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Magnetic stent removal spares kids from anesthesia

NCT ID NCT04384939

Symptom relief Sponsor: Assistance Publique - Hôpitaux de Paris 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a special ureteral stent with a magnetic end in 67 children with urinary tract problems or kidney transplants. The goal was to see if the stent could be removed without general anesthesia, using a magnetic catheter instead. The approach aims to make the removal process simpler and less stressful for children.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
magnetic-end Double-J ureteral stent
What this could lead to
If successful, this could make stent removal easier and avoid the need for general anesthesia in children.
What could go wrong
This is a small feasibility study (67 children) with no control group, so results may not apply broadly. The magnetic removal system may fail in some cases.

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

67 people

The number who actually took part.

Started

Dec 2021

Finished

Aug 2023

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

Up to 17 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: * Child aged between 0 and 17 years and 10 months at the surgery * Child operated at the Necker hospital for an uropathy or kidney graft need the insertion of JJ ureteral stent * Parents or legal guardians signed the Informed consent form * Social insurance affiliation Exclusion Criteria: * All clinical situation need an MRI * Contraindication with the experimental medical device (severe infections, obstruction, …) For the medico-economic study, a comparative group will be constituted with patients treated with classic ureteral stent in the Necker hospital in the previous years. This group will be matched with age (\<5 years, 5-12 years and \>13years), sex and surgery indication (kidney graft or other).

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Conditions

The condition(s) this trial relates to.

urinary system disorder urinary tract obstruction

As listed by the trial registrant

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

Kidney transplantation Uropathy

Contacts and locations

Locations

  • Hôpital Necker

    Paris, 75015, France

More trials for these conditions

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