This is a phase 1, randomized, double-blind, placebo-controlled, multiple ascending dose study. Twenty-four subjects with Rheumatoid Arthritis will be selected to participate. Subjects will be randomized to receive either ABT-122 or placebo. ABT-122 or placebo will be administered as subcutaneous (under the skin) injections in three dosing groups.
The purpose of this study is to assess the safety, tolerability and pharmacokinetics of ABT-122 in subjects with Rheumatoid Arthritis.