This is a phase 1, randomized, double-blind, placebo-controlled, single-and multiple ascending dose study. Up to eighty-eight subjects with Systemic Lupus Erythematosus will be selected to participate. Subjects will be randomized to receive either ABT-199 or placebo. Subjects will be administered ABT-199/placebo as a single dose or up to 14 days as multiple doses.
