatic castration-resistant prostate cancer (CRPC) (biochemical or locoregional disease only) is excluded from trial participation
- Evidence of predominant neuroendocrine/small cell carcinoma features in archival or baseline tumor biopsy specimen(s)
- Symptomatic or impending spinal cord compression, except if participant has received definitive treatment and demonstrates evidence of clinically stable disease
- Known disorder affecting gastrointestinal absorption
Sites / Locations
- Chesapeake Urology Research Associates
- GU Research Network
- Carolina Urologic Research Center
- Prostate Cancer Centre
Arms of the Study
Arm 1
Arm 2
Experimental
Experimental
Group A: EPI-7386 + Abiraterone Acetate Plus Prednisone (AAP)
Group B: EPI-3786 + Apalutamide
Participants with metastatic castration-resistant prostate cancer (mCRPC) will receive EPI-7386 + AAP to determine the recommended phase 2 dose (RP2D) dose of EPI-7386 in combination with AAP in dose finding portion of the study. In dose expansion portion of the study, participants will receive EPI-7386 RP2D in combination with AAP.
Participants with mCRPC will receive EPI-7386 + apalutamide to determine RP2D dose of EPI-7386 in combination with apalutamide in dose finding portion of the study. In dose expansion portion of the study, participants will receive EPI-7386 RP2D in combination with apalutamide.