111
Participants
Start Date
June 1, 2026
Primary Completion Date
July 31, 2027
Study Completion Date
July 31, 2027
Biospecimen Collection
Undergo tissue, urine, and blood sample collection
Computed Tomography
Undergo CT
Cystoscopy
Undergo cystoscopy
Magnetic Resonance Imaging
Undergo MRI
Pembrolizumab
Given IV
Photon Beam Radiation Therapy
Undergo photon beam RT
Positron Emission Tomography
Undergo PET
Questionnaire Administration
Ancillary studies
Transurethral Resection of Bladder Tumor
Undergo TURBT
RECRUITING
Mary Greeley Medical Center, Ames
RECRUITING
McFarland Clinic - Ames, Ames
RECRUITING
McFarland Clinic - Boone, Boone
RECRUITING
McFarland Clinic - Jefferson, Jefferson
RECRUITING
McFarland Clinic - Marshalltown, Marshalltown
RECRUITING
McFarland Clinic - Trinity Cancer Center, Fort Dodge
RECRUITING
Community Medical Center, Missoula
RECRUITING
Crossroads Cancer Center, Effingham
RECRUITING
Cancer Care Specialists of Illinois - Decatur, Decatur
RECRUITING
Decatur Memorial Hospital, Decatur
RECRUITING
Southern Illinois University School of Medicine, Springfield
RECRUITING
Shaw Cancer Center, Edwards
RECRUITING
Kootenai Health - Coeur d'Alene, Coeur d'Alene
RECRUITING
Kootenai Clinic Cancer Services - Post Falls, Post Falls
RECRUITING
Kootenai Clinic Cancer Services - Sandpoint, Sandpoint
National Cancer Institute (NCI)
NIH