LB03A PHASE III, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY TO EVALUATE THE EFFICACY AND SAFETY OF ABATACEPT OR PLACEBO ON STANDARD OF CARE IN PATIENTS WITH ACTIVE CLASS III OR IV LUPUS NEPHRITIS. (28th May 2018) - Jayne, David; Dooley, Mary; Wofsy, David; Takeuchi, Tsutomo; Malvar, Ana; Doria, Andrea; Romero-Díaz, Juanita; Chan, Tak; Elegbe, Ayanbola; Appel, Gerald; Furie, Richard; Maldonado, Michael