← Eichor
Study identifier: NCT05562830 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

A Substudy of Investigational Agents in Programmed Cell Death-1/Ligand 1 (PD-1/L1) Refractory Locally Advanced or Metastatic Urothelial Carcinoma (mUC) (MK-3475-04A)

Condition: Urothelial Carcinoma  ·  Sponsor: Merck Sharp & Dohme LLC

PhasePhase 1/Phase 2
Planned participants48
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This substudy is part of an umbrella platform study which is designed to evaluate investigational agents with or without pembrolizumab in participants with urothelial carcinoma who are in need of new treatment options. Substudy 04A will enroll participants with locally advanced or mUC whose disease is resistant to treatment with programmed cell death-1/ligand 1 (PD-1/L1) inhibitors. The protocol infrastructure will enable the rolling assignment of investigational treatments.

This description comes directly from the study's public registry record.

Talk to the study team

Toll Free Number  ·  1-888-577-8839  ·  Trialsites@msd.com

Always discuss trial participation with your own doctor first.

Locations (28)

University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 1045)Orange, California, United StatesRecruiting
University of California San Francisco ( Site 1044)San Francisco, California, United StatesRecruiting
Anschutz Cancer Pavilion ( Site 1017)Aurora, Colorado, United StatesCompleted
University of Chicago Medical Center ( Site 1037)Chicago, Illinois, United StatesRecruiting
Indiana University Melvin and Bren Simon Cancer Center ( Site 1011)Indianapolis, Indiana, United StatesRecruiting
Siteman Cancer Center ( Site 1038)St Louis, Missouri, United StatesRecruiting
Memorial Sloan Kettering Cancer Center ( Site 1031)New York, New York, United StatesRecruiting
Cleveland Clinic-Taussig Cancer Center ( Site 1036)Cleveland, Ohio, United StatesRecruiting
UPMC Hillman Cancer Center ( Site 1014)Pittsburgh, Pennsylvania, United StatesRecruiting
Huntsman Cancer Institute ( Site 1041)Salt Lake City, Utah, United StatesRecruiting
Royal Brisbane and Women's Hospital-Medical Oncology Clinical Trials Unit, Cancer Care Services ( Site 1952)Brisbane, Queensland, AustraliaCompleted
Princess Margaret Cancer Centre ( Site 1106)Toronto, Ontario, CanadaRecruiting

+ 16 more locations — full list on the registry record.

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT05562830