Comparing two methods for treating stroke caused by basilar artery blockage
Official title: Contact Aspiration Versus Stent Retriever for Recanalisation of Acute Stroke Patients With Basilar Artery Occlusion: The Posterior Circulation ASTER Randomized Trial
Run by Hopital Foch · NCT05320263 · Data updated 2026-11-12
This study is testing two different methods for removing blood clots in the brain to see which one helps adults with stroke caused by a blocked basilar artery recover better.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 480 (estimated) |
| Sponsor | Hopital Foch Academic / other |
| Locations | 12 sites (Bordeaux and 11 other locations) |
| Status | Recruiting |
| Started | November 19, 2022 |
| Main results expected | July 2026 |
| Study ends | July 2027 |
| Registry record updated | March 1, 2023 |
| Trial ID | NCT05320263 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are adults aged 18 and older who have experienced an acute ischemic stroke with confirmed basilar artery occlusion.
✕Probably not a fit
Patients with known chronic large vessel stenosis or occlusion in the symptomatic territory, severe allergies to contrast medium, or those who are pregnant may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to compare the effectiveness of two thrombectomy techniques—contact aspiration and stent retriever thrombectomy—in patients suffering from acute ischemic stroke due to basilar artery occlusion. The study will enroll adults who meet specific criteria and will assess the speed and success of recanalization, which is crucial for improving patient outcomes. The trial is designed to provide insights into which method may lead to better recovery rates and overall prognosis for these patients.
Why it matters
Potential benefit: If successful, this study could lead to improved treatment protocols for patients with basilar artery occlusion, potentially enhancing recovery outcomes.
How similar studies have gone: Previous studies have indicated the potential effectiveness of thrombectomy in similar populations, but this specific comparison of techniques is novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: Age ≥ 18 years * AIS with BAO on non-invasive imaging (CT or MRI) * Eligible for thrombectomy : groin puncture undergone within 24 hours of first symptoms or of last time the patient was seen normal * Being covered by a national health insurance * Informed consent obtained from the patients/his proxy or following an emergency procedure Exclusion Criteria: * Known or suspected pre-existing (chronic) large vessel stenosis / occlusion in the symptomatic territory (basilar artery) * Severe contrast medium allergy or absolute contraindication to use of iodinated products * Clinical history, past imaging or clinical judgment suggesting intracranial stenosis of the basilar artery * Pregnancy (urine or serum beta HCG test for women of child-bearing potential) * Person deprived of liberty * Patient benefiting from a legal protection (guardianship or curatorship)
Where it's running
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Chu Bordeaux
Bordeaux, France Recruiting -
Chru Nancy
Nancy, France Recruiting -
Fondation Adolphe de Rothschild
Paris, France Recruiting -
Hôpital FOCH
Suresnes, France Recruiting -
CHU Caen
Caen, France Not yet recruiting -
CHU Limoges
Limoges, France Not yet recruiting
Show 6 more locations
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CHU Montpellier
Montpellier, France Not yet recruiting -
Chu Nantes
Nantes, France Not yet recruiting -
APHP - Pitié Salpêtrière
Paris, France Not yet recruiting -
CHU de Reims
Reims, France Not yet recruiting -
CHU Rennes
Rennes, France Not yet recruiting -
CHU de Tours
Tours, France Not yet recruiting
Study contacts
- Principal investigator: Arturo CONSOLI — Study principal investigator
- Study coordinator: Arturo CONSOLI
- Email: a.consoli@hopital-foch.com
- Phone: 0033146251955
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Endovascular Therapy for Basilar Artery Occlusion With Large Ischemic Core
This trial tests whether adding endovascular therapy to standard medical care helps people with acute basilar artery occlusion and a large area of brain already affected.
-
Basilar artery occlusion with large brain infarct: real-world endovascular vs medical therapy
This registry follows adults with basilar artery occlusion and a large core infarct to see how endovascular therapy compares to medical management in routine care.
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Tenecteplase before transfer for basilar artery stroke 4.5–24 hours after symptom onset
This trial tests whether giving IV tenecteplase before transfer helps people with basilar artery occlusion who are 4.5–24 hours from symptom onset and are being sent for thrombectomy.
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Endovascular treatment for acute basilar artery stroke with a large infarct core
This trial will test whether adding endovascular clot removal to standard medical care helps adults with acute basilar artery occlusion who already have a large area of brain damage.
-
Rescue treatment for mild ischemic stroke with basilar artery blockage
This study is testing if combining a new type of treatment with standard care can help people with mild strokes caused by a blocked basilar artery feel better and recover more effectively.
-
Extending treatment options for stroke caused by basilar artery blockage
This study is testing if a new treatment called tenecteplase can help people who have had a stroke from a blocked basilar artery feel better and recover more effectively compared to standard care.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.