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Study identifier: NCT07697677 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Modified Mini-PCNL Versus Standard PCNL for Complex Kidney Stones

Condition: Kidney Stones · Complex Renal Calculi  ·  Sponsor: The First Affiliated Hospital of Guangzhou Medical University

PhaseNA
Planned participants1380
Who can joinAll sexes, 18 Years to 70 Years
Healthy volunteersNo

About this study

Kidney stones that are large or complex are often treated with percutaneous nephrolithotomy, also called PCNL. Standard PCNL uses a larger access tract and is effective for removing complex kidney stones, but it may be associated with more bleeding, pain, and recovery burden. Modified mini-PCNL uses a smaller access tract and may reduce surgical trauma while maintaining a similar stone clearance rate. This multicenter randomized trial will compare modified mini-PCNL using a 20 Fr access sheath with standard PCNL using a 24 Fr access sheath in adults with complex renal stones. About 1,380 participants from 8 urology centers will be randomly assigned to receive one of the two procedures. The main purpose of the study is to determine whether modified mini-PCNL is not worse than standard PCNL in achieving stone-free status shortly after surgery. Stone-free status will be assessed by low-dose noncontrast CT within 72 hours after surgery. The study will also compare stone-free status at 3 months, complications, operation time, length of hospital stay, need for additional procedures, and quality of life.

This description comes directly from the study's public registry record.

Talk to the study team

Yongda Liu, Doctor  ·  +020-83062923  ·  13719007083@163.com

Always discuss trial participation with your own doctor first.

Locations (1)

The First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou, Guangdong, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT07697677