Clinical trialNCT04637594Active, not recruitingPhase 3Interventional

Trying to Find the Correct Length of Treatment With Immune Checkpoint Therapy

SponsorAlliance for Clinical Trials in OncologyEnrollment3Locally Advanced Bladder Urothelial CarcinomaLocally Advanced Renal Pelvis Urothelial CarcinomaLocally Advanced Ureter Urothelial CarcinomaLocally Advanced Urethral Urothelial CarcinomaLocally Advanced Urothelial CarcinomaMetastatic Bladder Urothelial Carcinoma+4 more conditions

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This phase III trial compares survival in urothelial cancer patients who stop immune checkpoint inhibitor treatment after being treated for about a year to those patients who continue treatment with immune checkpoint inhibitors. Immunotherapy with monoclonal antibodies, such as avelumab, durvalumab, pembrolizumab, atezolizumab, and nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Stopping immune checkpoint inhibitors early may still make the tumor shrink and patients may have similar survival rates as the patients who continue treatment. Stopping treatment early may also lead to fewer treatment-related side effects, an improvement in mental health, and a lower cost burden to patients.

clinicaltrials.gov ↗

Investigators

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

Xiao X. Wei, MD, MAS
Dana-Farber Cancer Institute
Study Chair
clinicaltrials.gov ↗

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

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

United States

Alaska Breast Care and Surgery Llc
Anchorage, Alaska, United States
Alaska Oncology and Hematology Llc
Anchorage, Alaska, United States
Alaska Women'S Cancer Care
Anchorage, Alaska, United States
Anchorage Associates in Radiation Medicine
Anchorage, Alaska, United States
Anchorage Oncology Centre
Anchorage, Alaska, United States
Anchorage Radiation Therapy Center
Anchorage, Alaska, United States
Katmai Oncology Group
Anchorage, Alaska, United States
Providence Alaska Medical Center
Anchorage, Alaska, United States
Fairbanks Memorial Hospital
Fairbanks, Alaska, United States
Cancer Center at Saint Joseph'S
Phoenix, Arizona, United States
Mercy Hospital Fort Smith
Fort Smith, Arkansas, United States
Chi Saint Vincent Cancer Center Hot Springs
Hot Springs, Arkansas, United States
University of Arkansas for Medical Sciences
Little Rock, Arkansas, United States
Kaiser Permanente-Deer Valley Medical Center
Antioch, California, United States
Mission Hope Medical Oncology - Arroyo Grande
Arroyo Grande, California, United States
Providence Saint Joseph Medical Center/disney Family Cancer Center
Burbank, California, United States
Kaiser Permanente Dublin
Dublin, California, United States
Kaiser Permanente-Fremont
Fremont, California, United States
Fresno Cancer Center
Fresno, California, United States
Kaiser Permanente-Fresno
Fresno, California, United States
Kaiser Permanente-Modesto
Modesto, California, United States
Kaiser Permanente Oakland-Broadway
Oakland, California, United States
Kaiser Permanente-Oakland
Oakland, California, United States
Stanford Cancer Institute Palo Alto
Palo Alto, California, United States
Kaiser Permanente-Rancho Cordova Cancer Center
Rancho Cordova, California, United States
Kaiser Permanente- Marshall Medical Offices
Redwood City, California, United States
Kaiser Permanente-Richmond
Richmond, California, United States
Rohnert Park Cancer Center
Rohnert Park, California, United States
Kaiser Permanente-Roseville
Roseville, California, United States
the Permanente Medical Group-Roseville Radiation Oncology
Roseville, California, United States
Kaiser Permanente Downtown Commons
Sacramento, California, United States
Kaiser Permanente-South Sacramento
Sacramento, California, United States
South Sacramento Cancer Center
Sacramento, California, United States
Kaiser Permanente-San Francisco
San Francisco, California, United States
Kaiser Permanente-Santa Teresa-San Jose
San Jose, California, United States
Kaiser Permanente San Leandro
San Leandro, California, United States
Pacific Central Coast Health Center-San Luis Obispo
San Luis Obispo, California, United States
Kaiser San Rafael-Gallinas
San Rafael, California, United States
Kaiser Permanente Medical Center - Santa Clara
Santa Clara, California, United States
Mission Hope Medical Oncology - Santa Maria
Santa Maria, California, United States

337 more sites on the registry record.ClinicalTrials.gov ↗

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

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

AtezolizumabAvelumabDurvalumabNivolumabPembrolizumab

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

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

Start: 27 May 2022
Primary completion: 1 Jun 2024
Completion: 30 Sept 2030
Last update posted: 20 Mar 2026
Registered enrollment: 3
Registry id: NCT04637594

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.