Actively Recruiting
A Study of Choydar Flow-Directed Mesh Stent in the Treatment of Unruptured Intracranial Aneurysms
Led by Johnson & Johnson Medical (Shanghai) Ltd. · Updated on 2026-05-13
200
Participants Needed
3
Research Sites
106 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The purpose of this study is to assess how safe choydar flow-directed mesh stent is and how well it works in the treatment of unruptured intracranial aneurysms (a condition in which a bulging blood vessel in the brain can burst and cause bleeding) in a real-world setting.
CONDITIONS
Official Title
A Study of Choydar Flow-Directed Mesh Stent in the Treatment of Unruptured Intracranial Aneurysms
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Presence of unruptured aneurysms in the internal carotid artery (petrous segment to distal end) or vertebral artery confirmed by angiography or imaging
- Aneurysm neck width ≥ 4 mm or dome-to-neck ratio < 2
- Parent artery diameter between 2.0 mm and 6.0 mm
- Participants and/or authorized representatives understand and agree to study participation and sign informed consent
- Clinical decision made to use the Choydar flow-directed mesh stent before enrollment
- Willingness and ability to return for all follow-up visits as required
- Presence of unruptured aneurysms with above criteria confirmed by digital subtraction angiography during the procedure
You will not qualify if you...
- Anatomy unsuitable for flow diverter placement or delivery (e.g., excessively tortuous or tiny vessels, stenosis in target vessel, incomplete stent deployment)
- Allergy to contrast media
- Allergy to nickel-titanium alloy or platinum-tungsten alloy
- Contraindication to antiplatelet or anticoagulant therapy
- Active bacterial infection
- Confirmed pregnancy
- Participation in another investigational clinical study that could affect study results (excluding observational or epidemiological studies)
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 3 locations
1
Guangdong Provincial People's Hospital
Guangzhou, China, 519041
Actively Recruiting
2
Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School
Nanjing, China, 210008
Actively Recruiting
3
The First Affiliated Hospital of Zhengzhou University
Zhengzhou, China, 450052
Actively Recruiting
Research Team
Y
Yuanyuan Gu
CONTACT
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
1
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