Overview A Long Term Study to Assess the Safety of Fostamatinib in Patients in Asia With Rheumatoid Arthritis Status: Terminated Trial end date: 2013-07-01 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate the long term safety and tolerability of fostamatinib in patients in Asia with rheumatoid arthritis (RA). Phase: Phase 2 Details Lead Sponsor: AstraZeneca