ClearPetra™ Vacuum-assisted Ureteral Access Sheath vs Traditional Approach
Stopped early · Not applicable
Conditions studied: Nephrolithiasis, Kidney Stone
In brief
Ureteroscopy has been considered the best approach when treating renal stones smaller than 2 cm. This procedure is usually performed together with ureteral access sheaths, which helps protect the ureter mucosa and lowers intrarenal pressure. Recently, a new vacuum-assisted ureteral access sheath called ClearPetra has entered US market and allows for continuous stone fragmentation and aspiration. Because there is little information on comparing this device with traditional approach (no sheath or non-vacuum-assisted sheath) in American population, we aim to compare those devices in terms of their ability to clear the kidney from kidney stones, as well as reduce infection rates postoperatively.
Key facts
- Study ID
- NCT06547632
- Run by
- University of Kansas Medical Center
- People needed
- 3
- Starts
- 2025-07-31
- Expected to finish
- 2026-02-27
- Last updated by the study team
- 2026-05-06
Who can join
Age: 18 and older. Sex: any. Healthy volunteers: accepted.
You may qualify if…
- Males or females over18 years of age
- Undergoing primary flexible ureteroscopy for retrograde intrarenal surgery
- Total stone burden between 1.0 to 2.5 cm
You may not qualify if…
- Undergoing bilateral stone treatment during the same procedure
- Patients with known genitourinary anatomical abnormalities
- Uncorrected coagulopathy
- Patients with urinary diversions
- Chronic external urinary catheters
- Women who are pregnant
- Immunosuppressed patients
- Non-elective procedures
Where it is running
- University of Kansas Medical Center — Kansas City, Kansas, United States
Full record on ClinicalTrials.gov
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