No clamp, no stitch: new kidney surgery aims to save more function

NCT ID NCT07141225

Recruiting now Disease control Sponsor: Shao Pengfei Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests a new surgical technique for removing small kidney tumors (up to 7 cm) using a robot. Instead of clamping the kidney's blood supply and stitching the wound closed, surgeons avoid clamping and use heat and special materials to stop bleeding. The goal is to preserve as much healthy kidney tissue as possible. The trial will enroll 190 adults and measure kidney function after surgery, along with complications and blood loss.

What this could mean

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

Active substance: Off-Clamp Sutureless Technique (procedure)
What this could lead to: If successful, this technique could become a standard option for kidney cancer surgery, helping more patients preserve kidney function without increasing risks.
What could go wrong: This is a single-center study with no control group, so results may not apply broadly. The technique is still being tested for larger or more complex tumors, and bleeding or urine leaks remain possible risks.

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Conditions

The condition(s) this trial relates to.

kidney cancer renal carcinoma renal cell carcinoma urinary system disorder

As listed by the trial registrant

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

RENAL AND URINARY DISORDERS RENAL CANCER RENAL PARTICIAL

Contacts and locations

Locations

The First Affiliated Hospital of Nanjing Medical University (Jiangsu Provincial People's Hospital)
RECRUITING

Nanjing, Jiangsu, 210036, China

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