Congenital anomaly of the great arteries

This study tests whether the Butantan-Dengue vaccine is safe and works well in people aged 12–59 with autoimmune rheumatic diseases (like rheumatoid arthritis or lupus) who are stable on low or no immune-suppressing drugs. Participants receive one vaccine dose and are monitored f…

This study tests two types of branch endografts (Zenith t-Branch and Terumo Arch Branch) to treat aortic aneurysms in the chest and abdomen. The devices are placed inside the aorta to reinforce the weakened vessel wall and keep blood flowing to vital organs. Researchers will trac…

This study tests whether giving two steroids (hydrocortisone and fludrocortisone) to high-risk patients before heart surgery can lower the chance of serious complications like kidney injury and lung problems. The trial will include 196 adults with a EuroSCORE II above 4% who are …

This small pilot study is testing whether giving a second treatment with the Nectero EAST system is safe and helpful for people with abdominal aortic aneurysms (a bulging blood vessel in the belly). Ten adults who already had one treatment will get a repeat procedure. The goal is…

This study is testing a device called a valved graft, which replaces both the aortic valve and the ascending aorta in one surgery. It includes 260 people with aortic valve disease, an enlarged aorta, or aortic dissection. The goal is to see how safe and effective the device is by…

This study looks at whether people with Takayasu arteritis, a rare blood vessel disease, can safely stop taking biologic medications after being in remission for a long time. About 40 participants who have been on biologics for at least 3 years and have no active disease will slo…

This study is testing a less invasive treatment for a serious tear in the main artery near the heart, specifically for people who are too high-risk for open-heart surgery. About 149 participants will receive a stent placed through a blood vessel to repair the tear. Researchers wi…

This study compares performing heart surgery on newborns with complex congenital heart disease either before or after 7 days of age. Researchers will track which timing leads to fewer deaths and better recovery. The trial involves 738 babies across multiple hospitals in China.

This study tests whether two drugs—bosentan and dapagliflozin—can improve blood vessel function in people with large vessel vasculitis, a condition that damages arteries and raises the risk of heart attacks and strokes. Sixty adults with stable disease will take both drugs for 6 …

This study is for babies, infants, and small children who have narrowed arteries in or near the heart. Doctors will use a special tiny stent to open the blockage and improve blood flow. The goal is to see how well the stent works and to track any side effects in everyday medical …

This study tests a new surgical technique called B-SAFER for people with complex aortic disease affecting multiple segments of the aorta. The procedure combines open surgery with a modified stent graft to repair the aortic arch and descending aorta in one operation. Researchers a…

This study looks at patients with an ascending aorta that is enlarged (5.0 to 5.4 cm) but not yet at the traditional surgery threshold. Half will have early surgery to replace the aorta, and half will be closely monitored. Researchers will compare death rates and dangerous aortic…

This study compares two surgical timings for babies born with Tetralogy of Fallot, a serious heart defect. One group gets corrective surgery within 28 days of birth, the other at the usual 3-6 months. Researchers will track deaths, reoperations, and recovery to see if earlier sur…

This early-phase study tests whether placing amiodarone directly into the sac around the heart during open-chest surgery can prevent a common and serious irregular heartbeat called atrial fibrillation. About 63 adults aged 20-85 having bypass or valve surgery will receive this tr…

This study follows up to 4,000 people with vasculitis (a group of diseases that cause blood vessel inflammation) and healthy volunteers over many years. Researchers collect blood, urine, imaging, and genetic samples to learn how the disease develops and changes. The goal is to fi…

This study looks back at medical records of 105 people who had a minimally invasive surgery called BEVAR to treat complex aortic aneurysms. Researchers want to see if two types of stent grafts (TUVA BX and iCover) are safe and work well. No new treatments are given; the study jus…

This pilot study tests whether a special MRI technique can measure wall shear stress—the force of blood against vein walls—in the pulmonary veins of infants. These veins carry blood from the lungs to the heart, and narrowing them (pulmonary vein stenosis) is a life-threatening co…

This study looks at how inflammation and energy use in the aorta differ between people with a bicuspid versus tricuspid aortic valve who have an ascending aortic aneurysm. Researchers will analyze blood and discarded surgical tissue to find molecular markers that could lead to be…

This study aims to learn how well heart scans (MRI, ultrasound, PET) can detect and predict outcomes in people with suspected or known inflammatory heart diseases. Researchers will follow 5,000 adults for one year to see how often heart involvement is confirmed and how it affects…

This global registry is collecting information from 1,000 people with Takayasu's arteritis, a rare disease that inflames and narrows large arteries. Researchers will analyze patients' symptoms, lab results, imaging, and treatments to see how the disease behaves and is managed aro…

This study follows 200 adults who have had or will have a procedure to fix a leaky or narrowed valve in the right side of the heart. Researchers track survival, unplanned hospital stays, and heart function using blood tests and ultrasound. The goal is to learn which treatments wo…

This study looks at tissue removed from patients with enlarged aortas (aneurysms) during surgery. Researchers want to measure how strong the tissue is and see if that relates to the size or thickness of the aorta. The goal is to better understand what makes an aneurysm likely to …

This observational study aims to better understand the mechanical properties of the aortic wall in patients with aortic aneurysms or dissection. Researchers will measure tissue strength from samples taken during surgery and compare them to samples from patients without aortic dis…

This study compares two surgical techniques for repairing a chronic ascending aortic aneurysm: the traditional full sternotomy (cutting through the breastbone completely) and a less invasive J-shaped mini-sternotomy (a smaller cut). Researchers will track early and late outcomes …

This study tracks the pregnancy experiences of women with vasculitis, a group of rare diseases causing blood vessel inflammation. Researchers will use online surveys to understand how vasculitis affects pregnancy and what outcomes occur. The goal is to gather information to help …

This study collects tissue samples from 1,000 people with various forms of vasculitis, a group of rare inflammatory blood vessel diseases. Researchers will analyze the samples alongside clinical data to identify genes that increase risk and to spark new ideas for diagnosis and tr…

This study uses two online questionnaires to learn about the experiences of people with Takayasu arteritis and how doctors manage the condition. About 50 patients and an unspecified number of physicians in the UK will share their views on symptoms, treatment priorities, and unmet…

This study collects DNA samples and medical information from 1,000 people with various forms of vasculitis (blood vessel inflammation). Researchers will analyze the data to identify genes that increase the risk of developing these severe diseases. The goal is to better understand…

This study is looking at 200 people who need surgery for an ascending aortic aneurysm. Researchers will use MRI scans before surgery and test the removed tissue in the lab to learn more about the aorta's strength and flexibility. The goal is to better understand when surgery is n…

This study looks at how two rare diseases that cause blood vessel inflammation—Takayasu arteritis and Behçet's disease—affect physical strength, breathing, daily function, and emotional well-being. Researchers will compare 30 participants (patients and healthy volunteers) using s…

This study is testing a device called Electrical Impedance Tomography (EIT) that uses electrodes to create images of the lungs without radiation. Researchers want to see if it can provide useful information about lung function in children with chronic respiratory diseases, includ…

This study follows 150 people with Takayasu's arteritis that also affects the lung arteries. Researchers will track their health over time, including how far they can walk in six minutes and their risk of death. The goal is to better understand the disease and its long-term outlo…

This study follows 150 fetuses diagnosed with a rare heart condition called pulmonary atresia with intact ventricular septum. Researchers will track their health before and after birth to develop a model that predicts which babies will need simpler versus more complex surgeries. …

This observational study is measuring arterial stiffness in 250 people with genetic conditions that cause aortic aneurysms. Researchers want to see if stiffness can help predict who is at higher risk. Participants undergo a simple, non-invasive test of blood pressure and artery s…