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A Study of Tazemetostat With Enzalutamide or Abiraterone/Prednisone in Participants With Advanced Prostate Cancer

Terminated · Phase 1, Phase 2 · NCT04179864

Conditions: Metastatic Prostate Cancer, Metastatic Castration-resistant Prostate Cancer

At a glance

Research payments reported, 2025
$535,018
U.S. investigators named
12
Sites paid
13
Planned or actual enrollment
102

About the trial

Sponsor
Epizyme, Inc.
Tested
Tazemetostat (drug), Abiraterone/prednisone (drug), Enzalutamide (drug)
Dates
Started 2019-11-18; completion 2024-11-04
Results posted
Yes

This is a global, multi-center, open-label, randomized phase 1b/2, active-controlled safety and efficacy study of oral administration of tazemetostat in combination with enzalutamide or abiraterone/prednisone (phase 1b) versus enzalutamide or abiraterone/prednisone alone in asymptomatic or mildly symptomatic subjects with progressive, metastatic castration-resistant prostate cancer (mCRPC) who have progressed on either abiraterone acetate, enzalutamide, or apalutamide or who are second generation anti-androgen treatment naive, and who have not received chemotherapy for mCRPC. This study is designed to determine the recommended phase 2 doses (RP2D) of tazemetostat in combination with eithe…

From ClinicalTrials.gov, last updated 2026-03-10. Full record, eligibility and contacts (opens in a new tab)

Industry funding

Epizyme, Inc. reported $535,018 in research payments for this study in 2025 (53 payments).

Products named: Tazverik

Research payments usually go to hospitals, universities and research sites to run a study, not to the investigators personally. A payment is not evidence of wrongdoing.

U.S. investigators named on this study

Clinicians the company named as principal investigators in its Open Payments reports.

Sites paid to run it

  • UPMC Cancer Center $124,081
  • Memorial Sloan Kettering Cancer Center $121,726
  • Dana Farber Cancer Institute $98,884
  • Sarah Cannon Cancer Institute at Hdh $66,554
  • Urology San Antonio $48,167
  • Biomedical Research Alliance of New York $29,423
  • Hematology Oncology Associates of the Treasure Coast $14,633
  • Associated Medical Professionals of Ny, PLLC $10,164
  • Sarah Cannon Research Institute $9,747
  • Urology Associates, PC $5,297
  • Xcancer $5,124
  • Comprehensive Cancer Centers of Nevada $869
  • Dana-Farber Cancer Institute $350

Sources: CMS Open Payments research payments (program year 2025) and ClinicalTrials.gov, U.S. National Library of Medicine.