Trial of Rescue Endovascular Treatment for Progressive Acute Mild Ischemic Stroke With Basilar Artery Occlusion With Extended Time Window
NCT ID: NCT06843356
Last Updated: 2025-04-15
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
159 participants
INTERVENTIONAL
2024-06-01
2026-12-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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Endovascular Therapy Group
Researchers can choose to deal with the stenosis or occlusion of blood vessels according to their own judgment, including stent thrombectomy, thrombus aspiration, balloon angioplasty, stent replacement, intra-arterial thrombolysis or various combinations of these methods.
Endovascular Treatment
Neurointerventionist determine whether to proceed with interventional therapy after assessing the location and degree of occlusion, the tortuosity of the access vessel, and the presence of stenosis or occlusion in the proximal artery. In cases where there is no proximal stenosis or occlusion, mechanical thrombectomy is performed, and the specific thrombectomy strategy is tailored by the researcher based on the patient's condition. For lesions associated with proximal vascular stenosis or occlusion, it is necessary to navigate the catheter through the proximal stenosis or occlusion to access the intracranial occlusion. Researchers have the discretion to treat the stenotic or occluded vessels, which may include options such as no treatment, stent thrombectomy, thrombus aspiration, balloon angioplasty, stent replacement, intra-arterial thrombolysis or various combinations of these methods.
Best Medical Management Group
Participants receive best medical management only. Best Medical Treatment and maximum supportive care according to local guidelines, not including mechanical thrombectomy, no intra-arterial treatment.
No interventions assigned to this group
Interventions
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Endovascular Treatment
Neurointerventionist determine whether to proceed with interventional therapy after assessing the location and degree of occlusion, the tortuosity of the access vessel, and the presence of stenosis or occlusion in the proximal artery. In cases where there is no proximal stenosis or occlusion, mechanical thrombectomy is performed, and the specific thrombectomy strategy is tailored by the researcher based on the patient's condition. For lesions associated with proximal vascular stenosis or occlusion, it is necessary to navigate the catheter through the proximal stenosis or occlusion to access the intracranial occlusion. Researchers have the discretion to treat the stenotic or occluded vessels, which may include options such as no treatment, stent thrombectomy, thrombus aspiration, balloon angioplasty, stent replacement, intra-arterial thrombolysis or various combinations of these methods.
Eligibility Criteria
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Inclusion Criteria
2. Symptoms and signs consistent with basilar artery ischemia.
3. Basilar artery or vertebral artery occlusion confirmed by computed tomography angiography (CTA), magnetic resonance angiography (MRA), or digital subtraction angiography (DSA); if vertebral artery occlusion is present, it should completely block blood flow along the basilar artery.
4. First-time onset meeting the criteria for mild ischemic stroke diagnosis: NIHSS score \<6.
5. Symptom progression within 7 days of the first onset.
6. Symptom progression: NIHSS score increase ≥4 points or consciousness level increase ≥2 points from the initial NIHSS score.
7. Time from symptom onset to randomization \>24 hours.
8. Symptom progression to randomization time ≤24 hours.
9. NIHSS score ≥10 before randomization.
10. pc-ASPECTS before randomization ≥ 6
11. The patient or their family members are willing to comply with the protocol requirements and data collection procedures, understand, and sign the informed consent form.
Exclusion Criteria
2. mRS \>2.
3. Factors in the target vessel that are expected to prevent completion of endovascular treatment.
4. Multiple vessel occlusions.
5. Prior imaging confirmed or investigator-assessed chronic basilar artery occlusion.
6. Presence of untreated intracranial aneurysms, intracranial tumors (except small meningiomas), or intracranial vascular malformations.
7. Intracranial hemorrhage within the past 6 months, including parenchymal brain hemorrhage, intraventricular hemorrhage, or subarachnoid hemorrhage.
8. Gastrointestinal or urinary tract bleeding, acute myocardial infarction, cranial trauma, or major surgery within the past month.
9. Presence of active bleeding, coagulation disorders, or uncorrectable bleeding tendencies.
10. Platelet count \<40×10\^9/L, or INR \>2 during anticoagulation therapy (irreversible).
11. Severe heart, liver, or kidney dysfunction or other severe systemic late-stage diseases.
12. Known allergy to iodine contrast agents or other treatment-related drugs.
13. Medically uncontrolled refractory hypertension (defined as persistent systolic blood pressure \>185 mmHg or diastolic blood pressure \>110 mmHg) (Note: Participants can be included if their blood pressure is controllable with medication and maintained at an acceptable level).
14. Uncontrollable blood glucose \<2.8 mmol/L or \>22.2 mmol/L.
15. Pregnancy or breastfeeding.
16. Life expectancy \<6 months.
17. Participation in other clinical studies that may affect outcome assessment.
18. Investigator's judgment that the patient is unsuitable for participation in this study or may face significant risks (e.g., due to mental illness, cognitive, or emotional disorders preventing understanding and/or compliance with study procedures and/or follow-up).
18 Years
ALL
No
Sponsors
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First Affiliated Hospital of Wannan Medical College
OTHER
Responsible Party
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Locations
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First Affiliated Hospital of Wannan Medical College
Wuhu, Anhui, China
Countries
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Central Contacts
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Facility Contacts
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Xianjun Huang, PhD
Role: primary
Other Identifiers
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RESCUE-BAO
Identifier Type: -
Identifier Source: org_study_id
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