Abstracts tagged "B-Cell Targets"

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: 0550 • ACR Convergence 2023
Harnessing Machine Learning to Predict Neuropsychiatric Events in Systemic Lupus Erythematosus
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: Neuropsychiatric systemic lupus erythematosus (NPSLE) is linked to increased morbidity, mortality, and adverse health-related quality of life. Early disease, a history of NPSLE, aPL…
Abstract Number: 0983 • ACR Convergence 2023
Association Between Disease-modifying Anti-rheumatic Drugs and Short-term Outcomes of Dengue: A Population-based, Cohort Study
I-Feng Lin¹, Hsin-Hua Chen², Theodore Tsai³ and Nicole Huang⁴, ¹National Yang Ming Chiao Tung University, Taipei, Taiwan, ²Taichung Veterans General Hospital, Taichung, Taiwan, ³Takeda Vaccines, Cambridge, MA, ⁴Master of Public Health Program, National Yang Ming Chiao Tung University, Taipei, Taiwan
Background/Purpose: Dengue is the leading vectorborne disease globally with half of the global population at risk, including Puerto Rico in the United States. Previously, we…
Abstract Number: 2320 • ACR Convergence 2023
Predicting Remission and Low Disease Activity Attainment in Patients with Systemic Lupus Erythematosus
Raffaele Da Mutten¹, Nursen Cetrez², Julius Lindblom², Shereen Oon³, Dionysis Nikolopoulos¹, Mandana Nikpour⁴ and Ioannis Parodis², ¹Karolinska Institutet and Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden, ²Karolinska Institutet, Stockholm, Sweden, ³St Vincent's Hospital, Fitzroy, Australia, ⁴The University of Melbourne at St. Vincent’s Hospital Melbourne, Departments of Medicine and Rheumatology, Melbourne, Australia
Background/Purpose: Response to therapy in SLE varies significantly and presents a considerable challenge in terms of predictability. Development of predictive models with ability to accurately…
Abstract Number: 0583 • ACR Convergence 2023
Therapeutic Potential of Imvotamab, a CD20-Targeted Bispecific IgM T Cell Engager, for the Treatment of Refractory Autoimmune Disease Patients
Racquel Domingo-Gonzalez¹, Isabelle Baribaud², Miho Oyasu¹, Sivani Pandey¹, Maya Leabman¹, Genevive Hernandez¹, Albert Candia¹, Stephen Carroll¹, Bruce Keyt¹, Maya Kotturi¹, Carrie Brodmerkel² and Mary Beth Harler², ¹IGM Biosciences, Inc., Mountain View, CA, ²IGM Biosciences, Inc., Doylestown, PA
Background/Purpose: B cell depletion therapy (BCDT) with conventional IgG antibodies (e.g.rituximab) has been used to treat autoimmune (AI) disease for several decades. However, many patients…
Abstract Number: 1076 • ACR Convergence 2023
Rituximab-Associated Hypogammaglobulinemia in Patients with Rheumatic Diseases: A Multicenter Retrospective Observational Study
Olga Rusinovich¹, Enrique Calvo-Aranda², Claudia Maria Gomez², Patricio Cardoso Peñafiel², Pilar Navarro Alonso³, Miguel Cantalejo Moreira⁴, Alberto Diaz y Oca³, Pablo Navarro⁵, Maria Machattou⁵, Maria Alonso⁵, Carlota Navarro⁵, Carolina Merino⁵, Hilda Godoy⁶, Maria Carmen Barbadillo Mateos⁷, Carlos Isasi⁵, Maria Perez Ferro⁸, Jessica Polo⁹, Veronica Garcia¹⁰, Jose Luis Andreu-Sánchez¹¹, Jose Campos¹² and Jesus Sanz¹³, ¹Puerta de Hierro Majadahonda University Hospital, Boadilla del Monte, Spain, ²Hospital Universitario Infanta Leonor, Madrid, Spain, ³Fuenlabrada University Hospital, Madrid, Spain, ⁴Hospital Universitario de Fuenlabrada, Madrid, Spain, ⁵Puerta de Hierro Majadahonda University Hospital, Madrid, Spain, ⁶Hospital Universitario Puerta de Hierro, Madrid, Spain, ⁷Public, Madrid, Spain, ⁸Hospital Universitario Rey Juan Carlos, Madrid, Spain, ⁹Rey Juan Carlos University Hospital, Madrid, Spain, ¹⁰Ramon y Cajal University Hospital, Madrid, Spain, ¹¹Rheumatology, Hospital Universitario Puerta de Hierro, Majadahonda, Spain, ¹²Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda, Spain, ¹³Hospital Universitario Puerta de Hierro, Majadahonda, Spain
Background/Purpose: Rituximab (RTX) is a murine/human chimeric monoclonal antibody directed against the CD20 receptor expressed on pre-B and mature B cells. Rituximab is used effectively…
Abstract Number: 2342 • ACR Convergence 2023
Modulation of B Cell and Interferon Pathways by Ianalumab in Patients with Systemic Lupus Erythematosus: Findings from a Phase 2 Clinical Trial
Aida Santos da Costa¹, Thomas Dörner², Andrea Grioni¹, Alexandre Avrameas¹, Ulrike Sommer¹, Rainer Hillenbrand¹, Valeria De Luca¹, Enrico Ferrero¹, Andre Nogueira da Costa¹, Isabelle Isnardi¹ and Stephen J Oliver¹, ¹Novartis Pharma AG, Basel, Switzerland, ²Department of Medicine, Rheumatology and Clinical Immunology, Charité Universitätsmedizin and Deutsches Rheumaforschungszentrum, Berlin, Germany
Background/Purpose: Ianalumab (VAY736) is an afucosylated monoclonal antibody targeting the B cell activating factor receptor (BAFFR) that depletes B cells via enhanced antibody dependent cellular…
Abstract Number: 0588 • ACR Convergence 2023
Long Term Safety and Predictors of Serious Infections Among Patients with Systemic Lupus Erythematosus Treated with Rituximab: Audit from a Single Center Biologic Registry
Augustine Jose¹, Aishwarya Gopal¹, Mamatha Gorijavolu¹, Anna C Das², Jagan Babu K L¹, Amrita Nayak¹, Chengappa Kavadichanda¹ and Molly Mary Thabah¹, ¹Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India, ²St.Johns National Academy of Health Sciences, Bengaluru, India
Background/Purpose: Rituximab (RTX) is increasingly being employed to treat refractory systemic lupus erythematosus(SLE). Though the drug is effective there is a high risk of adverse…
Abstract Number: 1272 • ACR Convergence 2023
Immunomodulators and Risk for Breakthrough COVID-19 After a Third SARS-CoV-2 mRNA Vaccine Among Patients with Rheumatoid Arthritis: A Cohort Study
Abigail Schiff¹, Xiaosong Wang¹, Naomi Patel², Yumeko Kawano¹, Jennifer Hanberg³, Emily Kowalski¹, Claire Cook², Kathleen Vanni¹, Grace Qian¹, Katarina Bade⁴, Alene Saavedra¹, Shruthi Srivatsan², Zachary Williams², Rathnam Venkat¹, Zachary Wallace⁵ and Jeffrey Sparks⁶, ¹Brigham and Women's Hospital, Boston, MA, ²Massachusetts General Hospital, Boston, MA, ³Massachusetts General Hospital, Brigham and Women's Hospital, Boston, MA, ⁴Brigham and Women's Hospital, Boston, MA, ⁵Massachusetts General Hospital, Newton, MA, ⁶Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
Background/Purpose: In August 2021, the CDC recommended a third SARS-CoV-2 mRNA vaccine dose to complete the initial vaccine series for immunosuppressed patients who had previously…
Abstract Number: 2350 • ACR Convergence 2023
Upregulation of Both APRIL and BAFF in Systemic Lupus Erythematosus Suggests Non-Redundant Roles, Further Revealed by Dual Inhibition with Povetacicept (ALPN-303; TACI vTD-Fc)
Tiffany Blair, Elizabeth Repash, Armand Bankhead, Amanda Enstrom, Lawrence Evans, Susan Debrot, Allison Chunyk, Sherri Mudri, Stanford Peng and Stacey Dillon, Alpine Immune Sciences, Inc., Seattle, WA
Background/Purpose: B cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) are cytokines that signal through transmembrane activator and CAML interactor (TACI), B cell maturation…
Abstract Number: 0593 • ACR Convergence 2023
Lupus Nephritis of the Spanish National Registry of Belimumab in Patients with Systemic Lupus Erythematosus
María laiño¹, Monica Enguita², Pablo Navarro³, Javier Loricera⁴, Angel Garcia-Aparicio⁵, Carmen Lasa⁶, Vanesa Calvo Río⁷, Adela Gallego⁸, Clara Moriano Morales⁹, Javier Narvaez¹⁰, MARIA IRENE CARRION BARBERA¹¹, Jordi Camins-Fàbregas¹², Joaquin Maria Belzunegui Otano¹³, Ana Urruticoechea¹⁴, Leticia del Olmo Perez¹⁵, Santos Castañeda¹⁶, Patricia Quiroga¹⁶, Ivette Casafont-Sole¹⁷, Juan Ramon De Dios Jimenez De Aber¹⁸, Marta López¹⁹, Judit Font Urgelles²⁰, Rafaela Ortega Castro²¹, Marta Garijo Bufort²², Jorge Juan Fragio²³, Ignacio Vázquez²⁴, Mamen Ortega²⁵, Aaron Fariñas²⁶, Cilia Peralta²⁷, Juan María Blanco²⁸, Sergi Heredia Martin²⁹, Maria Valvanera Pinillos³⁰, Eztizen Labrador-Sánchez³¹, Piter Jose Cossio Jimenez³², Carlos Vazquez Galeano³³ and Vicente Aldasoro¹, ¹Hospital Universitario de Navarra, Pamplona, Spain, ²Navarrabiomed-Unidad de Metodología, Pamplona, Spain, ³Rheumatology, Hospial Universitario Puerta de Hierro, Majadahonda, Spain, ⁴Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁵Hospital Universitario de Toledo, Toledo, Spain, ⁶Hospital Universitario Marqués de Valdecilla, IDIVAL., La Cavada, Spain, ⁷Valdecilla Hospital, Santander, Spain, ⁸Complejo Hospitalario Universitario de Badajoz, Badajoz, Spain, ⁹Rheumatology, Hospital Universitario de León, León, Spain, ¹⁰Hospital Universitario de Bellvitge, Barcelona, Spain, ¹¹Hospital del Mar/Parc de Salut Mar-IMIM, Barcelona, Spain, ¹²Hospital General de Granollers, Granollers, Spain, ¹³University Hospital Donostia, Donostia-San Sebasti, Spain, ¹⁴Hospital Can Misses, Ibiza, Spain, ¹⁵Hospital Nuestra Señora del Prado, Talavera de la Reina, Spain, ¹⁶Hospital Universitario de la Princesa, Madrid, Spain, ¹⁷Hospital Universitari Germans Trias i Pujol, Badalona, Spain, ¹⁸Hospital de Araba, Alava, Spain, ¹⁹Hospital Universitario Arava, Pamplona, Spain, ²⁰Hospital Universitario German Trias i Pujol,, Badalona, Spain, ²¹Hospital Reina Sofía, Cordoba, Spain, ²²Hospital de Sagunto, Valencia, Spain, ²³Hospital General Universitario Valencia, Valencia, Spain, ²⁴H. U. Dr. Peset, Valencia, Spain, ²⁵Hospital Universitario de Getafe, Getafe, Spain, ²⁶Complejo Asistencial Universitario de Palencia, Palencia, Spain, ²⁷Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain, ²⁸Hospital Universitario de Basurto, Bilbao, Spain, ²⁹Complex Hospitalari Moisès Broggi, Barcelona, Spain, ³⁰Hospital Universitario San Pedro, Logroño, Spain, ³¹Hospital Universitario San Pedro, Laguardia, Spain, ³²HOSPITAL REINA SOFIA, Tudela, Spain, ³³ZARAGOZA, Madrid, Spain
Background/Purpose: Belimumab (BLM) is a B-cell stimulating factor (BlyS) monoclonal antibody, approved in 2022 for the treatment of lupus nephritis (NL) and since 2011 for…
Abstract Number: 1372 • ACR Convergence 2023
Obinutuzumab Efficacy and Tolerance in Patients with Auto-Immune Diseases Immunized Against Rituximab
Mathilde Pezot¹, Gaetane Nocturne², Rakiba Belkhir¹, Julien Henry¹, Stephan Pavy¹, Raphaele Seror³, Xavier Mariette⁴ and Samuel Bitoun⁵, ¹Rheumatology Department, Université Paris-Saclay, INSERM U1184, Hôpital Bicêtre, APHP, FHU CARE, Le Kremlin-Bicêtre, France, ²APHP, Le Kremlin-Bicêtre, France, ³University Hospital Paris Saclay, Le Kremlin-Bicêtre, France, ⁴Université Paris-Saclay, Le Kremlin-Bicêtre, France, ⁵CHU Bicêtre APHP, Le Kremlin-Bicêtre, France
Background/Purpose: Among patients with auto-immune diseases (AID) treated with Rituximab (RTX), anti-drug antibodies (ADAb) leading to inefficacy and infusion reactions (Wincup and al., Ann Rheum…
Abstract Number: 2351 • ACR Convergence 2023
Health Outcomes Among Patients (Pts) with SLE Initiating Belimumab (BEL) with and Without the Use of Immunosuppressants in the Previous 2 Years
Yan Chen¹, Karen Worley², Brendan Rabideau¹, Bernard Rubin³, Benson Wu¹, Rose Chang¹ and Maral DerSarkissian¹, ¹Analysis Group, Boston, MA, ²GlaxoSmithKline, US Value Evidence and Outcomes, Cincinnati, OH, ³GlaxoSmithKline, US Medical Affairs and Immuno-inflammation, Durham, NC
Background/Purpose: BEL efficacy in pts with SLE has been previously demonstrated in clinical and real-world studies.1 However, there are limited data on differences in outcomes…
Abstract Number: 0607 • ACR Convergence 2023
CAR T Cell Therapy Leads to Long-term Abrogation of Autoimmunity in SLE Patients While Vaccination Responses Are Maintained
Georg Schett¹, Luis Munoz², Jule Taubmann³, Michael Aigner⁴, Christina Bergmann⁵, Johannes Knitza⁶, Gerhard Kroenke⁷, Dagmar Werner², Fabian Müller⁸ and Andreas Mackensen⁴, ¹Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, ²FAU Erlangen-Nürnberg, Erlangen, Germany, ³Department of Internal Medicine 3, Rheumatology and Immunology, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen Nürnberg, Erlangen, Germany, ⁴Department of Internal Medicine 5, Hematology and Oncology, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen Nürnberg, Erlangen, Germany, ⁵Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and University Hospital Erlangen, Erlangen, Germany, ⁶Department of Internal Medicine 3 Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg, University Hospital Erlangen, Erlangen, Germany, ⁷Charite Berlin, Berlin, Germany, ⁸Friedrich Alexander Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
Background/Purpose: We have previously shown that CD19 CAR T cell therapy leads to stable drug-free remission of treatment-resistant SLE (1,2). Based on these findings we…

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