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Endovascular Treatment Key Technique and Emergency Work Flow Improvement of Acute Ischemic Stroke

Endovascular Treatment Key Technique and Emergency Work Flow Improvement of Acute Ischemic stroke-a Prospective Multicenter Registry Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03370939
Acronym
ANGEL-ACT
Enrollment
2004
Registered
2017-12-13
Start date
2017-11-11
Completion date
2019-07-07
Last updated
2020-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intracranial Artery Occlusion With Infarction (Disorder)

Keywords

ischemic stroke, endovascular treatment, registry

Brief summary

Endovascular thrombectomy (EVT) is effective and safe for acute ischemic stroke (AIS) caused by large vessel occlusion (LVO) in major clinical trials. Whether the benefit of EVT in randomized trials could be generalized to clinical practice, especially in developing countries, remains unknown. The prospective Chinese ANGEL-ACT Registry (Endovascular Treatment Key Technique and Emergency Work Flow Improvement of Acute Ischemic Stroke) was established to evaluate the utilization, and subsequent outcomes of EVT treated AIS patients. This study is a multi-center, prospective registry study initiated by researchers, funded by National Key R&D Program of China. A total of 2,000 patients with acute ischemic stroke will undergo endovascular treatment. The hypothesis was that favorable outcomes from clinical trials could be achieved in clinical practice in China.

Interventions

None listed

Sponsors

Beijing Tiantan Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥ 18 years old; 2. Diagnosis of acute ischemic stroke; 3. Imaging confirmed intracranial large artery occlusion (LVO): intracranial internal carotid artery (ICA T/L), middle cerebral artery (MCA M1/M2), anterior cerebral artery (ACA A1/A2), basilar artery (BA), vertebral artery (VA V4), and posterior cerebral artery (PCA P1); 4. Initiation of any type of endovascular treatment (EVT), including intra-arterial thrombolysis, mechanical thrombectomy, angioplasty, and stenting; 5. The patient or the patient's legal representative is able and willing to sign the informed consent.

Exclusion criteria

1. Isolated cervical ICA or VA occlusion; 2. No evidence of LVO on DSA.

Design outcomes

Primary

MeasureTime frameDescription
Functional independence at 90 days (modified Rankin Scale of 0-2)90±7 days after enrollmentThe range of modified Rankin Scale was from 0 to 6. 0-No symptoms;1-No significant disability;2-Slight disability;3-Moderate disability;4-Moderately severe disability;5-Severe disability;6 -Dead.A higher score indicates worse a outcome.
Symptomatic intracranial hemorrhage (sICH) within 12-36 hours after the procedure12-36 hours after the procedureHeidelberg Bleeding Classification): new intracranial hemorrhage detected by brain imaging associated with ≥4 points total National Institutes of Health Stroke Scale (NIHSS), ≥2 points in one NIHSS category, leading to intubation/ hemicraniectomy/ EVD placement or other major medical/surgical intervention, or absence of alternative explanation for deterioration
Time from symptom onset to recanalizationThe end of the procedure

Secondary

MeasureTime frameDescription
Changes in NIHSS score 24 hours after the procedure24 hours after the proceduredifference between NIHSS score 24 hours after the procedure and baseline
Changes in NIHSS score 7 days after the procedure or at discharge7 days after the procedure or dischargedifference between NIHSS score 7 days after the procedure or discharge and baseline
EQ-5D 90 days after the procedure90±7 days after the procedureEQ-5D is a standardized instrument for measuring generic health status. Rated level can be coded as a number 1, 2, or 3, which indicates having no problems for 1, having some problems for 2, and having extreme problems for 3. As a result, a person's health status can be defined by a 5-digit number, ranging from 11111 (having no problems in all dimensions) to 33333 (having extreme problems in all dimensions).A higher score indicates a better outcome.
Barthel index (BI) 90 days after the procedure90±7 days after the procedureThe BI has a score of 0-100. A higher score indicates a better outcome.
Parenchymal hematoma (PH2)12-36 hours after the procedurePH2 is defined as hematoma in \>30% of infarct area
Recanalization rate at the end of the procedureat the end of the proceduremTICI score 2b-3
All-cause mortality within 90 days90±7 days after the procedure
Time from onset to arrivalAt baseline, after arrival at the hospital
Time from arrival to imagingAt baseline, after taking any brain imaging
Time from imaging to punctureAt baseline, during the procedure, after successful groin puncture
Time from puncture to recanalizationAt baseline, during the procedure, after successful recanalization
Any intracranial hemorrhage on imaging12-36 hours after the procedure
Recanalization rate after the first attemptAt baseline, during the procedure, after the first attempt of endovascular treatmentmTICI score 2b-3
Changes in NIHSS score immediately after the procedurewithin 2 hours after the proceduredifference between NIHSS score immediately after the procedure and baseline

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 31, 2026