New device for dialysis access shows promise in 142 patients
NCT ID NCT04484220
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at how well the Ellipsys Vascular Access System works for creating arteriovenous (AV) fistulas in people with end-stage kidney disease who need dialysis. A total of 142 patients were followed for 12 months to see how long the access stayed open and how safe the procedure was. The goal was to provide a reliable way to connect an artery and vein for easier dialysis.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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142 people
The number who actually took part.
- Started
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Apr 2021
- Finished
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Mar 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 80 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Male or non-pregnant female ≥ 18 years of age and ≤ 80 years of age 2. Life expectancy of at least one year, in the investigator's opinion 3. Diagnosed with ESRD or chronic kidney disease on hemodialysis. 4. Patients deemed medically eligible for upper extremity autogenous AV fistula creation, per institutional guidelines and/or clinical judgment 5. Adequate quality vein based on pre-operative assessment 1. Adjacent vein diameter of ≥2.0 mm at target anastomosis site 2. Confirmed clinically significant outflow 6. Adequate quality radial artery based on pre-operative assessment a. Arterial lumen diameter of ≥2.0 mm at target anastomosis site 7. Adequate collateral arterial perfusion with patent palmar arch as demonstrated by Barbeau Test or Allen's Test. 8. Radial artery-adjacent vein proximity ≤1.5 mm measured lumen edge-to-lumen edge as determined by pre-procedural ultrasound and confirmed pre-procedure 9. Patient is able to provide written informed consent and attend follow-up examinations at the enrolling institution Imaging-based Inclusion Criteria: 10. Confirm radial artery-adjacent vein proximity ≤1.5 mm measured lumen edge-to-lumen edge as determined by pre-procedural ultrasound and confirmed pre-procedurally 11. Confirm radial artery and adjacent vein diameter of ≥2.0 mm at target anastomosis site Exclusion Criteria: 1. Pre-existing ipsilateral vascular disease interfering with the study procedure or potentially confounding the study results including: 1. Documented or suspected central venous stenosis (≥ 50%) or 2. Upper extremity arterial stenosis or 3. Vascular disease at the radial artery / adjacent vein site 2. Prior vascular surgery at or proximal (central) to the AVF target site interfering with AVF maturation or other ipsilateral surgery that could potentially confound the study results such as prior axillary dissection or mastectomy 3. History of steal syndrome from a previous surgical ipsilateral hemodialysis vascular access which required intervention or abandonment 4. Systolic pressures \< 100 mg Hg at the time of screening 5. Suspected or confirmed skin disease at the skin entry site 6. Edema of the upper extremity on the ipsilateral side 7. Immunocompromised subjects due to underlying disease or immunosuppressant therapy such as sirolimus (Rapamune®) or Prednisone at a dose of \> 10 mg per day 8. Known bleeding diathesis, coagulation disorder or medications putting the subject at increased risk, in the Investigator's judgment 9. Patients with acute or active infection 10. Scheduled kidney transplant within 6 months of enrollment 11. Participation in another clinical investigation (excluding retrospective studies or studies not requiring a consent form) 12. History of substance abuse or anticipated to be non-compliant with medical care or study requirements based on investigator judgment 13. Patient has an active COVID-19 infection with ongoing sequela or hospitalization for treatment of COVID-19.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Azura Vascular Care, Jacksonville
Jacksonville, Florida, 32218, United States
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Coastal Vascular and Interventional, PLLC
Pensacola, Florida, 32504, United States
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Nephrology Associates Access Center
Riverside, California, 92501, United States
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Nephrology Kidney Disease Hypertension Center
Las Vegas, Nevada, 89128, United States
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Richmond Vascular Center
North Chesterfield, Virginia, 23236, United States
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Rush University Medical Center
Chicago, Illinois, 60607, United States
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STAR Vascular Access Center
San Antonio, Texas, 78207, United States
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San Antonio Kidney Disease Center
San Antonio, Texas, 78216, United States
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Staten Island Hospital
Staten Island, New York, 10305, United States
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The Vascular Care Group
Hyannis, Massachusetts, 022601, United States
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University of Pittsburg Medical Center
Pittsburgh, Pennsylvania, 15213, United States
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Yale University
New Haven, Connecticut, 06510, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Blood test could unlock hidden clues to dialysis quality
- Could the type of anesthesia affect kidney transplant success?
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