Abstract Number: 1489 • 2018 ACR/ARHP Annual Meeting
“Continuous Reduction” in Serum RF Titers Predicts Low Disease Activity and Good Therapeutic Response in RA Patients Treated with TNF Inhibitors, but Does Not Relate to Clinical Outcomes during ABT Treatment
Background/Purpose: Relative change of serum RF titer has been reported to correlate with those of RA disease activity. However, it is debatable whether serum RF…Abstract Number: 410 • 2017 ACR/ARHP Annual Meeting
Association between Anti-Citrullinated Protein Antibody Status and the Incidence of Erosive Disease in Patients with RA
Background/Purpose: RA is characterized by the production of autoantibodies including anti-citrullinated protein antibodies (ACPAs).1 ACPAs are considered a prognostic indicator for more severe RA and…Abstract Number: 2918 • 2017 ACR/ARHP Annual Meeting
The Appearance of IgA RF Followed By IgG RF Is Associated with Transition to Classifiable RA in a Large Preclinical RA Cohort
Background/Purpose: Autoantibodies including rheumatoid factor (RF) and antibodies to citrullinated protein antigens (ACPA) are known to be present in the serum of individuals prior to…Abstract Number: 1035 • 2016 ACR/ARHP Annual Meeting
The Prognostic Value of Different Auto-Antibodies for Arthritis Development in Patients with Clinically Suspect Arthralgia
Background/Purpose: Previous longitudinal studies in arthralgia patients studied Rheumatoid Factor (IgM-RF) and Anti-Citrullinated Protein Antibodies (ACPA) in relation to arthritis development. Participants in these studies…Abstract Number: 1553 • 2016 ACR/ARHP Annual Meeting
Declining Flare Rates in the First Five Years of RA Disease, but Not after
Background/Purpose: Flare or episodic worsening of disease activity is an important aspect of the disease experience for patients with rheumatoid arthritis (RA). Improving trends towards…Abstract Number: 2654 • 2016 ACR/ARHP Annual Meeting
Association Between Rheumatoid Factor Positivity and Effects of Treatment with a First Biologic Agent in Rheumatoid Arthritis
Background/Purpose: The presence of rheumatoid factor (RF) plays an important role in the diagnosis of rheumatoid arthritis (RA). However, whether RF positivity is related to…Abstract Number: 501 • 2015 ACR/ARHP Annual Meeting
Change in RF Titers Reflects RA Disease Activity and Predicts Therapeutic Response during TNF Inhibitor Therapy; Patients with a Continuous Reduction of Serum RF Levels Show Good Response
Background/Purpose: Serum RF was detected in 26-90% of RA patients, and high-titer RF has been shown a poor prognosis factor in RA and predictor of…Abstract Number: 520 • 2015 ACR/ARHP Annual Meeting
Antibody to Porphyromonas Gingivalis in Pre-Clinical Rheumatoid Arthritis
Background/Purpose: Periodontitis (PD) has been implicated as an etiologic risk factor in rheumatoid arthritis (RA), an association that is speculated to be related to the…Abstract Number: 1216 • 2015 ACR/ARHP Annual Meeting
The Clinical and Ultrasonographic Presentation of Seronegative RA Is More Severe Compared to Seropositive RA in an Inception Cohort of DMARD-Naïve Patients Classified According to the 2010 ACR/EULAR Criteria
Background/Purpose: The development of the 2010 ACR/EULAR classification criteria for rheumatoid arthritis (RA) has led to a redefinition of the patient population, including classification of…Abstract Number: 1904 • 2014 ACR/ARHP Annual Meeting
Rheumatoid Factor Isotype Testing to Identify Individuals in the Preclinical Period of Rheumatoid Arthritis
Background/Purpose: Rheumatoid arthritis (RA)-related autoantibody (Ab) testing for Abs to cyclic citrullinated peptide (CCP) and rheumatoid factor (RF) are used in the clinical diagnosis of…Abstract Number: 2363 • 2013 ACR/ARHP Annual Meeting
Positivity Of Rheumatoid Factor and Anti-Cyclic Citrullinated Peptide Is Associated With The Response Rate Of Infliximab, But Not Tocilizumab, In Treatment Of Rheumatoid Arthritis
Background/Purpose: Recent reports have shown that positivity for rheumatoid factor (RF) and anti-citrullinated protein antibodies (ACPA) can influence the efficacy of rheumatoid arthritis (RA) treatment.…