Abstracts tagged "B-Cell Targets"

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,…
Abstract Number: 1666 • ACR Convergence 2025
Treatment with Rilzabrutinib was associated with Rapid and Sustained Reduction in Disease Activity in Patients with IgG4-RD Previously Treated or Naïve to B cell Depletion
John Stone¹, Mollie Carruthers², Alireza Meysami³, Matthew Charles Baker⁴, Daniela Ghetie⁵, Lindsay Lally⁶, Fernando Martinez-Valle⁷, Lorenzo Dagna⁸, nicolas schleinitz⁹, Jeea Choi¹⁰, Leda Mannent¹¹ and Owen Hagino¹⁰, ¹Massachusetts General Hospital , Harvard Medical School, Concord, MA, ²Vancouver General Hospital, Vancouver, BC, Canada, ³Henry Ford Health, Detroit, MI, ⁴Stanford University, Menlo Park, CA, ⁵Oregon Health and Science University, Portland, OR, ⁶Hospital for Special Surgery, NEW YORK, NY, ⁷Vall d’Hebron Hospital, Barcelona, Spain, ⁸IIRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy, ⁹Aix Marseille university, AP-HM, Marseille, France, ¹⁰Sanofi, Morristown, NJ, ¹¹Sanofi, Gentilly, France
Background/Purpose: IgG4-RD is a progressive, immune-mediated fibrotic disease with limited treatment options. Rilzabrutinib is a reversible, orally available inhibitor of Bruton's tyrosine kinase (BTKi). Here,…
Abstract Number: 0962 • ACR Convergence 2025
Spatial Proteomics Analysis of the organization of tertiary lymphoid structures in Systemic Sclerosis Skin
Dennis Bleck¹, Karen Drechsel², Tim Filla³, Yi-Nan Li⁴, Andrea-Hermina Györfi⁵, Alexandru-Emil Matei⁶ and Jörg Distler⁷, ¹University Hospital Düsseldorf, Department of Rheumatology, Hiller Research Center, Düsseldorf, Nordrhein-Westfalen, Germany, ²University Hospital Düsseldorf, Department of Rheumatology, Hiller Research center, Düsseldorf, Nordrhein-Westfalen, Germany, ³Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University., Düsseldorf, Germany, ⁴University Hospital of Düsseldorf, Düsseldorf, Nordrhein-Westfalen, Germany, ⁵Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich Heine University., Düsseldorf, Germany, ⁶Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, and Fraunhofer Cluster of Excellence for Immune Mediated Diseases CIMD, Frankfurt am Main, Germany, Düsseldorf, Germany, ⁷University Hospital Duesseldorf and HHU, Duesseldorf, Germany
Background/Purpose: Systemic Sclerosis (SSc) is a rare autoimmune connective tissue disease and presents a significant medical challenge. It is characterized by fibrotic tissue remodeling, along…
Abstract Number: 0642 • ACR Convergence 2025
Belimumab-Based Triple Therapy in Proliferative Lupus Nephritis: Renal Outcomes and Glucocorticoid Tapering in a Real-World Multicenter Cohort
Paola Vidal Montal¹, Javier Narváez², Aina Fabregat³, Iñigo Rúa-Figueroa⁴, José María Pego-Reigosa⁵, Andrea Hernández-martín⁶, Clara Moriano⁷, Maria Garcia-Villanueva⁸, Sandra Garrote Corral⁹, Sergi Heredia¹⁰, Julia Martínez Barrio¹¹, Júlia Bernardez Moreno¹², Paloma Vela Casasempere¹³, Beatriz Tejera Segura¹⁴, Leyre Riancho¹⁵, Francisco Javier Novoa¹⁶, Vicenç Torrente-Segarra¹⁷, Maria Piqueras García¹⁸, Beatriz Frade Sosa¹⁹, José Gomez-Puerta²⁰, Consuelo Ramos Giraldez²¹, Tarek Salman Montes²², María Galindo-Izquierdo²³, EVA GLORIA TOMERO MURIEL²⁴, Jaime calvo²⁵, Jorge Juan Fragío Gil²⁶, Marta De la Rubia Navarro²⁷, Berta Magallares²⁸ and Irene Altabás-González²⁹, ¹Bellvitge University Hospital, Barcelona, Spain, ²Hospital Universitario de Bellvitge, Barcelona, Spain, ³Department of Rheumatology. Hospital Universitario de Bellvitge., Barcelona, Spain, ⁴Hospital de Gran Canaria Doctor Negrin, Las Palmas GC, Spain, ⁵Department of Rheumatology, University Hospital of Vigo, Vigo, Spain; IRIDIS Group (Investigation in Rheumatology and Immune-Diseases), Galicia Sur Health Research Institute, Vigo, Spain, ⁶Hospital Universitario de Gran Canaria Dr Negrín, Las palmas, Spain, ⁷Hospital León, LEON, Castilla y Leon, Spain, ⁸Hospital Ramón y Cajal, Madrid, Spain, ⁹Hospital Ramón y Cajal, Madrid, ¹⁰Hospital Moisès Broggi, Barcelona, Spain, ¹¹Department of Rheumatology, Hospital Gregorio Marañón, Madrid, Spain, Madrid, Madrid, Spain, ¹²Hospital de Sant Pau, Barcelona, Spain, ¹³Hospital General Universitario Alicante, Alicante, Comunidad Valenciana, Spain, ¹⁴Hospital Insular de Gran Canaria, Las palmas, Spain, ¹⁵Hospital de Sierrallana, Torrelavega, ¹⁶Hospital Insular de Gran Canaria, Las palmas, ¹⁷Hospital Comarcal Alt Penedés Garraf, Vilafranca del Penedès, Spain, ¹⁸Servicio Murciano de Salud, Murcia, Spain, ¹⁹Hospital Clinic de Barcelona, Barcelona, Catalonia, Spain, ²⁰Rheumatology Department, Hospital Clinic, Barcelona, Spain, Barcelona, Spain, ²¹Hospital Universitario Virgen de Valme, Servicio de Reumatología, Seville, Spain, ²²Hospital del Mar/Parc de Salut Mar-IMIM, Barcelona, Spain, ²³Department of Rheumatology, Hospital Universitario ¹² de Octubre, Madrid, Spain, Madrid, Madrid, Spain, ²⁴Hospital Universitario de la Princesa, Madrid, Spain, ²⁵Hospital de Araba, Vitoria, Spain, ²⁶Hospital General Universitario, Valencia, Spain, ²⁷Hospital de La Fe, Valencia, ²⁸Hospital de Sant Pau, Bareclona, ²⁹Complejo Hospitalario de Vigo, Vigo, Spain
Background/Purpose: The newly published ACR guidelines recommend initiating triple therapy for all patients with proliferative lupus nephritis (LN). While belimumab (BEL) has demonstrated efficacy in…
Abstract Number: 0011 • ACR Convergence 2025
KT502, a novel CD19-directed TCE (T-cell engager), leads to rapid and deep B-cell depletion with low cytokine release
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 have shown unprecedented effects in treatment-resistant autoimmune diseases such as systemic lupus erythematosus (SLE), rheumatoid arthritis…
Abstract Number: 2464 • ACR Convergence 2025
IMC-002 (IMM0306), a First-in-Class Bi-specific Fusion Protein, Demonstrates Improvements in Systemic Lupus Erythematosus (SLE) Disease Activity Measures and Biomarkers in Patients with Moderate to Severe Active SLE in the Open-label Phase 1b/2 Study
Haihong Yao¹, Wenzhi Tian², Qian Zheng², Min Chen², Guoping Jiang³, Zhichun Liu⁴, Yingkun Nie⁵, Rui Wu⁶, Zhaohui Zheng⁷ and Zhanguo Li¹, ¹Peking University People's Hospital, Beijing, China (People's Republic), ²ImmuneCare Biopharmaceuticals (Shanghai) Co.,Ltd, Shanghai, China (People's Republic), ³Jilin Province People's Hospital, Changchun, China (People's Republic), ⁴The Second Affiliated Hospital of Soochow, Suzhou, China (People's Republic), ⁵The Second Affiliated Hospital of Harbin Medical University, Haerbin, China (People's Republic), ⁶The First Affiliated Hospital of Nanchang University, Nanchang, China (People's Republic), ⁷The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China (People's Republic)
Background/Purpose: Deep B cell depletion has been confirmed to be the main mechanism for complete clinical response of SLE patients. We analyzed the peripheral blood…
Abstract Number: 1593 • ACR Convergence 2025
Comparison of rituximab induction and maintenance regimens in ANCA-associated vasculitis: PK/PD modelling approach in real-world patients
Blaise Pasquiers¹, Benoit Blanchet², Xavier Puéchal³, Xavier Declèves¹, Pascal Cohen⁴, Claire Goulvestre¹, Marion Casadevall¹, Ines Benhabiles¹, Michel Vidal¹, David Ternant¹, Benjamin Terrier⁵ and Alicja Puszkiel⁶, ¹Hopital Cochin, Paris, France, ²National Referral Centre for Rare Autoimmune and Systemic Diseases, Hôpital Cochin, Paris, France, ³Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, and Université Paris Cité, Paris ( ⁷⁵⁰¹⁴ ), Ile-de-France, France, ⁴Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, Paris, France, ⁵Cochin Hospital, Paris, France, ⁶Cochin Hospital, Paris
Background/Purpose: For the treatment of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV), rituximab (RTX) may be given as a 4-dose regimen (375 mg/m2 weekly for 4…
Abstract Number: 0946 • ACR Convergence 2025
A Novel Preclinical Tool for Evaluating CD20 Antibody Efficacy Based on BAFF/CD20 Dual-target Humanized Mice
Juan Liang¹ and Ting Wang², ¹Gempharmatech, Nanjing, Jiangsu, China, ²GemPharmatech, Nanjing, China (People's Republic)
Background/Purpose: CD20, a well characterized B-cell surface marker involved in B-cell activation and differentiation, plays a critical role in the pathogenesis of B-cell mediated diseases…
Abstract Number: 0843 • ACR Convergence 2025
Efficacy and Safety of BMS-986353, a CD19-Directed Chimeric Antigen Receptor T Cell Therapy Manufactured Using a Next-Generation Process: Updated Data From a Phase 1 Trial in Patients With Systemic Sclerosis
Dinesh Khanna¹, David Korman², Elana Bernstein³, Neil Kramer⁴, Vikas Majithia⁵, Philip J. Mease⁶, Georg Schett⁷, Jacques Azzi⁸, Richard Nash⁹, Ran Reshef³, Mohammad Cherry¹⁰, Ernesto Ayala⁵, Matthew Schwede¹¹, Monalisa Ghosh¹², Fabian Müller¹³, Alisha Desai¹⁴, San-San Ou¹⁵, Sharmila Das¹⁴, Jerill Thorpe¹⁶, Melissa Harnois¹⁴, Alexis Melton¹⁶, Ashley Koegel¹⁶ and Margrit Wiesendanger⁸, ¹University of Michigan, Ann Arbor, MI, ²Mountain Rheumatology, Denver, CO, ³Columbia University Irving Medical Center, New York, NY, ⁴Overlook Medical Center; Atlantic Medical Group, Atlantic Health System, Summit, NJ, ⁵Mayo Clinic Hospital, Jacksonville, FL, ⁶Department of Rheumatology, Providence-Swedish Medical Center and University of Washington, Seattle, WA, ⁷Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany, Erlangen, Germany, ⁸Icahn School of Medicine at Mount Sinai, New York, NY, ⁹Health One Cares, Denver, CO, ¹⁰Atlantic Health System, Morristown, NJ, ¹¹Swedish Cancer Institute, Seattle, WA, ¹²C. S. Mott Children's Hospital University of Michigan Health, Ann Arbor, MI, ¹³University Hospital of Erlangen, Erlangen, Germany, ¹⁴Bristol Myers Squibb, Princeton, NJ, ¹⁵Bristol Myers Squibb, Seattle, WA, ¹⁶Bristol Myers Squibb, Princeton
Background/Purpose: BMS-986353 (CC-97540) is an investigational CD19-directed T-cell therapy expressing the chimeric antigen receptor (CAR) used in globally-approved lisocabtagene maraleucel; it is manufactured via the…
Abstract Number: 0009 • ACR Convergence 2025
MRT-6160, a VAV1-Directed Molecular Glue Degrader, Attenuates T and B Cell Effector Functions and Inhibits Disease Progression in a Spontaneous MRL-Faslpr Mouse Model
Adam Cartwright¹, Lucas Gyger¹, Foram Desai², Shailee Vora², Anna Kostikova¹, Xudong Wang², Peter Trenh², Katie May², Sophia Nguyen², Chris King², Daniel Lam², Xavi Lucas¹, Mary Zlotosch², Elisa Liardo¹, Daric Wible², Ilaria Lamberto², Bradley Demarco², Debora Bonenfant¹, Sharon Townson², Eswar Krishnan², Filip Janku², John Castle¹, Laura McAllister¹, Alison Paterson² and Marisa Peluso², ¹Monte Rosa Therapeutics, Basel, Switzerland, ²Monte Rosa Therapeutics, Boston, MA
Background/Purpose: VAV1, an immune cell restricted guanine nucleotide exchange factor (GEF) and scaffolding protein, plays a critical role in mediating T- and B-cell receptor activity.…
Abstract Number: L17 • ACR Convergence 2024
Allogenic CD19 CAR NK Cells Therapy in Refractory Systemic Lupus Erythematosus: An Open-label, Single Arm, Prospective and Interventional Clinical Trial
Yiyi Yu¹, Ruina Kong¹, Xia Xu¹, Suxuan Liu¹, Qian Chen¹, Xiaofang Li², Ming Sun², Jianmin Yang¹, Dongbao Zhao¹ and Jie Gao¹, ¹Changhai Hospital, Shanghai, China, ²Rui Therapeutics, Nanjing, China
Background/Purpose: Treatment of systemic lupus erythematosus (SLE) typically necessitates long-term immunosuppression with hormones, immunosuppressants and biologics. CD19-targeting chimeric antigen receptor (CAR) T cells have shown excellent…
Abstract Number: 0010 • ACR Convergence 2024
Precision Editing of Cyclophilin a to Engineer Cyclosporine- and Voclosporin- Resistant Human CAR-T Cells
Holly Wobma¹, Francesca Alvarez-Calderon², Jiayi Dong², Alexandre Albanese², Kayleigh Omdahl², Rene Bermea³, Gillian Selig⁴, Marlana Winschel², Elisa Rojas Palato², Katherine Michaelis¹, Xianliang Rui², Bruce Blazar⁵, Susan Prockop², Victor Tkachev³, Ulrike Gerdemann² and Leslie Kean², ¹Division of Immunology, Boston Children's Hospital, Boston, MA, ²Division of Hematology-Oncology, Boston Children's Hospital, Boston, MA, ³Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA, ⁴Harvard College, Boston, MA, ⁵Division of Pediatric Blood and Marrow Transplantation & Cellular Therapy, University of Minnesota, Minneapolis, MN
Background/Purpose: With exponential demand for chimeric antigen receptor (CAR) therapies for autoimmune disease, allogeneic options will be essential. Advantages include use of healthy donor cells,…
Abstract Number: 0777 • ACR Convergence 2024
Rheumatoid Factor B Cell Clones Proliferate Predominantly as Atypical Memory B Cells in Reactive Cervical Lymph Node Follicles Compared to Extrafollicular Sites in Affected Salivary Glands of SjS Patients
Theodoros Ioannis Papadimitriou¹, Jing Jing Wang², Xuehui He³, Sidney van der Zade⁴, Massis Krekorian⁵, Prashant Singh⁶, Erik Dik⁵, Ger Pruijn⁵, Tom Gordon², Hans Koenen⁷, Martijn Huijnen⁸ and Rogier Thurlings¹, ¹Radboudumc, Department of Rheumatology, Nijmegen, Gelderland, Netherlands, ²Flinders University, Adeleide, Australia, ³Radboudumc, Nijmegen, Netherlands, ⁴Radboudumc, Amsterdam, Netherlands, ⁵Radboudumc, Nijmegen, Gelderland, Netherlands, ⁶Radboudumc, Department of Medical BioSciences, Nijmegen, Netherlands, ⁷Radboudumc, Department of Medical Immunology, Nijmegen, Gelderland, Netherlands, ⁸Radboudumc, Department of Medical BioSciences, Nijmegen, Gelderland, Netherlands
Background/Purpose: Sjögren’s syndrome (SjS) is a chronic inflammatory disorder, characterized by formation of autoantibodies. Over time rheumatoid factor (RF) clones can give rise to cryoglobulinemic…
Abstract Number: 1733 • ACR Convergence 2024
Safety and Efficacy of CABA-201, a Fully Human, Autologous 4-1BB Anti-CD19 CAR T Cell Therapy in Patients with Immune-Mediated Necrotizing Myopathy and Systemic Lupus Erythematosus from the RESET-MyositisTM and RESET-SLETM Clinical Trials
Saira Sheikh¹, Tahseen Mozaffar², Vimal Derebail¹, Natalie Grover¹, Jonathan Hogan³, Courtney Little³, Yvonne White³, Claire Miller³, Rebecca Estremera³, Jenell Volkov³, Daniel Nunez³, Jason Stadanlick³, Mallorie Werner³, Zachary Vorndran³, Alexandra Ellis³, Jazmean Williams³, Justin Cicarelli³, Quynh Lam³, thomas Furmanak³, Chris Schmitt³, Fatemeh Nezhad³, Dan Thompson³, Samik Basu³ and David Chang³, ¹University of North Carolina at Chapel Hill, Chapel Hill, NC, ²University of California, Irvine, Irvine, CA, ³Cabaletta Bio, Philadelphia, PA
Background/Purpose: CD19 targeting chimeric antigen receptor (CAR) T cells have demonstrated durable drug-free responses and remission in patients with idiopathic inflammatory myopathies (IIM) and systemic…

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