Stroke is an acute focal injury of the central nervous system caused by cerebral vessels. One in every four people is affected by stroke at different times in life. Globally, stroke is the second leading cause of death and third leading cause of disability in adults. we hypothesized that in patients with acute large vessel occlusive ischemic stroke treated with mechanical thrombectomy, the infusion of 20% human serum albumin solution into the revascularization area can exert a stronger neuroprotective effect.
In the previous period, we have conducted a clinical trial on the safety and feasibility of arterial infusion of 20% human serum albumin solution. The results of the study found that after arterial infusion of 20% human serum albumin solution at a dose of 0.6g/kg to the subject's vascularization area, the subjects did not develop significant complications related to albumin solution. There were no serious adverse events associated with arterial infusion of albumin solution in all subjects. After the evaluation of the Data Safety Monitoring Board, the clinical study was considered to be the next step, which is to initially explore the effectiveness of 0.6g/kg arterial infusion of 20% human serum albumin solution for neuroprotection of subjects.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
46
The experimental group would inject 20% human blood albumin solution into the responsible blood vessel supply area by catheter artery at a dose of 0.6g/kg. The infusion time is 20-30 minutes. All participant will receive mechanical thrombectomy and a standard clinical therapy.
mechanical thrombectomy and a standard clinical therapy
Ming wei
Tianjin, China, Tianjin Municipality, China
cerebral infarct volume
infarct volume is evaluated mainly through brain MRI
Time frame: 24-48 hours after randomization
modified Rankin Scale score(mRS)
the mRS is an ordinal disability score of 7 categories (0=no symptoms to 5=severe disability, and 6=death)
Time frame: 90 ±10 days after randomization
the good prognosis at 90 days assessed by mRS
the mRS is an ordinal disability score of 7 categories (0=no symptoms to 5=severe disability, and 6=death)
Time frame: 90 ±10 days after randomization
scores assessed by National Institutes of Health Stroke Scale (NIHSS)
the NIHSS is a stroke severity score that is composed of 11 items, range from 0 to 42, higher values indicate more severe deficits
Time frame: 24 ± 6 hours, 48 ± 12 hours, 7 ± 2 days, 90 ±10 days after randomization
change in National Institutes of Health Stroke Scale (NIHSS) score from baseline to 24 hours
the NIHSS is a stroke severity score that is composed of 11 items, range from 0 to 42, higher values indicate more severe deficits
Time frame: from baseline to 24 ± 6 hours
improvement of neurologic function after 24 hours
NIHSS score decreased by more than 4 points or NIHSS score was 0; secondary clinical efficacy endpoint; the NIHSS is a stroke severity score composed of 11 items (range from 0 to 42, higher values indicate more severs deficits)
Time frame: 24 ± 6 hours after randomization
Barthel index (BI)
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the BI is an ordinal disability score of 10 categories (range from 0-100, higher values indicate better prognosis)
Time frame: 90 ±10 days after randomization
revascularization on follow-up imaging
secondary imaging efficacy endpoint
Time frame: 24 (16 to 36) hours
24-hours neurologic deterioration
NIHSS score increased by more than 4 points; the NIHSS is a stroke severity score composed of 11 items (range from 0 to 42, higher values indicate more severe deficits); clinical safety endpoint
Time frame: 24 ± 6 hours after randomization
any intracranial hemorrhage on follow-up imaging
imaging safety endpoints; per ECASSIII definition and per Heidelberg bleeding classification
Time frame: 24 (12 to 36) hours
symptomatic intracerebral hemorrhage
imaging safety endpoints; deterioration in NIHSS score of ≥4 point within 24 hours;per ECASS III definition and per Heidelberg bleeding classification
Time frame: 24 (12 to 36) hours
Mortality
clinical safety endpoint
Time frame: 90 ± 10 days after randomization
Stroke recurrence
clinical safety endpoint
Time frame: 90 ± 10 days after randomization
Survival rates
secondary clinical efficacy endpoint
Time frame: 7 ± 2 days, 90 ± 10 days after randomization
mRS4-6
secondary clinical efficacy endpoint;the mRs is an ordinal disability score of 7 categories (0 = no symptoms to 5 = severe disability, and 6 = death)
Time frame: 90 ± 10 days after randomization