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Study details
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ZEN003694 and Enzalutamide Versus Enzalutamide Monotherapy in Metastatic Castration-Resistant Prostate Cancer

Zenith Epigenetics
NCT IDNCT04986423ClinicalTrials.gov data as of Apr 2026
Phase

Phase 2

Target enrollment

200

Study length

about 4.8 years

Ages

18+

Sex

Male only

Locations

16 sites in CA, CO, FL +10

What this study is about

Researchers are testing whether ZEN003694, taken with enzalutamide, is more effective than enzalutamide alone for men whose prostate cancer has returned after treatment with abiraterone. The trial will enroll approximately 200 men who have progressed on abiraterone and are considered castration-resistant. Patients will be divided into two groups: those who did not respond well to abiraterone, or those who responded well to abiraterone.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take Enzalutamide
  • 2.Take ZEN003694

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Oral

How treatment is administered

Treatment Assignment
Randomized (Open Label)

You are randomly assigned, but you will know your treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

enzalutamide

Drug routes

oral (Oral Tablet)

Endpoints

Primary: Cohort A: Radiographic progression-free survival (rPFS) by BICR

Secondary: Cohort A + B: Overall survival (OS), Cohort A + B: PSA50 response rate, Cohort A + B: Progression-free survival (PFS) by investigator assessment, Cohort A + B: Radiographic progression-free survival (rPFS) by investigator assessment, Cohort A: Overall survival (OS), Cohort A: PSA50 response rate, Cohort A: Progression-free survival (PFS) by investigator assessment, Cohort A: Radiographic progression-free survival (rPFS) by investigator assessment

Body systems

Oncology