Granulomatous angiitis

This study looks at whether people with giant cell arteritis (GCA) who are in remission can safely stop or lower their dose of tocilizumab (Actemra). About 78 adults who have been on high-dose tocilizumab for at least a year and off steroids for three months will either stop the …

This phase 3 trial tests whether a shorter, lighter course of corticosteroids (28 weeks) works as well as the standard longer course (52 weeks) for giant cell arteritis, a condition that inflames blood vessels. The study aims to reduce side effects from long-term steroid use. 150…

This study tests whether the drug abatacept can help people with giant cell arteritis, a condition that causes inflammation in blood vessels. About 78 adults with newly diagnosed or relapsing disease will receive either abatacept or a placebo for up to 12 months. The goal is to s…

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 tests a new type of PET/CT scan (AzaFol) to see if it can better diagnose giant cell arteritis, a condition that causes inflamed blood vessels. About 70 people with suspected GCA will get the new scan and a standard scan to compare accuracy. The goal is to improve diag…

This study looks at whether lower-resolution MRI scans can still reliably detect giant cell arteritis, a serious inflammation of arteries that can cause blindness or stroke. Researchers will compare different MRI techniques in 133 adults suspected of having the disease. If lower-…

This study is testing whether a special MRI scan can detect inflammation in the arteries that supply blood to the head, brain, and eyes in people with suspected giant cell arteritis (GCA). Researchers will enroll 400 adults aged 50 and older who have new or worsening symptoms and…

This study is testing whether measuring the optic nerve sheath with ultrasound can reliably diagnose giant cell arteritis (GCA), a condition that can cause blindness. Researchers will enroll 190 people over 50 with suspected GCA and compare ultrasound results to the final diagnos…

This pilot study is testing whether measuring a protein called thrombomodulin in the blood can help rule out giant cell arteritis (GCA) in people with polymyalgia rheumatica (PMR). GCA is a serious inflammation of the arteries that can cause blindness or stroke if not treated. Th…

This study is testing a new blood-based test that aims to predict which medication will work best for each person with rheumatic diseases like rheumatoid arthritis or lupus. Researchers will take a blood sample and analyze immune cells to create a personalized treatment profile. …

This study looks at whether taking extra hydrocortisone during times of mild to moderate stress (physical or mental) can improve health-related quality of life, especially fatigue, in people with polymyalgia rheumatica (PMR) or giant cell arteritis (GCA) who are on long-term, low…

This study tests whether a low dose of hydrocortisone (a cortisol-like hormone) can reduce symptoms like fatigue and dizziness in people who have recently stopped taking prednisolone for giant cell arteritis or polymyalgia rheumatica. About 100 adults aged 50 and older will recei…

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 tracks how fast the 'halo sign' — a key ultrasound marker of inflamed arteries — disappears after starting steroid treatment in people with giant cell arteritis, a rare disease that can cause blindness. Researchers will scan the temporal arteries of 64 newly diagnosed …

This study tests whether ultrasound scans and patient questionnaires can better track disease activity in people with giant cell arteritis, a condition that inflames arteries and can cause blindness. Researchers will follow 175 patients in remission for one year, using ultrasound…

This study looks at two conditions that can cause sudden vision loss: giant cell arteritis (GCA), a blood vessel inflammation that needs urgent treatment, and NAION, a similar condition that does not benefit from that treatment. Researchers will use special PET/MRI scans and eye …

This study is looking for 340 people with suspected giant cell arteritis (GCA), a condition that causes inflammation in blood vessels and is usually treated with long-term steroids. The goal is to find better ways to predict who will have relapses and to monitor the disease using…

This study looks at whether ultrasound scans of the temporal and axillary arteries can help predict relapses in people with giant cell arteritis, a disease that causes inflamed blood vessels. Researchers will follow 100 patients to see if certain ultrasound findings are linked to…

This study is building a large registry and biorepository of 5,000 adults with various rheumatic diseases like rheumatoid arthritis, lupus, and scleroderma. Researchers at Yale University will collect medical data and biological samples over time to better understand these condit…

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 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 follows 400 adults diagnosed with giant cell arteritis or polymyalgia rheumatica to track serious side effects over time. Researchers will monitor for new or worsening aortic aneurysms and aortic dissections, as well as steroid-related complications. The goal is to bet…

This study is following 670 adults with vasculitis, a rare blood vessel disease, for up to 5 years. Researchers will collect medical data and blood samples to see how the disease starts, how it is treated, and what long-term problems may arise. No new treatments are being tested—…