Evaluation of a new disposable ureteroscope for kidney stone treatment

First Clinical Evaluation of the New Flexible Disposable Ureteroscope (LithoVue Elite): A Multicenter Single-arm Prospective Trial

Not applicable Interventional Centre hospitalier de l'Université de Montréal (CHUM) · NCT04900688

This study is testing a new disposable ureteroscope to see if it works better than regular ones for treating kidney stones in patients undergoing a specific procedure.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment150 (estimated)
Ages18 Years and up
SexAll
SponsorCentre hospitalier de l'Université de Montréal (CHUM) Academic / other
Locations6 sites (Vancouver, British Columbia and 5 other locations)
Trial IDNCT04900688 on ClinicalTrials.gov

What this trial studies

This study evaluates the LithoVue Elite disposable flexible ureteroscope in patients undergoing ureteroscopy and laser lithotripsy for kidney stones. It is a single-arm, multicenter trial involving six institutions, aiming to assess the ureteroscope's performance compared to standard devices. The study will measure outcomes such as stone-free rates, postoperative pain, quality of life, and infection rates, while also examining the impact of intra-renal pressure during the procedure. A total of 150 participants will be recruited, with each site responsible for 25 patients.

Who should consider this trial

Good fit: Ideal candidates are adults over 18 scheduled for ureteroscopy and laser lithotripsy with non-obstructing renal stones measuring 20 mm or less.

Not a fit: Patients with indwelling nephrostomy tubes or severe hydronephrosis may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved outcomes and reduced complications for patients undergoing treatment for kidney stones.

How similar studies have performed: Other studies have shown success with similar ureteroscope evaluations, but this specific device's performance is being assessed for the first time.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient scheduled for ureteroscopy and laser lithotripsy
* Non-obstructing renal stone 2 cm total stone diameter (if multiple stones, then sum of maximum diameters) or less undergoing flexible ureteroscopy
* age \> 18 years

Exclusion Criteria:

* age \< 18 years
* pregnancy status =positive
* indwelling nephrostomy tube
* severe hydronephrosis that in the opinion of the investigator, will make it challenging to make the patient stone free
* renal anomalies

Where this trial is running

Vancouver, British Columbia and 5 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Kidney Stonerenal stone, ureteroscopy, laser lithotrypsy, ureteroscope
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.