Arterial occlusion

This trial is investigating whether adding a clot-removal procedure, called endovascular treatment, to standard medical care can improve outcomes for people who have had a severe stroke caused by a blockage in the basilar artery, a major vessel at the back of the brain. The study…

This trial investigates whether giving a low dose of the clot-busting drug alteplase directly into the brain artery, right after successful mechanical clot removal, can improve recovery in people with a severe stroke caused by a large vessel blockage. About 416 adults who have ha…

This study tests a device called the Artix Thrombectomy System to remove blood clots from leg arteries in people with sudden blockages. About 250 adults with symptoms lasting up to 14 days will be enrolled. The goal is to see if the device can safely restore blood flow and preven…

This study looks at 518 adults with a severe stroke caused by a blockage in the main artery at the back of the brain. It compares two standard treatments: a procedure to remove the clot (endovascular therapy) versus medication alone. The goal is to see which approach leads to bet…

This study is testing two catheter-based devices, Symphony and Prodigy, that remove blood clots from blood vessels in the legs, arms, or lungs. Researchers want to see if these devices can safely restore blood flow and prevent serious outcomes like amputation or heart strain. The…

This study looks at whether removing a blood clot from a medium-sized brain artery (M2 segment) helps people recover better after a stroke. About 200 adults who have had a stroke and are not helped by clot-busting medicine will be randomly assigned to get either standard care or …

This study is testing a covered stent called BeFlow to treat narrowed or blocked iliac arteries in the pelvis. Researchers will monitor 100 patients to see how well the stent restores blood flow and how safe it is. The goal is to improve walking ability and reduce pain caused by …

This study tests whether adding GM1, a natural brain substance, to standard clot-removal treatment helps people recover better after a severe stroke. About 868 adults in China who have a blocked artery in the front part of the brain will receive either GM1 or a placebo daily for …

This study tests whether the drug sivelestat sodium, given alongside standard clot-removal surgery, can help people recover better after a major stroke. The trial will include 868 adults aged 18-80 with large-vessel blockage in the front part of the brain. The goal is to see if t…

This study is testing whether giving the blood thinner heparin before inserting a tube into the wrist artery can prevent a common complication: blockage of that artery. About 550 people undergoing a heart procedure through the wrist will be randomly assigned to receive heparin ei…

This study tests whether the antibiotic minocycline can improve recovery in people who have had a major stroke and undergone a procedure to remove a blood clot from a large brain artery. Even when the clot is successfully removed, many patients still have significant disability. …

This study tests whether adding the antibiotic minocycline to standard stroke treatment can improve recovery in people who had a severe stroke in the back of the brain. After a clot is removed, brain inflammation can limit healing. Minocycline may reduce that inflammation. The tr…

This trial is testing a drug called tenecteplase for people with a severe stroke caused by a blockage in the basilar artery at the back of the brain. About 688 participants will receive either tenecteplase or standard care within 24 hours of symptoms starting, followed by a clot-…

This phase 3 trial tests whether adding tocilizumab, an anti-inflammatory drug, to standard emergency stroke treatment improves outcomes for people with a severe stroke in the back of the brain. About 348 adults will receive either tocilizumab or a placebo by IV right before a pr…

This study compares a procedure to remove blood clots (endovascular therapy) with standard medical care for people who have had a mild stroke caused by a blockage in a large brain artery. About 264 adults with mild symptoms (NIHSS score 2-5) will be enrolled within 24 hours of st…

This study compares two ways to reach a blood clot in the basilar artery, a key vessel at the back of the brain, during a stroke. One method uses the femoral artery in the groin, the other uses the radial artery in the wrist. Researchers want to see which approach leads to better…

This study tests whether a special cold plasma treatment, given daily for 10 days after a leg artery procedure, can help heal diabetic foot ulcers faster. About 40 adults aged 18–80 with diabetes and blocked leg arteries will take part. Half will get real plasma, half a fake trea…

This study tests whether giving the steroid methylprednisolone right after a stroke clot removal procedure can help patients recover better. About 210 adults who had a major stroke from a blocked artery in the brain will be randomly assigned to receive either the steroid or a pla…

This study tests whether giving a clot-busting drug (tenecteplase) before transferring patients with a severe stroke in the back of the brain (basilar artery occlusion) to a specialized hospital can improve recovery. About 316 adults who had a stroke 4.5 to 24 hours earlier will …

This study looks at whether giving a clot-dissolving drug called Tenecteplase to stroke patients before they are moved to a hospital that can perform a clot-removal procedure improves their recovery. The trial involves 572 adults who had a stroke caused by a large blockage in the…

This study compares two treatments for people with completely blocked heart arteries (chronic total occlusions). One group gets a drug-coated balloon, with or without a stent; the other gets standard stents. The goal is to see if the balloon approach keeps arteries open just as w…

This study tests whether taking stroke patients directly to a special imaging and treatment room (angio suite) speeds up care compared to the usual approach of getting a CT or MRI first. About 594 adults with severe stroke symptoms will be randomly assigned to one of the two path…

This study tests whether adding cold atmospheric plasma to standard artery-opening treatment helps heal diabetic foot ulcers faster. About 86 adults with diabetes and blocked leg arteries will receive either real or fake plasma sessions over two weeks. The goal is to see if the p…

This study tests whether performing skull surgery early, before dangerous brain swelling occurs, can improve outcomes for people who have had a severe stroke and are at high risk of swelling. About 380 adults aged 18–75 will be randomly assigned to receive either early surgery pl…

This study tests whether giving a clot-busting drug (rhTNK-tPA) before a clot-removal procedure helps stroke patients who arrive 4.5 to 24 hours after symptoms start. About 820 adults with a blocked large artery in the brain will receive either the drug or a placebo. The goal is …

This study compares two types of general anesthesia during emergency clot removal for stroke patients. The goal is to see which method better maintains blood flow to the brain and improves recovery. About 90 adults with severe stroke will take part at two hospitals in Los Angeles…

This study tests two different medicines given before a procedure to remove a blood clot from the brain in people having a major stroke. The goal is to see which medicine helps more people recover with little or no disability. About 800 adults who arrive at the hospital within 24…

This study compares two treatments for stroke patients whose brain arteries remain blocked after initial clot removal, due to underlying hardening of the arteries (atherosclerosis). About 498 participants will be randomly assigned to receive either urgent stenting or continued st…

This study collects information from 150 adults with antiphospholipid syndrome who had an artery clot in the past year. Participants are already on one of four blood-thinning treatments. Researchers will track who has another clot or a major bleed over two years to see which trea…

This global study tests whether a procedure that removes blood clots from the brain can safely help stroke patients treated up to 72 hours after symptoms start, using only a basic CT scan that is available in most hospitals. Currently, this treatment is only proven within 6 hours…

This study tests a new device called the CONDA stent retriever, which is used to remove blood clots from the brain in people having a stroke. About 50 patients will be treated within 24 hours of their symptoms starting. The goal is to see if the device is safe and works well at r…

This trial tests a new procedure for people who suddenly lose vision due to a blocked artery in the eye. Surgeons will use a tiny microneedle to deliver clot-busting medicine directly into the artery during eye surgery. The study will compare this approach to standard care in 24 …

This study is looking for markers in blood and saliva that can quickly tell if a person is having a stroke, and what kind. Researchers will collect samples from 650 adults with suspected stroke within 24 hours of symptoms. The goal is to develop a fast, accurate test to help emer…

This study tests whether giving the blood thinner heparin only when needed, instead of routinely, can prevent radial artery occlusion after a heart catheterization procedure. Researchers will enroll 500 patients and compare rates of artery patency, bleeding, and nursing time. The…

This study looks at whether using sedation instead of general anesthesia helps people having a specific type of stroke (vertebrobasilar) recover better after a procedure to remove a blood clot. About 128 adults with moderate to severe stroke symptoms will be enrolled. The goal is…

This study tests a minimally invasive procedure called transcatheter arterial embolization (TAE) combined with physical therapy for people with chronic shoulder pain from rotator cuff tendinopathy that hasn't improved with standard treatments. About 41 adults with moderate to sev…

This study compares two methods of pain control for people having open abdominal surgery. One group gets a single injection of a long-lasting numbing medicine into the belly muscles during surgery. The other group gets a standard numbing medicine through small tubes placed in the…

This observational study will follow 180 stroke patients who had a clot-removal procedure. Researchers will measure brain blood flow and electrical activity at days 1-3 and day 7 after treatment. The goal is to see if early changes in brain function can predict how well patients …

This study is observing 20,000 people undergoing routine heart or blood vessel procedures through the wrist (radial or ulnar artery). Researchers will track complications like artery blockage, spasm, and bleeding. The goal is to gather real-world data to improve safety and succes…

This study looks at 50 adults who had a stroke caused by a blocked middle brain artery and were treated with a clot-removal procedure called thrombectomy. Researchers will use special MRI scans to measure brain activity and metabolism in the damaged area. The goal is to find earl…

This study looks at how often lung cancer patients on immune checkpoint inhibitors develop blood clots (in veins or arteries) and what factors increase that risk. Researchers will follow 2,400 adults with lung cancer who are starting immunotherapy, comparing those who get clots w…

This study is testing whether a gentle electrical stimulation of a nerve in the ear (the vagus nerve) can reduce brain injury and inflammation after a severe stroke. Researchers will measure brain damage markers in the blood of 65 participants over a week. The goal is to see if t…

This study is for adults with a blocked radial artery who need a heart procedure like angiography or angioplasty. Doctors will use the ulnar artery in the same wrist instead. The goal is to see if this approach is safe and how it affects hand strength, feeling, and daily use. Res…