ClinicalTrials.gg
CompletedNCT03916731Updated Oct 2, 2024

Evaluation of STARgraft AV for Hemodialysis Access

An interventional study of STARgraft AV and ePTFE AV graft (control) in End Stage Renal Disease, sponsored by Healionics Corporation. Completed at 1 site in Paraguay. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-10-02.

Sponsored by Healionics Corporation · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Oct 2020, 6 years ago, and no results have been posted to the registry; the sponsor requested a delay in submitting them in Oct 2021.
Phase
Not applicable
Study type
Interventional
Enrollment
55
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is a First-in-Human, single site, prospective, randomized, controlled evaluation of the safety and effectiveness of the Healionics STARgraft AV hemodialysis access graft. The STARgraft has been demonstrated in preclinical studies to have improved resistance to the common failure mode of venous anastomosis stenosis.

Performance of the STARgraft AV will be compared against control implants of commercially available standard ePTFE grafts approved for the same use.

The study is enrolling patients with End Stage Renal Disease (ESRD) requiring hemodialysis via a prosthetic vascular graft. The study proposes to:

  1. Demonstrate improved primary patency of the investigational STARgraft AV compared to the ePTFE controls over a period of 6 months, with extended results to 1 year.
  2. Verify safety of the STARgraft AV multilayer construction in extended vascular access use.

It is intended to enroll 25 subjects each for the investigational devices and the controls respectively (50 total) with randomized device allocation at subject presentation for implant surgery.

02

Conditions studied

  • End Stage Renal Disease

Keywords

  • Hemodialysis
  • Vascular Access
  • Arterio-Venous Grafts (AVG)
03

In context

Kidney Failure, Chronic

2,108 studies on the registry are indexed under Kidney Failure, Chronic; 273 are open to participants now.

This study's enrollment of 55 is close to the median of 57 across 1,569 interventional studies indexed under Kidney Failure, Chronic.

Browse Kidney Failure, Chronic studies →

Lead sponsor

Healionics Corporation is the lead sponsor of 5 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male or female, > 18 years or age.
  2. Patient has given to participate in the trial.
  3. Stated willingness to comply with all study procedures and availability for the duration of the study.
  4. Able to effectively communicate with study personnel.
  5. Candidate for a new arterio-venous graft placed in the upper arm.
  6. judged to be at least 2 years.
  7. Axillary vein of greater than or equal to 7 mm in diameter.
  8. Brachial artery of greater than or equal to 4 mm in diameter.
  9. Systolic blood pressure equal to or greater than 120 mmHg.
  10. Absence of central venous stenosis downstream from implant site confirmed with ultrasound and/or angiogram.

Exclusion criteria

Exclusion Criteria:

  1. Unable or unlikely to comply with trial protocol and/or follow-up.
  2. Pregnancy.
  3. Clinical morbid obesity.
  4. Anatomical limitations.
  5. Immunodeficiency syndrome.
  6. History of bacterial infection within 8 weeks prior to graft implantation.
  7. History of hypercoagulation or bleeding disorders.
  8. Elevated count > 1 million per microliter of blood.
  9. History of heparin-induced thrombocytopenia syndrome (HIT).
  10. Medically confirmed stenosis of the veins downstream of the implant site.
  11. Inadequate arterial flow or pressure proximal to the implant site.
  12. Currently participating in another investigation drug or device study which may clinically interfere with any endpoints of this trial.
  13. Fever greater than 38° C.
  14. Prior allergic reaction to silicone.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
55 participants (actual)

Study arms

  • Experimental
    STARgraft AV

    Participants will be implanted with 6mm diameter STARgraft AV grafts as an upper arm Brachial Artery to Axillary Vein shunt for hemodialysis access.

    Device: STARgraft AV

  • Active comparator
    Control (ePTFE)

    Participants will be implanted in the same upper arm location with standard 6mm diameter ePTFE dialysis access grafts. All other aspects of this study arm are identical to the Experimental one.

    Device: ePTFE AV graft (control)

Interventions

  • DeviceSTARgraft AV

    Implant of STARgraft AV shunt in the upper arm and subsequent use for hemodialysis access. After healing from the surgical procedure the graft will be routinely cannulated for hemodialysis sessions. Periodic evaluations of blood flow by ultrasound imaging will be made over the study period. Established standards of care will be followed as needed to maintain dialysis function.

  • DeviceePTFE AV graft (control)

    Implant of standard ePTFE AV shunt as a control in the upper arm and subsequent use for hemodialysis access. After healing from the surgical procedure the graft will be routinely cannulated for hemodialysis sessions. Periodic evaluations of blood flow by ultrasound imaging will be made over the study period. Established standards of care will be followed as needed to maintain dialysis function.

06

What researchers measure

Primary outcomes

  1. Primary Unassisted Patency

    Percentage of subjects without an occurrence of either an access thrombosis or an access procedure performed to maintain patency.

    Time frame: 12 months post implantation.

Secondary outcomes

  1. Primary Unassisted Patency

    Percentage of subjects without an occurrence of either an access thrombosis or an access procedure performed to maintain patency.

    Time frame: 1, 2, 4, 9 and 12 months post implantation

  2. Assisted Primary Patency

    Percentage of subjects retaining patency after one or more interventions so long as patency was not lost at any point.

    Time frame: 1, 2, 4, 6, 9 and 12 months post implantation

  3. Secondary Patency (Cumulative Patency)

    Percentage of subjects without loss of access at the original implant site.

    Time frame: 1, 2, 4, 6, 9 and 12 months post implantation

  4. Graft Related Infections

    Frequency of infections related to graft placement and use for dialysis access.

    Time frame: 1, 2, 4, 6, 9 and 12 months post implantation

  5. Safety Outcomes

    Frequency and Severity of Adverse Events resulting from graft implantation and use for hemodialysis access.

    Time frame: 1, 2, 4, 6, 9 and 12 months post implantation

Other outcomes

  1. Blood flow rates in grafts.

    Ultrasound measurements of flow rates (ml/minute) to detect patency trends with time after implantation

    Time frame: 2 weeks and 1, 2, 4, 6, 9, 12 months post implantation.

  2. Peak Systolic Velocity (PSV) Ratio

    Ultrasound measurement of PSV (The ratio of flow velocity at the venous anastomosis to that at a point 2cm upstream in the graft)

    Time frame: 2 weeks and 1, 2, 4, 6, 9, 12 months post implantation

07

Study locations

1 site
  • Italian Hospital
    Asunción, Paraguay
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Apr 2019 to primary completion in Oct 2020, 18 months.

Of 78 industry-sponsored interventional studies with no phase under Kidney Failure, Chronic, half reached primary completion within 18 months of starting (the median), counting those still running; a quarter within 8 and three quarters within 40. This study's 18 months is close to that.

Counting every sponsor, half of 425 studies reached it within 23 months; a quarter within 8 and three quarters within 46.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 8, 2019
First posted
Apr 16, 2019
StartActual
Apr 2, 2019
Primary completionActual
Oct 17, 2020
CompletionActual
May 11, 2021
Results delay requested
Oct 6, 2021
Last update
Oct 2, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 2, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03916731
Lead sponsor
Healionics Corporation
Responsible party
Sponsor
First posted
Apr 16, 2019
Start date
Apr 2, 2019
Primary completion
Oct 17, 2020
Completion
May 11, 2021
Last update
Oct 2, 2024

Study contacts

Adrian Ebner, MD
principal investigator · Italian Hospital Asuncion Paraguay

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.

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