RecruitingNot Applicable

Differences in Postoperative Symptoms With Four Ureteral Stents

United States272 participantsStarted 2024-03-21

Plain-language summary

This is a prospective randomized controlled trial designed to assess the differences in postoperative symptoms related to placement of a 6Fr Percuflex ureteral stents, 6Fr Tria ureteral stents, 4.8Fr Percuflex ureteral stents, and 4.8Fr Tria ureteral stents after ureteroscopy with laser lithotripsy for treatment of upper tract urinary stones. 272 participants will be enrolled and will be on study for up to approximately 10 weeks.

Who can participate

Age range

18 Years – 89 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patients with renal or ureteral urinary stones who require endoscopic treatment and stent placement in the outpatient operating room. Exclusion Criteria: * Pregnant patients * Patients with transplant kidneys * Patients with irreversible coagulopathy * Patients with known ureteral stricture disease * Non-English speaking, vulnerable patients such as lacking of decision-making capability, prisoner, adult unable to consent, will not be enrolled. * Patients with planned staged procedures. * Patients who have stent placed before surgery.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Ureteral Stent Symptom Questionnaire (USSQ) scores-Urinary symptoms

Timeframe: at time of stent removal 1-2 weeks after surgery (up to 4 weeks on study)

Ureteral Stent Symptom Questionnaire (USSQ) scores-Pain Index

Timeframe: at time of stent removal 1-2 weeks after surgery (up to 4 weeks on study)

Ureteral Stent Symptom Questionnaire (USSQ) scores-General Health

Timeframe: at time of stent removal 1-2 weeks after surgery (up to 4 weeks on study)

Ureteral Stent Symptom Questionnaire (USSQ) scores-Work Performance

Timeframe: at time of stent removal 1-2 weeks after surgery (up to 4 weeks on study)

Ureteral Stent Symptom Questionnaire (USSQ) scores-Sexual matters

Timeframe: at time of stent removal 1-2 weeks after surgery (up to 4 weeks on study)

Ureteral Stent Symptom Questionnaire (USSQ) scores-Urinary symptoms

Timeframe: at time of stent removal 3-6 weeks after surgery (up to 10 weeks on study)

Trial details

NCT IDNCT06083051

SponsorUniversity of Wisconsin, Madison

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-12

Contact for this trial

Shuang Li

608.263.8336 lis@urology.wisc.edu

View on ClinicalTrials.gov More Urinary Stone trials