NCT05327933

Brief Summary

Patients with a chronic subdural hematoma (cSDH), that is, a blood accumulation between two meninges developing over a long period of time, often have recurrent bleedings after an initial operation. The study aims to show that additional surgery reduces the risk of recurrent bleeding. The additional procedure aims to block small blood vessels in the skull with tiny plastic particles. The small blood vessels are embolized using X-rays and a contrast medium and a fine tube that is inserted into the diseased vessels of the head via the groin. Patients of full age who have undergone burr hole trepanation as a first operation, i.e. a blood drain through a hole in the cranial cavity, can participate in the study. Participating patients are randomly assigned to a control group with treatment according to clinical routine or a treatment group with an additional occlusion of the blood vessels in the skull. In addition, patients can consent to a genetic test to determine the relationship between a coagulation factor and the risk of recurrence of the hematoma. In order to record the test results, check-up examinations are carried out after one and three months.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
154

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started May 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 6, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 14, 2022

Completed
1 month until next milestone

Study Start

First participant enrolled

May 26, 2022

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2025

Completed
Last Updated

March 30, 2025

Status Verified

December 1, 2024

Enrollment Period

3.4 years

First QC Date

April 6, 2022

Last Update Submit

March 25, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • cSDH recurrence rates after surgery

    A recurrence occurs when at least one of the following criteria is met: * recurrent cSDH with at least the same volume (\>- 10%) compared to the findings at baseline and / or * recurrent cSDH which requires surgery

    Within three months of follow-up

Secondary Outcomes (3)

  • Impairment due to neurological deficits assessed by the modified Rankin Scale

    Evaluated at three months after baseline

  • Number of recurrence-associated complications

    Within three months of follow-up

  • Number of complications associated with interventional therapy

    Within three months of follow-up

Other Outcomes (2)

  • Relationship between factor XIII deficiency and risk of recurrence

    Within three months of follow-up

  • Predisposition of the genetic variants F13A1 rs2815822 and F13B rs12134960 for factor XIII deficiency

    Within three months of follow-up

Study Arms (2)

Surgery plus endovascular MMA embolization

EXPERIMENTAL
Procedure: Surgery plus endovascular MMA embolization

Surgery alone

ACTIVE COMPARATOR
Procedure: Surgery alone

Interventions

A micro catheter is inserted transfemorally into the branches of the middle meningeal artery (MMA) in a minimally invasive manner and the periphery is occluded using polyvinyl alcohol (PVA) particles to prevent future bleeding. If the desired catheter position cannot be achieved due to the anatomical conditions, a more proximal closure of the MMA using Onyx® or micro-electric coils is performed. Embolization of the MMA by PVA particles with sizes between 40-300 µm is preferred over embolization by coils and Onyx®, since the capillary network of the dura is entirely blocked when using particles. In order to identify the vessels to be closed, a digital subtraction angiography (DSA) is performed.

Surgery plus endovascular MMA embolization
Surgery alonePROCEDURE

Evacuation of cSDH

Surgery alone

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who have undergone surgery by means of one or more burr hole trepanations during the first manifestation of a cSDH (unihemispherical or bihemispherical) detected by computed tomography or magnetic resonance tomography
  • Age ≥18 years
  • Sufficient compliance and ability to consent
  • Patient's informed consent for surgical as well as endovascular interventional procedure and participation in the study

You may not qualify if:

  • Conservatively treated cSDH
  • Radiological evidence of an acute or subacute subdural hematoma, subarachnoid hemorrhage, intracerebral hematoma or epidural hematoma
  • Surgical technique: craniotomy, craniectomy, bilateral burr hole trepanation
  • Angiography cannot be performed within 72 hours after surgery
  • Age \<18 years
  • Supervisory relationship
  • Pregnancy
  • Lack of informed consent
  • Lack of compliance
  • Homozygous factor XIII deficiency with residual activity \<10%

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Unfallkrankenhaus Berlin

Berlin, State of Berlin, 12683, Germany

RECRUITING

Related Publications (1)

  • Hoenning A, Lemcke J, Rot S, Stengel D, Hoppe B, Zappel K, Schuss P, Mutze S, Goelz L. Middle Meningeal Artery Embolization Minimizes Burdensome Recurrence Rates After Newly Diagnosed Chronic Subdural Hematoma Evacuation (MEMBRANE): study protocol for a randomized controlled trial. Trials. 2022 Aug 22;23(1):703. doi: 10.1186/s13063-022-06506-3.

MeSH Terms

Conditions

Hematoma, Subdural, Chronic

Interventions

Surgical Procedures, Operative

Condition Hierarchy (Ancestors)

Hematoma, SubduralIntracranial Hemorrhage, TraumaticIntracranial HemorrhagesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemVascular DiseasesCardiovascular DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsHematomaHemorrhageWounds and Injuries

Central Study Contacts

Johannes Lemcke, PD Dr. med.

CONTACT

Leonie Goelz, Dr. med.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Deputy Head Department of Neurosurgery

Study Record Dates

First Submitted

April 6, 2022

First Posted

April 14, 2022

Study Start

May 26, 2022

Primary Completion

October 1, 2025

Study Completion

October 1, 2025

Last Updated

March 30, 2025

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

Locations