Testing whether trained dogs can sniff out bladder cancer in urine samples
Tests whether trained sniffer dogs can detect bladder cancer from urine samples in adults.
Key facts
- Who runs it
- University Hospital, Strasbourg, France
- Where
- Colmar and Strasbourg, FranceSee the 2 sites
- Trial code
- Registry title
- Olfactive Detection of Urothelial Carcinoma by Sniffer Dogs
- Status
- Recruiting
- People taking part
- 340 people, planned
- Started
- 20 Jun 2025
- Planned end
- Sept 2026
- Type of study
- Observational, 2 groups
- Treatments tested
- olfactory detection by dogs
- Record updated
- 12 January 2026
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults who are scheduled for an endourological operation that starts with a cystoscopy, and who have a planned urine sample.
- Age
- Over 18 years.
- Sex
- All sexes can join.
Main reasons for not taking part
- No signed informed consent, or cannot be given clear information
- Under guardianship, conservatorship or judicial protection
- Past cancer other than urothelial bladder cancer, unless in complete remission for more than 5 years
- Pregnant or breastfeeding women
The registry criteria, word for word
Show all 8 criteriaShow less
Who can take part
- 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
Who cannot take part
- History of cancer other than urothelial bladder carcinoma, unless in complete remission for > 5 years
- 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
- Pregnant or breastfeeding women
Where in France
- Hôpitaux Civils de ColmarColmar, FranceContact: Marc SCHNEIDERTaking people
- Hopitaux Universitaires de StrasbourgStrasbourg, FranceContact: Victor GAILLARDTaking people
About the trial
What the trial wants to find out
The aim of this study is to estimate the sensitivity of olfactory detection of urothelial carcinomas of the bladder in urine samples by assistance dogs trained in this practice.
The 2 groups in the trial
- Positive bladder tumor
Bladder tumor present during cystoscopy and confirmed by pathological examination.
Treatment: olfactory detection by dogs
- Negative bladder tumor
No bladder tumor on cystoscopy/suspicious lesion but with negative pathological analysis
Treatment: olfactory detection by dogs
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Olfactive Detection of Urothelial Carcinoma by Sniffer Dogs
- Plain-language title
- Testing whether trained dogs can sniff out bladder cancer in urine samplesGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 12 November 2026.
- Record updated
- 12 January 2026