Genotype Guided Antiplatelet Therapy In Ischemic Stroke
Ischemic StrokeTransient Ischemic AttackA fifth of ischemic stroke or transient ischemic attack (TIA) patients will have recurrent events within the first 3 months [Refs 1-3] despite aggressive medical therapy with antiplatelets and risk factor control. Clopidogrel is one of the mainstays of antiplatelet secondary prevention therapy in patients with ischemic stroke. CYP2C19 loss of function (LOF) mutations impair the effectiveness of clopidogrel [Ref 4]. The prevalence of LOF mutations is approximately 60% in the local population [Ref 5], rendering the effectiveness of empiric clopidogrel treatment doubtful. For patients who have LOF mutations, other treatment options for secondary prevention of ischemic stroke need to be tested. This study aims to determine the feasibility and clinical impact of genetic testing guided antiplatelet therapy in ischemic stroke patients on the prevention of major adverse cardiovascular or cerebrovascular events. Clopidogrel naive ischemic stroke or TIA patients aged 21 years and above will be randomised to genetic testing guided antiplatelet therapy or standard medical therapy within 7 days of their index event. Patients allocated to testing group will have blood sample drawn for diagnosis of CYP2C19 LOF mutations. Patients who test positive for an LOF mutation (intermediate and poor metabolisers) will be offered alternative antiplatelet therapy in the form of aspirn (for those who need monotherapy) or aspirin plus ticagrelor or dipyridamole (for those who need dual antiplatelet therapy) to be decided by the managing physician. Patients who test negative for LOF mutation will continue on clopidogrel. Platelet reactivity index (enables the identification of patients with an inadequate response to antiplatelet agents) will be measured at baseline.
Liraglutide in Acute Minor Ischemic Stroke or High-risk Transient Ischemic Attack Patients With...
Ischemic StrokeTransient Ischemic Attack1 moreThe purpose of this study is to assess the safety and efficacy of glucagon-like peptide-1 (GLP-1) analogue liraglutide in the treatment of acute minor stroke (National Institute of Health stroke scale, NIHSS ≤ 3) or high-risk transient ischemic attack (TIA) (ABCD2 score ≥ 4 ) patients with type 2 diabetes mellitus.
A Study to Test Asundexian to Prevent a Clot-related Stroke in Participants After an Acute Ischemic...
Prevention of Ischemic StrokeAcute Non-cardioembolic Ischemic Stroke1 moreResearchers are looking for a better way to prevent an ischemic stroke which occurs when a blood clot travelled to the brain in people who within the last 72 hours had: an acute stroke due to a blood clot that formed outside the heart (acute non-cardioembolic ischemic stroke), or TIA/mini-stroke with a high risk of turning into a stroke (high-risk transient ischemic attack), and who are planned to receive standard of care therapy. Acute ischemic strokes or TIA/mini-stroke result from a blocked or reduced blood flow to a part of the brain. They are caused by blood clots that travel to the brain and block the vessels that supply it. If these blood clots form elsewhere than in the heart, the stroke is called non-cardioembolic. People who already had a non-cardioembolic stroke are more likely to have another stroke. This is why they are treated preventively with an antiplatelet therapy, the current standard of care. Antiplatelet medicines prevent platelets, components of blood clotting, from clumping together. Anticoagulants are another type of medicine that prevents blood clots from forming by interfering with a process known as coagulation (or blood clotting). The study treatment asundexian is a new type of anticoagulant currently under development to provide further treatment options. Asundexian aims to further improve the standard of care without increasing the risk of bleeding. The main purpose of this study is to learn whether asundexian works better than placebo at reducing ischemic strokes in participants who recently had a non-cardioembolic ischemic stroke or TIA/mini-stroke when given in addition to standard antiplatelet therapy. A placebo is a treatment that looks like a medicine but does not have any medicine in it. Another aim is to compare the occurrence of major bleeding events during the study between the asundexian and the placebo group. Major bleedings have a serious or even life-threatening impact on a person's health. Dependent on the treatment group, the participants will either take asundexian or placebo as tablets once a day for at least 3 months up to 31 months. Approximately every 3 months during the treatment period, either a phone call or a visit to the study site is scheduled on an alternating basis. In addition, one visit before and up to two visits after the treatment period are planned. During the study, the study team will: Check vital signs such as blood pressure and heart rate Examine the participants' heart health using an electrocardiogram (ECG) Take blood samples Ask the participants questions about how they are feeling and what adverse events they are having. An adverse event is any medical problem that a participant has during a study. Doctors keep track of all adverse events that happen in studies, even if they do not think the adverse events might be related to the study treatments. In addition, the participants will be asked to complete a questionnaire on quality of life at certain time points during the study.
Exercise and Brain Health
StrokeCardiovascular Risk Factors1 moreThe risk of stroke and vascular dementia is high in individuals who have had a prior stroke or TIA, and in those who have vascular disease risk factors, such as high blood pressure, abnormal cholesterol, diabetes or pre-diabetes. These vascular risk factors can improve with exercise. This study will examine the impact of a 6 month, low intensity group exercise class on fitness, walking, balance, and brain health. This study will also collect fitness, walking, balance, and brain health outcome measures at baseline and post all other MERCE exercise and robotics interventions.
Reducing Stroke Risk in African-American Men
StrokeTransient Ischemic AttackThe project is a 6-month prospective Randomized Controlled Trial evaluating the effects of TargEted MAnageMent Intervention (TEAM, N=80) vs. wait-list (WL, N=80) control in African American men who have experienced a stroke or TIA within the past 5 years.
the Research of the Cerebral Protection Effects of Electroencephalogram (SedLine) During Carotid...
Transient Ischemic AttackAcute Stroke2 moreFragile brain is the most common phenomenon seen in the patients undergoing CEA. The patients with fragile brain have a high incidence of postoperative brain dysfunction. This study intends to apply EEG monitoring (Sedline) to CEA to investigate whether EEG monitoring can reduce the incidence of postoperative neurological complications in CEA patients and improve their prognosis. 220 patients with CEA were randomly divided into 2 groups. Group S [Sedline monitoring + Transcranial Doppler (TCD) + regional cerebral oxygen saturation (rS02),n=110] and group C [Bispectral index (BIS)/Sedline monitoring + TCD +rSO2,n=110], recording intraoperative and postoperative conditions, neuropsychology scale assessment, blood examination and imaging examination. The incidence of postoperative neurological complications was compared between the two groups.
A Study of Milvexian in Participants After an Acute Ischemic Stroke or High-Risk Transient Ischemic...
Ischemic Stroke; Ischemic AttackTransientThe purpose of this study is to evaluate whether milvexian compared to placebo reduce the risk of recurrent ischemic stroke.
Computer Scan Based Analysing System on Improving Stroke Management Quality Evaluation
Acute Ischemic Stroke and Transient Ischemic AttacksStudy is designed for two parts, a perspective, multi-center, historial control study and a randomized controlled study of acute ischemic stroke patients. For achieving the target of diagnosis and treatment KPI (Key performance indicator) of AIS patients and improving the defects of the traditional working mode, our center developed the medical records data acquisition and KPI statistics system based on computer scan. This method guarantees the authenticity of the data, It computes the KPI of the corresponding medical institutions in the corresponding period and gives feedback on a regular basis. Based on the KPI feedback system, a multifaceted quality improvement intervention is conducted in the intervention group hospitals. This study aims to explore whether this new working mode can continuously improve the overall KPI in Zhejiang province, and thus reflect the improvement of quality and standardization of medical service in AIS patients.
Colchicine in High-risk Patients With Acute Minor-to-moderate Ischemic Stroke or Transient Ischemic...
Ischemic StrokeTIAThis study is a multicentre, randomized, double-blind, placebo-controlled, investigator-sponsored study that aims to investigate the efficacy of colchicine in preventing recurrent stroke in the patients with acute minor-to-moderate ischemic stroke or TIA and a hsCRP level of ≥2mg/L.
Stroke School -Including Physical Exercise, Patient Education and Individual Follow-up Sessions...
Minor StrokeNon-disabling Stroke1 moreIn a randomized controlled trial the effect of 12 weeks of cross-sectorial physical exercise combined with patient education and individual follow-up session is investigated in patients with minor stroke or non-disabling stroke.