Apellis Pharmaceutical was founded in 2009 in Crestwood, U.S.A. It is a company with the aim of innovating and creating products to treat autoimmune and inflammatory diseases. Our lead compounds are designed to broadly inhibit complement C3, which is the central protein in the complement system.The complement system plays a key role in a wide range of autoimmune and inflammatory diseases. They believe with the use of C3 inhibition it may correct the immunological dysfunction. The approach they apply to this process is known as complement immunotherapy.