Vacuum-Assisted sheath aims to clear kidney stones faster
NCT ID NCT07678255
First seen Jul 01, 2026 · Last updated Jul 02, 2026 · Updated 1 time
Summary
This trial tests whether a vacuum-assisted ureteral access sheath (ClearPetra) removes kidney stones more completely than a standard rigid sheath (Navigator) during flexible ureteroscopy. About 156 adults with stones 1-3 cm will be randomly assigned to one sheath. The main goal is to see if ClearPetra leads to a higher stone-free rate at one month, with fewer repeat treatments and similar safety.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- ClearPetra ureteral access sheath (vacuum-assisted) vs Navigator ureteral access sheath (standard rigid)
- What this could lead to
- If the vacuum-assisted sheath works better, it could mean fewer repeat procedures and shorter surgeries for people with kidney stones.
- What could go wrong
- This is a single-center trial with 156 participants, so results may not apply broadly. The new sheath might not improve stone clearance or could have unexpected complications.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Virgen del Rocio University Hospital
Seville, Seville, 41013, Spain
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