WRAP North America: use of the WRAPSODY endoprosthesis for dialysis access outflow blockages
Official title: Prospective, Multicenter, Observational Study to Evaluate the Merit WRAPSODY® Cell Impermeable Endoprosthesis for Treatment of Stenosis or Occlusion Within the Dialysis Outflow Circuit (WRAP North America)
Run by Merit Medical Systems, Inc. · NCT06807099 · Data updated 2026-11-12
This study will test the WRAPSODY device in adults on chronic hemodialysis who have venous stenosis or occlusion in their dialysis outflow to see if it is safe and keeps access working.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 250 (estimated) |
| Sponsor | Merit Medical Systems, Inc. Industry-sponsored |
| Locations | 16 sites (Dothan, Alabama and 15 other locations) |
| Status | Recruiting |
| Started | July 31, 2025 |
| Main results expected | December 2027 |
| Study ends | July 2030 |
| Registry record updated | August 26, 2026 |
| Trial ID | NCT06807099 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18 years) on chronic hemodialysis with a mature arteriovenous fistula or graft that has been used for dialysis and who have stenosis or occlusion in the outflow circuit treated with WRAPSODY per the device instructions are the intended participants.
✕Probably not a fit
Patients with planned surgical revision of the access, active local or systemic infection, uncorrectable coagulation disorders, or known nickel or titanium hypersensitivity, as well as those who are not candidates for an endoprosthesis, are unlikely to benefit from this device.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This prospective, multicenter, observational registry follows adult hemodialysis patients treated with the Merit WRAPSODY® Cell Impermeable Endoprosthesis for stenosis or occlusion in the dialysis outflow circuit. Enrolled participants receive the device per the instructions for use and are followed according to each site's standard of care for up to three years. The study collects safety data, patency outcomes, and need for reintervention in a real-world North American population. No experimental interventions beyond standard device use and routine follow-up are required.
Why it matters
Potential benefit: If successful, the WRAPSODY device could help keep dialysis access functioning longer and reduce the need for repeat procedures.
How similar studies have gone: Covered stent-graft devices similar to WRAPSODY have shown improved access patency in prior studies and WRAPSODY has been evaluated before, but large-scale, real-world North American outcome data are still limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Subject provides written informed consent for study participation. 2. Subject is male or female, with an age ≥ 18 years at date of enrollment. 3. Subject is willing to comply with site standard of care procedures and follow-up visit schedules over 36 months. 4. Subject is undergoing chronic hemodialysis with the hemodialysis access the intervention will be performed upon. 5. The dialysis access is considered mature and has been used to deliver hemodialysis treatments for at least one session. 6. Subject has stenosis or occlusion within the dialysis outflow circuit and is treated with WRAPSODY CIE in accordance with device instructions for use. Exclusion Criteria: 1. Subject has a planned surgical revision of access site. 2. Subject has a known or suspected infection of the hemodialysis access site, systemic infection and/or septicemia. 3. Subject has an uncorrectable coagulation disorder. 4. Known hypersensitivity to nickel or titanium. 5. Subject's hemodialysis access is anticipated to be abandoned within 6 months. 6. Subject is scheduled for kidney transplant or peritoneal dialysis within the next 6 months post-procedure. 7. Full expansion of a PTA balloon cannot be achieved during predilatation. 8. Device would be placed in the Superior Vena Cava 9. Any inflow or outflow lesion that could jeopardize patency access long-term beyond the target treatment area.
Where it's running
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Trinity Research Group
Dothan, Alabama, United States Recruiting -
AKDHC Phoenix Surgery Center
Phoenix, Arizona, United States Recruiting -
Apex Research of Riverside
Riverside, California, United States Recruiting -
American Access Care of Jacksonville
Jacksonville, Florida, United States Recruiting -
Sarasota Memorial Research Institute
Sarasota, Florida, United States Recruiting -
University of Kentucky
Lexington, Kentucky, United States Recruiting
Show 10 more locations
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American Access Care of Rhode Island
Providence, Rhode Island, United States Recruiting -
Medical University of South Carolina
Charleston, South Carolina, United States Recruiting -
Medical University of South Carolina
Orangeburg, South Carolina, United States Recruiting -
Spartanburg Medical System
Spartanburg, South Carolina, United States Recruiting -
Texas Research Institute
Fort Worth, Texas, United States Recruiting -
Humble Vascular Surgical Center
Humble, Texas, United States Recruiting -
Sentara Vascular Specialists
Virginia Beach, Virginia, United States Recruiting -
University Health Network
Toronto, Ontario, Canada Recruiting -
Centre Hospitalier de l'Université de Montréal
Montreal, Quebec, Canada Recruiting -
Bluff City Vascular
Memphis, Tennessee, United States Active not recruiting
Study contacts
- Study coordinator: Irene Coughlin
- Email: irene.coughlin@merit.com
- Phone: +1-385-766-9133
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.