New stent graft aims to keep dialysis veins open longer

NCT ID NCT04540302

Completed Disease control Sponsor: Merit Medical Systems, Inc. Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a special stent graft (WRAPSODY) against the usual balloon treatment for vein blockages in people on dialysis. The goal was to see if the stent graft could keep the vein open longer and reduce the need for repeat procedures. A total of 357 patients took part across multiple centers.

What this could mean

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

Active substance: WRAPSODY Endovascular Stent Graft
What this could lead to: If successful, this stent graft could help dialysis patients keep their vein access open longer, reducing the need for repeat procedures.
What could go wrong: This is a completed study, but results may not apply to all patients. Stent grafts carry risks like clotting or infection, and the device may not outperform standard treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

congenital arteriovenous fistula vascular occlusion disorder

As listed by the trial registrant

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

VENOUS OCCLUSION VENOUS STENOSIS

Contacts and locations

Locations

Brigham and Women's Faulkner Hospital

West Roxbury, Massachusetts, 02130, United States
CDVA

Pasadena, Texas, 77504, United States
Charlotte Radiology

Charlotte, North Carolina, 28202, United States
Chicago Access Center

Chicago, Illinois, 60559, United States
Churchill Hospital

Oxford, OX3 7LE, United Kingdom
Cleveland Clinic

Cleveland, Ohio, 44195, United States
Coastal Vascular and Interventional

Pensacola, Florida, 32504, United States
Dallas Nephrology Associates

Plano, Texas, 75093, United States
Dorset County Hospital

Dorchester, United Kingdom
First Coast Cardiovascular Institute

Jacksonville, Florida, 32256, United States
Global Kidney Associates

Houston, Texas, 77008, United States
Hospital Universitário Pedro Ernesto

Rio de Janeiro, Brazil
Houston Methodist Hospital

Houston, Texas, 77030, United States
Indiana University Hospital and Methodist Hospital

Indianapolis, Indiana, 46202, United States
Instituto Dante Pazzanese de Cardiologia

São Paulo, Brazil
Instituto Santa Marta De Ensino E Pesquisa

Brasília, Brazil
King's Daughters Medical Center

Ashland, Kentucky, 41101, United States
Leesburg Vascular Access Center & Discovery Medical Research

Oscala, Florida, 34471, United States
Lister Hospital

Stevenage, SG1 4AB, United Kingdom
Michigan Vascular Access Center

Flint, Michigan, 48507, United States
NC Heart and Vascular Research

Raleigh, North Carolina, 27607, United States
Nephrology Associates

Newark, Delaware, 19713, United States
North Carolina Nephrology Raleigh Access

Raleigh, North Carolina, 27610, United States
Northwestern Medical Center

Chicago, Illinois, 60611, United States
Open Access Miami, LLC

Miami, Florida, 33169, United States
PPG Health PA, DBA-Tarrant Vascular

Fort Worth, Texas, 76104, United States
Pima Heart and Vascular

Tucson, Arizona, 85718, United States
Prisma Health System Upstate

Greenville, South Carolina, 29605, United States
Providence Access Center

Providence, Rhode Island, 02906, United States
Queen Elizabeth Hospital

Birmingham, B15 2TH, United Kingdom
Real Hospital Português de Beneficência em Pernambuco

Recife, Brazil
Renal Disease Research Institute

Dallas, Texas, 75235, United States
Royal London Hospital

London, E1 1FR, United Kingdom
Sentara Vascular Specialists

Virginia Beach, Virginia, 23507, United States
Soltero Cardiovascular Research Center

Dallas, Texas, 75226, United States
Southwest Kidney institute (SKI) Vascular Center

Tempe, Arizona, 85281, United States
St. Joseph Hospital

Orange, California, 92868, United States
Toronto General Hospital

Toronto, Canada
UNC Health

Chapel Hill, North Carolina, 27599, United States
University Pittsburg Medical Center

Pittsburgh, Pennsylvania, 15213, United States
University of Texas Health - Memorial Hermann Katy Hospital

Katy, Texas, 77494, United States
Vascular Care Connecticut

Darien, Connecticut, 06820, United States
Vascular Institute of Atlantic Medical Imaging

Vineland, New Jersey, 80360, United States

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