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Terminated Phase 2 Interventional Results available

A Study of ZEN003694 and Talazoparib in Patients With Triple Negative Breast Cancer

ClinicalTrials.gov ID: NCT03901469

Public ClinicalTrials.gov record NCT03901469. 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 4, 2026, 2:21 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 2b Study of ZEN003694 in Combination With Talazoparib in Patients With Triple-Negative Breast Cancer

Brief summary

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

This is a two-part open label, non-randomized, Phase 2, study of ZEN003694 in combination with Talazoparib in patients with TNBC without germline mutations of BRCA1 or BRCA2. Part 1 is a dose escalation and Part 2 is a Simon 2-Stage design. There are 3 expansion cohorts: Expansion Cohort A (combination treatment in post-TROP2-ADC patients), Expansion Cohort B (ZEN003694 monotherapy), and Expansion Cohort C (combination treatment in TROP2-ADC-naive patients).

Study identification

NCT ID
NCT03901469
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Lead sponsor
Zenith Epigenetics
Industry
Enrollment
115 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
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
Jun 25, 2019
Primary completion
Mar 6, 2024
Completion
Mar 6, 2024
Last update posted
Oct 6, 2025

2019 – 2024

United States locations

U.S. sites
8
U.S. states
8
U.S. cities
8
Facility City State ZIP Site status
Banner MD Anderson Cancer Center Gilbert Arizona 85234
Emory University Winship Cancer Institute Atlanta Georgia 30322
University of Kansas Cancer Center Westwood Kansas 66203
Dana Farber Cancer Institute Boston Massachusetts 02115
Memorial Sloan Kettering Cancer Center New York New York 10065
University of Pennsylvania Philadelphia Pennsylvania 19104
Tennessee Oncology (Sarah Cannon) Nashville Tennessee 37203
MD Anderson Houston Texas 77030

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 11 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03901469, 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 Oct 6, 2025 · Synced Sep 4, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03901469 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →