Bladder preservation approach for patients with muscle-invasive bladder cancer and variant histology
Official title: IIT2023-13-BALLAS-VHTMT: Bladder Preservation for Patients With Muscle Invasive Bladder Cancer (MIBC) With Variant Histology
Run by Cedars-Sinai Medical Center · NCT06417190 · Data updated 2026-11-12
This study is testing a new treatment plan for patients with a specific type of bladder cancer to see if combining chemotherapy and radiation can help them better than past treatments.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 20 (estimated) |
| Sponsor | Cedars-Sinai Medical Center Academic / other |
| Drugs / interventions | chemotherapy, immunotherapy, radiation |
| Locations | 1 site (Los Angeles, California) |
| Status | Recruiting |
| Started | January 16, 2026 |
| Main results expected | December 2030 |
| Study ends | December 2030 |
| Registry record updated | August 6, 2026 |
| Trial ID | NCT06417190 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients diagnosed with muscle-invasive bladder cancer with variant histology, specifically those classified as cT2-T4N0M0.
✕Probably not a fit
Patients with diffuse carcinoma in situ, bilateral hydronephrosis, or those who have received prior pelvic radiotherapy may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase II interventional study evaluates the outcomes of patients with muscle-invasive bladder cancer (MIBC) that has variant histology. Participants will receive neoadjuvant chemotherapy, with or without immunotherapy, followed by trimodal therapy, which includes chemotherapy and radiation. The study aims to determine if this treatment can be effectively administered within 45 days of the initial chemotherapy, comparing results to historical controls with pure urothelial carcinoma. This research addresses a rare and understudied tumor type, focusing on improving treatment options for patients with variant histologies.
Why it matters
Potential benefit: If successful, this approach could provide a viable bladder preservation option for patients with variant histology MIBC, potentially improving their treatment outcomes.
How similar studies have gone: While there are limited retrospective studies on this topic, this study represents a novel prospective approach to treating variant histology MIBC.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Documented diagnosis of MIBC with variant histology, cT2-T4N0M0, confirmed by TURBT and CT C/A/P and/or PET. * Written informed consent obtained from subject and ability for subject to comply with the requirements of the study. Exclusion Criteria: * Evidence of diffuse cis on pathology * Presence of bilateral hydronephrosis (if hydronephrosis is present, can only be unilateral) * Prior radiotherapy to the pelvis * History of systemic therapy for MIBS * Presence of concurrent cancer (remote history of cancer (\>5 years) allowed if the patient is without evidence of disease)
Where it's running
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Cedars Sinai Medical Center
Los Angeles, California, United States Recruiting
Study contacts
- Principal investigator: Leslie Ballas, MD — Cedars-Sinai Medical Center
- Study coordinator: Clinical Trial Navigator
- Email: GroupCancerTrialInformation@cshs.org
- Phone: 310-423-5842
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.