Noninferiority Randomized Clinical Trial: KIM Sling With Reusable Trocars Versus TVT Exact Sling

Area of Science:

• Urology
• Gynecology
• Medical Devices

Background:

• Stress urinary incontinence (SUI) affects many women, with midurethral slings being a common treatment.
• The Neomedic Knotless Incontinence Mesh (KIM) sling offers potential environmental benefits due to sterilizable trocars.
• Comparative data on the efficacy of the KIM sling versus established slings are limited.

Purpose of the Study:

• To compare the efficacy of the retropubic KIM sling with the Gynecare TVT Exact sling in women with SUI.
• To determine if the KIM sling is noninferior to the TVT Exact sling based on subjective success at six weeks.

Main Methods:

• A single-center, randomized noninferiority trial was conducted.
• 147 women with SUI were randomized to either the KIM sling or the TVT Exact sling.
• Primary outcome was subjective success at 6 weeks, defined by a composite score and no SUI retreatment.

Main Results:

• Subjective success rates at 6 weeks were 68.5% for the KIM sling and 83.3% for the TVT Exact sling.
• The KIM sling did not meet the noninferiority margin compared to the TVT Exact sling (risk difference 14.8%).
• No significant differences were observed in secondary outcomes, including urinary retention and mesh complications.

Conclusions:

• The retropubic KIM sling is not noninferior to the TVT Exact sling for treating SUI at six weeks.
• The clinical trial is ongoing to evaluate longer-term outcomes at six months and one year.
• The study highlights the need for further comparative data on novel incontinence mesh devices.