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Stent registry shows Real-World results for blocked ureters

NCT ID NCT04197583

Knowledge-focused Sponsor: Boston Scientific Corporation 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 completed registry followed 379 people who received a Boston Scientific ureteral stent to treat a blocked ureter. The goal was to see how well the stent worked and if it caused any serious side effects. Patients also reported on their quality of life. The study provides real-world safety and effectiveness data for these stents.

What this could mean

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

Active substance
ureteral stent (implantable device)
What this could lead to
If successful, this registry confirms that the stents are safe and effective for routine use, supporting their continued availability.
What could go wrong
This is an observational registry, not a controlled trial, so it cannot prove the stents are better than alternatives. Results may not apply to all patients.

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

379 people

The number who actually took part.

Started

Feb 2020

Finished

Feb 2023

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Study will enroll patients who are receiving a Boston Scientific Ureteral stent or Urinary Diversion Stent as part of their standard of care.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

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 (for all Ureteral stent types except Urinary Diversion Stents): * Subject is undergoing placement of a Boston Scientific Ureteral Stent * Subject anatomy is appropriate to accommodate a stent size available in the study * Subject is able to accurately detect and report bladder function and pain * Subject is willing and able to: * Complete patient QoL questionnaire at specified time points (for subjects aged ≥ 18 years) * Return for all follow-up visits Inclusion Criteria (for Urinary Diversion Stents): * Subject is undergoing placement of a Boston Scientific Urinary Diversion Stent(s) * The anatomical features of the involved renal collecting system are known by either prior or concurrent urography or axial CT imaging * Subject is willing and able to return for all follow-up visits Exclusion Criteria (for Ureteral stents and Urinary Diversion Stents): * Subjects who meet any of the contraindications per individual stent DFU * Subjects receiving different stent type in case of bilateral/multiple stenting * Subjects with an indwelling ureteral stent(s) not planned to be removed prior to/or concurrently with the study stent implant

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Conditions

The condition(s) this trial relates to.

ureteral obstruction

As listed by the trial registrant

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

Ureter obstruction

Contacts and locations

Locations

  • Centre Hospit Prive St Gregoire Vivalto

    Saint-Grégoire, 35760, France

  • Indiana University Health

    Indianapolis, Indiana, 46202, United States

  • Mayo Clinic Phoenix

    Phoenix, Arizona, 85054, United States

  • Nagoya City University Hospital

    Nagoya, Aichi-ken, 467-8602, Japan

  • New York Presbyterian Hospital-Columbia University Medical Center

    New York, New York, 10032, United States

  • NorthShore University HealthSystem

    Glenview, Illinois, 60026, United States

  • Northwestern University-Department of Urology

    Chicago, Illinois, 60611, United States

  • Penn State Milton S. Hershey Medical Center

    Hershey, Pennsylvania, 17033, United States

  • University of Kansas Medical Center

    Kansas City, Kansas, 66160, United States

  • Vancouver General Hospital

    Vancouver, British Columbia, V5Z 1M9, Canada