Akari Therapeutics PLC is a biopharmaceutical company. It focused on the development and commercialization of innovative therapeutics to treat orphan autoimmune and inflammatory diseases. The Company's lead drug consist of Coversin is a recombinant small protein, which acts on complement component-C5, preventing release of C5a and formation of C5b-9. Akari Therapeutics PLC, formerly known as Celsus Therapeutics Plc, is based in London, United Kingdom.