Direct in-scope suction during flexible ureterorenoscopy for kidney and proximal ureter stones
Official title: Flexible Ureterorenoscope With Suction: An Innovative Approach
Run by Hitit University · NCT07864194 · Data updated 2026-11-12
This study tests whether using direct in-scope suction during flexible ureterorenoscopy helps reduce infections and improve outcomes for adults with kidney or proximal ureter stones.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 70 (estimated) |
| Sponsor | Hitit University Academic / other |
| Locations | 1 site (Çorum, Çorum) |
| Status | Recruiting |
| Started | July 7, 2026 |
| Main results expected | October 30, 2026 |
| Study ends | November 15, 2026 |
| Registry record updated | October 7, 2026 |
| Trial ID | NCT07864194 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 years and older with a single kidney or proximal ureter stone scheduled for RIRS at the study site.
✕Probably not a fit
Patients with multiple stones, preexisting urinary tract infection, pregnancy, or bleeding disorders may not benefit and are excluded.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This prospective, randomized study compares standard flexible ureterorenoscopy to a suction-enabled approach during retrograde intrarenal surgery (RIRS) for renal or proximal ureteral stones. Seventy adults will be enrolled and assigned 1:1 to either conventional ureterorenoscopy or direct in-scope suction (DISS) with single-use equipment. Outcomes include postoperative infections (fever, SIRS, sepsis), operative parameters, length of stay, need for reoperation, and stone-free status assessed by CT at four weeks. Data collection occurs intraoperatively and through postoperative follow-up at the single center in Çorum, Türkiye. The trial aims to determine if DISS improves visualization, lowers intrarenal pressure-related complications, and enhances overall recovery.
Why it matters
Potential benefit: If successful, using DISS could reduce infectious complications and improve stone clearance after RIRS.
How similar studies have gone: Previous work suggests suction-assisted approaches may improve visualization and safety, but this exact DISS comparison in RIRS is being tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adults aged 18 years or older. * A single stone located in the kidney or proximal ureter. * Scheduled to undergo retrograde intrarenal surgery (RIRS) by the study's surgical team. Exclusion Criteria: * Multiple renal or proximal ureteral stones. * Age younger than 18 years. * Pregnancy. * Preoperative urinary tract infection. * Bleeding diathesis.
Where it's running
-
Department of Urology, Hitit University Çorum Erol Olçok Training and Research Hospital, Çorum, Türkiye
Çorum, Çorum, Turkey (Türkiye) Recruiting
Study contacts
- Study coordinator: Mustafa Serdar Çağlayan
- Email: serdar.09.09@hotmail.com
- Phone: +90 507 431 1951
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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.