Study of Abatacept Versus Placebo to Assess the Prevention of Rheumatoid Arthritis (RA) in Adult Patients

Inclusion Criteria

• •Diagnosis of undifferentiated arthritis
• •Clinical synovitis of two or more joints
• •At least one but not more than three of the criteria for diagnosis of RA (1987).
• •No prior disease modifying anti-rheumatic drugs (DMARDs)/biologics.
• •Duration of disease must be 18 months or less.
• •Positive for antibodies against cyclic citrullinated peptides.