WCN25-1022 LONG-TERM KIDNEY FUNCTION BEYOND 12 MONTHS AND KIDNEY RELAPSE AFTER INITIATION OF TREATMENT FOR ANCA-ASSOCIATED VASCULITIS - Lisa Uchida; Vanja Ivkovic; Anna Matyjek; Duvuru Geetha; Balazs Odler; Carmel Hawley; Zachary S. Wallace; Carol McAlear; Mats Junek; Peter A. Merkel; Michael Walsh; David R.W. Jayne; et al. (Kidney International Reports)