Cerebral artery stenosis

This study tests a special balloon coated with medicine to open narrowed arteries in the brain and prevent strokes. About 264 people with severe artery narrowing will be treated and followed for 12 months. The goal is to see if the balloon is safe and keeps arteries open better t…

This study tests whether pemafibrate, a drug that lowers triglycerides, can prevent the worsening of narrowed brain arteries in people who have already had a stroke or mini-stroke. About 270 participants will be randomly assigned to receive either pemafibrate plus standard care o…

This study tests whether adding a PCSK9 inhibitor (Recaticimab) to standard statin therapy can reverse plaque buildup in brain arteries of people with asymptomatic intracranial atherosclerosis. About 300 participants will receive either the drug combo or statins alone for 24 week…

This study looks at 180 adults with moderate to severe narrowing of brain arteries who have high LDL cholesterol. Researchers want to see if improving cholesterol management can lower the chance of having a stroke. Participants will not receive any experimental treatment; instead…

This study is testing a special stent coated with the drug rapamycin to treat narrowed brain arteries in people who haven't gotten better with medication alone. About 300 participants will receive the stent and be monitored for up to a year to see if it reduces the risk of stroke…

This study tests a new drug-coated stent (NxiDIME) for people with severely narrowed brain arteries that have already caused a mini-stroke or stroke. The goal is to see if it keeps the artery open better than an existing stent. About 224 adults will be randomly assigned to get ei…

This study tests whether an ultra-high-resolution CT scan, called photon-counting CT angiography, can accurately detect narrowing inside brain stents. The trial involves 200 adults who have had a stent placed in a brain artery and are due for a follow-up check. The new CT scan's …

This study tests whether a new type of CT scan, called ultra-high-resolution photon-counting CT angiography, can accurately check whether stents placed in the brain's venous sinuses are still open. It compares this new scan to the standard CT method and to the more invasive DSA p…

This study looks at whether special MRI scans can help predict which people with severe narrowing of brain arteries (70-99% stenosis) are most likely to have another stroke. Participants have already had a minor stroke and are enrolled in a larger treatment trial. They will get a…

This study follows 1,300 people who had a stroke or mini-stroke and completed a 1-year exercise program. Researchers will track them for 3 more years to see if the exercise helped prevent future strokes or improve daily function. No new treatments are given—this is purely observa…