Thrombotic disease

This study tests a new procedure for people with a completely blocked main portal vein who have had at least two episodes of dangerous variceal bleeding. Doctors will use ultrasound to guide a needle into a vein in the gut, then try to reopen the blocked vein or create a new bypa…

This study tests whether patients with a heart pump (LVAD) can safely stop taking aspirin while continuing warfarin. The goal is to reduce bleeding problems without increasing dangerous clots. About 370 participants will be randomly assigned to receive either aspirin or a placebo…

This large phase 3 trial tests an experimental drug, REGN7508, against the standard blood thinner apixaban for preventing strokes in people with atrial fibrillation (an irregular heartbeat). The study will enroll over 15,000 participants to compare how well each drug prevents str…

This study tests whether using a patient's genetic information to choose anti-platelet drugs can lower bleeding risks compared to standard care. About 1,760 high-risk patients receiving a heart stent will be assigned to either a personalized drug plan or usual therapy. The goal i…

This study tests whether the blood thinner rivaroxaban can safely improve outcomes in people with liver cirrhosis who have both a blood clot in the portal vein and a high risk of variceal bleeding. About 175 participants will receive rivaroxaban or standard care starting 48 hours…

This small pilot study will test a program where nurses and general practitioners help breast cancer survivors who also have heart disease make healthy lifestyle changes. The program includes exercise, diet changes, quitting smoking, and stress-reducing activities like yoga. The …

This study tests whether the drug vericiguat can prevent serious heart and organ problems in people undergoing heart surgery. About 600 high-risk patients will receive either vericiguat plus standard care or standard care alone. The goal is to see if vericiguat reduces early comp…

This study tests a needle-free connector with anti-reflux technology, a special stopper that prevents blood from flowing back into IV catheters. The goal is to see if it reduces complications like blockages, infections, and pain compared to standard connectors. The trial will inv…

This study tests a new method for closing the breastbone after coronary artery bypass graft (CABG) surgery using special knotless barbed sutures and a skin adhesive. Researchers will compare 401 adults who receive this new closure to past patients who had standard closure. The go…

This study compares two blood thinners—apixaban (Eliquis) and warfarin (Coumadin)—in 460 people with advanced heart failure who have a HeartMate 3 heart pump. The goal is to see which drug better prevents strokes, pump clots, and serious bleeding. Participants must have had their…

This pilot study looks at people with a blood clot in the heart (left ventricular thrombus) who have been on blood thinners for at least 3 months. Half will stop their medication and half will continue, to see which approach is safer. The goal is to find the best treatment durati…

This study tests whether a special clinic where heart, kidney, diabetes, and liver doctors work together can help people with type 2 diabetes and heart disease get better control of their blood pressure and cholesterol. About 150 adults will be randomly assigned to either usual c…

This study tests a community-based exercise program for people aged 50 and older who have at least two chronic conditions, such as heart disease, diabetes, arthritis, or obesity. The program is designed to improve muscle strength, heart and lung fitness, and overall well-being. R…

This study tests whether taking vitamin B supplements before and after heart surgery can lower the chance of serious problems like heart attack, stroke, or irregular heartbeat. About 1,000 adults having heart surgery will take either vitamin B or a placebo daily for 6 months afte…

This study will compare aspirin tablets to daily injections of low molecular weight heparin (LMWH) for preventing dangerous blood clots in people who break their hip. Over 21,000 patients aged 60 and older across 96 UK hospitals will take part. Hospitals will switch between the t…

This study looks at whether a medical-grade smartwatch (CardioWatch 287-2) can improve a 13-week virtual cardiac rehab program for people with heart disease. About 216 participants will either use the watch or not, and researchers will compare their progress in areas like exercis…

This study tests Mobili®, a portable digital dispenser that automatically gives the right pills at the right time. Researchers will enroll 96 adults with diabetes or heart disease who take at least two daily medications. Participants use the device for a period, and the study mea…

This study tests a new radioactive tracer called 18F-FAPI-74 that may help detect scar tissue (fibrosis) in the heart and lungs earlier than current methods. Researchers will compare this new PET/CT scan to standard imaging in 210 adults with conditions like lung disease or heart…

This study compares two ways to diagnose bleeding problems during surgery: a quick bedside test (viscoelastic test) and standard lab tests. The goal is to see which method gives faster results, helping doctors treat bleeding sooner. About 210 adults having high-risk surgeries (li…

This Phase 2 trial tests whether a single dose of gruticibart, a monoclonal antibody, can prevent blood clots that often form when a central venous catheter is placed. About 90 adults getting a catheter will receive either the drug or a placebo. The goal is to see if gruticibart …

This pilot study explores whether non-drug strategies like virtual reality or relaxing soundscapes can reduce anxiety and pain in adults undergoing scheduled coronary angiography or angioplasty. Participants will be assigned to listen to calming sounds, experience a virtual reali…

This study tests whether low-intensity focused ultrasound (LIFU) applied to a nerve cluster in the neck can improve sleep quality and heart rate control in people recovering from heart surgery. 200 participants will receive either real or sham ultrasound daily for 3-7 days after …

This study looks at whether a supplement called Neurofast® can help people who have both anxiety and heart problems. 80 adults aged 18-70 will take the supplement or no extra treatment for 12 weeks. Researchers will measure changes in anxiety, heart rate, and blood pressure.

This study tests whether adding a short, guided mindfulness meditation session to standard cardiac rehabilitation can help heart patients feel better and control their blood pressure. Eighty adults with heart disease will be split into two groups: one gets standard rehab plus med…

This study will compare cannabis, opioids, and two non-drug therapies (MIRE and TENS) in 1,000 people with chronic pain or circulatory disorders. The goal is to find safer, less addictive pain relief options. Researchers will measure changes in pain and nerve function using objec…

This study uses advanced 4D MRI scans to measure blood flow and heart function in adults with heart disease or cancer. Researchers aim to see if these detailed images can help predict how these diseases will progress. The study involves 1,000 participants who are already schedule…

This study looks at how well platelets work in patients on a life-support machine called ECMO, which helps people with severe lung or heart problems. The goal is to understand why these patients often have dangerous bleeding. Researchers will measure platelet function over time a…

This study will interview 15 people from ethnic minority backgrounds in the UK who have heart disease. The goal is to understand their views on the diet and lifestyle advice they get from doctors, and whether it fits their cultural and religious customs. Researchers hope to learn…

This study looks at whether a hospital rehab and prosthetic training program helps people who lost a leg due to diabetes or blood vessel disease use their artificial limb regularly. Researchers will review past patient records and follow new patients for up to 6 months after they…

This study tests whether it is possible to run a larger trial comparing two ways of using a breathing machine (ventilator) in critically ill heart patients who need help breathing. The two modes are volume-controlled (delivers a set amount of air each breath) and pressure-control…

This observational study at a French hospital will ask 20 heart rehab patients and their care teams about what stops them from getting or offering psychological and social support. The goal is to understand these barriers so that hospitals can better help patients return to work …

This study aims to find out how often hospitalized patients develop blood clots related to common catheters (PICC, FICC, CICC, and midline). Researchers will use ultrasound to check 500 adults who have had a catheter for at least 7 days. The goal is to better understand how many …

This study aims to see if a quicker MRI scan can produce images of blood vessel walls that are just as good as the standard, longer scan. Researchers will enroll 15 adults who already need a vessel wall MRI as part of their care. The faster scan will be compared to the regular on…

This observational study will track 87 people who are already scheduled to receive treatment with the Recana Thrombectomy Catheter System for blocked veins in their legs. The goal is to see how safe the device is and how well it works at clearing the blockages during the procedur…

This pilot study will test whether a women-focused education program, called Cardiac College for Women, helps women with heart disease learn more about their condition and feel better. About 50 women in cardiac rehab across Canada will either get the program plus usual care or us…

This study will look at how consistently nearly 6,000 adults in Italy take three newer cholesterol-lowering drugs (inclisiran, evolocumab, and alirocumab) over the long term. Researchers will analyze prescription records to measure adherence and persistence in everyday medical pr…

This study will look at 800 patients who had aortic surgery to understand why some develop dangerous blood clots inside the repaired artery. Researchers want to find out how common these clots are, what puts patients at risk, and how they affect recovery. The goal is to improve c…

This study will test new MRI methods to find early signs of heart disease in 1000 adults. Researchers want to see if these scans can detect tiny changes in heart muscle before standard tests do. Participants will have MRI scans and blood work, but no treatment is given. The goal …

This study will measure normal blood clotting values in 240 children under 18 who are having surgery or a procedure with anesthesia. The goal is to establish reference ranges for the Quantra system, a device that checks how well blood clots. This information will help doctors bet…

This study will follow about 2,500 adults with liver cirrhosis to learn who gets dangerous blood clots in the liver's main vein, how these clots affect survival, and whether blood-thinner medications are safe and helpful. Participants receive no experimental treatment—just routin…

This study looks at whether certain natural markers on red blood cells, called Lewis antigens, are more common in people who have had blood clots in their veins. Researchers will test 100 adults with a history of deep vein thrombosis and record their other clot risk factors. The …

This large registry study will follow over 2,700 postmenopausal women aged 45-75 who use newer forms of hormone replacement therapy (creams, gels, sprays). The goal is to see if these modern delivery methods lower the risk of heart attacks, strokes, and other cardiovascular event…

This study looks at blood clots removed from 500 stroke patients to understand their composition and how they relate to blood markers, treatment success, and patient recovery. The goal is to learn more about stroke causes and find new ways to dissolve clots. Participants are adul…

This study follows 700 cancer patients who take blood thinners and are scheduled for surgery or medical procedures. Researchers will track how often major bleeding or clotting events occur within 30 days after the procedure. The goal is to see if current blood thinner management …

This study will follow 4,000 intensive care patients aged 80 and older to see how chronic and acute heart conditions impact their survival, daily function, and quality of life. Researchers will use simple tests to measure frailty and independence. The goal is to help doctors bett…

This study will collect blood samples from 30,000 adults in the UK with various health conditions, including blood clots, infections, heart disease, diabetes, and more. The samples will be used to develop and fine-tune new diagnostic tests for the cobas® lumira device, which allo…

This study looks back at the medical records of 50 adult ICU patients with COVID-19 who needed a life-support machine called ECMO. The goal is to understand how often bleeding and dangerous blood clots happen, and how blood transfusions and blood thinners affect their care. The f…

This study looks at how artificial sweeteners (saccharin, sucralose) and a natural one (erythritol) affect blood sugar control, blood clotting, and heart disease risk in 80 adults with prediabetes. Participants will be randomly assigned to take one sweetener or water for two week…

This study looks at 22 children with congenital heart disease who are getting a blood thinner called heparin. Doctors want to see if taking blood from a central line (a special IV) gives the same results as taking blood from an artery. They will compare three different ways of dr…

This study will follow 500 Beijing residents aged 60 and older to see how urinary function (like bladder and kidney health) relates to the development of multiple chronic conditions such as diabetes, heart disease, and Alzheimer's. Participants will have regular health checks, bl…

This study will ask 380 heart patients and healthcare workers at Assiut University Heart Hospital to fill out questionnaires about depression, anxiety, stress, and burnout. No treatments or changes are given—the goal is simply to find out how common these mental health problems a…

This study aims to understand why some people's coronary artery disease gets worse quickly while others' stays stable. Researchers will compare medical history, lab results, and imaging from 52 patients—34 with rapidly progressive disease and 18 with non-rapidly progressive disea…

This study will test whether an artificial intelligence (AI) system can detect pulmonary hypertension and other heart diseases using a smart stethoscope. Researchers will collect heart sound and ECG recordings from 1,000 adults already scheduled for routine echocardiography. The …

This study looks at how sleep disorders and problems with the body's automatic functions (like heart rate control) are linked in elderly people with heart disease. Researchers will study 210 patients aged 65 and older to find out how common sleep issues are and how they affect he…