
ALT The history of avacopan. Initially shown to attenuate glomerulonephritis in a mouse model of ANCA-associated vasculitis in 2014, phase II and III trials quickly followed and avacopan was approved for use across the globe in late 2021 and early 2022. Following release of the Walton report in May 2025, as part of a securities fraud litigation against ChemoCentryx, investigations into the ADVOCATE trial by regulatory bodies began in early 2026

ALT Time course of liver enzyme tests in two suspected cases of avacopan-induced drug-induced liver injury. Liver enzyme levels expressed as multiples of the upper limit of normal (×ULN. (a) 40s year old white woman with GPA noted to have elevated liver enzymes 62 days after initiating avacopan. Liver enzymes normalized within 6 weeks of stopping avacopan. (b). 50s year old white woman with GPA noted to have elevated liver enzymes 71 days after initiating avacopan. Liver enzymes normalized within 7 weeks of stopping avacopan
























