Thulium Fiber Laser (TFL) vs Thulio Pulsed Thulium:YAG (p-Tm:YAG)

Recruiting now · Not applicable

Conditions studied: Kidney Stones, Nephrolithiasis

In brief

This research study is being conducted to assess the ability and efficiency of two laser systems to break up kidney stones during ureteroscopy with laser lithotripsy for kidney stone treatment.

Key facts

Study ID

NCT06721975

Run by

University of California, San Diego

People needed

50

Starts

2024-08-01

Expected to finish

2026-12-31

Last updated by the study team

2026-07-09

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Solitary renal stone 7 to 20 mm in size or in the case of multiple stones the conglomerate diameter (additive maximal diameter of all stones on axial imaging of computed tomography) of 7-20 mm is required
• Must be a suitable operative candidate for flexible ureteroscopy per American Urological Association guidelines
• Must be able to give consent
• Bilateral ureteroscopy will be permitted but only the first side (per surgeon discretion) will be included in the study
• Surgeons participating in the study must be urological attending surgeons or fellows with subspecialty training in Endourology

You may not qualify if…

• Concomitant stones in the ureter
• Prior ipsilateral upper urinary tract reconstructive procedures or history of ipsilateral ureteral stricture
• Prior radiotherapy to the abdomen or pelvis
• Neurogenic bladder or spinal cord injury
• Pregnancy
• Untreated UTI

Where it is running

• University of California, San Diego — San Diego, California, United States (enrolling)

Full record on ClinicalTrials.gov

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