The Role of Rheumatoid Factor in Rheumatoid Arthritis
Discover more about the role of rheumatoid factor in rheumatoid arthritis
The Role of Rheumatoid Factor in Rheumatoid Arthritis
1937
Rheumatoid factor first discovered in a patient with rheumatoid arthritis1
1956
Included in the ARA diagnostic criteria for definite rheumatoid arthritis as “positive sheep cell agglutination”2
1958
Characterisation of antibodies and gamma globulin that interact with rheumatoid factor3
1962
Rheumatoid factor identified as a poor prognostic factor in rheumatoid arthritis4
1969
Rheumatoid factor binding to Ig causes complement activation5
1987
Included in the 1987 ACR revised classification criteria for rheumatoid arthritis6
2013
Rheumatoid factor has limited clinical usefulness in monitoring disease activity and treatment response7
PRESENT
Rheumatoid factor is widely recognised as a diagnostic and prognostic marker for rheumatoid arthritis and is used to inform better disease management7,8
Impact on treatment responses
The presence of rheumatoid factor has a clear association with higher levels of disease activity,13 especially when detected at high levels.9,14–20
Therefore, patients with rheumatoid arthritis and high rheumatoid factor experience a more severe and aggressive disease course which requires intensive treatment to improve outcomes.20
Higher levels of disease activity
Many biologic disease-modifying anti-rheumatic drugs used for the treatment of rheumatoid arthritis contain fragment crystallisable (Fc) regions.10 This means that rheumatoid factor can also target the Fc region of these drugs to form immune complexes.11,12
These immune complexes could be impacting treatment response in patients with rheumatoid arthritis and high rheumatoid factor levels.12
EU-DA-2300317
Date of preparation: August 2024