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Which embolic agent works best for brain bleeding? a trial aims to find out

NCT ID NCT07757113

Disease control Sponsor: Sanford Health 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 11, 2026 · Last updated Aug 12, 2026 · Updated 1 time

Summary

This trial compares three different embolic materials—particles, liquid embolics, and coils—used during a procedure called middle meningeal artery embolization to treat chronic subdural hematoma, a type of bleeding on the brain's surface. The study will enroll 30 adults undergoing this procedure and measure changes in hematoma size, complications, and recurrence rates. The goal is to see if one material is safer or more effective than the others.

What this could mean

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

Active substance
Embolic agents (particles, liquid embolics, or coils) used during middle meningeal artery embolization
What this could lead to
If successful, this could identify the best embolic material to reduce hematoma size and lower recurrence rates, improving outcomes for people with chronic subdural hematoma.
What could go wrong
This is a small pilot study, so results may not be definitive. The three materials may show similar outcomes, and individual risks like bleeding or complications vary.

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 30 people

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

Expected to start

Sep 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 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: * Adult patients (≥ 18 years) * Undergoing Middle Meningeal Artery Embolization (MMAE) for chronic subdural hematoma (cSDH) * Able to provide informed consent or have a legally authorized representative (LAR) do so Exclusion Criteria: * Ineligible for MMAE procedure, as deemed by the treating physician, for any indication (e.g. pregnancy) * Non-chronic subdural hematoma (cSDH) indications for Middle Meningeal Artery Embolization (MMAE), including acute subdural hematoma with symptom onset \< 72 hours or mixed acute/chronic without predominant chronic features * Pregnancy or breastfeeding * Known severe allergy or contraindication to embolic materials (e.g. particles, liquids like Onyx/n-BCA, or coils) * Inability to undergo angiography (e.g. severe renal impairment contraindicating contrast) * Inability or unwillingness to complete follow-up visits at 30 and 90 days

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Conditions

The condition(s) this trial relates to.

Hematoma, Subdural, Chronic stroke disorder

As listed by the trial registrant

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

Chronic subdural hematoma Middle meningeal artery embolization Stroke

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

  • Sanford USD Medical Center

    Sioux Falls, South Dakota, 57105, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.