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Safety and efficacy of adjunctive intra-arterial urokinase after successful endovascular thrombectomy in patients with large vessel occlusion stroke

Safety and efficacy of adjunctive intra-arterial urokinase after successful endovascular thrombectomy in patients with large vessel occlusion stroke

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200065617
Enrollment
Unknown
Registered
2022-11-10
Start date
2022-11-15
Completion date
Unknown
Last updated
2024-05-27

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

Conditions

Acute ischemic stroke

Interventions

Intraarterial thrombolysis group:intraarterial urokinase
Control group:standard treatment

Sponsors

The Second Affiliated Hospital of Chongqing Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18 years or older; 2. The time from onset to randomization was within 24 hours; 3. Large vessel occlusive stroke in the anterior circulation confirmed by CTA/MRA ( Intracranial segment of internal carotid artery or Middle cerebral artery) and the vessel responsible for the signs and symptoms of acute ischemic stroke; 4. NIHSS score = 6 based on NCCT when the time of onset-to-puncture = 7 based on NCCT or meet the DEFUSE-3 enrollment criteria (patients were eligible if they had an initial infarct volume (ischemic core) of less than 70 ml, a ratio of volume of ischemic tissue to initial infarct volume of 1.8 or more. DAWN enrollment criteria: group A were 80 years of age or older, had a score of 10 or higher on the NIHSS scores and had an infarct volume of less than 21 ml, those in group B were younger than 80 years of age, had a score of 10 or higher on the NIHSS, and had an infarct volume of less than 31 ml, and those in Group C were younger than 80 years of age, had a score of 20 or higher on the NIHSS, and had an infarct volume of 31 to less than 51 ml; 6. Successful endovascular thrombectomy (eTICI 2c-3); 7. Written informed consent signed by patients or their family members.

Exclusion criteria

Exclusion criteria: 1. Intracranial hemorrhage confirmed by cranial computed tomography (CT) or magnetic resonance imaging (MRI); 2. Treated by intravenous thrombolysis; 3. Prestroke mRS score >= 2; 4. Intraoperative DSA angiography suggests vessel penetration, entrapment, and extravasation of contrast medium; 5. Pregnant or lactating women; 6. Allergic to contrast agents; 7. Current participation in another clinical trial; 8. Systolic pressure greater than 185 mmHg or diastolic pressure greater than 110 mmHg after aggressive treatment; 9. Genetic or acquired bleeding disposition with anticoagulation factor deficiency or already taking oral anticoagulants and INR > 1.7; 10. Blood glucose 22.2 mmol/L (400 mg/dl), platelets 220µmol/L (2.5mg/dl)); 13. Any terminal illness with a life expectancy of less than 6 months; 14. Unlikely to be available for 90-day follow-up; 15. Intracranial aneurysm, arteriovenous malformation; 16. Brain tumors with occupying effect on imaging; 17. Puncture to recanalization time >90min; 18. Total pass numbers>3.

Design outcomes

Primary

MeasureTime frame
Proportion of mRS score 0 to 1 at 90 days;

Secondary

MeasureTime frame
Symptomatic intracerebral hemorrhage (sICH) rate within 48 h and mortality at 90 days;Shift in the distribution of mRS scores at 90 days;Proportion of patients with functional independence (mRS score 0 to 2) at 90 days;EQ-5D-5L at 90 days;The change of the NIHSS score at five to seven days or discharge if earlier from baseline;

Countries

China

Contacts

Public ContactZi Wenjie; Chen Yangmei

The Second Affiliated Hospital of Chongqing Medical University

ziwenjie1981@163.com+86 18523033816;+86 13608348562

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 5, 2026