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Which stone removal method works best for special bladder pouches?

NCT ID NCT07643454

Knowledge-focused Sponsor: Hospices Civils de Lyon Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jul 02, 2026 · Updated 3 times

Summary

This study compares four surgical techniques for removing bladder stones in patients who have a continent catheterizable urinary reservoir, a surgically created pouch that stores urine. The techniques include using a mini-percussion device through the stoma, a flexible scope through the stoma, a puncture through the skin, and open surgery. Researchers will look at how much stone remains after surgery and how patients' quality of life is affected. The goal is to provide better evidence for choosing the safest and most effective 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 study could provide clearer guidance on which surgical technique is best for removing bladder stones in patients with continent urinary reservoirs, potentially reducing complications and improving recovery.
What could go wrong
This is a retrospective study, meaning it looks back at past data rather than testing a new treatment. It cannot prove cause and effect, and results may be influenced by differences in patient groups or how procedures were performed.

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

About 80 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Jan 2027

An estimate. End dates often move.

Lead sponsor

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

Major patients with a continent cutaneous urinary diversion, followed in the urology departments of Lyon Sud Hospital and Édouard Herriot Hospital

Ages

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult patient (aged 18 years or older) * Patient with a catheterizable continent urinary diversion * History of surgical intervention via vesicolithotomy, percutaneous cystolitholapaxy, trans-stomal cystolitholapaxy, or flexible endoscopic laser cystolithotripsy via the continent stoma between 01/01/2015 and 31/12/2024 * Patient has expressed non-opposition to participate in the research Exclusion Criteria: * Percutaneous or trans-stomal surgery for foreign body removal * Postoperative follow-up period of less than 1 month after lithotripsy (Except for Clavien-Dindo Grade V cases)

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Conditions

The condition(s) this trial relates to.

bladder calculus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Bladder calculi Continent catheterizable urinary reservoir Open cystolithotomy Trans-stomal bladder lithotripsy

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Hôpital Edouard Herriot

    Lyon, 69003, France

  • Hôpital Lyon Sud

    Pierre-Bénite, 69495, France

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