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Terminated Phase 1 Interventional

Tazemetostat in Combination With Doxorubicin as Frontline Therapy for Advanced Epithelioid Sarcoma

ClinicalTrials.gov ID: NCT04204941

Public ClinicalTrials.gov record NCT04204941. 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 Nov 4, 2026, 6:21 PM EST

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Official title

A Phase 1b/3 Global, Randomized, Double-blind, Placebo-Controlled Trial of Tazemetostat in Combination With Doxorubicin as Frontline Therapy for Advanced Epithelioid Sarcoma

Brief summary

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

The participants of this study will have advanced epithelioid sarcoma. Sarcoma is a cancer of the connective tissues, such as nerves, muscles and bones. Epithelioid sarcoma is an ultra-rare sarcoma of the soft-tissue. Part 1 of this trial will evaluate the safety and the level of the study drug that the study drug combinations can be tolerated (known as tolerability). It is also designed to establish a recommended study drug dosage for the next part of the study. Part 2 will evaluate and compare for each of the study drug combinations how long participants live without their disease getting worse. The study drug is called tazemetostat. The study will test tazemetostat in combination with doxorubicin compared to placebo (dummy treatment) in combination with doxorubicin. Doxorubicin is a current front line treatment for epithelioid sarcoma

Study identification

NCT ID
NCT04204941
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 1
Lead sponsor
Epizyme, Inc.
Industry
Enrollment
25 participants

Conditions and interventions

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
Dec 19, 2019 (Actual)
Primary completion
Jun 14, 2024 (Actual)
Completion
Jun 14, 2024 (Actual)
Last update posted
Jan 7, 2026

2019 – 2024

United States locations

U.S. sites
18
U.S. states
13
U.S. cities
16
Facility City State ZIP Site status
City of Hope Comprehensive Cancer Center Duarte California 91010 —
Sarcoma Oncology Research Center Santa Monica California 90403 —
University of Colorado Hospital - Anschutz Cancer Pavilion Aurora Colorado 80045 —
Sarah Cannon Research Institute at HealthONE Denver Colorado 80218 —
Mayo Clinic-Jacksonville Jacksonville Florida 32224 —
Massachusetts General Hospital Boston Massachusetts 02214 —
Dana Farber Cancer Insititute Boston Massachusetts 02215 —
Dana Farber Cancer Institute Boston Massachusetts 02215 —
University of Michigan Medical Center Ann Arbor Michigan 48109 —
Washington University St Louis Missouri 63110 —
Columbia University Irving Medical Center New York New York 10032 —
Duke University Medical Center Durham North Carolina 27710 —
The Ohio State University Comprehensive Cancer Center Columbus Ohio 43210 —
Oregon Health and Science University Portland Oregon 97239 —
Thomas Jefferson University Hospital Philadelphia Pennsylvania 19107 —
University of Pittsburgh Medical Center - Hillman Cancer Center Pittsburgh Pennsylvania 15232 —
Sarah Cannon and HCA Research Institute Nashville Tennessee 37203 —
Fred Hutchinson Research Center 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 3 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04204941, 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 Jan 7, 2026 · Synced Nov 4, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04204941 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →