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A Randomized Trial Of Endovascular Treatment For Acute Posterior Large Vessel Occlusion

Standard Medical Treatment Plus Endovascular Treatment Versus Standard Medical Treatment Alone for Stroke Patient With Large Vessel Occlusion In The Posterior Circulation: A Multicenter, Randomized, Clinical Trial

Status
Suspended
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04743076
Acronym
BASILAR-2
Enrollment
386
Registered
2021-02-08
Start date
2021-03-16
Completion date
2024-05-16
Last updated
2021-09-14

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

Conditions

Vertebrobasilar Stroke

Keywords

endovascular treatment, thrombolysis

Brief summary

The aim of this trial is to investigate whether endovascular treatment can improve the 90-day functional outcome of acute large vessel occlusion in the posterior circulation.

Detailed description

At least seven randomized controlled trials have consistently shown that endovascular treatment can improve the functional outcome of stroke patients with acute anterior large vessel occlusion. However, these trials did not include patients with large vessel occlusion in the posterior circulation. The hypothesis of this trial: Compared with standard medical treatment alone, standard medical treatment combined with endovascular treatment can significantly improve the 90-day functional outcome of acute large vessel occlusion in the posterior circulation.

Interventions

PROCEDUREEndovascular treatment

Endovascular treatment

OTHERStandard medical treatment

Standard medical treatment

Sponsors

Xinqiao Hospital of Chongqing
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Caregiver, Outcomes Assessor)

Eligibility

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

Inclusion criteria

1. Age: i. 18 \ 80 years old, pc-ASPECTS score ≥ 6; ii. \> 80 years old, pc-ASPECTS score ≥ 8 and mRS = 0 before the onset 2. NIHSS score ≥ 10 before randomization; 3. VA-V4 or basilar artery occlusion proved by CTA/MRA/DSA; 4. Time from stroke onset to randomization within 23.5 hours; 5. Written informed consent is obtained from patients and/or their legal representatives.

Exclusion criteria

1. CT or MR evidence of intracranial hemorrhage; 2. Pre-morbidity with a modified Rankin scale score ≥ 3; 3. The patient is in deep coma; 4. Currently in pregnant or lactating or serum beta HCG test is positive on admission; 5. Arterial tortuosity and/or other arterial disease that would prevent the device from reaching the target vessel; 6. Contraindication to radiographic contrast agents, nickel, titanium metals or their alloys; 7. Significant mass effect in the cerebellar hemisphere or hydrocephalus on imaging; 8. Imaging manifestations of diffuse bilateral brainstem ischemia; 9. Multivessel occlusive disease (combined with anterior and posterior circulation occlusion or subtotal occlusion); 10. Cerebral vasculitis, intracranial arteriovenous malformation, aneurysm, or brain tumor with mass effect; 11. Participating in other clinical trials; 12. Any terminal illness with life expectancy less than 6 months; 13. Patients with a preexisting neurological or psychiatric disease that would confound the neurological functional evaluations; 14. Past neurological or psychiatric diseases that hinder the assessment of neurological function; 15. Unlikely to be available for 90-day follow-up.

Design outcomes

Primary

MeasureTime frameDescription
Modified Rankin scale score90 daysdisability level

Secondary

MeasureTime frameDescription
Improvement in NIHSS between baseline and 24 hoursat 24 hours from randomizationneurological changes
Improvement in NIHSS between baseline and 5~7dat 5~7 days from randomizationneurological changes
Improvement in GCS between baseline and 24 hoursat 24 hours from randomizationneurological changes
Asymptomatic intracranial hemorrhage within 48 hourswithin 48 hours after endovascular treatmentevaluate intracranial hemorrhage
Rate of a score of 0~2 on modified Rankin scale90 daysFunctional independence
Serious non-hemorrhagic adverse eventswithin 90 daysevaluate complications and any adverse events
Score of 90-day EQ-5D scale90 daysFunctional independence
Mortality within 90 days90 daysevaluate death rate of the two treatment groups
Symptomatic intracranial hemorrhage within 48 hourswithin 48 hours after endovascular treatmentevaluate intracranial hemorrhage
Procedural-related complications and severe adverse eventswithin 90 daysevaluate complications and any adverse events

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026