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New laser may speed up kidney stone removal

NCT ID NCT04997668

Symptom relief Sponsor: University of Kansas Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compared two FDA-approved lasers used to break up kidney stones during surgery: the newer SOLTIVE Thulium Fiber Laser and the standard Ho:YAG laser. About 100 adults with a single stone smaller than 2 cm took part. Researchers measured how well each laser cleared stones, how long surgery took, and how satisfied surgeons were.

What this could mean

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

Active substance
SOLTIVE Thulium Fiber Laser (device) compared to Ho:YAG laser (device)
What this could lead to
If SOLTIVE works better, it could make kidney stone surgery faster and more efficient, with similar success rates.
What could go wrong
This is a small, completed trial with only 100 participants. The new laser may not be significantly better than the standard one.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

100 people

The number who actually took part.

Started

Sep 2022

Finished

Mar 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patients must be 18 years of age or older 2. Patients must be diagnosed with single stone burden \<2.0 cm 3. Patients must opt for definitive treatment with ureteroscopy with lase lithotripsy and stone basket extraction Exclusion Criteria: 1. Patients with multiple stones or stones bilaterally 2. Patient with stones \>2.0cm 3. Patient who wish to continue with trial of passage

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Conditions

The condition(s) this trial relates to.

Kidney Calculi nephrolithiasis urolithiasis

As listed by the trial registrant

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

Kidney stone

Contacts and locations

Locations

  • University of Kansas Medical Center

    Kansas City, Kansas, 66160, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.