Abstracts tagged "B-Cell Targets"

Abstract Number: 2191 • ACR Convergence 2023
Efficacy of anti-CD38 Treatment with Daratumumab in Two Cases of Refractory and Severe Sjogren Disease
Gaetane Nocturne¹, Mathilde di Filippo², Oriane Marmontel², Pascale Chretien¹, Roman Krzysiek¹, François Lifermann³, Nawal Rahal¹, Rakiba Belkhir⁴, Philippe Moulin² and Xavier Mariette⁵, ¹APHP, Le Kremlin-Bicêtre, France, ²Hospices Civils de Lyon, Lyon, France, ³Department of Internal Medicine, Centre Hospitalier de Dax, Dax, France, ⁴Rheumatology Department, Université Paris-Saclay, INSERM U1184, Hôpital Bicêtre, APHP, FHU CARE, Le Kremlin-Bicêtre, France, ⁵Université Paris-Saclay, Le Kremlin-Bicêtre, France
Background/Purpose: Sjögren's disease (Sjo) is a systemic autoimmune disease. In 80% of the patients, Sjo is responsible for dryness, fatigue, and joint pain. In 10%…
Abstract Number: 0425 • ACR Convergence 2023
Long-term Safety of Rituximab in Rheumatoid Arthritis: A Systematic Review and Meta-analysis
Ioasaf Karafotias, Joshua Rothwell, Maryam Adas, Bechman Katie, Mark Russell, Sam Norton and James Galloway, King's College London, London, United Kingdom
Background/Purpose: Rituximab targets CD20-bearing B cells and is used to treat Rheumatoid Arthritis (RA). Common Variable Immune Deficiency (CVID) is a primary immune deficiency syndrome…
Abstract Number: 0956 • ACR Convergence 2023
Effects of B Cell Depletion by CD19-targeted CAR-T Cells in a Murine Model of Systemic Sclerosis
Jérôme Avouac¹, Anne Cauvet², Cindy Orvain³, Morgane boulch⁴, Philippe Bousso⁴ and Yannick ALLANORE⁵, ¹Service de Rhumatologie, Hôpital Cochin, AP-HP.Centre – Université Paris Cité, Paris, France, ²INSERM U1016, Paris, France, ³INSERM U1016, Paris, ⁴Institut Pasteur, Paris, France, ⁵Université Paris Cité, Paris, France
Background/Purpose: Chimeric antigen receptor (CAR)-T cells represent a potentially curative strategy for B cell malignancies. A first successful clinical experience has been recently reported in…
Abstract Number: 2310 • ACR Convergence 2023
Machine Learning Approaches for Prediction of Renal Flares in Systemic Lupus Erythematosus: Knowledge-Driven Models Outperformed Data-Driven Models
Nursen Cetrez¹, Julius Lindblom¹, Raffaele Da Mutten², Dionysis Nikolopoulos² and Ioannis Parodis¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Karolinska Institutet and Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden
Background/Purpose: Renal flares in patients with SLE result in significant nephron loss. Thus, identification of reliable early signals of impending renal flares is anticipated to…
Abstract Number: 111 • 2023 Pediatric Rheumatology Symposium
Monitoring for Hypogammaglobulinemia After B-Cell Therapy in an Academic Pediatric Center
Omar Mostafa, Sharon Bout-Tabaku, Buthaina Al-Adba, Ahmad Kaddourah, Abubakr Imam, Ibrahim Shatat and Mohammed Yousuf Karim, Sidra Medicine, Ar-Rayyan, Qatar
Background/Purpose: Hypogammaglobulinemia is an under-recognized complication of B-cell targeted therapies (BCTT) in both autoimmune diseases (AID) and malignancy. Hypogammaglobulinemia may be transient or persistent, and…
Abstract Number: L07 • ACR Convergence 2022
Telitacicept, a Human Recombinant Fusion Protein Targeting B Lymphocyte Stimulator (BlyS) and a Proliferation-Inducing Ligand (APRIL), in Systemic Lupus Erythematosus (SLE): Results of a Phase 3 Study
Di Wu¹, Jing Li¹, Dong Xu¹, Li Wang¹, Jianmin Fang², Dan Ross³ and Fengchun Zhang⁴, ¹Department of Rheumatology and Clinical Immunology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China, Beijing, China, ²Shanghai Tongji Hospital, Tongji University, Shanghai 200065, China School of Life Science and Technology, Tongji University, Shanghai 200092, China, Shanghai, China, ³RemeGen Co., San Diego, CA, ⁴Department of Rheumatology and Clinical Immunology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China; Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China, Beijing, China
Background/Purpose: Telitacicept is a novel recombinant fusion protein constructed with the extracellular domain of the human transmembrane activator and calcium modulator and cyclophilin ligand interactor…
Abstract Number: L16 • ACR Convergence 2022
Innovative Anti-pneumococcal Vaccine Strategies versus Standard Vaccination Regimen in Patients with ANCA-associated Vasculitides Receiving Rituximab Therapy: A Multicenter Randomized Controlled Trial (PNEUMOVAS)
Benjamin Terrier¹, Laura Richert², Grégory Pugnet³, Olivier Aumaitre⁴, Olivier Moranne⁵, Elisabeth Diot⁶, Alexandre Karras⁷, Fabrice Bonnet⁸, Claire De Moreuil⁹, Eric Hachulla¹⁰, Thomas Le Gallou¹¹, Céline Lebas¹⁰, Francois Maurier¹², Cédric Rafat⁷, Maxime Samson¹³, Jean-Francois Augusto¹⁴, Grégoire Couvrat-Devergne¹⁵, Cécile Janssen¹⁶, Thierry Martin¹⁷, Thomas Quemeneur¹⁸, Pierre-Louis Caron¹⁹, Cécile-Audrey Durel²⁰, Khalil El Karoui⁷, Aurélie Grados²¹, Mathieu Puyade²², Virginie Rieu⁴, Yurdagul Uzunhan²³, Jean-Francois Viallard⁸, Xavier Puéchal⁷, Loic Guillevin⁷, Noémie Huchet⁸, Hendy Abdoul⁷, Carine Bellera⁸, Frédéric Batteux⁷ and Odile Launay⁷, ¹Cochin Hospital, Paris, France, ²EUCLID, Bordeaux, France, ³CHU, Toulouse, France, ⁴CHU, Clermont-Ferrand, France, ⁵CHU, Nimes, France, ⁶CHU, Tours, France, ⁷CHU, Paris, France, ⁸CHU, Bordeaux, France, ⁹CHU, Brest, France, ¹⁰CHU, Lille, France, ¹¹CHU, Rennes, France, ¹²CH, Metz, France, ¹³CHU, Dijon, France, ¹⁴CHU, Angers, France, ¹⁵CH, La Roche sur Yon, France, ¹⁶CH, Annecy, France, ¹⁷CHU, Strasbourg, France, ¹⁸CH, Valenciennes, France, ¹⁹CHU, Grenoble, France, ²⁰CHU, Lyon, France, ²¹CH, Niot, France, ²²CHU, Poitiers, France, ²³CHU, Bobigny, France
Background/Purpose: Patients receiving glucocorticoids plus rituximab (RTX) show an increased risk of infection, especially invasive pneumococcal infections. Vaccine responses to influenza, Streptococcus pneumoniae and SARS-CoV-2…
Abstract Number: 0754 • ACR Convergence 2022
Persistent but Disturbed Germinal Center Reaction Among 3rd SARS-CoV-2 Vaccination After Rituximab Exposure
Ana-Luisa Stefanski¹, Hector Rincon-Arevalo¹, Eva Schrezenmeier², Franziska Szelinski¹, Jacob Ritter³, Yidan Chen¹, Christian Meisel⁴, Hubert Schrezenmeier⁵, Andreia C. Lino⁶ and Thomas Dörner¹, ¹Department of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany, ²Department of Nephrology and Medical Intensive Care, Charité Universitätsmedizin Berlin; DRFZ Berlin; Berlin Institute of Health Charité Universitätsmedizin Berlin, Berlin, Germany, ³Department of Rheumatology and Clinical Immunology, Berlin Institute of Health Charité Universitätsmedizin Berlin, Berlin, Germany, ⁴Department of Medical Immunology, Charité University Medicine and Labor Berlin-Charité Vivantes, Berlin, Germany, ⁵Institute of Transfusion Medicine, Ulm University, Ulm, Germany and Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany, ⁶Deutsches Rheuma-Forschungszentrum Berlin, Berlin, Germany
Background/Purpose: Durable vaccine-mediated immunity relies on the generation of long-lived plasma cells and memory B cells (MBCs), differentiating upon germinal center (GC) reactions. SARS-CoV-2 mRNA…
Abstract Number: 2037 • ACR Convergence 2022
Childhood-onset Sjögren’s Syndrome Is Characterised by Dysregulated of B and T Memory Cell Frequencies: A Pilot Immunophenotyping Analysis of This Rare Disease Phenotype
Lucia Martin-Gutierrez¹, Hannah Peckham², Anna Radziszewska², Junjie Peng², Oluwatomisin Nettey², Elizabeth Jury³ and Coziana Ciurtin⁴, ¹Centre for Rheumatology Research, Department of Medicine,University College London, London, ²Centre for Adolescent Rheumatology Versus Arthritis, Department of Medicine, University College London, London, ³University College London, London, United Kingdom, ⁴Centre for Adolescent Rheumatology Versus Arthritis, Department of Medicine, University College London, London, United Kingdom
Background/Purpose: Sjögren's syndrome (SS) is an autoimmune rheumatic disease characterised by dryness resulting from chronic lymphocytic infiltration of the exocrine glands and extra glandular manifestations…
Abstract Number: 0977 • ACR Convergence 2022
Effect of Belimumab (BEL) on B-cells and Serological Biomarkers for SLE: Results of the Large Integrated Analysis BEL Summary of Lupus Efficacy (Be-SLE)
Jason S Knight¹, Winn Walter Chatham², Christine Henning³, Julia H N Harris⁴, Andre Van Maurik⁵, Roger A Levy⁶ and David Pisetsky⁷, ¹University of Michigan, Division of Rheumatology, Ann Arbor, MI, ²University of Alabama at Birmingham, Clinical Immunology and Rheumatology, Birmingham, AL, ³GlaxoSmithKline, Global Medical Affairs, Durham, NC, ⁴GlaxoSmithKline, Immunology Biostatistics, Brentford, United Kingdom, ⁵GlaxoSmithKline, Clinical Pharmacology and Experimental Medicine, Stevenage, United Kingdom, ⁶GlaxoSmithKline, Global Medical Affairs, Collegeville, PA, ⁷Duke University Medical Center, Durham, NC
Background/Purpose: Serological and cellular biomarkers are used in clinical practice to guide the management of SLE. Increased levels of anti-dsDNA and decreased levels of complement…
Abstract Number: 2065 • ACR Convergence 2022
Sustained B Cell Depletion in Lupus Nephritis Patients After Treatment with a B Cell Agent Is Associated with Fewer Disease Flares
Diane Zisa¹, Jeffrey Zhang-Sun¹, Paul Christos² and Kyriakos Kirou¹, ¹Hospital for Special Surgery, New York, NY, ²Weill Cornell Medicine/New York-Presbyterian, New York, NY
Background/Purpose: B cell targeting agents (BCA), including belimumab (BEL) and rituximab (RTX), have been used with success in lupus nephritis (LN) patients, though identifying patients…
Abstract Number: 0978 • ACR Convergence 2022
Belimumab After Rituximab Targets IgA2 Anti-dsDNA Antibody Production and Shifts Repopulating B-cells Towards an Anergic, Non-pathogenic Phenotype in Systemic Lupus Erythematosus
Muhammad Shipa¹, liliana ribeiro santos², Dao X Nguyen¹, Andrew Embleton-Thirsk¹, Mariea parvaz¹, David Isenberg¹, Caroline Gordon³ and Michael Ehrenstein¹, ¹University College London, London, United Kingdom, ²University College London, London, ³Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
Background/Purpose: The results from the BEAT-lupus trial comparing belimumab vs placebo, both after rituximab in systemic lupus erythematosus (SLE) have recently been reported (1). We…
Abstract Number: 2082 • ACR Convergence 2022
A Prospective Study on Long-Term Clinical Outcomes of Patients with Lupus Nephritis Treated with an Intensified B-Cell Depletion Protocol Without Maintenance Therapy
Dario Roccatello¹, Savino Sciascia², Carla Naretto¹, Mirella Alpa¹, Roberta Fenoglio¹, Michela Ferro¹, Giacomo Quattrocchio¹, Elena Rubini¹, Elnaz Rahbani¹, Vittorio Modena¹ and Daniela Rossi¹, ¹University of Turin, Turin, Italy, ²University of Turin, Torino, Italy
Background/Purpose: We aimed to investigate the safety and efficacy of an intensified B-cell depletion induction therapy (IBCDT) without immunosuppressive maintenance regimen compared with standard of…
Abstract Number: 0990 • ACR Convergence 2022
KPG-818, a Novel Cereblon (CRBN) Modulator, in Patients with SLE: Results of a Phase Ib Multiple Ascending Dose Study
RAMESH C. GUPTA¹, Paul Lunseth², Robert Levin³, Philip Waller⁴, Amber Khan⁵, Lester Hernandez⁵, Kai Wei⁶, Baisong Liao⁶, Tao Wang⁷, Kaiyue Hao⁷, Yanjiao Yin⁷ and Yong Guo⁷, ¹Shelby Research LLC, Memphis, TN, ²Clinical Research of West Florida, Tampa, FL, ³Clinical Research of West Florida. Inc., Clearwater, FL, ⁴Accurate Clinical Research, Houston, TX, ⁵Accurate Clinical Management, LLC., Houston, TX, ⁶Kangpu Biopharmaceuticals, Ltd., Shanghai, China, ⁷Kangpu Biopharmaceuticals, Ltd, Shanghai, China
Background/Purpose: KPG-818 is a novel CRL4-CRBN E3 ubiquitin ligase modulator that binds to CRBN with high affinity and leads to rapid and effective degradation of…
Abstract Number: 1080 • ACR Convergence 2022
Performance of Risk Prediction Models for Relapse and Severe Infection at the End of 18-month Rituximab Maintenance Therapy in ANCA-associated Vasculitides: Data from the MAINRITSAN Trials
Florence Delestre¹, Pierre Charles², Loïc Guillevin³, Raphaël Porcher⁴ and Benjamin Terrier³, ¹cochin Hospital, Paris, France, ²Institut Mutualiste Montsouris, Paris, France, ³National Referral Center for Rare Systemic Autoimmune Diseases, Cochin Hospital, Paris, France, ⁴Université Paris Cité, Hôtel-Dieu, Paris, France
Background/Purpose: Long-term follow-up analysis of the three MAINRITSAN trials confirmed the efficacy of rituximab (RTX) in preventing relapses in ANCA-associated vasculitis (AAV), especially RTX administration…

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