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Bladder Washing Cytology for Detection of Urothelial Carcinoma Using Catheter or Flexible Cystoscope: Which is Better?

NCT05643807 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 414

Last updated 2023-02-10

No results posted yet for this study

Summary

Urine cytology can be collected with spontaneous urine or by washing the bladder. It is commonly accepted among urologist that instrumental bladder washing is the method of choice. There are, however, no solid recommendations regarding the method to collect the urine for bladder wash cytology during cystoscopy. There are mainly two possibilities: 1) the use of an intermittent bladder catheter after the removal of the cystoscope or 2) bladder lavage through working channel of the flexible cystoscope itself. The first choice may increase the number of collected cells because of the larger caliber of the catheter compared to the working channel and thus the better efficacy of bladder wash. However, this method is certainly more invasive and possibly more expensive. To the best of our knowledge and according to available literature, none of both collection method can be defined as gold standard. The aim of the study is to show that use of flexible cystoscope brings the same results in terms of quality of the urine collection for analysis as the use of intermittent bladder catheter and is less unpleasant for the patient. If our study confirms the non-inferiority of "direct" collection through the cystoscope, this will allow the establishment of recommendations in this sense in order to simplify the procedure and reduce as much as possible the manipulations within the urogenital tract.

Conditions

Interventions

DEVICE

Flexible cystoscopy

Urinary cytology will be collected through the flexible cystoscope itself at the end the cystoscopy. Before starting the urinary collection, the cystoscope will either be placed in front of a suspected intravesical lesion (if present) or at the bladder neck (if no lesion present).

DEVICE

Urinary catheter

Urinary cytology will be collected through a Ch14 urinary catheter after the cystoscopy

Sponsors & Collaborators

  • Centre Hospitalier Universitaire Vaudois

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
MALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-02-08
Primary Completion
2024-06-01
Completion
2024-11-30

Countries

  • Switzerland

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05643807 on ClinicalTrials.gov