Granulomatosis with polyangiitis

This study looked at 159 people with granulomatosis with polyangiitis (GPA), a rare disease that causes inflammation of blood vessels. Participants were randomly assigned to either stay on a low 5 mg daily dose of prednisone or slowly stop it over six months. The goal was to see …

This early study looked at a new drug, MT-2990, in 5 people with ANCA-associated vasculitis, a rare disease where the immune system attacks blood vessels. The goal was to see if the drug is safe and how it affects disease activity. Researchers measured changes in symptoms, imagin…

This study looked at 201 Canadian patients with ANCA-associated vasculitis to see if cheaper biosimilar versions of rituximab work as well as the original drug. Researchers compared disease control, side effects, and how long it took to get insurance approval for treatment. The g…

This study tested whether rosuvastatin, a common cholesterol-lowering drug, could reduce early signs of artery hardening in 121 people with ANCA-associated vasculitis. Participants were in remission and received either rosuvastatin or a placebo for up to 2 years. The goal was to …

This study tested whether giving a stronger pneumococcal vaccine schedule (either two doses close together or a single larger dose) followed by a standard booster could improve immune protection in 96 adults with ANCA-associated vasculitis who are also receiving rituximab therapy…

This study tested whether rituximab, a targeted antibody therapy, is better than azathioprine, a standard immune-suppressing drug, at preventing relapses in people with ANCA-associated vasculitis. 117 patients who had achieved remission were randomly assigned to receive either ri…

This study looked at whether giving rituximab for 46 months instead of the usual 18 months can better prevent relapses of ANCA-associated vasculitis, a rare autoimmune disease that causes blood vessel inflammation. 97 patients who were already in remission after initial rituximab…

This study tested two ways of giving rituximab to people with ANCA-associated vasculitis, a rare disease where the immune system attacks blood vessels. All 166 participants were in remission and received rituximab either on a fixed schedule or only when certain blood markers (ANC…

This study tested whether a low dose (4.5 mg) of naltrexone, a drug already used for alcoholism, can improve physical health and quality of life in people with vasculitis. Sixty participants took either the drug or a placebo daily for six weeks. The goal was to see if the drug le…

This study followed 293 people with autoimmune diseases and healthy volunteers to see how COVID-19 infection or vaccination affects their immune system, inflammation, and blood vessels. Participants were grouped based on their COVID-19 history and had up to 5 visits over 12-18 mo…

This trial tests whether rituximab, a drug used for ANCA-associated vasculitis, leaves patients with a weakened immune system. Researchers give pneumococcal vaccines to patients treated with rituximab, patients with the disease but not on rituximab, and healthy volunteers. They c…

This study looks at whether a protein in the blood, called soluble CD95 ligand, plays a role in ANCA-associated vasculitis, a rare group of diseases that cause inflammation of blood vessels. Researchers will collect blood and urine samples from 48 adults with the condition and tr…

This study explores whether a special type of PET/CT scan, using a radioactive tracer called 18F-FDG, can accurately measure disease activity in people with granulomatosis with polyangiitis (GPA), a rare condition that causes inflammation of blood vessels. Researchers will compar…

This study looked at immune cells from 138 people with Wegener's granulomatosis, a rare disease causing inflammation of blood vessels. Researchers measured levels of a protein called DAP12 in different immune cells to understand how the disease works. No new treatment was tested;…

This study compares two blood-filtering techniques—plasma exchange and immunoadsorption—in 40 patients with severe kidney failure caused by ANCA vasculitis or Goodpasture disease. The goal is to see which method removes disease-causing antibodies more quickly. Results may help do…

This study looked at how certain immune cells, called neutrophils, behave in people with granulomatosis with polyangiitis (GPA), a rare blood vessel inflammation disease. Researchers collected blood samples from 93 participants, including patients with GPA and other related condi…