Evaluation of the Ton-bridge Carotid Stent for Carotid Artery Stenosis

NCT ID: NCT06365697

Last Updated: 2026-01-02

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 188 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-04-24
• Study Completion Date: 2026-10-31

Brief Summary

The purpose of this trial is to evaluate effectiveness and safety of the Ton-bridge carotid stent for the treatment of carotid artery stenosis.

Detailed Description

This is a prospective, multicenter, open-label, non-inferiority, randomized controlled trial carried out in 7 research centers in China. Patients with carotid atherosclerotic stenosis will be randomized (1:1) to either the Ton-bridge carotid stent or WALLSTENT carotid stent for treatment. The purpose of this clinical trial is to evaluate the effectiveness and safety of a novel carotid stent, the Ton-bridge carotid stent, in humans for treatment.

Conditions

Carotid Artery Stenosis

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

experimental group

Carotid artery stenting with the experimental device

Group Type: EXPERIMENTAL

Ton-bridge carotid stent

Intervention Type: DEVICE

carotid artery stenting with Ton-bridge carotid stent

control group

Carotid artery stenting with the control device

Group Type: ACTIVE_COMPARATOR

WALLSTENT carotid stent

Intervention Type: DEVICE

carotid artery stenting with WALLSTENT carotid stent

Interventions

Ton-bridge carotid stent

carotid artery stenting with Ton-bridge carotid stent

Intervention Type: DEVICE

WALLSTENT carotid stent

carotid artery stenting with WALLSTENT carotid stent

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Patient is 18-80 years old and of any sex;
• Patient is diagnosed with carotid atherosclerotic stenosis by imaging. The lesion site is located in the extracranial segment of carotid artery and is suitable for endovascular treatment. Patient is either symptomatic with carotid stenosis≥50% or asymptomatic with carotid stenosis≥70% as determined by digital subtraction angiography (DSA) using NASCET methodology.

• Symptomatic is defined as non-disabling ischemic stroke (mRS≤2) or transient cerebral ischemia (TIA, including cerebral hemispheric neurological events and amaurosis fugax) associated with the carotid stenosis within the past 6 months.
• The target vessel reference diameter ranges from 3.5mm to 9mm.
• Patient has been informed of the nature of this trial, understood the purpose of this clinical investigation, and volunteered to participate and sign the informed consent form.

Exclusion Criteria

• Evolving stroke within 3 months before index procedure, disabling stroke (mRS≥3) before the procedure, or massive cerebral infarction (area of infarction is >1/3 of the ipsilateral middle cerebral artery territory) within 30 days before the procedure.
• Myocardial infarction within 30 days prior to index procedure.
• Severe heart, lung, liver, or renal insufficiency.
• Patient has known bleeding diathesis, or contraindication to heparin or antiplatelet therapy.
• Patient has a known allergy to contrast media or nickel-titanium material.
• Disturbance of consciousness, dementia, or severe neurological deficits (NIHSS≥15 or mRS≥3)
• Severe hypertension (Systolic blood pressure≥180mmHg and/or diastolic blood pressure≥110mmHg) difficult to be controlled.
• Patient has known risk factors for embolization.
• Patient has had any major surgical procedure (i.e., intraabdominal or intrathoracic surgery, any surgery or interventional procedure involving cardiac, cerebral or vascular system) within 30 days before index procedure.
• Patient has had any intracranial surgery or intracranial hemorrhage within 1 year before index procedure.
• Patient has other known neurological diseases such as intracranial tumor, which may confound the neurological assessments.
• Intracranial aneurysm or arteriovenous malformation, which requires treatment.
• Patient has other known vascular lesion requiring intervention at the same time or within 30 days after index procedure.
• Patient has other carotid diseases such as vasculitis, carotid dissection, carotid aneurysm and fibromuscular dysplasia.
• Ipsilateral intracranial artery severe stenosis (≥70%), occlusion or dissection; stenosis(≥50%) or occlusion of ipsilateral common carotid artery opening or brachiocephalic artery; any previously placed stent in the ipsilateral carotid artery or brachiocephalic artery; the target lesion is a restenosis after a previous carotid endarterectomy (CEA).
• The target lesion vessel has intraluminal filling defect, thrombosis, occlusion or subtotal occlusion ("string sign").
• Severe tortuous anatomy or other anatomic factors that prohibit the safe placement of the catheter or stent systems.
• Pregnant or lactating female.
• Patient is participating in an investigational drug or device study where the primary endpoint has not yet been completed or that will clinically interfere with the endpoint of this investigation.
• Other circumstances which the investigator considers unsuitable for participating in this investigation.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Ton-Bridge Medical Tech. Co., Ltd

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Liqun Jiao

Role: PRINCIPAL_INVESTIGATOR

Central Hospital Affiliated to Shangdong First Medical University

Yong Zhang

Role: PRINCIPAL_INVESTIGATOR

The Affiliated Hospital of Qingdao University

Locations

The People's Hospital of Liaoning Province

Shenyang, Liaoning, China

Linyi People's Hospital

Linyi, Shandong, China

Qingdao Central Hospital

Qingdao, Shandong, China

The Affiliated Hospital of Qingdao University

Qingdao, Shandong, China

Central Hospital Affiliated to Shangdong First Medical University

Jinan, Shangdong, China

Lishui Central Hospital

Lishui, Zhejiang, China

Xuanwu Hospital, Capital Medical University

Beijing, , China

Countries

China

Other Identifiers

ZHTQ202301

Identifier Type: -

Identifier Source: org_study_id