EVT in Acute Basilar Artery Occlusion With Large Infarction Core

NCT ID: NCT07090941

Last Updated: 2025-07-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

348 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-01

Study Completion Date

2027-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

A multicenter, prospective, open-label, blinded endpoint, randomized controlled trial designed to evaluate the efficacy and safety of best medical management (BMM) combined with endovascular treatment (EVT) versus BMM alone in acute basilar artery occlusion (BAO) patients with large infarct cores.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This trial aims to evaluate whether best medical management (BMM) combined with endovascular treatment (EVT) versus BMM alone improves neurological outcomes in acute basilar artery occlusion (BAO) patients with large infarct cores. A centralized 1:1 simple randomization design assigns participants to receive either EVT or BMM based on randomization results.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Basilar Artery Occlusion Large Ischemic Core Large Core Infarct Endovascular Treatments

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Caregivers Outcome Assessors

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Endovascular Treatment Group

Endovascular treatment procedures will be performed in accordance with each center's standard operating protocols. Based on the characteristics of vascular lesions and clinical judgment, investigators may select appropriate interventions for stenosis or occlusion, including stent retriever thrombectomy, aspiration thrombectomy, balloon angioplasty, stenting, intra-arterial thrombolysis, or various combinations of these methods.

Group Type EXPERIMENTAL

Endovascular Treatment

Intervention Type PROCEDURE

The vascular access route is selected based on the patient's anatomical characteristics and operator discretion. Endovascular treatment (EVT) procedures must adhere to each participating center's standardized operating protocols. Upon confirmation of vascular occlusion, EVT may be performed using devices approved by China's National Medical Products Administration (NMPA). Based on lesion-specific features and operator judgment, permissible techniques include stent retriever thrombectomy, aspiration thrombectomy, balloon angioplasty with or without stenting, or intra-arterial thrombolysis. Investigational devices are strictly prohibited.

Best Medical Management Group

Participants receive the best medical management only. Best Medical Treatment and maximum supportive care according to local guidelines, not including mechanical thrombectomy or intra-arterial treatment.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Endovascular Treatment

The vascular access route is selected based on the patient's anatomical characteristics and operator discretion. Endovascular treatment (EVT) procedures must adhere to each participating center's standardized operating protocols. Upon confirmation of vascular occlusion, EVT may be performed using devices approved by China's National Medical Products Administration (NMPA). Based on lesion-specific features and operator judgment, permissible techniques include stent retriever thrombectomy, aspiration thrombectomy, balloon angioplasty with or without stenting, or intra-arterial thrombolysis. Investigational devices are strictly prohibited.

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* 1\. Age ≥18 years. 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), digital subtraction angiography (DSA); if vertebral artery occlusion is present, it must completely obstruct blood flow to the basilar artery.

4\. POST-NIHSS score ≥10 at randomization. 5. Time from symptom onset to randomization ≤24 hours (symptom onset defined as last known well time).

6\. pc-ASPECTS of 3-5 on CT/MRI (for patients aged \<80 years) or pc-ASPECTS of 3-7 (for patients aged ≥80 years).

7\. Willingness of the patient or legally authorized representative to comply with protocol requirements and data collection procedures, with documented informed consent.

Exclusion Criteria

* 1\. Pre-stroke modified Rankin Scale (mRS) score \>2. 2. Factors in the target vessel that are expected to prevent completion of endovascular treatment.

3\. Concurrent anterior and posterior circulation strokes or multivessel occlusions.

4\. Significant mass effect with imaging or clinical signs of obstructive hydrocephalus or tonsillar herniation.

5\. Basilar artery occlusion confirmed as chronic by prior imaging or investigator judgment.

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\. Presence of active bleeding, coagulation disorders, or uncorrectable bleeding tendencies.

9\. Severe heart, liver, or kidney dysfunction or other severe systemic late-stage diseases.

10\. Known allergy to iodine contrast agents or other treatment-related drugs. 11. 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).

12\. Uncontrollable blood glucose \<2.8 mmol/L or \>22.2 mmol/L. 13. Pregnancy or breastfeeding. 14. Life expectancy \<6 months. 15. Participation in other clinical studies that may affect outcome assessment. 16. 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).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

The First Affiliated Hospital of Hainan Medical University

OTHER_GOV

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

zhaozhenqiang

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

First Affiliated Hospital of Hainan Medical University

Haikou, Hainan, China

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

China

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Zhengqiang Zhao, PhD

Role: CONTACT

8613976015677

Wen Sun, PhD

Role: CONTACT

8615050589620

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Zhengqiang Zhao, PhD

Role: primary

8613976015677

Wen Sun, PhD

Role: backup

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

BOLT

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Antithrombotic Regimens and Outcome
NCT00448461 COMPLETED PHASE4
CARESS in Acute Myocardial Infarction
NCT00220571 COMPLETED PHASE3