View clinical trials related to Intracranial Atherosclerosis.
Filter by:The purpose of this study is to explore the mechanism of cognitive impairment in patients with symptomatic intracranial atherosclerotic stenosis (ICAS), and further plans to explore the impact of different treatment options on cognitive function in symptomatic ICAS patients.
Ischemic stroke with high incidence, mortality, disability and recurrence rate, has become the leading threat to the health worldwide. Intracranial atherosclerotic stenosis (ICAS) is commonly associated with ischemic stroke, especially in Chinese residents. Patients with severe ICAS are subject to a very high risk of recurrent stroke events, despite best medical therapy available. Unstable or complex atherosclerotic plaques can lead to plaque ruptures and distal embolisms, thereby increasing the risk of ischemic stroke recurrence. Studies have shown that activation of inflammatory states may play a driving role in the formation and development of atherosclerosis. So far, it remains unclear which are the best treatments for this condition, especially for high-risk patients. Dl-3-n-butylphthalide (NBP) is a Class I novel drug independently developed in China and was officially approved for use in acute ischemic stroke. Preclinical data showed that NBP can act multiple effects of anti-inflammation, antioxidation and anti-apoptosis by suppressing pro-inflammatory factors and upregulating the expression of anti-inflammatory factors. It is still undetermined whether combined therapy with NBP could enhance the curative effect of intracranial atherosclerosis. The primary purpose of this trial is to evaluate the efficacy of butylphthalide in reducing the degree of arterial stenosis and stabilizing plaques in patients with severe symptomatic middle cerebral artery stenosis.
This multicenter prospective cohort study aims to compare the difference in the effects of medical treatment within 1 year between the two groups of ICAS patients divided hemodynamically by Magnetic Resonance Fractional Flow Reserve. PC MRA will be applied for FFR measurement. The primary outcome is the composite of ischemic stroke or death related to the qualifying artery territory for 1 year.
The primary goal of the trial is to investigate whether the lipid lowering strategy using Alirocumab plus statin could cause more changes from baseline in intracranial atherosclerotic plaque and hemodynamic features during 6 months of follow-up, in patients with asymptomatic intracranial artery stenosis.
The goal of this clinical trial is to compare the safety and effectiveness of anticoagulation combined with antiplatelet therapy in acute ischemic stroke (AIS) patients with concomitant non-valvular atrial fibrillation (NVAF) and extracranial/intracranial artery stenosis. Participants will be 1:1 randomized into anticoagulation alone or anticoagulation combined with antiplatelet therapy. The primary endpoint is composite events 3 months after enrollment.
In the symptomatic ischemic stroke, the decision-making of medical treatment plus intracranial stenting (IS) has been more and more popular, especially in patients with intracranial large severe stenosis or occlusive artery. Nonetheless, there were few evidences evaluating the comprehensive information of the other self-expanding stent relating IS procedure after positive results of the Wingspan Stent System Post Market Surveillance (WEAVE) trial and Wingspan One Year Vascular Imaging Events and Neurologic Outcomes (WOVEN) study about Wingspan stent. The aim of our study was to investigate whether IS with Credo stent would improve the adverse events during 1-year follow-up.
Intracranial atherosclerotic disease is the most common cause of ischemic stroke in Asia, also in China. Currently, despite vascular recanalization therapy, statins are one of the main drug choices for treating atherosclerotic plaque. High resolution magnetic resonance imaging (HRMRI) can accurately assess the status of intracranial and extracranial arterial plaque, and has high consistency with histopathology. Thus, HRMRI technology has been widely used to monitor the efficacy of drug treatment for atherosclerotic plaque in clinical trials or practice. As a non-invasive technique, HRMRI make it possible to assess the morphologic characteristics of vascular wall and plaque composition of intracranial artery in vivo. It can quantitative analysis including components such as lipid-rich necrotic core, fiber cap thickness, intra-plaque hemorrhage, calcification, etc. Therefore, it is crucial for evaluating the etiology of ischemic stroke and developing secondary prevention strategies. At present, there is a lack of large-scale and prospective study to evaluate the etiology of ischemic stroke including cryptogenic stroke based on HRMRI. In this context, this study aims to establish a multi center HRMRI database of intracranial arteries among Chinese patients with ischemic stroke.
The purpose of this study is to verify the efficacy and safety of the Intracranial Stent (Tonbridge) in endovascular treatment of symptomatic intracranial atherosclerotic stenosis.
The primary goal of the clinical trial is to test the effect of oral rivaroxaban plus aspirin in patients with recent stroke/ transient ischemic attack (TIA) caused by intracranial artery stenosis. Participants will be divided into 2 groups to receive either oral rivaroxaban plus aspirin or oral clopidogrel plus aspirin. The main question it aims to answer is whether the experimental group (oral rivaroxaban plus aspirin) is superior to the control group ( oral clopidogrel plus aspirin) to lower recurrent stroke/TIA or death in these patients during 1 year of follow-up.
The aim of this study was to determine the diagnostic accuracy of MR-FFR to detect functionally significant ICAS comparing with pressure-wire-based FFR.