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Disposable scope takes on stent removal – does it stack up?

NCT ID NCT04829461

Disease control Sponsor: Ambu Inc. 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 single-use, disposable cystoscope (aScope™ 4 Cysto) for removing ureteral stents, comparing it to standard reusable scopes. 102 adults with stents ready for removal took part. The main goal was to see if the disposable scope could successfully remove stents as well as the usual reusable ones.

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

102 people

The number who actually took part.

Started

Apr 2021

Finished

Jul 2022

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.

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: 1. Adult (male or female), ≥18 years old 2. Patient undergoing routine flexible cystoscopy 3. Patient with a ureteral stent in the urinary system that is ready to be removed. 4. No active urinary tract infection 5. Subject is willing and able to sign informed consent and HIPAA authorization and comply with requirements of the protocol. Exclusion Criteria: 1. History of prior bladder/urethral reconstructive surgery. 2. History of high-grade bladder cancer or carcinoma in-situ of the bladder, undergoing cystoscopy for follow-up/surveillance purposes. 3. Known unpassable urethral stricture 4. Febrile patient with active urinary tract infection (UTI) 5. Subjects with acute infection (acute urethritis, acute prostatitis, acute epididymitis) 6. Subject with severe coagulopathy 7. Patient is unable to read and/or understand study requirements 8. Patient is unable or unwilling to provide written consent to participate in the study. 9. Subject, in the opinion of the Investigator, has a severe comorbidity, poor general physical/mental health and/or a condition that will not

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As listed by the trial registrant

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

Cystoscopy Ureteral stent

Contacts and locations

Locations

  • The Pennsylvania State University and The Milton S. Hershey Medical Center

    Hershey, Pennsylvania, 17033, United States

  • University of Texas Southwestern Medical Center

    Dallas, Texas, 75390, United States

  • University of Wisconsin-Madison

    Madison, Wisconsin, 53792, United States

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