FANS vs CVAC for Medium to Large Kidney Stones

This study is comparing two new devices, Flexible and Navigable Suction (FANS) sheaths and the CVAC ureteroscope, used during ureteroscopy (a procedure to remove kidney stones). Both devices help surgeons remove stone fragments more effectively during the procedure. The study wants to see which device leads to a higher "stone free rate" (meaning no stones are left behind) up to six weeks after surgery. You might be able to join if you are 18 or older, have a clinical diagnosis of kidney stones (Nephrolithiasis), and your stones are between 8 and 20 millimeters in size. You cannot join if you have severe medical conditions that prevent you from having general anesthesia. The current recruitment status is unclear.

Study design
This study plans to enroll 159 participants to compare two different devices used during ureteroscopy.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Your stone free rate will be measured up to six weeks after the procedure.

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NCT07514351

FANS vs CVAC for Medium to Large Stones

Not Yet Recruiting
NAAges 18+InterventionalTreatment
Ohio State University
~159 participants
Updated 2026-04-07 on ClinicalTrials.gov
What's tested:ureteroscopyCVAC

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
stone free rate
Measured over up to six weeks
Kidney Stones
Nephrolithiasis
1 sites across 1 states
Ohio1
  • Matthew Lee, MD · PRINCIPAL_INVESTIGATOR · Ohio State University
  • Bodo Knudsen, MD · PRINCIPAL_INVESTIGATOR · Ohio State University
  • Michael Sourial, MD · PRINCIPAL_INVESTIGATOR · Ohio State University

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Eligibility criteria

Inclusion

Clinical diagnosis of Nephrolithiasis
Total linear stone diameter 8-20 mm in size

Exclusion

Severe medical comorbidities causing inability to undergo general anesthesia
  • stone free rateup to six weeks

    Journal of Endourology definitions using CT evidence