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Terminated Phase 1Phase 2 Interventional

Safety and Anti-Tumor Study of Oral EPI-506 for Patients With Metastatic Castration-Resistant Prostate Cancer

ClinicalTrials.gov ID: NCT02606123

Public ClinicalTrials.gov record NCT02606123. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 12, 2026, 6:36 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 1/2 Open-Label Study to Assess the Safety, Pharmacokinetics, and Anti-Tumor Activity of Oral EPI-506 in Patients With Metastatic Castration-Resistant Prostate Cancer

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The study will consist of 2 parts: Part I (Dose Escalation) and Part II (Dose Expansion). In Part I, patients will participate in single, multiple, and long-term dosing periods using EPI-506 to determine safety, pharmacokinetics, the maximum tolerated dose, and preliminary indications of anti-tumor activity. Part I is an open-label, adaptive 3 + 3 design, dose-escalation study. Approximately six dose levels of EPI-506 will be studied, beginning at 80 mg/day. Enrolled patients may be allowed to escalate to a subsequent dose cohort after their initial twelve weeks. Additional patients may be enrolled at any safe dose level prior to or concurrent with enrolling patients in Part II. In Part II, 3 patient populations; post-abiraterone metastatic castration-resistant prostate cancer (mCRPC) but enzalutamide-naïve, post-enzalutamide mCRPC but abiraterone-naïve, and post-abiraterone and enzalutamide mCRPC will be studied at the recommended Phase 2 dose (RP2D) determined in Part I over 12 weeks of daily dosing. Approximately 120 patients (40 in each cohort) will be enrolled.

Study identification

NCT ID
NCT02606123
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 1, Phase 2
Lead sponsor
ESSA Pharmaceuticals
Industry
Enrollment
28 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
Male
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 30, 2015
Primary completion
Nov 30, 2017
Completion
Nov 30, 2017
Last update posted
Feb 28, 2018

2015 – 2017

United States locations

U.S. sites
4
U.S. states
3
U.S. cities
4
Facility City State ZIP Site status
Scottsdale Healthcare Hospitals DBA HonorHealth Scottsdale Arizona 85258
University of Michigan Health System Ann Arbor Michigan 48109
Karmanos Cancer Institute Detroit Michigan 48201
Seattle Cancer Care Alliance Seattle Washington 98109

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02606123, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 28, 2018 · Synced Sep 12, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT02606123 live on ClinicalTrials.gov.

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