Abstracts tagged "B-Cell Targets"

Abstract Number: 1761 • ACR Convergence 2025
The Application of SLE Patient-derived PBMC-induced Mouse Model in Preclinical Pharmacological Studies
Juan Liang¹, Yinlian Zhang², Feng Li², Yingfeng Huang³, Ruixia Zhang³ and Ruixue Dai³, ¹Gempharmatech, Nanjing, Jiangsu, China, ²GemPharmatech, Nanjing, China (People's Republic), ³CytoCares, Shanghai, China (People's Republic)
Background/Purpose: Systemic lupus erythematosus (SLE) is a multisystem autoimmune disorder characterized by the production of autoantibodies targeting nuclear antigens, immune complex deposition, and chronic inflammation…
Abstract Number: 1109 • ACR Convergence 2025
Characteristics of SARS-CoV-2 infected Patients with Rheumatic Diseases on Rituximab: A Subanalysis of the COVID-19 Vaccine Booster in Immunocompromised Rheumatic Diseases (COVBIRD) Study
Laurianne Simard¹, Nathalie Amiable², Ines Colmegna³, Anne-Sophie Julien⁴, Sonia Léger-Thériault⁵, Alexandra Godbout⁴, Lison Fournier⁶, Giuliana Alfonso⁵, Josiane Bourre-Tessier⁷, Marie Hudson⁸, Nicolas Richard⁹, Jean-Paul Makhzoum¹⁰, Arielle Mendel¹¹, Sasha Bernatsky¹², Marc Dionne⁶, Michael Libman⁵, Gaston De Serres⁶ and Paul Fortin¹³, ¹Universite Laval, Quebec, QC, Canada, ²Centre de recherche du CHU de Québec – Université Laval, Quebec City, QC, Canada, ³The Research Institute of the McGill University Health Centre, Montréal, QC, Canada, ⁴Centre de recherche du CHU de Québec – Université Laval, Quebec, QC, Canada, ⁵MUHC, Montreal, Canada, ⁶Centre de recherche du CHU de Québec – Université Laval, Quebec, Canada, ⁷Centre hospitalier de l'Universite de Montreal, Montreal, QC, Canada, ⁸McGill University, Montréal, QC, Canada, ⁹Hopital Maisonneuve Rosemont, Montreal, QC, Canada, ¹⁰Universite de Montreal, Montreal, Canada, ¹¹McGill University Health Centre, Montréal, QC, Canada, ¹²Research Institute of the McGill University Health Centre, Montreal, QC, Canada, ¹³Centre ARThrite - CHU de Québec - Université Laval, Quebec, QC, Canada
Background/Purpose: Patients with systemic autoimmune rheumatic diseases (SARD) treated with B-cell-depleting therapies such as rituximab (RTX) have impaired humoral immune responses, increasing their susceptibility to…
Abstract Number: 0664 • ACR Convergence 2025
Pharmacodynamic Effects of Obinutuzumab on B cells and Serological Markers in Patients With Active Lupus Nephritis: Results From a Phase III Trial
Richard Furie¹, Ioannis Parodis², Rachel Jones³, Liz Lightstone⁴, Olivia Hwang⁵, Amelia Au-Yeung⁵, Imran Hassan⁶, Huiyan Mao⁶, William Pendergraft⁵, Jay Garg⁵, Harini Raghu⁵ and Brad Rovin⁷, ¹Division of Rheumatology, Northwell Health, Great Neck, NY, ²Karolinska Institutet and Karolinska University Hospital, Department of Medicine Solna, Division of Rheumatology, Stockholm, Sweden, ³Renal Medicine, Cambridge University Hospitals, Cambridge, England, United Kingdom, ⁴Department of Immunology and Inflammation, Faculty of Medicine, Imperial College London, London, England, United Kingdom, ⁵Genentech, Inc., South San Francisco, CA, ⁶Hoffmann-La Roche Ltd, Mississauga, ON, Canada, ⁷The Ohio State University, Columbus, OH
Background/Purpose: Lupus nephritis (LN) is a severe manifestation of systemic lupus erythematosus, marked by kidney inflammation and damage. Obinutuzumab, a glycoengineered, type II CD20 antibody…
Abstract Number: 0014 • ACR Convergence 2025
NKX019, an allogeneic off-the-shelf CD19 targeting CAR-NK cell therapy, induces deep CD19+ B cell depletion in hematological malignancy and models of autoimmune disease
Mira Tohmé, Meriam Vejiga, Wendy Yu, Emily Kang, Katharine Yu, Jessica Sood, Ivan Chan, Kyle Hansen, David Shook and Phung Gip, Nkarta, South San Francisco, CA
Background/Purpose: Autologous CAR T-cell therapies have remarkable clinical activity in autoimmune disease (AD) via B-cell targeting, with many patients achieving durable, drug-free remission. However, safety…
Abstract Number: 2476 • ACR Convergence 2025
Blinatumomab in rapid progressive systemic sclerosis
Christina Gebhardt¹, Franziska Szelinski², Hector Rincon-Arevalo², Giulia Magno³, Veit Buecklein³, Gerulf Haenel⁴, Gerhard Zugmaier⁵, Michael von Bergwelt³, Marion Subklewe³, Thomas Dörner⁶, Alla Skapenko⁷ and Hendrik Schulze-Koops⁷, ¹LMU Hospital, Division for Rheumatology and Clinical Immunology, München, Germany, ²Charite Universitétsmedizin Berlin, Germany, Berlin, Germany, ³LMU Klinikum, Med. Klinik und Poliklinik III, Munich, Germany, ⁴LMU Gene Center, Munich, Germany, ⁵Amgen, Munich, Germany, ⁶Charite Universitétsmedizin Berlin, Germany and DRFZ, Berlin, Berlin, Germany, ⁷LMU Hospital, Division for Rheumatology and Clinical Immunology, Munich, Bayern, Germany
Background/Purpose: Systemic sclerosis is a severe, potentially fatal disease, characterized by progressive fibrosis of skin and internal organs. Blinatumomab is a bispecific CD3/CD19-T-cell engager (BiTe)…
Abstract Number: 1697 • ACR Convergence 2025
Dynamic Effects of T cell Engager Therapy on B and T cells in Autoimmune Disease.
Laura Bucci¹, Tobias Rothe², Ann-Kathrin Goetz³, Kirill Anoshkin¹, Danae-Mona Nöthling¹, Melanie Hagen¹, Sebastian Böltz¹, Andreas Wirsching¹, Georg Schett⁴ and Ricardo Grieshaber-Bouyer⁵, ¹Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, Germany, ²Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlagen, Germany, ³Department of Medicine ³ - Rheumatology and Immunology, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg and Uniklinikum Erlangen, Erlangen, ⁴Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany, Erlangen, Germany, ⁵University Hospital Erlangen, Erlangen, Germany
Background/Purpose: Treatment of autoimmune disease with T cell engagers (TCEs) leads to profound peripheral B cell depletion, followed by their reconstitution. However, the dynamics of…
Abstract Number: 1093 • ACR Convergence 2025
Rituximab Associated Risk for Progressive Multifocal Leukoencephalopathy Among Patients with Systemic Lupus Erythematosus: A Retrospective Cohort Study
Blake Baay¹, Lorien Nassi² and Zachary Most³, ¹Scottish Rite for Children, Dallas, TX, ²UT Southwestern, Children's Medical Center, and Scottish Rite for Children, Dallas, TX, ³UT Southwestern, Dallas, TX
Background/Purpose: Rituximab is one of the many immunosuppressive medications used to treat SLE that can increase a patient’s risk for developing progressive multifocal leukoencephalopathy (PML),…
Abstract Number: 0656 • ACR Convergence 2025
Low-dose belimumab reduced disease flares in patients with systemic lupus erythematosus at low disease activity: a multicenter, randomized, double-blind, placebo-controlled trial
Fangfang Sun¹, Huijing Wang¹, Danting Zhang¹, Nan Shen¹, Sheng Chen¹, Tiing Li¹, Weiguo Wan², Shengming Dai³ and Shuang Ye⁴, ¹Renji Hospital, Shanghai, China (People's Republic), ²Huashan Hospital, Shanghai, China (People's Republic), ³Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (People's Republic), ⁴Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China, Shanghai, Shanghai, China (People's Republic)
Background/Purpose: B-lymphocyte stimulator was involved in the pathogenesis of SLE. The humanized monoclonal antibody belimumab with 10mg/kg was effective for active patients. The efficacy of…
Abstract Number: 0010 • ACR Convergence 2025
XmAb657, a CD19 x CD3 T-Cell Engaging Bispecific Antibody for Autoimmune Disease
Matthew Bernett¹, Gregory Moore², Katrina Bykova², Viralkumar Davra², Seung Chu², Michael Sheard², Ruschelle Love², Norman Barlow², Engie Salama², Jitendra Kanodia², Panida Lertkiatmongkol², Dipankar Chaudhuri², Kendra Avery², Hanh Nguyen², Rumana Rashid², Ke Liu², Jing Qi², Araz Eivazi², Thuy Truong², Sher Karki², James Ernst², Rena Bahjat² and John Desjarlais², ¹Xencor, Inc., Pasadena, CA, ²Xencor, Inc., Pasadena
Background/Purpose: B cell depletion is a validated therapeutic strategy in autoimmune disease, but current approaches targeting CD20 may only partially eliminate disease-driving subsets such as…
Abstract Number: 2468 • ACR Convergence 2025
RESET-SLE: Clinical Trial Evaluating Rese-cel (Resecabtagene Autoleucel), a Fully Human, Autologous 4-1BB CD19-CAR T Cell Therapy in Non-Renal SLE and Lupus Nephritis
Saira Sheikh¹, Vimal Derebail¹, Natalie Grovner¹, Gaurav Gulati², Mehrdad Abedi³, Meghan Sise⁴, Matthew Frigault⁴, Christopher Palma⁵, Patrick Reagan⁵, Cuoghi Edens⁶, Satya Kosuri⁶, Caitlin Elgarten⁷, Jon Burnham⁸, Jonathan Hogan⁹, Yvonne White⁹, Carl diCasoli⁹, Rebecca Estremera⁹, Jenell Volkov⁹, Daniel Nunez⁹, Fatemeh Hadi-Nezhad¹⁰, Thomas Furmanak⁹, Jason Stadanlick⁹, Larissa Ishikawa⁹, Zachary Vorndran⁹, Alexandra Ellis⁹, Jazmean Williams⁹, Steve Flanagan⁹, Quynh Lam¹⁰, Samik Basu⁹, Raj Tummala¹⁰ and David Chang⁹, ¹University of North Carolina at Chapel Hill, Chapel Hill, NC, ²University of California, Davis School of Medicine, Davis, CA, ³University of California, Davis School of Medicine, Davis, ⁴Massachusetts General Hospital, Boston, MA, ⁵University of Rochester, Rochester, NY, ⁶University of Chicago, Chicago, IL, ⁷Children's Hospital of Philadelphia, Philadelphia, PA, ⁸Children's Hospital of Philadelphia, Bryn Mawr, PA, ⁹Cabaletta Bio, Philadelphia, PA, ¹⁰Cabaletta Bio, Philadelphia
Background/Purpose: Current goals of treatment for systemic lupus erythematosus (SLE) are to achieve low disease state/remission, prevent flares, minimize organ damage, and decrease long-term morbidity…
Abstract Number: 1683 • ACR Convergence 2025
Serum APRIL Is Associated With B-Cell Activation Markers, Disease Activity, and Lymphoma Risk in Sjögren Disease (SD): Data From the prospective ASSESS Cohort
Pierre-Marie Duret¹, Pascal Schneider², Ludivine Robin³, Marine Vierling⁴, Nicolas Meyer⁵, Valerie Devauchelle⁶, Divi Cornec⁷, Alain SARAUX⁸, Jean Sibilia⁹, Raphaele Seror¹⁰, Yann Nguyen¹¹, Gaetane Nocturne¹², Laurent Mauvieux¹³, Laurent Miguet¹⁴, Xavier Mariette¹⁵ and Jacques-eric GOTTENBERG¹⁶, ¹Colmar General Hospital; Strasbourg University Hospital, Strasbourg, France, ²Université de Lausanne,Département de biochimie, Lausanne, Switzerland, ³Strasbourg University Hospital, Department of pathology, ⁴CNRS, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis, Institut de Biologie Moléculaire et Cellulaire (IBMC), Strasbourg, France Strasbourg, France;, Strasbourg, Alsace, France, ⁴Strasbourg University Hospital, Department of Public Health, GMRC, Strasbourg, France,, Strasbourg, Alsace, France, ⁵Strasbourg University Hospital, Department of Public Health, GMRC, Strasbourg, France, Strasbourg, Alsace, France, ⁶UBO, Brest, France, ⁷LBAI, UMR¹²²⁷, University of Brest, CHU Brest, Brest, France, Brest, Bretagne, France, ⁸CHU Brest, Brest, France, ⁹Rheumatology Department, National Center for Rare autoimmune disease RESO,Strasbourg University Hospital, Strasbourg, Alsace, France, ¹⁰Department of Rheumatology, National referral center for auto immune disease and Sjogren disease, Université Paris-Saclay, INSERM UMR¹¹⁸⁴: Centre for Immunology of Viral Infections and Autoimmune Diseases, Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Le Kremlin Bicêtre, Paris, France., le kremlin bicetre, France, ¹¹Department of Internal Medicine, Beaujon Hospital, AP-HP Nord, Université Paris Cité, Clichy, France, Clichy, France, ¹²University Paris Saclay, Le Kremlin Bicetre, Ile-de-France, France, ¹³Strasbourg University Hospital, Laboratory hematology, Strasbourg, France,CNRS, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis, Institut de Biologie Moléculaire et Cellulaire (IBMC), Strasbourg, France, Strasbourg, Alsace, France, ¹⁴Strasbourg University Hospital, Laboratory hematology, Strasbourg, France, CNRS, Immunopathologie et Chimie Thérapeutique/Laboratory of Excellence Medalis, Institut de Biologie Moléculaire et Cellulaire (IBMC), Strasbourg, France, Strasbourg, Alsace, France, ¹⁵Université Paris-Saclay, Le Kremlin Bicetre, France, ¹⁶Hautepierre Hospital, STRASBOURG, Alsace, France
Background/Purpose: Sjögren disease (SD) is a B cell driven systemic auto-immune disease, with a need for biomarkers to better assess disease activity, risk of lymphoma…
Abstract Number: 0994 • ACR Convergence 2025
UTAA91: An Off-the-Shelf Allogeneic CAR-Vδ1T Therapy Leveraging CD19 Nanoantibody for B-cell Depletion and PD-1 Agonist Nanoantibody for Pathogenic T-cell Elimination in Refractory Autoimmune Diseases
Licui Jiang¹, Fengtao you¹, Kunmin Yan¹, Jianan Yao¹, Hai Wu¹, Jian Wu², Xin Chang², Cheng Peng², Huimin Meng¹, Min Wang³, Ping Zhang³, Bozhen Zhang⁴ and Lin Yang⁵, ¹PersonGen BioTherapeutics(Suzhou) Co., Ltd., Suzhou, China,, Suzhou, China (People's Republic), ²The First Affiliated Hospital of Soochow University, Suzhou, China (People's Republic), ³PersonGenAnke Cellular Therapeutics Co., Ltd.,Hefei, China,, Suzhou, China (People's Republic), ⁴PersonGen BioTherapeutics(Suzhou) Co., Ltd., Suzhou, China; PersonGenAnke Cellular Therapeutics Co., Ltd.,Hefei, China,, Suzhou, China (People's Republic), ⁵PersonGen BioTherapeutics(Suzhou) Co., Ltd., Suzhou, China; PersonGenAnke Cellular Therapeutics Co., Ltd.,Hefei, China; Cyrus Tang Medical Institute, Soochow University, Suzhou, Jiangsu, China, Suzhou, China (People's Republic)
Background/Purpose: Current therapies inadequately restore immune homeostasis due to incomplete pathogenic cell clearance and limited multi-lineage targeting. UTAA91 integrates: 1) PD-1 agonist-targeted cytotoxicity: The PD-1…
Abstract Number: 0646 • ACR Convergence 2025
A-319, a CD3×CD19 T Cell Engager, for the Treatment of Refractory Systemic Lupus Erythematosus: Preliminary Evidence of Autoimmune Reset
Chunli Mei¹, Xin Guan¹, Rong Du¹, Bin Wu², You Song¹, Xiaoqi Chen³, Mengjiao Li¹, Xiaojing Liu¹, Xi Cheng¹, Weiwei Wang¹, Cheng Wang¹, Huiling Mei¹, Xiaoru Duan¹, Lijuan Jiang¹, Wenlin Qiu¹, Likai Yu¹, Yuhong Liu¹, Di Wu¹, Guiqi Quan¹, Blal Chakhabi¹, Xing Zhao⁴, Xuanfan Zhong⁴, Shengjie Xue⁴, Wuzhong Shen⁴, Ying Tan⁴, Guojian Yu⁴, Guiyun Tu⁴, Hanyang Chen⁴, Amy Sun⁴, Jing Liang⁴, Sharon Song⁴, Jason Xu⁴, Xiaoqiang Yan⁴, Anbing Huang¹ and Qiubai Li⁵, ¹Union Hospital,Tongji Medical College, Huazhong University of Science and Technology, WUHAN, China (People's Republic), ²First People’s Hospital of Jingzhou, Jingzhou, China (People's Republic), ³Zhongnan Hospital, Wuhan University, Wuhan, China (People's Republic), ⁴ITabMed Co., Ltd., Shanghai, China (People's Republic), ⁵Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China (People's Republic)

Background/Purpose: Immune reset of autoimmune disease has been proposed to be a potential benefit of T cell engagers (TCEs) and CD19 CAR T therapy. A-319,…
Abstract Number: 0012 • ACR Convergence 2025
KT501, a CD19/BCMA/CD3 trispecific antibody, leads to rapid and deep B-cell depletion with well-tolerated safety
Min Bao, John Wang, Jay Zhao and Weihao Xu, Kali Therapeutics, San Mateo, CA
Background/Purpose: Chimeric antigen receptor T-cell (CAR-T) therapies targeting CD19 or B-cell maturation antigen (BCMA) have shown unprecedented effects in treatment-resistant autoimmune diseases such as systemic…
Abstract Number: 2465 • ACR Convergence 2025
CD19/BCMA Dual-Targeting FasTCAR-T Cells GC012F (AZD0120) in patients with refractory Systemic Lupus Erythematosusm: an open-label, single-center Phase I study
chunmei Wu¹, Yakai Fu², Jia Liu³, Yan Ye⁴, Ran Wang⁵, Xintong Feng³, Lianjun Shen⁶, Peiying Li⁵, Shuang Ye⁵ and Qiong Fu⁷, ¹Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China, Shanghai, China (People's Republic), ²Department of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, Shanghai, China (People's Republic), ³Astrazeneca, Shanghai, China (People's Republic), ⁴Department of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China (People's Republic), ⁵Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China, Shanghai, Shanghai, China (People's Republic), ⁶Astrazeneca, Shanghai, Shanghai, China (People's Republic), ⁷Renji Hospital, Shanghai, Shanghai, China
Background/Purpose: GC012F (AZD0120) is a CD19/B cell maturation antigen (BCMA) dual-targeting chimeric antigen receptor T-cell (CAR-T) developed on the novel FasTCAR-T platform with next-day manufacturing,…

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