Antineutrophil cytoplasmic antibodies (ANCAs) are immune proteins involved in certain autoimmune conditions that cause inflammation of small blood vessels, known as vasculitis. This inflammation can affect multiple organs and may lead to symptoms such as fatigue, shortness of breath, joint pain, and potential organ damage.

Emerging treatments are being studied through clinical trials to better manage the condition. Participation may offer access to targeted therapies designed to reduce flare-ups, protect vital organs, and improve long-term safety and effectiveness in disease management.