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Clinical trialNCT03854474Active, not recruitingPhase 1/PHASE2Interventional

Testing the Addition of Tazemetostat to the Immunotherapy Drug, Pembrolizumab (MK-3475), in Advanced Urothelial Carcinoma

SponsorNational Cancer Institute (NCI)Enrollment30Locally Advanced Urothelial CarcinomaMetastatic Urothelial CarcinomaStage III Bladder Cancer AJCC v8Stage IV Bladder Cancer AJCC v8
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

  • Maha H Hussain

    University Health Network Princess Margaret Cancer Center LAO

    Principal Investigator

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

34 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

Canada
  • University Health Network-Princess Margaret Hospital

    Toronto, Ontario, Canada

United States
  • Mayo Clinic Hospital in Arizona

    Phoenix, Arizona, United States

  • Mayo Clinic in Arizona

    Scottsdale, Arizona, United States

  • Smilow Cancer Hospital-Derby Care Center

    Derby, Connecticut, United States

  • Smilow Cancer Hospital Care Center-Fairfield

    Fairfield, Connecticut, United States

  • Smilow Cancer Hospital Care Center - Guilford

    Guilford, Connecticut, United States

  • Smilow Cancer Hospital Care Center at Saint Francis

    Hartford, Connecticut, United States

  • Smilow Cancer Center/yale-New Haven Hospital

    New Haven, Connecticut, United States

  • Yale University

    New Haven, Connecticut, United States

  • Yale-New Haven Hospital North Haven Medical Center

    North Haven, Connecticut, United States

  • Smilow Cancer Hospital-Orange Care Center

    Orange, Connecticut, United States

  • Smilow Cancer Hospital-Torrington Care Center

    Torrington, Connecticut, United States

  • Smilow Cancer Hospital Care Center-Trumbull

    Trumbull, Connecticut, United States

  • Smilow Cancer Hospital-Waterbury Care Center

    Waterbury, Connecticut, United States

  • Smilow Cancer Hospital Care Center - Waterford

    Waterford, Connecticut, United States

  • Mayo Clinic in Florida

    Jacksonville, Florida, United States

  • Northwestern University

    Chicago, Illinois, United States

  • University of Kansas Clinical Research Center

    Fairway, Kansas, United States

  • Haysmed

    Hays, Kansas, United States

  • Lawrence Memorial Hospital

    Lawrence, Kansas, United States

  • the University of Kansas Cancer Center - Olathe

    Olathe, Kansas, United States

  • University of Kansas Cancer Center-Overland Park

    Overland Park, Kansas, United States

  • Mercy Hospital Pittsburg

    Pittsburg, Kansas, United States

  • Salina Regional Health Center

    Salina, Kansas, United States

  • University of Kansas Health System Saint Francis Campus

    Topeka, Kansas, United States

  • University of Kansas Hospital-Westwood Cancer Center

    Westwood, Kansas, United States

  • University of Kentucky/markey Cancer Center

    Lexington, Kentucky, United States

  • Mayo Clinic in Rochester

    Rochester, Minnesota, United States

  • University Health Truman Medical Center

    Kansas City, Missouri, United States

  • University of Kansas Cancer Center - North

    Kansas City, Missouri, United States

  • University of Kansas Cancer Center - Lee'S Summit

    Lee's Summit, Missouri, United States

  • University of Kansas Cancer Center at North Kansas City Hospital

    North Kansas City, Missouri, United States

  • Dartmouth Hitchcock Medical Center/dartmouth Cancer Center

    Lebanon, New Hampshire, United States

  • University of Pittsburgh Cancer Institute (upci)

    Pittsburgh, Pennsylvania, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
18 Nov 2019
Primary completion
30 Jun 2027
Completion
30 Jun 2027
Last update posted
11 Jun 2026
Registered enrollment
30
Registry id
NCT03854474

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.