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Brain aneurysm showdown: which treatment is safer and cheaper?

NCT ID NCT01811134

Disease control Sponsor: Hospices Civils de Lyon 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compared two procedures for treating unruptured brain aneurysms: traditional coiling (using tiny coils to block blood flow) and a newer method using a flow diverter stent. 91 adults with specific types of aneurysms took part. The goal was to see which treatment works better, is safer, and costs less 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
PIPELINE flow diverter stent (device) and detachable coils with or without stent (device)
What this could lead to
If successful, this could show that the flow diverter stent is a safe and cost-effective alternative to traditional coiling for certain brain aneurysms.
What could go wrong
This is a completed trial with only 91 participants, so results may not apply to all patients. Both procedures carry risks like stroke 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

91 people

The number who actually took part.

Start date

Nov 2012

Finished

Mar 2020

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's age ≥ 18 years old * Unruptured saccular intracranial aneurysm diagnosed by angiography or CT angiography or MR angiography, located in the intra-dural area, with a neck diameter between 4 and 10 mm, with a sac diameter between 7 mm and 20 mm, with a ratio "dome/nek" greater than 1, and with a diameter of the parent artery between 2 and 5 mm. * No prior treatment of the aneurysm * Agreement for participating in the study and informed consent signed by the patient * Patient affiliated to a social security scheme Exclusion Criteria: * Patient's age \< 18 years old * Adult patient protected by law * Contraindications to the endovascular procedure * Contraindications to antiplatelet or anticoagulant treatment * Prior treatment of the aneurysm * Presence of an arteriovenous malformation * Extradural location of the aneurysm * Fusiform aneurysm * Active bacterial infection (clinical signs) * Intracranial hemorrhage from aneurysm in the previous month * Pregnant or breastfeeding woman

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Conditions

The condition(s) this trial relates to.

brain aneurysm intracranial berry aneurysm

As listed by the trial registrant

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

Intracranial aneurysm

Contacts and locations

Locations

  • Hospices Civils de Lyon

    Lyon, BRON, France

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