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Browse 47,334 clinical trials for rheumatoid arthritis. Find studies that match your criteria and connect with research centers.
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NCT06416371
The goal of this observational study is to learn about leakage from retinal vessels in cerebral small vessel disease. The main questions it aims to answer are: * Does retinal vessel leakage occur in cerebral small vessel disease? * If it does, is the severity of retinal vessel leakage similar to the severity of cerebral small vessel disease generally? Participants will be tested using fluorescein angiography. This involves an intravenous injection of fluorescent dye, and is a very sensitive way to find leakage from retinal blood vessels. Participants will have already had brain scans and other examinations and tests to measure the severity of their cerebral small vessel disease. Our new retinal images will complement the information from these previous tests.
NCT06306963
The researchers are trying to find out more about Gastric Antral Vascular Ectasia (GAVE). This is a condition that affects the blood vessels in the stomach, leading to their enlargement and possible bleeding. It can also cause symptoms such as abdominal pain and nausea. By participating in this study, you will help us learn how often these symptoms occur and how they relate to stomach functioning.