View clinical trials related to Atherosclerosis.
Filter by:Air pollution, microplastics and climate change pose serious public health risks. In recent years, air pollution has been associated with an increased risk of morbidity, all-cause mortality, cardio-respiratory-related mortality, and cancer. A growing body of evidence has recently confirmed a direct association between particulate matter with an aerodynamic diameter less than or equal to 2.5 mm (PM2.5), Ozone (O3) and aromatic polycyclic hydrocarbons with all-cause mortality irrespective of social context and geographic or economic disparities, suggesting a causal relationship between the two factors. The effects of air and environmental pollutants on public health have been observed also for short-term exposure to rapid increases in particulate matter. High PM 2.5 values have also been associated with a higher rate of atherosclerosis and coronary artery disease expressed by high calcium score values, with the elderly, male and diabetic patients being at greater risk. To date, however, the pathophysiological basis of the relationship between air pollutants, and long-term events remains speculative, and there is no evidence that can correlate the concentration of environmental pollutants directly with anatomical-pathological and/or biomolecular alterations. In this study the investigators will assess the presence and the burden of pollutants within the carotid plaques from patients undergoing carotid endarterectomy with pyrolysis-gas chromatography-mass spectrometry and electronic microscopy. Plaque stability will be explored trough molecular markers. Participants will be followed up for a composite of myocardial infarction, stroke, and all-cause mortality to evaluate whether the presence and the abundance of pollutants are associated with the development of the outcome through adjusted Cox regressions.
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 study will evaluate, in a controlled setting, the efficacy and safety of the intravascular lithotripsy using Shockwave™ M5+ Peripheral Intravascular Lithotripsy Catheter to facilitate delivery of aortic large-bore devices in iliac calcified access.
SEMA-VR is a prospective, randomized, 6-month long, open-label study of semaglutide. Approximately 100 participants with type 2 diabetes and/or obesity will be randomized (1:1) to receive semaglutide at escalating doses (up to 1.0 mg/week) or usual care without semaglutide for 6 months. The goal of this trial is to understand how semaglutide exerts cardio-protective effects in people with type 2 diabetes and/or obesity. The main question it aims to answer is: • Does semaglutide treatment preserve or increase the number of vessel-repairing cells circulating in the blood? Participants will: - Be allocated to receive either semaglutide or usual care for 6 months - Provide a blood sample at the baseline visit and another blood sample at the 6-month visit Researchers will compare participants receiving semaglutide to those receiving usual care for any differences in the 6-month change in the number of vessel-repairing cells in the blood.
This double-blind, randomized, crossover trial aims to test the hypothesis that longer-term indoor air filtration intervention can slow atherothrombosis progression by reducing indoor fine particulate matter (PM2.5) exposure in adults with ischemic heart disease history.
Estimate the impact of notifying both patients and their clinicians of the presence of incidental coronary artery calcium (CAC) on initiation of lipid-lowering therapy in patients with ASCVD who are not receiving lipid-lowering therapy.
The goal of this observational study is to identify new molecular and imaging markers associated with the presence of atherosclerosis and its progression in psoriasis. The main questions it aims to answer are: - To assess the prevalence, vascular distribution and burden of subclinical atherosclerosis in patients with psoriasis and its relationship with inflammatory biomarkers and cardiovascular (CV) risk algorithms using 2D vascular ultrasound (2DVUS) of carotid and femoral arteries, 3D vascular ultrasound (3DVUS) of carotid and femoral arteries and Coronary Computed Tomography Angiography (CCTA). - To characterize the composition of atherosclerotic plaques by CCTA and 3DVUS of the carotid and femoral arteries. - To evaluate the effect of different treatments used in psoriasis on the progression and characterisation of subclinical atherosclerosis in different arterial territories assessed by non-invasive imaging techniques. - To characterise the atherosclerosis process in patients with psoriasis using laboratory analysis and "-omics" technologies, as well as to evaluate changes at the molecular level after treatment of the skin disease. Participants will undergo 2 study visits: - At baseline, before starting biologic treatment for psoriasis. A 1-year follow up, after having completed one year under biologic treatment for psoriasis. - Both visits include a clinical interview, physical examination, fasting blood draw and assessment of atherosclerotic disease by non-invasive vascular imaging tests (2D/3DVUS and CCTA). - Participants may undergo an unscheduled clinical visit if the patient suffers a worsening of the psoriasis. This visit includes a clinical interview, physical examination and fasting blood draw.
The goal of this double-blind randomized controlled trial is to determine how treatment with high intensity statin, low-dose colchicine, and their combination modulates progression and composition of coronary atherosclerosis in individuals with high polygenic risk for coronary artery disease.
The goal of this observational study is to learn more about plaque biology in asymptomatic carotid artery stenosis (ACAS) patients through imaging. The main questions it aims to answer are: - To determine the ability of 64Cu-CANF-Comb positron emission tomography (PET) to risk stratify ACAS patients for stroke event, to include transient ischemic attack or remote ipsilateral intervention. - To further understand the role of Natriuretic Peptide Receptor C (NPRC) in the evolution of carotid atherosclerosis. Participants will be asked to undergo a carotid PET-magnetic resonance imaging (MRI) examination to assess whether the carotid atherosclerosis uptake of 64Cu-CANF-Comb as measured by PET-MRI correlates with patient outcomes (stroke, transient ischemic attack, or remote ipsilateral intervention).
The goal of this study is to understand and compare an alternative model of care in comparison to the usual model of care in include male and female participants ≥18 years of age with a history of ASCVD (hear and blood vessels diseases) or high-risk participants who have elevated bad cholesterol (LDL-C ≥1.8 mmol/L). The alternative model of care includes telephone support calls from a study nurse (after visits 1,2 and 4) and text messages to your mobile phone with healthy heart information. The main question it aims to answer is to understand and compare an alternative model of care in comparison to the usual model of care by evaluating the study participants bad cholesterol values after 180 and 365 days of the study. Each participant will take their medications as per usual care but may have the addition of Inclisiran, 284 mg 1.5 ml liquid in a single-use prefilled syringe for under skin administration. In accordance with the current medical practice guidelines for treating heart related conditions, Inclisiran and its product information will be made available for use in both care models. All the participants who decide to take part in this study will be requested to do the following: - Answer any questions from the study doctor or the study staff as accurately as possible when asked about changes in health status, medications, heart health, visits to other doctors or hospital admissions, planned surgery, even if they think none of these are related to the study. - Study doctor will be able to inform them of which medications you can and cannot take as part of this study. - To use mobile phone to receive text messages and/or questionnaires as proposed in the new model of care. - Advise the study doctor if they plan to move away from the geographical area where the study is being conducted during the study period. - Take the medications for cholesterol lowering treatment (such as a statin and/or ezetimibe) that are prescribed by the study doctor. - Tell the study doctor or study staff as soon as possible about suspected participant / participant partner pregnancy. - Tell the study doctor or study staff if they change their mind about taking part in the study. - Attend all the visits (screening visit, visits 1, 2, 3, 4 and visit 5). - Provide all the information that will enable the study team to contact them, i.e., inform the study staff if contact details change, provide contact details of a family member, etc.