New aspiration sheath may protect kidneys during stone surgery

NCT ID NCT07685587

Recruiting now Disease control Sponsor: Namik Kemal University Source: ClinicalTrials.gov ↗

First seen Jul 06, 2026 · Last updated Jul 07, 2026 · Updated 1 time

Summary

This trial compares a new aspiration-enabled access sheath to a conventional one during retrograde intrarenal surgery (RIRS) for kidney stones. The new sheath continuously removes irrigation fluid to control pressure inside the kidney, potentially reducing temporary kidney injury. Researchers measure early kidney damage using blood and urine biomarkers (IL-18 and L-FABP) before and after surgery. The study includes 108 adults scheduled for RIRS, excluding those with chronic kidney failure or other kidney conditions.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: flexible and navigable ureteral access sheath
What this could lead to: If the new sheath reduces kidney injury, it could become a safer standard for kidney stone surgery, protecting kidney function better than current tools.
What could go wrong: This is a small, early-stage study (108 participants) measuring temporary biomarkers, not long-term outcomes. The new sheath may not meaningfully improve patient recovery.

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Conditions

The condition(s) this trial relates to.

acute kidney injury urolithiasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

UROLITHIASIS

Contacts and locations

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Study contacts

Contact

Phone: •••-•••-•••• Email: •••••@•••••

Locations

Tekirdag Namık Kemal University
RECRUITING

Tekirdağ, Turkey (Türkiye)

Contact Phone: •••-•••-•••• Email: •••••@•••••

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