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Transient Ischemic Attack clinical trials

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NCT ID: NCT03470506 Active, not recruiting - Ischemic Stroke Clinical Trials

A Study of the Relationship of Gut Microbial Composition and Stroke Outcome

Start date: December 6, 2017
Study type: Observational

The purpose of this pilot study is to investigate the relationship between gut microbial composition and stroke outcome. If we can establish a relationship between gastrointestinal microbial community composition and convalescent ischemic stroke outcomes in a U.S. sample, such results would prompt further mechanistic studies, and ultimately provide a rationale for trials to determine whether modulating intestinal immune responses (e.g. via prebiotic, probiotic, or fecal transfer methods) would be beneficial.

NCT ID: NCT03439813 Recruiting - Stroke Clinical Trials

Treating Anxiety After Stroke (TASK)

Start date: January 17, 2018
Phase: N/A
Study type: Interventional

The TASK (Treating Anxiety after StroKe) trial is a feasibility randomized controlled trial. It aims to evaluate the feasibility of i) web-enabled trial procedures, and ii) the TASK intervention in stroke and TIA patients

NCT ID: NCT03417063 Recruiting - Ischemic Stroke Clinical Trials

Intracranial Artery Stenosis Magnetic Resonance Imaging: Aetiology and Progression

Start date: October 14, 2017
Phase: N/A
Study type: Observational [Patient Registry]

Stroke has become the leading cause of death in China. It has been shown that intracranial artery stenosis (ICAS) plays a key role in Chinese stroke patients. Although most of stenotic diseases in intracranial arteries are atherosclerotic, a substantial number of other vascular diseases, such as dissection, arteritis, moyamoya disease, and reversible cerebral vasoconstriction syndrome (RCVS), can also lead to intracranial artery luminal narrowing. It is challenging to differentiate the etiologies of ICAS relying on measuring luminal narrowing by angiographical approaches. In addition, the progression of intracranial atherosclerotic disease (ICAD) has been demonstrated to be highly associated with the risk of ischemic cerebrovascular events. However, the influence factors for ICAD progression remains unclear. High-resolution magnetic resonance imaging (HR-MRI) has been widely used to assess ICAS diseases. The different etiologies of ICAS are differentiable by MR-MRI according to the features of location, shape, signal pattern, remodeling, and contrast enhancement. Investigators have proved that HR-MRI is a reproducible technique that may be reliably utilized to monitor the changes of ICAD during natural follow-up or medical treatment. The ICASMAP (Intracranial Artery Stenosis MR Imaging: Aetiology and Progression) is a prospective, cross-sectional, observational, and multicenter study. The objectives of ICASMAP are to determine: 1) the spectrum of etiology of ICAS in stroke patients; and 2) the influence factors for progression of ICAD. A total of 300 patients with symptomatic stenotic disease in intracranial arteries (stenosis range: 30%-99%) will be recruited within two weeks after symptom onset from 18 different hospitals across Beijing-Tianjin-Hebei region in China within 1 year. All the patients will undergo HR-MRI for intracranial arteries at baseline, one-year, and two-years. The clinical risk factors will be collected and blood draw will be conducted. The ICASMAP study may help to improve the precise diagnosis and intervention of ICAS and stroke prevention.

NCT ID: NCT03380481 Recruiting - Stroke Clinical Trials

SouthErn China REgisTry for Stroke on Traditional Chinese Medicine

Start date: January 15, 2018
Phase: N/A
Study type: Observational [Patient Registry]

Stroke is the first most common cause of death in China and one of the major causes of functional disability in the adult population.The burden of stoke is significantly increased in China in recent years. In order to investigate the prognosis of stroke, with diagnostic and treatment information of traditional Chinese medicine (TCM), and assess the effectiveness and safety of TCM for stroke in southern China, the investigators will conduct this multicenter prospective registry study in southern China. This study will recruit 10,000 consecutive eligible patients with acute stroke from more than 50 hospitals. 24 months follow-up will be carried out on-site in hospitals and by telephone to track endpoint (including all-cause mortality, composite cerebrovascular and cardiovascular events at one and two year follow up, and neurological and functional assessments).

NCT ID: NCT03329365 Not yet recruiting - Clinical trials for Transient Ischemic Attack

Paroxysmal Nocturnal Hemoglobinuria in ESUS & ETUS

Start date: January 2018
Phase: N/A
Study type: Observational

Paroxysmal nocturnal hemoglobinuria (PNH) is a rare acquired clonal hematological disorder, which can cause arterial or venous thrombosis. The frequency of PNH in young patients (< 50 years old) with embolic stroke (ESUS), transient ischemic attack (ETUS) or superior sagittal sinus cerebral venous thrombosis (SSS-CVTUS) of undetermined source, is currently unknown. This study proposes to recruit ESUS, ETUS, SSS-CVTUS patients to determine the frequency of PNH diagnosis confirmed by flow cytometry in these patient populations.

NCT ID: NCT03281590 Recruiting - Stroke Clinical Trials

Stroke and Cerebrovascular Diseases Registry

Start date: September 6, 2017
Phase: N/A
Study type: Observational [Patient Registry]

This is a single institutional registry database for the patients with stroke and cerebrovascular diseases. Stroke is the fifth leading cause of death in the United States. Despite extensive research, most of the patients die or suffer from varying degree of post-stroke disabilities due to neurologic deficits. This registry aims to understand the disease and examine the disease dynamics in the local community.

NCT ID: NCT03275155 Recruiting - Atrial Fibrillation Clinical Trials

Pathophysiology and Risk of Atrial Fibrillation Detected After Ischemic Stroke

Start date: April 18, 2017
Phase: N/A
Study type: Observational

This prospective non-interventional cohort study investigates the pathophysiology of Atrial Fibrillation Detected After Stroke or transient ischemic attack (AFDAS) by comparing the autonomic function and inflammation between patients with AFDAS, patients with atrial fibrillation (AF) diagnosed before the ischemic event or known AF (KAF), and patients with normal sinus rhythm (NSR) after 14 day of cardiac monitoring following the event onset.

NCT ID: NCT03244215 Recruiting - Clinical trials for Transient Ischemic Attack

The Recurrence Study

Start date: February 17, 2016
Phase: N/A
Study type: Interventional

The primarily goal of the research is to better understand progression of disease in patients who present with an acute stroke to the Hamad General Hospital (HGH) stroke and Transient Ischemic Attack (TIA) clinic. The investigators are specifically interested in patients who have diabetes and have a stroke. The patients enrolled into the research will have detailed clinical evaluation and their imaging studies (MRI and Doppler) will be reviewed. After informed consent, subjects will be examined in the stroke Ward /TIA clinic upon recruitment, and later at less than 48 hours of recruitment (blood extraction and urine samples) and for follow up visits at 1 month+/-7 days (clinical evaluation and to extract blood and urine samples), at 3 months (telephonic conversation only) and at 1 year (clinical and repeat MRI brain). During the initial visit at the ward the investigators will collect serum and plasma for proteomic and metabolomic studies. These will be repeated at less than 48 hours and at 1 month+/-7 days. Investigators will test the effects of risk factors such as diabetes/stroke on the endothelial procoagulant and inflammatory state at onset and evaluate if best medical control leads to improvement in such markers.The repeated studies will determine if better management and presence of certain blood biomarkers can predict or translate to slower progression of disease and correlate it with clinical status.

NCT ID: NCT03231293 Recruiting - Hypertension Clinical Trials

Fimasartan Blood Pressure Lowering After Acute Stroke

Start date: July 28, 2016
Phase: N/A
Study type: Observational

This study evaluates the effectiveness of fimasartan-based antihypertensive treatment and prognosis in post-acute phase of ischemic stroke or transient ischemic attack patients. All participants will receive fimasartan, and the investigators will follow them up for 6 months.

NCT ID: NCT03153020 Not yet recruiting - Stroke Clinical Trials

Determinants of Adherence to Post-stroke/Transient Ischemic Attack Secondary Prevention Treatment: Cohort Study in the Rhône

Start date: July 2017
Phase: N/A
Study type: Observational

The effectiveness of emergency management of acute ischemic stroke has improved considerably in recent years with thrombolysis and more recently thrombectomy. This improvement is accompanied by an increase in the number of stroke survivors. One of the major issues for these ever-increasing survivors is the prevention of recurrence. According to data from the 3 French registries, more than 20% of patients have at least one recurrence. Secondary prevention treatment has demonstrated his efficacy to prevent stroke recurrence. This evolution justifies identifying factors associated with adherence to secondary prevention treatment, measured at 1 year post-stroke / transient ischemic attack (TIA), in patients included in the STROKE 69 cohort.