Abstracts tagged "B-Cell Targets"

Abstract Number: 1677 • ACR Convergence 2022
Chimeric Autoantigen-T Cell Receptor (CATCR)-T Cell Therapies to Selectively Target Autoreactive B Cells
Brian J. Mog¹, Elana R. Shaw¹, Michael S. Hwang¹, Alexander H. Pearlman¹, Sarah R. DiNapoli¹, Suman Paul¹, Chetan Bettegowda¹, Nickolas Papadopoulos¹, Sandra B. Gabelli¹, Michelle Petri², Antony Rosen¹, Shibin Zhou¹, Kenneth W. Kinzler¹, Bert Vogelstein¹ and Maximilian F. Konig¹, ¹The Johns Hopkins University School of Medicine, Baltimore, MD, ²Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD
Background/Purpose: Chimeric antigen receptor (CAR)-T cell therapies have revolutionized the treatment of cancer and can be curative. CD19-targeted CAR-T cells hold promise for the treatment…
Abstract Number: 0644 • ACR Convergence 2022
Long-lived Plasma Cells in the Lupus Bone Marrow Are Imprinted by Interferon
Jennifer Barnas¹, Diana Alzamareh², Neha Nandedkar-Kulkarni², Jennifer Albrecht², Nida Meednu², Cameron Baker², Andrew McDavid¹ and Jennifer Anolik², ¹University of Rochester, Rochester, NY, ²University of Rochester Medical Center, Rochester, NY
Background/Purpose: Systemic lupus erythematous (SLE) is a complex autoimmune disorder with heterogeneous disease presentation and a multi-pronged pathogenesis. Although autoreactive plasma cells (PC) play a…
Abstract Number: 1869 • ACR Convergence 2022
Looking for BlyS(BAFF) in Juvenile Dermatomyositis: A New Biomarker of Disease Activity
Christopher Costin¹, Gabrielle Morgan², Amer Khojah³ and Lauren Pachman⁴, ¹Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ²Ann & Robert H. Lurie Children's Hospital of Chicago and Northwestern University Feinberg School of Medicine, Chicago, IL, ³Umm Al-Qura University, Makkah, Saudi Arabia, ⁴Northwestern's Feinberg School of Medicine. Ann and Robert H. Lurie Children's Hospital of Chicago; Stanley Manne Children's Research Institute of Chicago, Lake Forest, IL
Background/Purpose: B Cell Activating Factor (BAFF) is a cytokine that drives B Cell proliferation and maturation. B Cells remain an important factor in JDM immune…
Abstract Number: 0720 • ACR Convergence 2022
Risk-Benefit Assessment of Primary Prophylaxis for Pneumocystis Pneumonia in Patents with Rheumatic Diseases Exposed to Rituximab: A Multicenter Cohort Study
Jun Won Park¹, Jeffrey Curtis², Min Jung Kim³, You-Jung Ha⁴, Yun Jong Lee⁴ and Eun Bong Lee¹, ¹Seoul National University Hospital, Seoul, Republic of Korea, ²Division of Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ³Seoul Metropolitan Government Boramae Medical center, Dongjak-gu, Seoul, Republic of Korea, ⁴Seoul National University Bundang Hospital, Seongnam, Republic of Korea
Background/Purpose: Although previous studies suggested that primary prophylaxis for pneumocystis pneumonia (PJP) during rituximab treatment could be beneficial, it is uncertain whether this strategy should…
Abstract Number: 1872 • ACR Convergence 2022
Outcome of Idiopathic Inflammatory Myositis Patients Who Received Rituximab: A Single Centre Retrospective Study
Fahidah Alenzi¹, Shirish Sangle² and Sanna Giovanni², ¹Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia, ²Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
Background/Purpose: Idiopathic inflammatory myositis (IIM) includes a spectrum of a rare autoimmune disease characterized by proximal muscle weakness, variable skin manifestation and extra muscular manifestations.…
Abstract Number: L03 • ACR Convergence 2021
COVID-19 Vaccine Antibody Responses in Patients Treated with B-Cell Agents Depend on B-Cell Counts at Time of Vaccine
Kyriakos Kirou and Jeffrey Zhang-Sun, Hospital for Special Surgery, New York, NY
Background/Purpose: Optimal COVID-19 vaccine responses are necessary to protect against severe infection. Patients with systemic rheumatic diseases (SRD) are at risk for not mounting adequate…
Abstract Number: L13 • ACR Convergence 2021
Efficacy and Safety of Subcutaneous Belimumab (BEL) and Rituximab (RTX) Sequential Therapy in Patients with Systemic Lupus Erythematosus: The Phase 3, Randomized, Placebo-Controlled BLISS-BELIEVE Study
Cynthia Aranow¹, Cornelia Allaart², Zahir Amoura³, Ian N Bruce⁴, Patricia Cagnoli⁵, Richard Furie¹, Paul Peter Tak⁶, Murray Urowitz⁷, Ronald van Vollenhoven⁸, Kenneth L Clark⁶, Mark Daniels⁹, Norma Lynn Fox¹⁰, Yun Irene Gregan¹⁰, James Groark¹¹, Robert B Henderson⁹, Mary Oldham⁹, Don Shanahan⁹, Andre van Maurik⁹, David A Roth¹⁰ and YK Onno Teng², ¹Feinstein Institutes for Medical Research, Northwell Health, Great Neck, NY, ²Leiden University Medical Center, Leiden, Netherlands, ³Centre National de reference pour le Lupus, Service de Medecine Interne 2, Institut E3M, Hopital Pitié-Salpétrière, Paris, France, ⁴NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Trust and Centre for Musculoskeletal Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom, ⁵University of Michigan Medical Center, Ann Arbor, MI, ⁶GlaxoSmithKline (At the time of the author's contribution to this study), Stevenage, United Kingdom, ⁷Toronto Western Hospital, University of Toronto, Lupus Clinic, Toronto, ON, Canada, ⁸Amsterdam University Medical Center, Amsterdam Rheumatology Center, Amsterdam, Netherlands, ⁹GlaxoSmithKline, Stevenage, United Kingdom, ¹⁰GlaxoSmithKline, Collegeville, PA, ¹¹GlaxoSmithKline (At the time of the author's contribution to this study), Collegeville, PA
Background/Purpose: Disease control remains an unmet need in SLE. The rationale for sequential BEL and RTX therapy in SLE was previously published.1 This study evaluated…
Abstract Number: L21 • ACR Convergence 2021
Rituximab versus Conventional Therapeutic Strategy for Remission Induction in Eosinophilic Granulomatosis with Polyangiitis: A Double-blind, Randomized, Controlled Trial
Benjamin Terrier¹, Gregory Pugnet², Claire de Moreuil³, Bernard Bonnotte⁴, Ygal Benhamou⁵, Elisabeth Diot⁶, Dominique Chauveau², Pierre Duffau⁷, Nicolas Limal⁸, Antoine Neel⁹, Geoffrey Urbanski¹⁰, Noemie Jourde-Chiche¹¹, Nicolas Martin-Silva¹², Francois Maurier¹³, Arsene Mekinian¹⁴, Nicolas Schleinitz¹¹, Felix Ackermann¹⁵, Anne-Laure Fauchais¹⁶, Antoine Froissart¹⁷, Thomas Le Gallou¹⁸, Yurdagul Uzunhan¹⁹, Jean-Francois Viallard⁷, Alice Berezne²⁰, Laurent Chiche²¹, Bruno Crestani¹⁴, Guillaume Direz²², Cecile-Audrey Durel²³, Pascal Godmer²⁴, Jean-Emmanuel Kahn²⁵, Marc Lambert²⁶, Thomas Quemeneur²⁷, Jacques Cadranel¹⁴, Pierre Charles²⁸, Antoine Dossier¹⁴, Lea Jilet²⁹, Loic Guillevin¹⁴, Hendy Abdoul²⁹ and Xavier Puechal¹⁴, ¹Cochin Hospital, Paris, France, ²CHU, Toulouse, France, ³CHU, Brest, France, ⁴CHU, Dijon, France, ⁵CHU, Rouen, France, ⁶CHU, Tours, France, ⁷CHU, Bordeaux, France, ⁸CHU, Creteil, France, ⁹CHU, Nantes, France, ¹⁰CHU, Angers, France, ¹¹CHU, Marseille, France, ¹²CHU, Caen, France, ¹³CH, Metz, France, ¹⁴CHU, Paris, France, ¹⁵Hopital Foch, Suresnes, France, ¹⁶CHU, Limoges, France, ¹⁷CHIC, Creteil, France, ¹⁸CHU, Rennes, France, ¹⁹CHU, Bobigny, France, ²⁰CH, Annecy, France, ²¹CH, Marseille, France, ²²CH, Le Mans, France, ²³CHU, Lyon, France, ²⁴CH, Vannes, France, ²⁵CHU, Boulogne, France, ²⁶CHRU, Lille, France, ²⁷CH, Valenciennes, France, ²⁸CH, Paris, France, ²⁹URC, Paris, France
Background/Purpose: Eosinophilic granulomatosis with polyangiitis (EGPA) is an eosinophilic ANCA-associated vasculitis.Glucocorticoids, alone or in combination with cyclophosphamide in severe forms, induce remission in most patients…
Abstract Number: 1443 • ACR Convergence 2021
Long-term Effectiveness of Ultra-Low Doses of Rituximab in Rheumatoid Arthritis
Nathan den Broeder¹, Lise Verhoef², Yael De Man³, Marc Kok⁴, Rogier Thurlings⁵, Wilfred van der Weele⁶, Bart van den Bemt⁷, Frank van den Hoogen⁸, Aatke van der Maas⁹ and Alfons den Broeder¹⁰, ¹Radboud University Medical Centre, Nijmegen, Gelderland, Netherlands, ²Sint Maartenskliniek, Nijmegen, Netherlands, ³Ziekenhuisgroep Twente (Hospital Group Twente), Borne, Netherlands, ⁴Maasstad Hospital, Rotterdam, Netherlands, ⁵Radboud University Medical Centre, Nijmegen, Netherlands, ⁶Reade, Amsterdam, Netherlands, ⁷Sint Maartenskliniek; Radboud University Medical Center, Ubbergen, Netherlands, ⁸Sint Maartenskliniek, Ubbergen, Gelderland, Netherlands, ⁹St Maartenskliniek, Nijmegen, Gelderland, Netherlands, ¹⁰Sint Maartenskliniek, Nijmegen, Gelderland, Netherlands
Background/Purpose: The optimal rituximab (RTX) dose for the treatment of rheumatoid arthritis remains unclear. RTX treatment of 1000mg per 6 months and 2000mg per 6…
Abstract Number: 1528 • ACR Convergence 2021
Clinical Consequences of Hepatitis B Core Antibody Positivity After IVIG Administration
William West¹, Therese Posas-Mendoza², Jerald Zakem³, William Davis¹ and Robert Quinet⁴, ¹Ochsner Medical Center, New Orleans, LA, ²Ochsner Clinic Foundation, New Orleans, LA, ³Ochsner Health Systems, Metairie, LA, ⁴Ochsner Health, River Ridge, LA
Background/Purpose: Intravenous immunoglobulin (IVIG) is a blood product created by pooling of donor plasma that is used for a wide range of indications. IVIG is…
Abstract Number: 1732 • ACR Convergence 2021
Effects of B Cell Activating Factors/B Lymphocyte Stimulator Inhibitors Added to Standard of Care on Infection in Patients with Systemic Lupus Erythematosus: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Ruoning Ni¹, Jiayi Zheng² and Ruru Guo³, ¹Saint Agnes Healthcare, Baltimore, MD, ²Department of Rheumatology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (People's Republic), ³Renji Hospital, Shanghai, China (People's Republic)
Background/Purpose: The efficacy of B cell activator factor/B lymphocyte stimulator inhibitors (BAFFi/BLySi) for systemic lupus erythematosus (SLE) has been proven in clinical trials. However, it…
Abstract Number: 1905 • ACR Convergence 2021
CD11c+ Expression Associates with IFN-λ Responsiveness in Human B Cells with Clinical Implications for SLE
Jennifer Barnas¹, Jennifer Barnard², Cameron Baker², Nida Meednu², Andrew McDavid¹, R. John Looney¹ and Jennifer Anolik², ¹University of Rochester, Rochester, NY, ²University of Rochester Medical Center, Rochester, NY
Background/Purpose: Type I interferon (IFN), namely IFN- α, and B cell aberrations are long recognized in systemic lupus erythematosus (SLE) pathogenesis. Type I IFN receptor…
Abstract Number: 0004 • ACR Convergence 2021
Unappreciated Systemic Metabolic Functions of the Canonical B Cell Cytokines, BAFF and APRIL: Regulation of Lipolysis and Non-shivering Thermogenesis and Protection from Obesogenic Diet Induced Weight Gain
Isaac Harley¹, Calvin Chan², Paul Pfluger³, Trompette Aurelien⁴, Traci Stankiewicz⁵, Jessica Allen⁵, Maria Moreno-Fernandez⁵, Michelle Damen⁵, Jarren Oates⁵, Pablo Alarcon⁵, Jessica Doll⁶, Matthew Flick⁷, Leah Flick⁸, Juan Sanchez-Gurmaches⁹, Rajib Mukherjee⁹, Rebekah Karns¹⁰, Michael Helmrath¹¹, Thomas Inge¹², Stuart Weisberg¹³, Sunje Pamp¹⁴, David Relman¹⁵, Randy Seeley¹⁶, Matthias Tschoep¹⁷, Chris Karp¹⁸ and Senad Divanovic⁸, ¹University of Colorado Anschutz Medical Campus, Aurora, CO, ²University of Cincinnati, Cincinnati, OH, ³Technical University of Munich, Munich, Germany, ⁴Le Centre hospitalier universitaire vaudois, Lausanne, Switzerland, ⁵Cincinnati Children's Hospital Medical Center, Division of Immunobiology, Cincinnati, OH, ⁶Cincinnati Children's Hospital Medical Center, Division of Immunobiology, Cincinn, OH, ⁷Division of Experimental Hematology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ⁸Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁹Division of Endocrinology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹⁰Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹¹Pediatric General and Thoracic Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹²Department of Surgery, Children’s Hospital Colorado, Aurora, CO, ¹³Columbia University Medical Center, New York, NY, USA, New York, NY, ¹⁴Danmarks Tekniske Universitet, Lyngby, Denmark, ¹⁵Department: Medicine - Med/Infectious Diseases - Stanford University, Stanford, ¹⁶Department of Surgery, Internal Medicine and Nutritional Sciences, University of Michigan, Ann Arbor, MI, ¹⁷Division of Metabolic Diseases, Technische Universität München, Munich, Germany, ¹⁸Division of Molecular Immunology, Cincinnati Children’s Hospital Medical Center, Cincinnati
Background/Purpose: The impact of immune mediators on weight homeostasis and systemic metabolism remains underdefined. Interrogation of resistance to diet-induced obesity in mice lacking a negative…
Abstract Number: 0496 • ACR Convergence 2021
Safety and Efficacy of Rituximab for Systemic Sclerosis: A Double-Blind, Parallel-Group Comparison, Investigators Initiated Confirmatory Randomized Clinical Trial (DESIRES Study)
Satoshi Ebata¹, Ayumi Yoshizaki¹, Koji Oba², Kosuke Kashiwabara³, Keiko Ueda³, Yukari Umemura⁴, Takeyuki Watadani⁵, Takemichi Fukasawa¹, Shunsuke Miura¹, Asako Yoshizaki-Ogawa¹, Yoshihide Asano¹, Naoko Okiyama⁶, Masanari Kodera⁷, Minoru Hasegawa⁸ and Shinichi Sato¹, ¹Department of Dermatology, The University of Tokyo, Graduate School of Medicine, Tokyo, Japan, ²Department of Biostatistics, School of Public Health, Graduate School of Medicine, and Interfaculty Initiative in Information Studies, The University of Tokyo, Tokyo, Japan, ³Clinical Research Support Center, The Tokyo University Hospital, Tokyo, Japan, ⁴Biostatistics Section, Department of Data Science, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan, ⁵Department of Diagnostic Radiology, The University of Tokyo, Graduate School of Medicine, Tokyo, Japan., Tokyo, Japan, ⁶Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan., Ibaraki, Japan, ⁷Department of Dermatology, Japan Community Health Care Organization Chukyo Hospital, Aichi, Japan., Aichi, Japan, ⁸Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan., Fukui, Japan
Background/Purpose: Systemic sclerosis (SSc) is a systemic autoimmune disease belonging to collagen diseases, characterized by fibrosis of various organs including the skin and lungs, and…
Abstract Number: 0648 • ACR Convergence 2021
Improving Post-Rituximab Hypogammaglobulinemia Risk Assessments: A Fellows’ Quality Improvement Initiative
Beth Rutstein¹, Melissa Argraves², Atiye Bilgic Dagci², Sarah Bayefsky², Julia Rood², Julie Chase³, Jay Mehta², Melissa Lerman², Cory Stingl⁴ and Jon Burnham², ¹Children's Hospital of Philadelphia, Wynnewood, PA, ²Children's Hospital of Philadelphia, Philadelphia, PA, ³The Children's Hospital of Philadelphia, Philadelphia, PA, ⁴Children's Hospital of Philadelphia, Durham, NC
Background/Purpose: Hypogammaglobulinemia following rituximab therapy is a potentially severe complication that can lead to infection-related morbidity and mortality. If recognized, clinicians may prevent infections by…

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