OP0139 EFFICACY AND SAFETY OF ABBV-599 HIGH DOSE (ELSUBRUTINIB 60 MG AND UPADACITINIB 30 MG) AND UPADACITINIB MONOTHERAPY FOR THE TREATMENT OF SYSTEMIC LUPUS ERYTHEMATOSUS: A PHASE 2, DOUBLE-BLIND, PLACEBO-CONTROLLED TRIAL Annals of the Rheumatic Diseases Volume 82, Supplement 1, June ...