5,000-Patient study to see which brain aneurysm devices work best
NCT ID NCT07175519
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study will follow 5,000 people who receive newer endovascular devices (like coils, stents, or flow diverters) to treat a brain aneurysm. Researchers want to see how often the aneurysm comes back and what factors, such as smoking, might play a role. The goal is to improve safety and long-term success of these treatments.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- endovascular devices (coils, stents, flow diverters, intrasaccular devices)
- What this could lead to
- If successful, this could help doctors choose the best device for each patient and reduce the chance of aneurysms coming back.
- What could go wrong
- This is an observational study, not a controlled trial, so it cannot prove one device is better than another. Results may take years and depend on many patient factors.
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.
- Participants
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About 5,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2025
- Expected to finish
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Jan 2035
An estimate. End dates often move.
- Lead sponsor
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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.
Who is studied
Patients with cerebral aneurysms treated with endovascular devices
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * All patients undergoing endovascular aneurysm treatment. Exclusion Criteria: * All endovascular patients NOT undergoing aneurysm treatment e.g. stents used for stroke treatment; devices and materials used for dAVF, AVM treatments. * Insufficient background data available e.g., to determine size of aneurysm and device.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Kings College Hospital, London
RECRUITINGLondon, United Kingdom
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