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RecruitingNCT04574843Updated May 19, 2023

Middle Meningeal Artery Embolization With Liquid Embolic Agent for Treatment of Chronic Subdural Hematoma

An interventional study of Embolization of MMA in Chronic Subdural Hematoma, sponsored by Mashhad University of Medical Sciences. Recruiting at 1 site in Iran, Islamic Republic of. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-05-19.

Sponsored by Mashhad University of Medical Sciences · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2023, 2 years 10 months ago, but the record still lists the study as recruiting.
  • Started Aug 2020; still recruiting 6 years 3 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The study evaluates the clinical and imaging outcome of middle meningeal artery (MMA) embolization with liquid embolic agent for treatment of chronic subdural hematoma (CSDH)

Read the detailed description

This study is a prospective one arm trial designed to assess the safety and efficacy of MMA embolization with liquid embolic agents (onyx/squid/Phil) as the main treatment of CSDH.

The subjects are enrolled in the study according to inclusion and exclusion criteria. Imaging and clinical presentations of patients are recorded. Within 48 hours of embolization, patients are assessed with clinical examination and with a brain CT scan to evaluate in any change in their symptoms and CSDH volume. 2-4 weeks after embolization, patients are evaluated in clinic for any change in their symptoms and signs. 60 days after embolization patients are examined clinically and are assessed for SDH volume change in CT scan and MRI.

If there is any significant increase in CSDH volume or any deterioration of patient, evacuation of hematoma is considered.

MMA embolization is performed under general anesthesia using biplane or monoplane angiography. Femoral or radial accesses are used. Guiding catheter is advanced into external carotid artery in corresponding side. The corresponding MMA is catheterized distally by micro-catheter and is embolized by liquid embolic agents. Patients are discharge next day if they are stable.

02

Conditions studied

  • Chronic Subdural Hematoma

Keywords

  • chronic subdural hematoma
  • embolization
  • middle meningeal artery
  • liquid embolic agent
03

In context

Hematoma, Subdural, Chronic

112 studies on the registry are indexed under Hematoma, Subdural, Chronic; 49 are open to participants now.

This study's planned enrollment of 100 is below the median of 185 across 86 interventional studies indexed under Hematoma, Subdural, Chronic.

Browse Hematoma, Subdural, Chronic studies →

Lead sponsor

Mashhad University of Medical Sciences is the lead sponsor of 92 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. patients diagnosed chronic or subacute subdural hematoma
  2. Patients had symptoms/signs associated with chronic or subacute subdural hematoma: severe headache, hemiparesis/monoparesis, dementia, aphasia/dysphasia, loss of consciousness, ...
  3. Asymptomatic large chronic/subacute hematoma after 6-8 weeks of failed conservative treatment

Exclusion criteria

Exclusion Criteria:

  1. presentation with coma (GCS =\< 8)
  2. patients needs emergent evacuation of hematoma,
  3. patients could not participate in 60 days follow-up
  4. pregnant patients
  5. acute subdural hematoma
  6. to contrast
  7. contradiction to angiography
  8. difficult access to MMA due to anatomical variation
  9. contraindication to liquid embolic agent
  10. unmanaged/uncontrollable bleeding disorders
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    Embolization arm

    Intervention: Embolization of middle meningeal artery Device: Onyx, squid, Phil

    Procedure: Embolization of MMA

Interventions

  • ProcedureEmbolization of MMA

    embolization of MMA with one of following liquid embolic agents (Onyx-Squid-Phil)

    Also known as: Onyx, Squid, Phil

06

What researchers measure

Primary outcomes

  1. Incidence of CSDH regression

    Volume reduction of CSDH in follow-up imaging (CT/MRI) 60 days after embolization

    Time frame: 60 dyas

Secondary outcomes

  1. Incidence of CSDH progression or recurrence

    Increase in volume of CSDH

    Time frame: 60 days

  2. Incidence of new neurological deficit (ND)

    ND includes: dementia, memory loss, cognitive problems, monoparesis/hemiparesis, cranial nerve paresis, dysphasia/aphasia

    Time frame: 60 days

  3. incidence of Death

    Time frame: 60 days

  4. Incidence of new ischemic stroke

    new ischemia in imaging (DWI/MRI or CT scan) within 60 days of operation

    Time frame: 60 days

  5. Incidence of myocardial infarction/myocardial ischemia

    new ischemic heart attack within 60 days of operation

    Time frame: 60 days

  6. Incidence of embolization complication in brain

    cranial nerve palsy (especially VII), vision loss (ophthalmic/retinal artery occlusion), ...

    Time frame: 48 hours

  7. incidence of embolization complication out of brain

    puncture hematoma, major artery dissection, new renal failure, ...

    Time frame: 15 days

07

Study locations

1 of 1 sites recruiting
  • Ghaem Hospital, Mashhad University of Medical Sciences
    Mashhad, Iran, Islamic Republic of
    Recruiting
    • Humain Baharvahdat, MD · Contacthumainbv@yahoo.fr · +98-915-110-0400
    • Feizollah EBRAHIMNIA, MD · Principal investigator
    • Ali SHARIAT-RAZAVI, MD · Sub investigator
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 19, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04574843
Lead sponsor
Mashhad University of Medical Sciences
Responsible party
Humain Baharvahdat (Associate Professor, Mashhad University of Medical Sciences) — Principal investigator
First posted
Oct 5, 2020
Start date
Aug 1, 2020
Primary completion
Dec 31, 2023 (estimated)
Completion
Mar 31, 2024 (estimated)
Last update
May 19, 2023

Study contacts

Humain Baharvahdat, MD
Contact
humainbv@yahoo.fr
+98-915-110-0400
Masoud Pishjoo, MD
Contact
masoud.pishjoo@gmail.com
‭+98 915 362 8792‬
Humain Baharvahdat, MD
study director · Department of Neurosurgery, Mashhad University of Medical Sciences, Mashhad, Iran

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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