The filed complaint alleges that defendants made materially false and/or misleading statements and/or failed to disclose that: (1) the study design of the Phase III ADVOCATE trial presented issues about the interpretability of the trial data to define a clinically meaningful benefit of avacopan and its role in the management of ANCA-associated vasculitis; (2) the data from the Phase III ADVOCATE trial raised serious safety concerns for avacopan; (3) these issues presented a substantial concern regarding the viability of ChemoCentryx's New Drug Application ("NDA") for avacopan for the treatment of ANCA-associated vasculitis; and (4) as a result of the foregoing, Defendants' public statements were materially false and misleading at all relevant times.