New laser may zap kidney stones faster and safer
NCT ID NCT06667557
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This study compares two types of lasers used to break up kidney stones during a minimally invasive procedure called ureteroscopy. One laser uses a superpulse thulium fiber (sTFL), the other is a standard holmium laser. Researchers will enroll 136 adults aged 18–70 with kidney stones 6–20 mm in size. The main goal is to see which laser clears more stones after 3 months, and which causes fewer complications or shorter surgery times.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Superpulse thulium fiber laser (sTFL) and holmium:YAG laser (Ho:YAG) — both used as surgical devices to break up kidney stones during ureteroscopy.
- What this could lead to
- If sTFL proves better, it could become the preferred laser for kidney stone surgery, offering higher stone clearance and fewer complications.
- What could go wrong
- This is a relatively small trial (136 people) comparing two established techniques. Even if sTFL shows advantages, the difference may be modest and not change practice widely.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Shanghai General Hospital
RECRUITINGShanghai, Shanghai Municipality, 201620, China
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