Exagen, Inc. is dedicated to transforming the care continuum for patients suffering from debilitating and chronic autoimmune diseases by enabling timely differential diagnosis and optimizing therapeutic intervention. Exagen has developed and is commercializing a portfolio of innovative testing products under the AVISE® brand, several of which are based on proprietary Cell-Bound Complement Activation Products, or CB-CAPs, technology. The Company’s goal is to enable rheumatologists to improve care for patients through the differential diagnosis, prognosis and monitoring of complex autoimmune and autoimmune-related diseases, including systemic lupus erythematosus, or SLE, and rheumatoid arthritis, or RA.