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Routine urine test before stent removal may be unnecessary

NCT ID NCT04913753

Knowledge-focused Sponsor: University Hospital, Tours 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether a routine urine culture before removing a ureteral stent (a small tube from kidney to bladder) helps prevent urinary infections. Over 2200 adults were split into two groups: one got the standard urine test, the other did not. Researchers then tracked infections for one month after removal to see if the test made any difference.

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 show that skipping routine urine cultures before stent removal is safe, saving time and healthcare costs.
What could go wrong
This is an observational study, not a treatment trial. It may not change practice if results are inconclusive or limited to this hospital setting.

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

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

2,200 people

The number who actually took part.

Started

Jun 2021

Finished

Dec 2025

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.

Ages

18 to 100 years

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: * Participant ≥ 18 years of age * Scheduled to have a double J catheter ablation * Participants covered by or entitled to social security * Written informed consent obtained from the participant * Ability for participant to comply with the requirements of the study Exclusion Criteria: * Patients already receiving antibiotics other than urological reasons and transplanted patients * Study interventions contraindications * Pregnancy, breastfeeding * Patient under tutorship or curators * Deprivation of liberty

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Conditions

The condition(s) this trial relates to.

urinary tract infection

As listed by the trial registrant

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

Urinary infection

Contacts and locations

Locations

  • BRUYERE

    Tours, 37044, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.