Abstracts tagged "B-Cell Targets"

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: 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: 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: 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…
Abstract Number: 1083 • ACR Convergence 2022
Treatment of ANCA-associated Vasculitis with Extreme Impairment of Renal Function: A Case-Control Study Comparing an Intensive B Cell Depletion Regimen with the Standard of Care Using Oral Cyclophosphamide
Dario Roccatello¹, Savino Sciascia², Stefano Murgia¹, Giacomo Quattrocchio¹, Michela Ferro¹, Emanuele De Simone¹, Carla Naretto¹, Antonella Barreca¹, Daniela Rossi¹, Vittorio Modena¹ and Roberta Fenoglio¹, ¹University of Turin, Turin, Italy, ²University of Turin, Torino, Italy
Background/Purpose: Rituximab (RTX), an anti-CD20 monoclonal antibody, has shown to be an effective induction treatment for small-vessel vasculitis associated with antineutrophil cytoplasm antibodies (AAV) in…
Abstract Number: 1084 • ACR Convergence 2022
Rituximab versus Cyclophosphamide for Induction Therapy in Granulomatosis with Polyangiitis: A Target Trial Emulation Study
Xavier Puéchal¹, Michele Iudici², Elodie Perrodeau³, bernard bonnotte⁴, Francois Lifermann⁵, Thomas Le Gallou⁶, Alexandre Karras⁷, Claire Blanchard-Delaunay⁸, Thomas Quéméneur⁹, Achille Aouba¹⁰, Olivier Aumaître¹¹, Vincent Cottin¹², Mohamed Hamidou¹³, Marc Ruivard¹¹, Pascal Cohen¹, Luc Mouthon¹, Loïc Guillevin¹, Philippe Ravaud³, Raphaël Porcher³ and Benjamin Terrier¹, ¹National Referral Center for Rare Systemic Autoimmune Diseases, Cochin Hospital, Paris, France, ²Division of Rheumatology, Geneva University Hospitals, Geneva, Switzerland, ³Université Paris Cité, Hôtel-Dieu, Paris, France, ⁴Centre Hospitalo-Universitaire de Dijon, Dijon, France, ⁵Dax Hospital, Dax, France, ⁶Rennes Sud University Hospital, Rennes, France, ⁷HEGP, Paris, France, ⁸Niort Hospital, Niort, France, ⁹Valenciennes Hospital, Valenciennes, France, ¹⁰Department of Internal Medicine, UR4650 PSIR, Normandie Univ, UNICAEN, CHU de Caen Normandie, Caen, France, ¹¹Clermont Ferrand University Hospital, Clermont-Ferrand, France, ¹²Coordinating Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, University of Lyon, INRAE, Lyon, France, ¹³Nantes University Hospital, Nantes, France
Background/Purpose: Randomized controlled trials showed rituximab (RTX)'s non-inferiority to cyclophosphamide (CYC) for induction therapy of ANCA-associated vasculitis and neither treatment was favoured in granulomatosis with…
Abstract Number: 0008 • ACR Convergence 2022
CD11c+ T-Bet+ B Cells Traffic to Human Bone Marrow
Jennifer Barnas¹, Diana Alzamareh², Nida Meednu² and Jennifer Anolik², ¹University of Rochester, Rochester, NY, ²University of Rochester Medical Center, Rochester, NY
Background/Purpose: CD11c+ age/autoimmunity-associated B cells (ABC) are associated with autoantibody producing cells and disease flare in systemic lupus erythematosus. ABC were initially identified in aged…
Abstract Number: 1374 • ACR Convergence 2022
Real-World Effectiveness and Steroid Sparing Effect of Belimumab in Pediatric Lupus: A Single Center Retrospective Study
Jordan Roberts¹, Mindy Lo¹, Rebecca Sadun², Emily Smitherman³, Scott Wenderfer⁴ and Mary Beth F. Son¹, ¹Division of Immunology, Boston Children's Hospital, Boston, MA, ²Duke University, Durham, NC, ³University of Alabama at Birmingham, Birmingham, AL, ⁴British Columbia Children's Hospital, Vancouver, BC, Canada
Background/Purpose: Belimumab is the only targeted therapy approved for pediatric systemic lupus erythematosus (pSLE), although use remains limited in children. While clinical trials and studies…
Abstract Number: 0009 • ACR Convergence 2022
Pharmacokinetics, Receptor Occupancy, and Pharmacodynamics of Obexelimab Following Intravenous Administration in Adult Healthy Volunteers and in Patients with Rheumatoid Arthritis
Xiaodong Wang, Mark Matijevic, Allen Poma, Shauna Quinn, Minggeng Gao, Lisa Crockett, Jessica Karnes, Keith Wilcoxen and Hua Mu, Zenas BioPharma, Waltham
Background/Purpose: Obexelimab is a novel bifunctional antibody that inhibits B-cell, CD19 expressing plasma cell, and plasmablast activity and is expected to provide clinical benefit across…
Abstract Number: 1428 • ACR Convergence 2022
Molecular and Clinical Profiling of Rheumatoid Arthritis Patients Predicts the Response to Rituximab
Daniel Toro-Domínguez¹, José Linares-Blanco¹, Raúl López-Domínguez², Pilar S. López-Garrido², Georgina Galicia-Rosas¹, Pedro Carmona-Sáez² and Marta Alarcon-Riquelme¹, ¹Center for Genomics and Oncological Research (GENYO), Granada, Spain, ²University of Granada, Granada, Spain
Background/Purpose: Rheumatoid arthritis (RA) is one of the most prevalent rheumatic diseases, mainly characterized by chronically painful, swollen joints that can severely impair physical function…
Abstract Number: 0045 • ACR Convergence 2022
Rheumatoid Arthritis Patient-derived Anti-citrullinated Protein Antibodies (ACPAs) Ameliorate Joint Inflammation in Early Collagen-antibody Induced Arthritis (CAIA)
Alejandro Gomez¹, Camille Brewer¹, Jae-Seung Moon², Suman Acharya¹, Tobias V. Lanz¹, Qian Wang¹, Gundula Min-Oo³, Anita Niedziela-Majka³ and William Robinson⁴, ¹Stanford University, Stanford, CA, ²Stanford University, Palo Alto, CA, ³Gilead Sciences, Foster City, CA, ⁴Stanford University School of Medicine, Palo Alto, CA
Background/Purpose: ACPAs are present in two-thirds of patients with rheumatoid arthritis (RA) and are associated with higher risks for severe bone erosions. The pathogenic role…
Abstract Number: 1572 • ACR Convergence 2022
CD40, BLK and BANK1 in the Pathogenesis of Immunoglobulin-A Vasculitis
Fernanda Genre¹, Sara Remuzgo-Martinez¹, Veronica Pulito-Cueto¹, JOAO CARLOS BATISTA LIZ², Diana Prieto-Peña¹, Belén Atienza-Mateo¹, Belén Sevilla-Pérez³, Javier Llorca⁴, Norberto Ortego⁵, María Teresa Leonardo⁶, Ana Peñalba⁶, F. Javier Narváez⁷, Luis Martín-Penagos⁸, Emilio Rodrigo⁸, Cristina Gomez-Fernandez⁹, Lara Belmar-Vega⁸, José A. Miranda-Filloy¹⁰, Luis Caminal-Montero¹¹, Paz Collado¹², Pedro Rodriguez-Jimenez¹³, Diego De Argila¹⁴, Patricia Quiroga-Colina¹⁵, Esther Vicente-Rabaneda¹⁶, Enrique Rubio¹⁷, Manuel León Luque¹⁷, Juan María Blanco-Madrigal¹⁸, Eva Galíndez-Agirregoikoa¹⁹, Javier Martín²⁰, Santos Castañeda¹⁶, Ricardo Blanco²¹, Miguel Ángel González-Gay²² and Raquel Lopez Mejias²³, ¹Research Group on Genetic Epidemiology and Atherosclerosis in Systemic Diseases and in Metabolic Bone Diseases of the Musculoskeletal System, IDIVAL; and Department of Rheumatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ²Ilerna, Madrid, Spain, ³Division of Pediatrics, Hospital Universitario San Cecilio, Granada, Spain, ⁴Department of Epidemiology and Computational Biology, School of Medicine, University of Cantabria, and CIBER Epidemiología y Salud Pública (CIBERESP), Santander, Spain, ⁵Medicine Department, Universidad de Granada, Granada, Spain, ⁶Division of Pediatrics, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁷Rheumatology Department, Hospital Universitario de Bellvitge, Barcelona, Spain, ⁸Division of Nephrology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁹Division of Dermatology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ¹⁰Division of Rheumatology, Hospital Universitario Lucus Augusti, Lugo, Spain, ¹¹Division of Rheumatology, Hospital Universitario Central de Asturias, Oviedo, Spain, ¹²Division of Rheumatology, Hospital Universitario Severo Ochoa, Madrid, Spain, ¹³Dermatology Department, Hospital Universitario de La Princesa, Madrid, ¹⁴Dermatology Department, Hospital Universitario de La Princesa, Madrid, Spain, ¹⁵Division of Rheumatology, Hospital Universitario de La Princesa, Madrid, Spain, ¹⁶Division of Rheumatology, Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Spain, ¹⁷Division of Rheumatology, Hospital Universitario Virgen del Rocío, Sevilla, Spain, ¹⁸Division of Rheumatology, Hospital Universitario de Basurto, Bilbao, Spain, ¹⁹Basurto University Hospital, Bilbao, Spain, ²⁰Instituto de Parasitología y Biomedicina ‘López-Neyra’, CSIC, PTS Granada, Granada, Spain, ²¹Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain, ²²Department of Medicine and Psychiatry, Universidad de Cantabria; Rheumatology Division, Hospital Universitario Marqués de Valdecilla; Research group on genetic epidemiology and atherosclerosis in systemic diseases and in metabolic diseases of the musculoskeletal system, IDIVAL, Santander, Spain. Cardiovascular Pathophysiology and Genomics Research Unit, School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa, ²³IDIVAL, Santander, Spain
Background/Purpose: CD40 is a membrane glycoprotein expressed on B cells surface that activates antigen presenting cells [1]. BLK and BANK1 are components of B cells…
Abstract Number: 0335 • ACR Convergence 2022
Multiplexed Mass Cytometry of Cutaneous Lupus Erythematosus and Dermatomyositis Skin: An In-depth B Cell Directed Immunoprofile
Mariko Ogawa-Momohara¹, Thomas Vazquez², Meena Sharma², Josh Dan³, Grant Sprow³ and Victoria Werth³, ¹Nagoya University Graduate School of Medicine, Nagoya, Japan, ²Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, ³Philadelphia VAMC, Philadelphia, PA, USA and Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia
Background/Purpose: Cutaneous lupus erythematosus (CLE) and dermatomyositis (DM) are both characterized histologically by interface dermatitis with a perivascular and periadnexal lymphocytic infiltrate, requiring clinical correlation…
Abstract Number: 1629 • ACR Convergence 2022
AUR200: An Improved BAFF/APRIL Inhibitor with Increased Potency and Safety for the Treatment of B Cell-Mediated Diseases
Shawn Morales, Jennifer Cross and Robert Huizinga, Aurinia Pharmaceuticals, Inc., Victoria, BC, Canada
Background/Purpose: AUR200 targets both B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL), which are key mediators in the pathogenesis of B cell-mediated autoimmune…
Abstract Number: 0351 • ACR Convergence 2022
The Effect of Belimumab to Achieve Low Disease Activity or Remission Based on SLE-DAS in Systemic Lupus Erythematosus: A Single-center Retrospective Study
Yasuhiro Hasegawa¹, Yoshiyuki Arinuma², Yu Matsueda¹, Kenji Oku³ and Kunihiro Yamaoka⁴, ¹Kitasato University School of Medicine, Sagamihara, Japan, ²Kitasato University, Kanagawa, Japan, ³Kitasato University, Chigasaki, Japan, ⁴Department of Rheumatology and Infectious Diseases, Kitasato University School of Medicine, Kanagawa, Japan
Background/Purpose: Low disease activity (LDA) and remission in patients with systemic lupus erythematosus (SLE) can reduce organ damage accrual and improve prognosis. We investigated the…

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