Merit Medical Releases 24-Month Efficacy Results from the Single-Arm Arteriovenous Graft (AVG) Cohort of the WRAPSODY Arteriovenous Access Efficacy (WAVE) Trial

At 24 months, the target lesion primary patency (TLPP)1 was 41.7%At 24 months, the access circuit primary patency (ACPP)2 was 25.7%

SOUTH JORDAN, Utah, Nov. 03, 2025 (GLOBE NEWSWIRE) -- Merit Medical Systems, Inc. (NASDAQ: MMSI), a global leader of healthcare technology, today announced 24-month efficacy findings from the non-randomized AVG cohort of the WAVE trial. Results of the AVG cohort were presented during the Late-Breaking Clinical Trials session at the annual VIVA Foundation3 Venous Endovascular Interventional Strategies (VEINS) conference held in Las Vegas, NV.

For the millions of patients diagnosed with advanced kidney disease, hemodialysis is a life-saving treatment that replaces the function of the kidneys. The administration of hemodialysis requires ongoing vascular access (access to blood vessels) that is commonly achieved through the surgical creation of an AVG in a central or peripheral vein. However, complications, such as stenosis (narrowing) or occlusion (blockage), in the patient veins required for vascular access are common. The WRAPSODY® Cell-Impermeable Endoprosthesis (CIE) is intended to help physicians restore vascular access in patients on hemodialysis who experience these complications.

The WAVE trial was designed to capture the performance of the WRAPSODY CIE. TLPP and ACPP outcomes were used to evaluate the ability of the device to restore functional vascular access in trial patients. Forty-three centers across the United States, South America, and the United Kingdom participated in the trial.

In the non-randomized arm of the WAVE trial, 112 patients with a stenosis or occlusion in their AVG were treated with the WRAPSODY CIE. The TLPP at 6 months was compared to historical outcomes (i.e., performance goals) and then documented over 24 months. The TLPP at 6 months exceeded the established performance goal (81.4% vs. 60%; p