Using a self-expanding ureteral stent to treat difficult ureteral strictures
Official title: Efficacy and Safety of Self-expanding Ureteral Stent for Treating Refractory Ureteral Stricture: Results of a Multicenter Experience
Run by En Chu Kong Hospital · NCT05455307 · Data updated 2026-11-12
This study is testing whether a special stent can help people with tough ureteral strictures feel better and avoid complications over time.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 80 Years |
| Sex | All |
| Enrollment | 200 (estimated) |
| Sponsor | En Chu Kong Hospital Academic / other |
| Locations | 1 site (New Taipei City) |
| Status | Recruiting |
| Started | July 30, 2022 |
| Main results expected | July 30, 2024 |
| Study ends | July 30, 2027 |
| Registry record updated | July 13, 2022 |
| Trial ID | NCT05455307 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are individuals with refractory ureteral stricture who have undergone at least two prior ureteral dilation procedures.
✕Probably not a fit
Patients with poor cardiovascular function, uncontrolled urinary tract infections, or those unwilling to accept long-term stent placement may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study aims to evaluate the long-term efficacy and safety of a self-expanding ureteral stent in patients suffering from refractory ureteral stricture. Approximately 200 participants will be enrolled across four hospitals, where their renal function and associated complications will be monitored after the stent placement. The study is designed as a prospective, multi-center trial to gather comprehensive data on the treatment's effectiveness.
Why it matters
Potential benefit: If successful, this treatment could significantly improve urinary function and quality of life for patients with refractory ureteral stricture.
How similar studies have gone: While similar studies have explored ureteral stenting, this specific approach with the Allium ureteral stent is relatively novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * refractory ureteral stricture after at least two times of ureteral dilation Exclusion Criteria: * poor cardiovascular function for anesthesia unwilling to accept the long-term placement of ureteral stent uncontrolled urinary tract infection
Where it's running
-
En Chu Kong Hospital
New Taipei City, Taiwan Recruiting
Study contacts
- Principal investigator: Chung Cheng Wang, MD PhD — En Chu Kong Hospital
- Study coordinator: Chung Cheng Wang, MD PhD
- Email: ericwcc@ms27.hinet.net
- Phone: 886-26723456
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.