Abstracts tagged "Anti-citrullinated Protein Autoantibodies (ACPAs)"

Abstract Number: 1652 • ACR Convergence 2021
Symptom Burden in Anti-citrullinated Protein Antibody Positive Individuals At-risk for Rheumatoid Arthritis Is Changing over Time and Comparable to Patients with Early Rheumatoid Arthritis
Paul Studenic¹, Alexandra Circiumaru², Daniel Aletaha³, Katerina Chatzidionysiou⁴, Anca Catrina⁵ and Aase Haj Hensvold⁶, ¹Karolinska Institute; & Medical University of Vienna, Stockholm, Sweden, ²Division for Rheumatology, Karolinska Institutet; Center for Rheumatology, Academic Specialist Center, Stockholm Region, Stockholm, Sweden, ³Medical University Vienna, Vienna, Austria, ⁴Karolinska Institute, Division of Rheumatology; & Karolinska University Hospital, Rheumatology Unit, Stockholm, Sweden, ⁵Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden, ⁶Karolinska Institutet, Division for Rheumatology; & Center for Rheumatology, Academic Specialist Center, Stockholm Region, Stockholm, Sweden
Background/Purpose: Symptom burden in individuals at risk for developing rheumatoid arthritis (RA) - positive for anti-citrullinated peptide antibodies (ACPA) and musculoskeletal complaints - has not…
Abstract Number: 0772 • ACR Convergence 2020
Modification of THP-1 Cells with Malondialdehyde-Acetaldehyde Increases Cellular Calcium Load Rendering Cells Susceptible to Citrullination of Self-Proteins
Nozima Aripova¹, Michael Duryee¹, Xiarepati Tieliwaerdi¹, Xiaoting Jiang¹, Lynell Klassen², James O'Dell¹, Bryant England¹, Ted Mikuls¹ and Geoffrey Thiele¹, ¹University of Nebraska Medical Center, Omaha, NE, ²Univerisity of Nebraska Medical Center, Omaha, NE
Background/Purpose: The post translational modification of self-proteins with malondialdehyde-acetaldehyde (MAA) has been shown to alter protein function and antibodies to MAA are increased in both…
Abstract Number: 0801 • ACR Convergence 2020
The Comparative Effectiveness of Abatacept versus TNF Inhibitors in Patients Who Are ACPA Positive and Have the Shared Epitope: Results from a US National Observational Study
Leslie Harrold¹, Keith Wittstock², Sheila Kelly², Xue Han², Joe Zhuo², Amy Schrader¹, Nicole Middaugh¹, Page Moore¹ and Vadim Khaychuk², ¹Corrona, LLC, Waltham, MA, ²Bristol-Myers Squibb Company, Princeton, NJ
Background/Purpose: The HLA-DRB1 shared epitope (SE) is associated with joint destruction in ACPA+ patients (pts) with RA.1 In the Early AMPLE trial, among ACPA+ pts…
Abstract Number: 0804 • ACR Convergence 2020
Factors That Influence Biological Survival in Rheumatoid Arthritis: Results of a Real-world Cohort from the Netherlands
Elise van Mulligen¹, Saad Ahmed¹, Angelique Weel², Mieke Hazes³, Annette van der Helm - van Mil⁴ and Pascal de Jong¹, ¹Erasmus MC, Rotterdam, Netherlands, ²Erasmus School of Health Policy & Management, Maasstad hospital, Erasmus MC, Rotterdam, Netherlands, ³Erasmus Medical Center, Rotterdam, Netherlands, ⁴Leiden University Medical Center, Erasmus Medical Center, Leiden, Netherlands
Background/Purpose: Data on biological survival, stratified for discontinuation reasons, and predictors that influence survival time have not been explored extensively. Therefore, we aim to explore…
Abstract Number: 0824 • ACR Convergence 2020
The Comparative Effectiveness of Abatacept versus Tofacitinib After 6 Months of Treatment in Patients with RA Who Were Anti-citrullinated Protein Antibody Positive at Baseline: Results from a US National Observational Study
Leslie Harrold¹, Keith Wittstock², Sheila Kelly², Xue Han², Ying Shan¹, Page Moore¹, Lin Guo¹ and Vadim Khaychuk², ¹Corrona, LLC, Waltham, MA, ²Bristol-Myers Squibb Company, Princeton, NJ
Background/Purpose: Previous data from the Corrona RA registry, conducted in a US clinical practice setting, demonstrated that patients (pts) with RA who were ACPA+ had…
Abstract Number: 0132 • ACR Convergence 2020
Prevalence of Osteoporosis and Fragitlity Fractures Is Not Different Between ACPA Positive Patients Compared to ACPA Negative Patients in a Real World Setting, Despite Longer Disease Duration and Glucocorticoid-Treatment
Edgar Wiebe¹, Desiree Freier¹, Dörte Huscher², Gloria Dallagiacoma³, Sandra Hermann¹, Robert Biesen⁴, Gerd Burmester⁵ and Frank Buttgereit⁶, ¹Charité University Medicine Berlin, Dep. of Rheumatology and Clinical Immunology, Berlin, Germany, ²Charité University Medicine Berlin, Dep. of Biometry and Clinical Epidemiology, Berlin, Germany, ³University of Verona, Dep. of Rheumatology, Verona, Italy, ⁴Charité University Medicine, Dep. of Rheumatology and Clinical Immunology, Berlin, ⁵Charité University Hospital Berlin, Berlin, Germany, ⁶Charité University Medicine, Berlin, Germany
Background/Purpose: Rheumatoid arthritis (RA) is associated with increased systemic bone loss, leading to a high risk for hip, vertebral and non-hip, non-vertebral fractures. Especially ACPA…
Abstract Number: 0826 • ACR Convergence 2020
Clinical Responses and Patient Flow over 2 Years of Treatment with Abatacept, Including Dose De-Escalation, in Patients with Early, MTX-Naïve, ACPA+ RA: Results from a Phase IIIb Study
Paul Emery¹, Yoshiya Tanaka², Vivian Bykerk³, Clifton Bingham III⁴, Thomas Huizinga⁵, Gustavo Citera⁶, Kuan-Hsiang Gary Huang⁷, Sean Connolly⁸, Yedid Elbez⁹, Robert Wong⁸, Karissa Lozenski⁸ and Roy Fleischmann¹⁰, ¹Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK, Leeds, United Kingdom, ²The First Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan, ³Hospital for Special Surgery, New York, NY, ⁴Johns Hopkins University, Baltimore, MD, ⁵Leiden University Medical Center, Leiden, Netherlands, ⁶Instituto de Rehabilitación Psicofísica, Buenos Aires, Argentina, ⁷Bristol-Myers Squibb Company (at time of analysis), Princeton, NJ, ⁸Bristol-Myers Squibb Company, Princeton, NJ, ⁹Excelya, Boulogne-Billancourt, France, ¹⁰Southwestern Medical Center, Metroplex Clinical Research Center, Dallas, TX
Background/Purpose: In the 56-week (wk) induction period (IP) of the Phase IIIb Assessing Very Early RA Treatment (AVERT)-2 trial (NCT02504268), a greater proportion of patients…
Abstract Number: 0195 • ACR Convergence 2020
Epidemiology and Characteristics of Incident Rheumatoid Arthritis in Persons with and Without HIV
Jennifer Hanberg¹, Kathleen Akgun², Liana Fraenkel³, Evelyn Hsieh² and Amy Justice⁴, ¹Yale University School of Medicine; West Haven VA, Boston, MA, ²Yale University School of Medicine; West Haven VA, New Haven, CT, ³Yale School of Medicine; West Haven VA; Berkshire Medical Center, Lenox, MA, ⁴Yale University School of Medicine; Yale School of Public Health; West Haven VA, West Haven, CT
Background/Purpose: Rheumatoid arthritis (RA) is the most common chronic inflammatory arthritis, affecting 1-2% of the population. Estimates of the incidence of RA in patients with…
Abstract Number: 0993 • ACR Convergence 2020
N-linked Glycosylation of the Immunoglobulin Variable Domain Affects Antigen Binding and Autoreactive B Cell Activation
Theresa Kissel¹, Changrong Ge², Lise Hafkenscheid¹, Linda Slot¹, Marco Cavallari³, Joanneke Kwekkeboom⁴, Manfred Wuhrer¹, Thomas Huizinga¹, Hans Scherer¹, Michael Reth³, Rikard Holmdahl² and René Toes¹, ¹Leiden University Medical Center, Leiden, Netherlands, ²Karolinska Institutet, Solna, Sweden, ³University Freiburg, Freiburg, Germany, ⁴Leiden Univeristy Medical Center, Leiden, Netherlands
Background/Purpose: Anti-citrullinated protein antibodies, the hallmarking autoantibodies in Rheumatoid Arthritis (RA), are characterized by N-linked glycans in the variable domain (V-domain). The occurrence of these…
Abstract Number: 0481 • ACR Convergence 2020
Subclinical Synovitis in Arthralgia: How Often Does It Result in Clinical Arthritis? A Longitudinal Study to Reflect on Starting Points for DMARD Treatment
Cleo Rogier¹, Fenne Wouters², Laurette van Boheemen³, Dirkjan van Schaardenburg⁴, Pascal de Jong¹ and Annette van der Helm - van Mil⁵, ¹Erasmus MC, Rotterdam, Netherlands, ²Leiden University Medical Center, Leiden, Netherlands, ³Amsterdam Rheumatology and immunology Center | Reade, Amste, Netherlands, ⁴Amsterdam Rheumatology and immunology Center | Reade and Amsterdam UMC, Amsterdam, Netherlands, ⁵Leiden University Medical Center, Erasmus Medical Center, Leiden, Netherlands
Background/Purpose: According to guidelines, clinical arthritis is mandatory for diagnosing rheumatoid arthritis (RA). However, in the absence of clinical synovitis, imaging-detected subclinical synovitis is increasingly…
Abstract Number: 1456 • ACR Convergence 2020
Exploring the RA Bone Marrow Niche by Single-cell Technology to Identify Long Lived ACPA+ Plasma Cells
Khaled Amara¹, Aase Hensvold², Radha Thyagarajan¹, Lena Israelsson¹, Johanna Steen¹, Heidi Wähämaa¹, Monika Hansson¹, Marianne Engström¹, Annika van Vollenhoven¹, Anca Catrina², Vivianne Malmström³ and Caroline Grönwall¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ³Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: Autoantibodies is a hallmark of rheumatoid arthritis, placing the adaptive immune system and B-cells centrally in the pathogenesis. The anti-citrullinated autoantibodies (ACPA) detected in…
Abstract Number: 0490 • ACR Convergence 2020
Fine Specificity Anti-Citrullinated Protein Antibodies as Biomarkers for Prediction of Incident Rheumatoid Arthritis-Associated Interstitial Lung Disease
Vanessa Kronzer¹, Weixing Huang², Paul Dellaripa³, Sicong Huang⁴, Vivi Feathers², Bing Lu⁵, Christine Iannaccone⁴, Ritu Gill⁶, Hiroto Hatabu⁷, Mizuki Nishino⁷, Cynthia Crowson⁸, John Davis¹, William Robinson⁹, Tripta Rughwani⁹, Jeremy Sokolove¹⁰, Michael Weinblatt⁴, Nancy Shadick¹¹, Tracy J. Doyle¹² and Jeffrey Sparks¹¹, ¹Mayo Clinic, Rochester, MN, ²Division of Rheumatology, Inflammation, and Immunity; Brigham and Women’s Hospital and Harvard Medical School, Boston, ³Division of Rheumatology, Brigham and Women's Hospital, Boston, Massachusetts, USA, Boston, MA, ⁴Brigham and Women's Hospital, Boston, MA, ⁵Brigham and Women's Hospital and Harvard Medical School, Newton, MA, ⁶Beth Israel Deaconess Medical Center, Boston, MA, ⁷Department of Radiology; Brigham and Women’s Hospital, Boston, ⁸Mayo Clinic, Rochester, Minnesota, USA, Rochester, MN, ⁹Stanford University, Palo Alto, CA, ¹⁰Stanford University, Mountain View, CA, ¹¹Division of Rheumatology, Inflammation, and Immunity; Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, ¹²Brigham and Women's Hospital, West Roxbury, MA
Background/Purpose: Seropositivity for anti-citrullinated protein antibodies (ACPA) has been shown to increase risk for RA-associated interstitial lung disease (RA-ILD). However, RA-related autoantibodies used in clinical…
Abstract Number: 1720 • ACR Convergence 2020
Factors Associated with an Increased Risk of Imminent Rheumatoid Arthritis in ACPA+ Individuals
Hyoun-Ah Kim¹, Ryan Peterson², Gary Firestein³, David Boyle⁴, Jane Buckner⁵, Sylvia Posso⁶, Eddie James⁵, William Robinson⁷, Jaron Arbet², LauraKay Moss⁸, Roger Gilmore⁸, Lindsay Hartje⁸, Saman Barzideh⁸, Jennifer Seifert⁹, Navin Rao¹⁰, Frédéric Baribaud¹¹, Sunil Nagpal¹², Alyssa Johnson¹³, V Michael Holers¹⁴ and Kevin D. Deane¹⁵, ¹University of Colorado Anschutz Medical Campus and Ajou University School of Medicine, Aurora, CO, ²Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO, ³University of California, San Diego, La Jolla, CA, ⁴UC San Diego, San Diego, CA, ⁵Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁶Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁷Stanford University, Palo Alto, CA, ⁸University of Colorado Anschutz Medical Campus, Aurora, CO, ⁹Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Littleton, CO, ¹⁰Janssen R&D, Spring House, PA, ¹¹Janssen Research & Development, LLC, Spring House, PA, ¹²Janssen Reserach and Development, Spring House, PA, ¹³Janssen Research and Development, Spring House, PA, ¹⁴Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Colorado, ¹⁵2 Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Colorado
Background/Purpose: Individuals at high-risk for future rheumatoid arthritis (RA) may be identified by screening for circulating RA-related autoantibodies including antibodies to citrullinated protein antigens (ACPA).…
Abstract Number: 0743 • ACR Convergence 2020
Higher Baseline Fine-Specificity ACPAs Predict Greater Treatment Response with Abatacept + MTX versus MTX Monotherapy in Seropositive RA: A Post Hoc Analysis
William Robinson¹, Chun Wu², Sarah Hu², Sean Connolly² and Sumanta Mukherjee², ¹Stanford University School of Medicine, Stanford, CT, ²Bristol-Myers Squibb Company, Princeton, NJ
Background/Purpose: ACPAs are sensitive, highly specific markers of RA. Current tests cannot differentiate ACPA+ RA subtypes. Fine-specificity ACPAs (FS) can distinguish between ACPA+ RA subtypes…
Abstract Number: 1721 • ACR Convergence 2020
Increasing Autoantibody Positivity During Pre-RA Is Associated with the Imminent Development of Classifiable RA
Heinrich-Karl Greenblatt¹, Ted Mikuls², Jess Edison³, Marie Feser⁴, Mark Parish⁵, LauraKay Moss⁵, Elizabeth Mewshaw⁶ and Kevin D. Deane⁷, ¹University of Colorado School of Medicine, Aurora, CO, ²University of Nebraska Medical Center, Omaha, NE, ³Walter Reed National Military Medical Center, Bethesda, ⁴Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Colorado, ⁵University of Colorado Anschutz Medical Campus, Aurora, CO, ⁶Walter Reed National Military Medical Center, Bethesda, MD, ⁷2 Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Colorado
Background/Purpose: Autoantibodies including rheumatoid factor (RF) and antibodies to citrullinated protein antigens (ACPA) may be elevated during a period that can be termed ‘Pre-RA’. In…

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