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New wrist surgery could make dialysis easier for kidney patients

NCT ID NCT02728817

Disease control Sponsor: Centre Hospitalier Universitaire de Nice Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Summary

This study tests a new surgical method called RADAR for creating blood vessel connections needed for dialysis in 200 people with end-stage kidney disease. The goal is to see if this technique leads to fewer blockages and better long-term function compared to the standard approach. Participants are randomly assigned to receive either the RADAR or traditional fistula surgery, and their outcomes are tracked over time.

What this could mean

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

Active substance
surgical procedure (RADAR technique vs. traditional fistula creation)
What this could lead to
If successful, this technique could improve fistula maturation and reduce complications, making dialysis access more reliable for kidney patients.
What could go wrong
This is a relatively small, early-stage trial comparing surgical methods, so results may not apply to all patients. The new technique also carries standard surgical risks like infection or bleeding.

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

Study facts

What this study's own registry entry says, in plain language.

Phase

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

200 people

The number who actually took part.

Started

Apr 2017

Expected to finish

Sep 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patient referred by the nephrologist for the creation of a primary vascular access * Clinical examination of both upper limbs showing on the same limb: * A cephalic vein at the distal third of the forearm * Radial pulse * Ulnar pulse * Positive Allen test (patent palmar arches) * Preoperative arterial and venous duplex ultrasound examination of both limbs showing on the same limb : * A patent cephalic vein, ≥2mm in diameter at the distal 1/3 of the forearm, free from stenosis, ≥15cm in length * A patent on dominant radial artery, ≥2mm in diameter at the distal 1/3 of the forearm, free from stenosis and major calcifications * A patent ulnar artery, free from stenosis and major calcifications * A positive Allen's test with assessment of the retrograde flow (patent palmar aches) * Digital pressure \>50mmHg when occlusive compression is made on the radial artery and digital/brachial ratio \>0.5 Exclusion Criteria: * patient under guardianship

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Conditions

The condition(s) this trial relates to.

chronic kidney disease congenital arteriovenous fistula Constriction, Pathologic end stage renal failure

As listed by the trial registrant

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

End-stage renal disease

Contacts and locations

Locations

  • Aphm

    Marseille, France

  • CHU de Nice - Service de chirurgie vasculaire

    Nice, France

  • Polyclinique Les Fleurs

    Ollioules, France

  • Polyclinique Notre Dame

    Draguignan, France

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