VASCULAR DISEASES

This study tests a faster version of a procedure called renal denervation, which uses energy to calm overactive nerves in the kidneys to lower blood pressure. About 130 adults with uncontrolled high blood pressure will receive the quicker procedure. The goal is to see if it works…

This study tests a device that uses radiofrequency energy to disrupt nerve signals in the kidney and liver arteries, aiming to lower blood pressure in people with uncontrolled hypertension. About 175 adults aged 18-80 with high blood pressure despite medication will be enrolled. …

This study tests a new device called Freesolve, a temporary magnesium scaffold that props open blocked heart arteries and then dissolves over time. About 1,859 people with up to two new blockages will receive either this scaffold or a standard permanent stent. The goal is to see …

This study tests whether taking low-dose aspirin for six months after childbirth can help blood vessels heal and lower blood pressure in women who had preeclampsia. About 60 new mothers will receive either aspirin or a placebo. The goal is to see if this simple treatment can redu…

This early study tests a device called the A-FLUX Reducer, which is implanted into a vein in the heart to help blood flow. It is for people with chest pain caused by problems in the heart's tiny blood vessels (microvascular dysfunction). The study will enroll 30 adults and focus …

This study is tracking 1,000 patients with high blood pressure who receive the Paradise Ultrasound Renal Denervation treatment. The procedure uses ultrasound energy to calm overactive nerves near the kidneys, which can help lower blood pressure. Researchers are monitoring blood p…

This study tests a new inhaled drug, mosliciguat, added to an existing treatment (treprostinil) for people with high blood pressure in the lungs caused by lung scarring. The goal is to see if the combination is safe and tolerable. About 20 adults with this condition will particip…

This study tracks 1,000 Medicare patients with uncontrolled high blood pressure to see if a procedure called renal denervation (using the Symplicity Spyral device) helps lower blood pressure and prevent heart attacks or strokes over two years. Researchers will compare patients wh…

This study is testing whether giving a clot-busting drug (tenecteplase) directly into the blocked brain artery can improve outcomes for people having a stroke caused by a medium-sized vessel blockage. About 282 participants will be randomly assigned to receive either the intra-ar…

This study tests a new device called the efemoral vascular scaffold system (EVSS) in 100 people with blocked leg arteries that cause pain or trouble walking. The scaffold is placed inside the artery to hold it open and improve blood flow. Researchers will check if the device is s…

This study tests whether using a CT scan to guide heart stent placement is better than the current standard (IVUS ultrasound) for people with hardened, calcified coronary arteries. About 700 adults with evidence of reduced blood flow to the heart will be randomly assigned to one …

This early-phase trial tests whether sildenafil (the drug in Viagra) can reduce blood vessel damage in people with advanced heart failure who have a mechanical heart pump (LVAD). LVADs help patients live longer, but they often cause blood vessel aging that leads to strokes or ble…

This study looks at whether taking just one blood thinner (single antiplatelet therapy) is safer and as effective as taking two (dual antiplatelet therapy) in older adults or those at high risk of bleeding who have had a balloon procedure to open blocked heart arteries. About 576…

This study looks at how well a device that uses ultrasound to calm kidney nerves can lower blood pressure in people 65 and older whose blood pressure is not well controlled. Researchers will track 1,000 patients over time using electronic health records. The goal is to see if thi…

This study tests whether a non-invasive treatment called remote ischemic conditioning (RIC) can help people recover after surgery for a ruptured brain aneurysm. RIC involves using a blood pressure cuff on the leg to create brief, harmless blood flow interruptions, which may trigg…

This study is testing a new smartphone-connected 12-lead ECG device to see if it can accurately diagnose heart attacks (STEMI and NSTEMI) in people with chest pain. Researchers will compare the smartphone ECG readings to standard hospital ECGs in 1000 adults. The goal is to valid…

This study tests a portable EEG device called StrokePointer that ambulance crews can use to detect severe strokes caused by large vessel blockages. Currently, over half of these patients are taken to hospitals that cannot perform the needed clot-removal procedure, causing an aver…

This study tests two different stitch materials (PDS and Vicryl) for closing groin incisions after planned vascular surgery. About 259 adults will be randomly assigned to one stitch type or the other. The goal is to see which material leads to fewer wound problems.

This study tests whether a spinal cord stimulator—a device that sends mild electrical pulses to the spine—can reduce pain and improve blood flow in the legs of people with type 2 diabetes who have nerve pain. Researchers will enroll 25 adults with painful diabetic neuropathy and …

This study aims to learn more about how diseases related to blood clots, the immune system, and blood vessels start and change over time. Researchers will enroll up to 1,000 people aged 5 and older, including those with these conditions, their healthy relatives, and healthy volun…

This study looks at how social and lifestyle factors—like education, race, and income—affect a person's thinking and memory after a stroke. Researchers will interview 450 adults who had a stroke and review their brain scans and medical records. The goal is to understand why some …

This study is testing whether a new 3D ultrasound system can help people with blood vessel disease better understand their condition. Researchers will give 270 patients a 3D image of their blocked or narrowed vessels instead of the usual hand-drawn sketch. They want to see if thi…

This study is for adults 18 and older who have had a stroke or a transient ischemic attack (TIA), often called a mini-stroke. The goal is to collect information from standard medical tests and some extra research tests, like blood draws and brain scans, to better understand how t…

This study tests whether a live video call between a neurologist and emergency medical technicians (EMTs) can improve the accuracy of stroke detection in the ambulance. About 512 adults with suspected stroke will take part. The goal is to see if video assistance helps diagnose st…

This study looks at how a short course of high-dose statins affects fatty buildup (plaque) in the heart arteries of people with mild heart disease. Researchers will use advanced CT scans to measure changes in plaque size and type over 3 months, and then check if those changes las…

This study is testing a new way to understand how nerves in the kidney affect blood pressure. About 19 adults with high blood pressure will receive mild electrical stimulation to kidney nerves before and after a procedure that quiets those nerves. The goal is to learn how the bod…

This study from the University of Oxford looks at why women who had high blood pressure during pregnancy are more likely to develop heart and blood vessel disease later in life. Researchers will follow 200 women who gave birth 10 to 25 years ago, using heart scans, exercise tests…

This study compares two techniques for guiding a needle into a blocked leg artery from the opposite direction (retrograde). One uses a live X-ray map, the other uses ultrasound. Researchers want to see which is safer and more successful in 32 people with severe leg artery disease…

This study is reviewing medical records from 5,000 heart and blood vessel surgery patients to find factors that influence recovery and survival. Researchers are looking at data from 2001 to 2013 to identify what leads to complications or death after surgery. The goal is to improv…

This study looks at whether eating beef every day as part of a heart-healthy diet helps older adults (ages 55-70) absorb zinc better and improves how their blood vessels work. Researchers will measure zinc levels in cells and blood vessel function in 20 participants. The goal is …

This study collects tissue samples from women with and without preeclampsia during C-sections to examine blood vessel function. Researchers focus on a protein called AT2R, which may play a role in the condition. The goal is to better understand how preeclampsia affects blood vess…

This study will follow 500 people who have had a stroke and also have atrial fibrillation (an irregular heartbeat). Some were taking blood thinners when they had their stroke, others were not. Researchers want to understand why blood thinners fail in some patients, by looking at …