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Symbiotic-GU-06: A Study to Learn About PF-08634404 Alone or In Combination With Enfortumab Vedotin in Urothelial Cancer
Sponsor: Pfizer
Summary
This study is being done to learn more about a new medicine called PF-08634404. It is for adults with a type of bladder cancer called locally advanced or metastatic urothelial cancer (LA/mUC), meaning the cancer has spread to nearby tissues or other parts of the body. The purpose of the study is to see if PF-08634404 is safe, how well it works, how it moves through the body, and how it affects the cancer. The study will also look at how the medicine may change certain markers in the body that are linked to cancer. To join the study, participants must: * Be adults (18 years or older) and * Have locally advanced or metastatic urothelial cancer, The study has two groups: * Cohort A: People who have already received treatment for their cancer will get the study medicine ( PF-08634404) alone. * Cohort B: People who have not had treatment before will get the study medicine along with another cancer medicine called enfortumab vedotin. Everyone in the study will get the study medicine through a vein (IV infusion) with or without enfortumab vedotin. Treatment will continue as long as it helps and side effects are manageable. Before starting, participants will go through a screening period to check if they are eligible. During the study, they will have regular visits for treatment, health checks, and tests to see how the cancer is responding. Scans will be done regularly to monitor the cancer. If the cancer gets worse but the treatment is still helping and side effects are manageable, participants may be allowed to continue treatment with their doctor's and the sponsor's agreement.
Official title: AN INTERVENTIONAL PHASE 1B/2, OPEN-LABEL STUDY TO INVESTIGATE THE SAFETY, ANTITUMOR ACTIVITY, AND PHARMACOKINETICS OF PF 08634404 MONOTHERAPY OR IN COMBINATION WITH ENFORTUMAB VEDOTIN IN ADULT PARTICIPANTS WITH LOCALLY ADVANCED OR METASTATIC UROTHELIAL CANCER
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
132
Start Date
2026-03-11
Completion Date
2028-09-05
Last Updated
2026-04-07
Healthy Volunteers
No
Interventions
PF-08634404
Concentrate for solution for Infusion.
Enfortumab Vedotin
Powder for concentrate for solution for infusion
Locations (25)
Rocky Mountain Cancer Centers, LLP
Aurora, Colorado, United States
Rocky Mountain Cancer Centers, LLP
Denver, Colorado, United States
Rocky Mountain Cancer Centers, LLP
Lone Tree, Colorado, United States
Sarah Cannon Research Institute
Nashville, Tennessee, United States
SCRI Oncology Partners
Nashville, Tennessee, United States
Texas Oncology - Central/South Texas
Austin, Texas, United States
Texas Oncology - Austin
Austin, Texas, United States
Texas Oncology - Central/South Texas
Austin, Texas, United States
Texas Oncology - Central/South Texas
Austin, Texas, United States
Texas Oncology - Central South
Austin, Texas, United States
Texas Oncology - Central/South Texas
Austin, Texas, United States
Texas Oncology - Central/South Texas
Harlingen, Texas, United States
US Oncology Investigational Products Center (IPC)
Irving, Texas, United States
Texas Oncology - Central/South Texas
McAllen, Texas, United States
Texas Oncology - Central/South Texas
Waco, Texas, United States
Oncology & Hematology Associates of Southwest Virginia, Inc.,DBA Blue Ridge Cancer Care
Blacksburg, Virginia, United States
Virginia Cancer Specialists, PC
Fairfax, Virginia, United States
Oncology & Hematology Associates of Southwest Virginia, Inc.,DBA Blue Ridge Cancer Care
Low Moor, Virginia, United States
Virginia Oncology Associates
Norfolk, Virginia, United States
Oncology & Hematology Associates of Southwest Virginia, Inc.,DBA Blue Ridge Cancer Care
Roanoke, Virginia, United States
Oncology & Hematology Associates of Southwest Virginia, Inc.,DBA Blue Ridge Cancer Care
Salem, Virginia, United States
Oncology & Hematology Associates of Southwest Virginia, Inc.,DBA Blue Ridge Cancer Care
Wytheville, Virginia, United States
Icon Cancer Centre Wesley
Auchenflower, Queensland, Australia
Hospital Oncologico Dr. Isaac Gonzalez-Martinez
Rio Piedras, Puerto Rico
Pan American Center for Oncology Trials, LLC
Rio Piedras, Puerto Rico