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STENT X: a Randomized Trial to Assess Stent-free Radical Cystectomy

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

Status
Withdrawn
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07655284
Enrollment
0
Registered
2026-06-17
Start date
2026-09-01
Completion date
2029-08-31
Last updated
2026-08-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bladder Cancer Requiring Cystectomy, Ureteral Stents

Keywords

bladder cancer, cystectomy, ureteral stents

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.

Interventions

DEVICEureteral stents

standard of care single-J externalized ureteral stents to be placed at time of radical cystectomy

no ureteral stents used at time of radical cystectomy

Sponsors

Brigham and Women's Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
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

Design outcomes

Primary

MeasureTime frameDescription
Post-operative readmission rate30-days after surgerypercent of patients re-admitted

Secondary

MeasureTime frameDescription
length of stay30 daysindex hospitalization (days after surgery until discharge, excluding pre-admission if applicable)
procedure duration30 dayssurgical time measured from incision to closing
blood transfusion rate30 dayspercent of patients requiring blood transfusion
Emergency room visits30 dayspercent of patients presenting to emergency room at least once after surgery
patient reported pain on analog scale30 daysanalog 0 to 10 scale where 0 is no pain (best) and 10 is excruciating pain (worst)
ureteral stricture rate30 dayspercent of patients developing ureteral stricture requiring intervention (e.g. nephrostomy tube placement)
urine leak rate30 dayspercent of patients developing urine leak requiring intervention (e.g. interventional radiology procedure)
pyelonephritis rate30 dayspercent of patients developing of urinary tract infection (defined by clinical sequelae of infection in setting of positive urinalysis requiring treatment with antibiotics)

Countries

Brazil, United States

Contacts

PRINCIPAL_INVESTIGATORTimothy N Clinton, MD

Brigham and Women's Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 14, 2026