Clinical trial Recruiting at 1 site Phase 3 Interventional Ages 18 and up

1-Year Recurrence After En Bloc Resection for Large Bladder Tumors

Official title: A Randomized Controlled Trial Comparing 1 Year Recurrence After Modified en Bloc Resection (ERBT) and Transurethral Resection (TURBT) for Large Bladder Tumors >2.5cm

Run by Rabin Medical Center · NCT07898033 · Data updated 2026-11-12

This trial tests whether en bloc resection of bladder tumors larger than 2.5 cm can reduce recurrence compared with standard transurethral resection in adults with non-muscle invasive bladder cancer.

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment136 (estimated)
SponsorRabin Medical Center
Academic / other
Drugs / interventionschemotherapy, immunotherapy
Locations1 site (Petah Tikva)
StatusRecruiting
StartedJune 8, 2026
Main results expectedJune 8, 2027
Study endsJune 8, 2028
Registry record updatedOctober 27, 2026
Trial IDNCT07898033 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 years or older with a single bladder tumor larger than 2.5 cm and good performance status (ECOG 0-2) who are candidates for endoscopic surgery.

Probably not a fit

Patients with multifocal tumors, metastatic disease, or those who do not respond to the surgical approach may not experience benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults with suspected non-muscle invasive bladder cancer and tumors larger than 2.5 cm will be randomized to receive either en bloc resection or transurethral resection of the bladder tumor. The study will compare pathological and oncological outcomes, including recurrence, between the two surgical approaches. Eligible participants will have ECOG performance status 0-2 and no prior systemic cancer therapies. Key exclusions include multifocal disease, metastasis, prior BCG-unresponsive cancer, and contraindications to endoscopic surgery. The trial is conducted at multiple centers with lead sponsorship by a named investigator, and participation requires informed consent.

Why it matters

Potential benefit: If successful, the en bloc approach could lower recurrence rates and improve pathological assessment for patients with large bladder tumors.

How similar studies have gone: Previous work in en bloc resection for bladder tumors shows promise but definitive evidence for large tumors remains under investigation.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients aged ≥18 years with
* Bladder tumor \>2.5cm measured on US\\CT\\MRI (suspected non-muscle invasive bladder cancer).
* Performance status (ECOG) ≤2.
* Signed informed consent form to participate in the study

Exclusion Criteria:

* Multifocal tumors (≥4 lesions).
* Prior history of BCG unresponsive bladder cancer.
* Prior systemic chemotherapy or immunotherapy for any malignancy.
* UTUC.
* Evidence of metastatic disease.
* Contraindications for endoscopic surgery for bladder tumor.
* Benign bladder tumor on postoperative pathology.

Where it's running

  • Rabin Medical Center
    Petah Tikva, Israel
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.