Two routes to clear bladder stones: which surgery works better?
NCT ID NCT07810582
First seen Sep 09, 2026 · Last updated Sep 10, 2026 · Updated 1 time
Summary
Researchers compare two minimally invasive operations for adults with bladder stones. One approach, transurethral cystolithotripsy, reaches the bladder through the urethra. The other, percutaneous cystolithotripsy, goes through a small puncture in the lower belly. The trial randomly assigns 50 adults to one of the two procedures and tracks stone clearance, operation time, complications, catheter duration, and hospital stay.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- two minimally invasive surgical procedures for bladder stones: transurethral cystolithotripsy and percutaneous cystolithotripsy
- What this could lead to
- If one approach proves better, it could give surgeons clearer guidance on which operation to choose for adults with bladder stones.
- What could go wrong
- This is a small study of 50 people at a single center, so its results may not apply to all patients or hospitals. Both procedures carry risks like bleeding, infection, or incomplete stone removal.
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.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Oct 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2028
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.
- 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 patients aged 18 years or older * Diagnosed with single or multiple urinary bladder stones * Stone diameter between 1 and 4 cm at its largest diameter or cumulative stone diameter * Candidates for both transurethral and percutaneous endoscopic treatment modalities Exclusion Criteria: * Active urinary tract infection (UTI) * Uncorrected coagulopathy or bleeding disorders * Known urethral stricture or significant urethral pathology precluding safe transurethral instrumentation * History of bladder augmentation, major lower abdominal surgery, or pelvic radiotherapy * Concomitant bladder tumor or suspected bladder neoplasm * Stone located within a bladder diverticulum or within a contracted bladder * Requiring concomitant urological procedures during the same operative session (e.g., transurethral resection of the prostate \[TURP\] or lower ureteric stone extraction) * Urethral stones pushed back into the bladder * Refusal to participate in the study
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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 official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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.
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Other studies related to the condition(s) this trial covers.
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