- Male or female subject, 18 years or older who has a diagnosis of Rheumatoid Arthritis (RA) as defined by the 1987-revised American College of Rheumatology (ACR)-classification criteria or the new American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) diagnostic criteria for RA 2010-classification criteria and has a disease duration for a minimum of 3 months.