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RecruitingNCT06451887EMBRACEUpdated Jun 11, 2024

Early Identification of Malignant Brain Edema in laRge Artery oCclusive Stroke After Endovascular Therapy (EMBRACE Study)

An observational study in Endovascular Therapy, Brain Edema and Prediction Model, sponsored by Zhejiang Provincial People's Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2024-06-11.

Sponsored by Zhejiang Provincial People's Hospital · Observational

From the registry’s dates

  • Started Apr 2024; still recruiting 2 years 7 months later.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
1,950
Ages
18 Years to 80 Years
Sex
All
01

Study summary

To design and validate a predictive model for malignant brain edema after endovascular thrombectomy.

Read the detailed description

Stroke is a significant global cause of death and disability. Endovascular thrombectomy (EVT) is currently the best treatment for acute large vessel occlusion stroke (ALVOS), as it can greatly reduce mortality and improve patient outcomes. However, only half of patients who undergo EVT achieve functional independence, and malignant brain edema (MBE), a severe complication, can occur after the procedure, leading to a poor prognosis. Previous studies have confirmed the effectiveness of early decompressive hemicraniectomy in reducing morbidity and mortality in patients with malignant brain edema. Therefore, identifying high-risk patients for MBE can help clinicians make appropriate triage and early intervention decisions, potentially saving patients' lives.

Predictive factors for post-ischemic stroke brain edema have been widely discussed, and reliable early predictive indicators have been identified, such as age, early consciousness disorders, baseline National Institutes of Health Stroke Scale (NIHSS), atrial fibrillation, hypertension, baseline blood glucose, and the level of reperfusion after EVT. Radiological factors, such as the Alberta Stroke Program Early CT Score (ASPECTS), collateral circulation rating of arteries, venous outflow status, CT perfusion core infarct volume, perfusion-based collateral status, and clot burden, are closely associated with the occurrence of MBE post-EVT. However, due to individual differences and multiple factors affecting MBE, a single factor cannot effectively predict MBE. Establishing a clinical risk prediction model can effectively identify high-risk populations for MBE at an early stage.

02

Conditions studied

  • Endovascular Therapy
  • Brain Edema
  • Prediction Model
  • Ischemic Stroke

Keywords

  • Endovascular therapy
  • Brain edema
  • Prediction model
  • Ischemic stroke
03

In context

Brain Edema

102 studies on the registry are indexed under Brain Edema; 25 are open to participants now.

This study's planned enrollment of 1,950 is above the median of 88 across 31 observational studies indexed under Brain Edema.

Browse Brain Edema studies →

Lead sponsor

Zhejiang Provincial People's Hospital is the lead sponsor of 62 studies on the registry; 42 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study is a multicenter, prospective, observational clinical registry study, commenced on April 1, 2024, and is expected to end in June 2027. Participants were ALVOS patients undergoing EVT treatment in neurology departments from multiple stroke centers. The data from Zhejiang Provincial People's Hospital compose the model training cohort, while data from other centers serve as an independent external validation cohort. The protocol of the study has been approved by the human Ethics Committee of Zhejiang Provincial People's Hospital (KY2024058). All clinical investigations will be conducted according to the principles set in the Declaration of the Helsinki.

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)Age > 18 years old; (2)Onset of stroke to hospital admission \< 24 hours; (3)Admission with a head CT scan ruling out hemorrhage; (4)Patients undergoing CT perfusion scan before treatment; (5)Confirmation of internal carotid artery (ICA) or middle cerebral artery (MCA) occlusion or tandem occlusion by Digital Subtraction Angiography (DSA) and subsequent EVT; (6)complete 3-months follow-up.

Exclusion criteria

Exclusion Criteria:

  • (1)Poor quality of preoperative CT perfusion imaging; (2)Posterior circulation occlusion or isolated anterior cerebral artery occlusion; (3)Presence of other severe diseases such as malignant tumors, severe organ failure, or other life-threatening conditions with an expected survival period of less than 90 days; (4)Incomplete imaging and clinical data.
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
1,950 participants (estimated)
Target follow-up
3 Months
Patient registry
Yes
06

What researchers measure

Primary outcomes

  1. The occurrence of MBE

    Patients developed MBE within 3 days post-EVT

    Time frame: 3 days post-EVT

Secondary outcomes

  1. 90 days mRS score

    The follow-up mRS scores of enrolled patients at 90 days after EVT.

    Time frame: 90 days after EVT

  2. PH

    Evidence of parenchymal hemorrhage (PH type) on cranial imaging at 3-5 days after EVT

    Time frame: 3-5 days after EVT

07

Study locations

1 of 1 sites recruiting
08

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 11, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06451887
Lead sponsor
Zhejiang Provincial People's Hospital
Responsible party
Sponsor
First posted
Jun 11, 2024
Start date
Apr 1, 2024
Primary completion
Mar 2027 (estimated)
Completion
Jun 2027 (estimated)
Last update
Jun 11, 2024

Study contacts

Sheng Zhang
Contact
zhangsheng@hmc.edu.cn
18758188313

Oversight

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

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