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Dialysis fistula fix? study pulled before it began

NCT ID NCT03365089

Disease control Sponsor: Massachusetts General Hospital 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 aimed to see if tying off extra veins (collaterals) could help dialysis fistulas mature so they can be used for treatment. It planned to enroll patients whose fistulas were not developing properly. However, the trial was withdrawn before any participants were enrolled, so no conclusions can be drawn.

What this could mean

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

Active substance
collateral vein ligation (a procedure to tie off extra veins near the fistula)
What this could lead to
If it had worked, this could have pointed to a simple way to help more dialysis fistulas become usable, reducing the need for additional procedures.
What could go wrong
The trial was withdrawn before any patients were enrolled, so we have no data on whether the procedure is effective or safe. It remains an unproven idea.

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.

Started

May 2018

Expected to finish

Mar 2020

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: \- Patients with upper extremity autogenous AVF presenting with FTM with evidence of collaterals on ultrasound and/or clinical exam. Exclusion criteria: * Age under 18 years * Pregnant women * Prior endovascular or surgical procedure in the fistula after its creation (with the exception of surgical superficialization or mobilization) * Clinical evidence of infection associated with the AVF * Uncorrectable coagulopathy (International Normalized Radio \>2.5, platelet count \<50.000/μL) * Absence of significant venous side branches on angiogram (defined as those that arise in the initial 10 cm, including the future cannulation zone, and have maximal diameter greater than or equal to one third of the widest diameter of the fistula's main venous channel in this segment).

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As listed by the trial registrant

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

Hemodialysis access failure

Contacts and locations

Locations

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

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