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Clinical Trials/NCT07655284
NCT07655284WithdrawnPhase 3

STENT X Non-stent Genito-urinary Tract Reconstruction After Radical Cystectomy for Bladder Cancer - a Prospective, Randomized, Controlled and Multi Institutional Trial

Brigham and Women's Hospital2 sites in 2 countries190 target enrollmentStarted: September 1, 2026Last updated:
Conditions
Interventions

Trial Snapshot

Phase
Phase 3
Status
Withdrawn
Enrollment
190
Locations
2
Primary Endpoint
Post-operative readmission rate

Study Overview

Brief Summary

Radical Cystectomy (RC) remains the gold standard for localized muscle-invasive bladder cancer (MIBC); however, use of ureteral stents at time of surgery remains controversial without level 1 evidence to comment on risks or benefits of their use. RC complications commonly include urinary tract infections (UTIs), pyelonephritis, ureteroileal leakage and stenosis, and can occur with either ileal conduit or orthotopic neobladder diversions. Traditionally, ureteral stents are thought to support anastomotic healing and reduce the risk of anastomotic leakage and strictures; however, emerging evidence from retrospective studies suggests that stent use may paradoxically increase rates of postoperative morbidity. This randomized, multicenter and prospective study aims to compare 30-day postoperative complication rates between stented and non-stented urinary diversions in patients undergoing RC for MIBC, in both ileal conduit or neobladder with either robotic or open approaches.

Detailed Description

Radical Cystectomy (RC) remains the gold standard for localized muscle-invasive bladder cancer (MIBC); however, use of ureteral stents at time of surgery remains controversial without level 1 evidence to comment on risks or benefits of their use. RC complications commonly include urinary tract infections (UTIs), pyelonephritis, ureteroileal leakage and stenosis, and can occur with either ileal conduit or orthotopic neobladder diversions. Traditionally, ureteral stents are thought to support anastomotic healing and reduce the risk of anastomotic leakage and strictures; however, emerging evidence from retrospective studies suggests that stent use may paradoxically increase rates of postoperative morbidity. This randomized, multicenter and prospective study aims to compare 30-day postoperative complication rates between stented and non-stented urinary diversions in patients undergoing RC for MIBC, in both ileal conduit or neobladder with either robotic or open approaches. Randomization between ureteroenteric anastomosis with or without ureteral stent placement will occur at time of surgery; the surgeon will know this information at time of surgery and the patient will be aware of the placement of stents following surgery as these are externalized and visible. The primary outcome will be complication rate in 30 days after the surgery. Secondary outcomes of this trial will include: length of stay, procedure duration, emergency room visits, patient reported pain, anastomotic leakage rate, ureteral stricture rate, post-operative nephrostomy tube placement, differences in complication rates between interrupted and running suture technique. The study will be conducted across three academic institutions: Brigham and Women's Hospital (BWH), Massachusetts General Hospital (MGH) and Instituto do Câncer do Estado de São Paulo (ICESP), Brazil.

Study Design

Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel
Primary Purpose
Treatment
Masking
None

Eligibility Criteria

Ages
18 Years to — (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •Adults (> 18 years old)
  • •Muscle invasive bladder cancer or non-muscle invasive bladder cancer with indication of Radical Cystectomy
  • •No concomitant surgeries like nephrectomies, colectomies or removal of other organs affected by the tumor (Except standard lymph node dissections as well as in men the prostate and seminal vesicles and in women the uterus, fallopian tubes, ovaries and vagina, that are considered part of the oncological radical cystectomy.)
  • •Patients who have the capacity to understand the study procedures and provide written informed consent

Exclusion Criteria

  • •Simultaneous surgical procedures (except those specified in the inclusion criteria that are considered part of a routine radical cystectomy)
  • •History of prior urinary diversion
  • •Patients who decline to participate, lack understanding of the study's purpose, or are unable to provide informed consent
  • •Cystectomy for other reasons than Bladder cancer
  • •Previous radiation therapy in the pelvis for any reason
  • •Extremely debilitated patients, malnourished individuals, or those undergoing palliative or hygienic cystectomy

Arms & Interventions

ureteral stents placed at time of cystectomy

Active Comparator

standard of care ureteral stent placement at time of radical cystectomy (control arm)

Intervention: ureteral stents (Device)

stent-free, no stent placement at time of cystectomy

Experimental

forgo ureteral stent placement at time of radical cystectomy (intervention arm)

Intervention: no ureteral stent (Device)

Outcomes

Primary Outcomes

Post-operative readmission rate

Time Frame: 30-days after surgery

percent of patients re-admitted

Secondary Outcomes

  • patient reported pain on analog scale(30 days)
  • length of stay(30 days)
  • procedure duration(30 days)
  • blood transfusion rate(30 days)
  • Emergency room visits(30 days)
  • ureteral stricture rate(30 days)
  • urine leak rate(30 days)
  • pyelonephritis rate(30 days)

Investigators

Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Timothy Clinton

Associate Surgeon

Brigham and Women's Hospital

Study Sites (2)

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