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Dialysis dilemma: catheter or fistula for the elderly?

NCT ID NCT07649083

Disease control Sponsor: Medical University of Vienna 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study compares two common ways to access the blood for dialysis: a tunneled catheter (a tube placed in a large vein) versus a surgically created fistula (connecting an artery to a vein). The trial will enroll 220 patients aged 60 or older (or younger but with multiple health problems) who need to start dialysis. Researchers will track complications like infection, blockage, or loss of access, as well as quality of life, over one year.

What this could mean

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

Active substance
tunneled cuffed dialysis catheter
What this could lead to
If catheters prove safer and more effective, this could change standard practice for elderly or sick patients needing dialysis access.
What could go wrong
This is a single-center trial with 220 patients, so results may not apply broadly. Catheters still carry infection risks despite improvements.

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

About 220 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Dec 2030

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 to 99 years

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: * Aged ≥60 years or \<60 years with a CCI Score \>6 * Patients with CKD G5 A1-3 with indication for hemodialysis * Stable clinical condition * Eligibility for both arteriovenous fistula on the upper extremities and TCC * Availability for follow-up * Written informed consent Exclusion Criteria: * Uncontrolled infection and/or CRP \>5 mg/dl (normal \<0.5 mg/dl) at screening * Poor overall health or malignancy not in remission at screening * Major surgery within 12 weeks before screening * Pre-existent vascular access * Patient not eligible for any one of the vascular access options * Endovascular arteriovenous fistula

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Conditions

The condition(s) this trial relates to.

chronic renal failure syndrome congenital arteriovenous fistula dialysis disequilibrium syndrome end stage renal failure

As listed by the trial registrant

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

End stage renal failure, hemodialysis Fistulas arteriovenous Haemodialysis complication Haemodialysis patients Vascular access

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

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