Dogs sniff out bladder cancer in urine samples
NCT ID NCT07334314
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is testing whether specially trained dogs can detect bladder cancer by smelling urine samples. Researchers will collect urine from 340 adults scheduled for bladder surgery and see how often the dogs correctly identify cancer. If it works, this could lead to a simple, non-invasive screening method.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could point toward a new, non-invasive way to screen for bladder cancer using trained dogs.
- What could go wrong
- This is an early study testing a novel approach. Dogs may not be consistent enough for widespread use, and results may not apply to all patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 340 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2025
- Expected to finish
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Sep 2026
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
Subject scheduled for any endourological surgery involving an initial cystoscopy, the most common of which are: transurethral resection of the bladder, transurethral resection of the prostate, internal optical urethrotomy, bladder lithoclast, ureteral stent replacement, ureteroscopy, etc. (non-exhaustive list). Recruitment will take place in the urology department, during the preoperative consultation or during hospitalization.
- 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: * Adult (\> 18 years old) * Subject scheduled for any endourological surgery involving an initial cystoscopy, the most common of which are: transurethral resection of the bladder, transurethral resection of the prostate, internal optical urethrotomy, bladder lithoclast, ureteral stent replacement, ureteroscopy, etc. (non-exhaustive list) * Subjects for whom a urine sample (for bacteriological or cytological testing) is planned as part of routine practice in the month prior to the procedure * Subjects affiliated with a health insurance plan or beneficiaries of such a plan Exclusion Criteria: * Absence of signed informed consent / inability to provide the subject with informed information (emergency situations, difficulties in understanding the subject, etc.) * Patient under guardianship, conservatorship, or judicial protection * History of cancer other than urothelial bladder carcinoma, unless in complete remission for \> 5 years * Pregnant or breastfeeding women
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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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Hôpitaux Civils de Colmar
RECRUITINGColmar, France
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Hôpitaux Universitaires de Strasbourg
RECRUITINGStrasbourg, France
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- Can tumor genes decide who keeps their bladder?
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