Urine test may spare bladder cancer patients from unnecessary second surgery
NCT ID NCT07130578
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a simple urine test can detect leftover cancer after initial surgery for high-risk bladder cancer. The goal is to help doctors decide who truly needs a second surgery, avoiding unnecessary procedures and their risks. About 60 adults with high-risk non-muscle-invasive bladder cancer will provide urine samples before a planned second surgery, and the test results will be compared to standard tissue analysis.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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May 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Adults (≥18 years) with histologically confirmed high-risk non-muscle-invasive bladder cancer (NMIBC) who have undergone initial transurethral resection of bladder tumor (TURBT) and are scheduled for second TURBT. Eligible tumors are urothelial carcinoma or bladder tumors with urothelial carcinoma as the predominant component (\>50%), with no evidence of muscle-invasive or metastatic disease.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Participants must meet all of the following criteria to be eligible for the study: 1. Male or female, aged 18 years or older. 2. Histologically confirmed non-muscle-invasive bladder tumor, with no evidence of muscle-invasive bladder cancer or metastatic disease. 3. Histologically confirmed urothelial carcinoma of the bladder or bladder tumor with urothelial carcinoma as the predominant component (\>50%). 4. At least one of the following conditions: 1. Incomplete initial transurethral resection of bladder tumor (TURBT) or suspected incomplete resection. 2. Absence of detrusor muscle in the initial TURBT pathological specimen (except for low-grade Ta stage tumors or carcinoma in situ \[CIS\]). 3. T1 stage tumor. 5. Willingness to provide a 50 mL urine sample between 2-6 weeks after the initial TURBT and prior to re-TURBT. 6. Willingness to provide tumor tissue samples for pathological examination. 7. Willingness to undergo genetic testing required for the trial. 8. Voluntarily agrees to participate in the study, has signed informed consent, demonstrates good compliance, and is willing to complete study follow-up. Exclusion Criteria: 1. Contraindications to transurethral resection of bladder tumor (TURBT). 2. Concurrent malignancy of the upper urinary tract (ureter or renal pelvis).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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General Hospital of Tianjin Medical University
RECRUITINGTianjin, 300000, China
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The second hospital of Tianjin Medical University
RECRUITINGTianjin, China
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Other studies related to the condition(s) this trial covers.
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- Can heated saline during bladder surgery stop tumors from coming back?
- Can a radioactive antibody light up hidden tumors on PET scans?
- Can a radioactive drug seek out and attack solid tumors?