Clinical trial Recruiting at 15 sites Observational Ages 18 and up

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.

More Venous Stenosis trials

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment250 (estimated)
SponsorMerit Medical Systems, Inc.
Industry-sponsored
Locations16 sites (Dothan, Alabama and 15 other locations)
StatusRecruiting
StartedJuly 31, 2025
Main results expectedDecember 2027
Study endsJuly 2030
Registry record updatedAugust 26, 2026
Trial IDNCT06807099 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

  • 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
  • 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.