A Long-term Extension Study to Assess the Safety and Efficacy of Fostamatinib Disodium (FosD) in the Treatment of Rheumatoid Arthritis

The primary objective of this study is to evaluate the long-term safety and tolerability of fostamatinib in patients with active rheumatoid arthritis (RA) by assessment of adverse event (AE) reports, laboratory safety data, vital signs, electrocardiograms (ECGs) and physical examination.