By InvitationNot Applicable

Impact of Ureteral Stent and Sheaths Size on Post-Operative Pain

United States100 participantsStarted 2026-05

Plain-language summary

The purpose of this study is to determine if post-operative stent size impacts stent-related pain and discomfort.

Who can participate

Age range

18 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 undergoing a retrograde intra-renal surgery (RIRS) (only patients undergoing the procedure for stone treatment will be included) who will require post-operative indwelling ureteral stent placement on a string at the conclusion of the procedure. Exclusion Criteria: * Patients with intra-operative ureteral injury who will require ureteral stent for extended time (more than 10 days, in that case a stent without a string will be used). * Patient undergoing ureteroscopy for any indication other than stone extraction. * Patients who are currently pregnant as determined by clinical presurgical screening.

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

Pain score post ureteroscopy procedure until stent removal determined by the primary operating team. Stent will be on a string

Timeframe: Starting post-operatively, daily, until stent is removed (estimated 7-14 days)

Trial details

NCT IDNCT06979583

SponsorMayo Clinic

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-05

View on ClinicalTrials.gov More Ureteral Stent-Related Symptom trials

Who can participate

Age range

18 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.