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Can less dye give clear brain images?

NCT ID NCT07302646

Knowledge-focused Sponsor: University Hospital, Strasbourg, France 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether using less contrast dye during brain scans for unruptured aneurysms can still produce clear images. About 244 adults will be randomly assigned to receive either the standard dye amount or a reduced amount. The goal is to find a safer, more comfortable way to perform these scans without losing image quality.

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 244 people

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

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Mar 2028

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 80 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: Adult participant at the time of consent (age between 18 and 80 years old); Scheduled diagnostic cerebral angiography as part of routine care: * Initial assessment of the IA (suspected or detected in non-invasive imaging); * Follow-up of one or more IAs (treated or untreated); * Conscious and oriented participant, able to undergo the procedure under simple local anaesthesia; * Participant able to understand the objectives of the research and provide a dated, signed informed consent form; * Participant able to answer oral or written questions (French-speaking or understanding French); * For women of childbearing potential: negative serum β-HCG test at the inclusion visit; * Participant covered by a social security health insurance plan. Exclusion Criteria: * Emergency cerebral angiography; * Participants with other neurovascular conditions (AVM, AVF, etc.) in addition to an IA; * Participants with any contraindication to the use of ICM; * Pregnancy or breastfeeding; * Participants whose physical or psychological condition requires sedation or general anaesthesia for the procedure; * Participants with communication or cognitive disorders; Incapable participants (subject to legal protection measures: curatorship, guardianship, judicial protection, future protection mandate, family authorization).

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Conditions

The condition(s) this trial relates to.

brain aneurysm

As listed by the trial registrant

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

Interventional neuroradiology

How to take part

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

  1. The places running it

    1 site. The list below names each one and where it is.

  2. 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 ↗

  3. 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.

Contacts and locations

Locations

  • Imagerie Interventionnelle Vasculaire Hôpitaux Universitaires de Strasbourg 1, place de l'Hôpital, 67 091 STRASBOURG Cedex

    Strasbourg, France

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