A Study of Efficacy and Safety of Sacituzumab Tirumotecan (MK-2870) Plus Enfortumab Vedotin (EV) With and Without Pembrolizumab in Advanced Urothelial Carcinoma (MK-3475-04C/KEYMAKER-U04)

NCT06483334 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 38

Last updated 2026-02-18

No results posted yet for this study

Summary

This study is a substudy being conducted under one pembrolizumab umbrella master study KEYMAKER-U04. The substudy will consist of 2 parts. Part 1 will evaluate the safety and preliminary efficacy of sacituzumab tirumotecan plus enfortumab vedotin (EV). Part 2 will be based on Part 1 results and will evaluate the efficacy, pharmacokinetics, and safety of sacituzumab tirumotecan plus EV in combination with pembrolizumab in participants with advanced urothelial carcinoma.

Conditions

  • Metastatic Urothelial Carcinoma
  • Locally Advanced Urothelial Carcinoma

Interventions

BIOLOGICAL

Sacituzumab tirumotecan

IV infusion at different dose levels

BIOLOGICAL

Enfortumab Vedotin

IV infusion at different dose levels

BIOLOGICAL

Pembrolizumab

200 mg IV infusion

DRUG

Supportive care measures

Participants are allowed to take supportive care measures at the discretion of the investigator. Prophylactic supportive care measures may include but are not limited to antiemetic agents, antidiarrheal agents, granulocyte and erythroid growth factors, and blood transfusions.

Sponsors & Collaborators

Principal Investigators

  • Medical Director · Merck Sharp & Dohme LLC

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-07-17
Primary Completion
2028-03-31
Completion
2028-03-31
FDA Drug
Yes

Countries

  • United States
  • Canada
  • France
  • Israel
  • Italy
  • Netherlands
  • South Korea
  • Spain
  • Taiwan
  • United Kingdom

Study Locations

More Related Trials

Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06483334 on ClinicalTrials.gov