Clinical trial Recruiting at 10 sites Observational Ages 18 and up

Stone clearance with steerable ureteroscopic evacuation compared with other methods

Official title: Evaluating the Safety and Effectiveness of Steerable Ureteroscopic Renal Evacuation (SURE) With the CVAC® System Compared to Other Therapeutic Interventions for the Treatment of Renal Stones: a Prospective, Observational Trial

Run by Calyxo, Inc. · NCT07155005 · Data updated 2026-11-12

This study tests whether the CVAC/SURE approach helps clear kidney stones more effectively than standard renal-stone interventions in patients needing ureteroscopy or PCNL.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment1000 (estimated)
SponsorCalyxo, Inc.
Industry-sponsored
Locations10 sites (Miami, Florida and 9 other locations)
StatusRecruiting
StartedOctober 12, 2026
Main results expectedDecember 2028
Study endsDecember 2029
Registry record updatedNovember 2, 2026
Trial IDNCT07155005 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults requiring ureteroscopy with laser lithotripsy or PCNL for renal stones who can complete follow-up and provide consent at participating sites.

Probably not a fit

Patients with active infection, significant comorbidities, pregnancy, or anatomical abnormalities may not benefit from this approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study will prospectively accumulate data from up to 25 sites and up to 250 participants to compare the performance and safety of the CVAC System with SURE and other renal-stone techniques. Patients undergoing ureteroscopy with laser lithotripsy or PCNL may be enrolled and followed per protocol. The study includes multiple wearable and surgical approaches such as CVAC, FANS in flexible ureteroscopy, and direct in-scope suction, as well as traditional ureteroscopy without suction and PCNL to evaluate real-world outcomes. Eligibility requires candidacy for ureteroscopy or PCNL, ability to follow up, and informed consent; exclusion includes active infection, history of sepsis, significant comorbidities, and certain anatomical abnormalities. Lead sponsor is Calyxo, Inc., with sites at University of Miami, Wichita Urology Group, and University at Buffalo.

Why it matters

Potential benefit: If successful, the approach could offer safer or more effective stone clearance options and inform future practice patterns for renal stone management.

How similar studies have gone: Prior real-world and observational work has explored steerable and suction-assisted ureteroscopy, indicating potential benefits but with heterogeneous results; this study aims to provide more standardized prospective data.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Candidate for ureteroscopy with laser lithotripsy or PCNL for the treatment of renal stones
* Be willing and able to return for and respond to all study-related follow up procedures
* Have been informed of the nature of the study and has provided informed consent using the IRB approved informed consent (ICF)

Exclusion Criteria:

* Untreated urinary tract infection at the time of the index procedure
* Visual evidence of infection at the time of the index procedure
* History of sepsis
* Significant comorbidities
* Bladder, ureteral or kidney abnormalities
* Pregnant individuals
* Unable to meet the treatment and follow up protocol requirements

Where it's running

  • University of Miami
    Miami, Florida, United States
    Recruiting
  • Wichita Urology Group
    Wichita, Kansas, United States
    Recruiting
  • University of Buffalo
    Cheektowaga, New York, United States
    Recruiting
  • Integrated Medical Professionals (IMP)
    New York, New York, United States
    Recruiting
  • Northwell Health
    New York, New York, United States
    Recruiting
  • Urology Specialists of the Carolinas (USOC)
    Charlotte, North Carolina, United States
    Recruiting
Show 4 more locations
  • The Urology Group
    Cincinnati, Ohio, United States
    Recruiting
  • Urology Specialists of South Dakota
    Sioux Falls, South Dakota, United States
    Recruiting
  • Urology Partners of North Texas
    Arlington, Texas, United States
    Recruiting
  • UT Southwestern Medical Center
    Dallas, Texas, United States
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.