Overview A Study of CH-4051 in Patients With Rheumatoid Arthritis (RA) Status: Completed Trial end date: 2012-05-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if CH-4051 is a safe and effective treatment for rheumatoid arthritis. Phase: Phase 2 Details Lead Sponsor: Chelsea TherapeuticsTreatments: Folic AcidMethotrexateVitamin B Complex