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Can we predict hidden polyps in kidney stone patients?

NCT ID NCT07559721

Knowledge-focused Sponsor: The First Hospital of Jilin University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study is looking for factors that might predict inflammatory polyps in the ureter (the tube from kidney to bladder) in people with kidney stones. Researchers will review past patient data and then test their predictions on new patients. The goal is to create a simple tool that helps surgeons know what to expect before surgery.

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 help doctors predict which kidney stone patients are likely to have inflammatory polyps, potentially improving surgical outcomes.
What could go wrong
This is an observational study, not a treatment trial. The model may not be accurate enough for widespread use, and results from one hospital may not apply to other populations.

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 779 people

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

Started

Jan 2018

Expected to finish

Feb 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

The study population includes adult patients with ureteral calculi who underwent ureteroscopic treatment at the First Hospital of Jilin University. The retrospective cohort includes patients treated between 2018 and 2025, and the prospective cohort is recruiting new patients for validation.

Ages

18 to 80 years

Sex

Anyone

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: * Patients aged 18 years or older undergoing ureteroscopic surgery for ureteral calculi at the First Hospital of Jilin University. * Complete clinical and imaging data available. Exclusion Criteria: * Patients with bilateral ureteral calculi. * Patients with preoperative nephrostomy or indwelling ureteral stent. * Patients with a history of ureteral or bladder cancer. * Patients with congenital ureteral anomalies or previous ureteral surgery. * Patients with severe coagulation disorders or contraindications to ureteroscopy. * Patients unable to provide informed consent.

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Conditions

The condition(s) this trial relates to.

Ureteral Calculi ureterolithiasis

As listed by the trial registrant

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

Ureteral calculi

How to take part

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

  1. The places running it

    1 site. 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

  • The First Hospital of Jilin University

    RECRUITING

    Changchun, Jilin, 130021, China

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