Abstracts tagged "B-Cell Targets"

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: L03 • ACR Convergence 2021
COVID-19 Vaccine Antibody Responses in Patients Treated with B-Cell Agents Depend on B-Cell Counts at Time of Vaccine
Kyriakos Kirou and Jeffrey Zhang-Sun, Hospital for Special Surgery, New York, NY
Background/Purpose: Optimal COVID-19 vaccine responses are necessary to protect against severe infection. Patients with systemic rheumatic diseases (SRD) are at risk for not mounting adequate…
Abstract Number: L13 • ACR Convergence 2021
Efficacy and Safety of Subcutaneous Belimumab (BEL) and Rituximab (RTX) Sequential Therapy in Patients with Systemic Lupus Erythematosus: The Phase 3, Randomized, Placebo-Controlled BLISS-BELIEVE Study
Cynthia Aranow¹, Cornelia Allaart², Zahir Amoura³, Ian N Bruce⁴, Patricia Cagnoli⁵, Richard Furie¹, Paul Peter Tak⁶, Murray Urowitz⁷, Ronald van Vollenhoven⁸, Kenneth L Clark⁶, Mark Daniels⁹, Norma Lynn Fox¹⁰, Yun Irene Gregan¹⁰, James Groark¹¹, Robert B Henderson⁹, Mary Oldham⁹, Don Shanahan⁹, Andre van Maurik⁹, David A Roth¹⁰ and YK Onno Teng², ¹Feinstein Institutes for Medical Research, Northwell Health, Great Neck, NY, ²Leiden University Medical Center, Leiden, Netherlands, ³Centre National de reference pour le Lupus, Service de Medecine Interne 2, Institut E3M, Hopital Pitié-Salpétrière, Paris, France, ⁴NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Trust and Centre for Musculoskeletal Research, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom, ⁵University of Michigan Medical Center, Ann Arbor, MI, ⁶GlaxoSmithKline (At the time of the author's contribution to this study), Stevenage, United Kingdom, ⁷Toronto Western Hospital, University of Toronto, Lupus Clinic, Toronto, ON, Canada, ⁸Amsterdam University Medical Center, Amsterdam Rheumatology Center, Amsterdam, Netherlands, ⁹GlaxoSmithKline, Stevenage, United Kingdom, ¹⁰GlaxoSmithKline, Collegeville, PA, ¹¹GlaxoSmithKline (At the time of the author's contribution to this study), Collegeville, PA
Background/Purpose: Disease control remains an unmet need in SLE. The rationale for sequential BEL and RTX therapy in SLE was previously published.1 This study evaluated…
Abstract Number: L21 • ACR Convergence 2021
Rituximab versus Conventional Therapeutic Strategy for Remission Induction in Eosinophilic Granulomatosis with Polyangiitis: A Double-blind, Randomized, Controlled Trial
Benjamin Terrier¹, Gregory Pugnet², Claire de Moreuil³, Bernard Bonnotte⁴, Ygal Benhamou⁵, Elisabeth Diot⁶, Dominique Chauveau², Pierre Duffau⁷, Nicolas Limal⁸, Antoine Neel⁹, Geoffrey Urbanski¹⁰, Noemie Jourde-Chiche¹¹, Nicolas Martin-Silva¹², Francois Maurier¹³, Arsene Mekinian¹⁴, Nicolas Schleinitz¹¹, Felix Ackermann¹⁵, Anne-Laure Fauchais¹⁶, Antoine Froissart¹⁷, Thomas Le Gallou¹⁸, Yurdagul Uzunhan¹⁹, Jean-Francois Viallard⁷, Alice Berezne²⁰, Laurent Chiche²¹, Bruno Crestani¹⁴, Guillaume Direz²², Cecile-Audrey Durel²³, Pascal Godmer²⁴, Jean-Emmanuel Kahn²⁵, Marc Lambert²⁶, Thomas Quemeneur²⁷, Jacques Cadranel¹⁴, Pierre Charles²⁸, Antoine Dossier¹⁴, Lea Jilet²⁹, Loic Guillevin¹⁴, Hendy Abdoul²⁹ and Xavier Puechal¹⁴, ¹Cochin Hospital, Paris, France, ²CHU, Toulouse, France, ³CHU, Brest, France, ⁴CHU, Dijon, France, ⁵CHU, Rouen, France, ⁶CHU, Tours, France, ⁷CHU, Bordeaux, France, ⁸CHU, Creteil, France, ⁹CHU, Nantes, France, ¹⁰CHU, Angers, France, ¹¹CHU, Marseille, France, ¹²CHU, Caen, France, ¹³CH, Metz, France, ¹⁴CHU, Paris, France, ¹⁵Hopital Foch, Suresnes, France, ¹⁶CHU, Limoges, France, ¹⁷CHIC, Creteil, France, ¹⁸CHU, Rennes, France, ¹⁹CHU, Bobigny, France, ²⁰CH, Annecy, France, ²¹CH, Marseille, France, ²²CH, Le Mans, France, ²³CHU, Lyon, France, ²⁴CH, Vannes, France, ²⁵CHU, Boulogne, France, ²⁶CHRU, Lille, France, ²⁷CH, Valenciennes, France, ²⁸CH, Paris, France, ²⁹URC, Paris, France
Background/Purpose: Eosinophilic granulomatosis with polyangiitis (EGPA) is an eosinophilic ANCA-associated vasculitis.Glucocorticoids, alone or in combination with cyclophosphamide in severe forms, induce remission in most patients…
Abstract Number: 0004 • ACR Convergence 2021
Unappreciated Systemic Metabolic Functions of the Canonical B Cell Cytokines, BAFF and APRIL: Regulation of Lipolysis and Non-shivering Thermogenesis and Protection from Obesogenic Diet Induced Weight Gain
Isaac Harley¹, Calvin Chan², Paul Pfluger³, Trompette Aurelien⁴, Traci Stankiewicz⁵, Jessica Allen⁵, Maria Moreno-Fernandez⁵, Michelle Damen⁵, Jarren Oates⁵, Pablo Alarcon⁵, Jessica Doll⁶, Matthew Flick⁷, Leah Flick⁸, Juan Sanchez-Gurmaches⁹, Rajib Mukherjee⁹, Rebekah Karns¹⁰, Michael Helmrath¹¹, Thomas Inge¹², Stuart Weisberg¹³, Sunje Pamp¹⁴, David Relman¹⁵, Randy Seeley¹⁶, Matthias Tschoep¹⁷, Chris Karp¹⁸ and Senad Divanovic⁸, ¹University of Colorado Anschutz Medical Campus, Aurora, CO, ²University of Cincinnati, Cincinnati, OH, ³Technical University of Munich, Munich, Germany, ⁴Le Centre hospitalier universitaire vaudois, Lausanne, Switzerland, ⁵Cincinnati Children's Hospital Medical Center, Division of Immunobiology, Cincinnati, OH, ⁶Cincinnati Children's Hospital Medical Center, Division of Immunobiology, Cincinn, OH, ⁷Division of Experimental Hematology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ⁸Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁹Division of Endocrinology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹⁰Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹¹Pediatric General and Thoracic Surgery, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, ¹²Department of Surgery, Children’s Hospital Colorado, Aurora, CO, ¹³Columbia University Medical Center, New York, NY, USA, New York, NY, ¹⁴Danmarks Tekniske Universitet, Lyngby, Denmark, ¹⁵Department: Medicine - Med/Infectious Diseases - Stanford University, Stanford, ¹⁶Department of Surgery, Internal Medicine and Nutritional Sciences, University of Michigan, Ann Arbor, MI, ¹⁷Division of Metabolic Diseases, Technische Universität München, Munich, Germany, ¹⁸Division of Molecular Immunology, Cincinnati Children’s Hospital Medical Center, Cincinnati
Background/Purpose: The impact of immune mediators on weight homeostasis and systemic metabolism remains underdefined. Interrogation of resistance to diet-induced obesity in mice lacking a negative…
Abstract Number: 0496 • ACR Convergence 2021
Safety and Efficacy of Rituximab for Systemic Sclerosis: A Double-Blind, Parallel-Group Comparison, Investigators Initiated Confirmatory Randomized Clinical Trial (DESIRES Study)
Satoshi Ebata¹, Ayumi Yoshizaki¹, Koji Oba², Kosuke Kashiwabara³, Keiko Ueda³, Yukari Umemura⁴, Takeyuki Watadani⁵, Takemichi Fukasawa¹, Shunsuke Miura¹, Asako Yoshizaki-Ogawa¹, Yoshihide Asano¹, Naoko Okiyama⁶, Masanari Kodera⁷, Minoru Hasegawa⁸ and Shinichi Sato¹, ¹Department of Dermatology, The University of Tokyo, Graduate School of Medicine, Tokyo, Japan, ²Department of Biostatistics, School of Public Health, Graduate School of Medicine, and Interfaculty Initiative in Information Studies, The University of Tokyo, Tokyo, Japan, ³Clinical Research Support Center, The Tokyo University Hospital, Tokyo, Japan, ⁴Biostatistics Section, Department of Data Science, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan, ⁵Department of Diagnostic Radiology, The University of Tokyo, Graduate School of Medicine, Tokyo, Japan., Tokyo, Japan, ⁶Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan., Ibaraki, Japan, ⁷Department of Dermatology, Japan Community Health Care Organization Chukyo Hospital, Aichi, Japan., Aichi, Japan, ⁸Department of Dermatology, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan., Fukui, Japan
Background/Purpose: Systemic sclerosis (SSc) is a systemic autoimmune disease belonging to collagen diseases, characterized by fibrosis of various organs including the skin and lungs, and…
Abstract Number: 0648 • ACR Convergence 2021
Improving Post-Rituximab Hypogammaglobulinemia Risk Assessments: A Fellows’ Quality Improvement Initiative
Beth Rutstein¹, Melissa Argraves², Atiye Bilgic Dagci², Sarah Bayefsky², Julia Rood², Julie Chase³, Jay Mehta², Melissa Lerman², Cory Stingl⁴ and Jon Burnham², ¹Children's Hospital of Philadelphia, Wynnewood, PA, ²Children's Hospital of Philadelphia, Philadelphia, PA, ³The Children's Hospital of Philadelphia, Philadelphia, PA, ⁴Children's Hospital of Philadelphia, Durham, NC
Background/Purpose: Hypogammaglobulinemia following rituximab therapy is a potentially severe complication that can lead to infection-related morbidity and mortality. If recognized, clinicians may prevent infections by…
Abstract Number: 0964 • ACR Convergence 2021
Rituximab Treatment Dramatically Reduces Neutralizing Humoral Response to mRNA SARS-COV-2 Vaccines in Patients with Autoimmune Diseases
Samuel Bitoun¹, Julien Henry², Christelle Vauloup Fellous³, Raphaele Seror⁴, Lina Mouna³, Candie Joly⁵, Delphine Desjardins⁵, Marie Bitu⁵, Roger Le Grand⁶, Anne-Marie Roque Afonso³ and Xavier Mariette⁷, ¹Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, INSERM UMR 1184 FHU CARE, Paris, France, ²Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, INSERM UMR 1184 FHU CARE, Le Plessis Robinson, France, ³AP–HP, Hôpital Paul-Brousse, Department of Virology, University Paris Saclay, INSERM U1193,, Villejuif, France, ⁴Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, INSERM UMR 1184, FHU CARE FHU CARE, Le kremlin Bicetre, France, ⁵Paris-Saclay University, Inserm UMR 1184, FHU CARE, CEA, Le Kremlin Bicêtre, France, ⁶UMR1184, IDMIT Department, Université Paris-Saclay, Inserm, CEA, Fontenay Aux Roses, France, ⁷Université Paris- Saclay, Rheumatology, Paris, France
Background/Purpose: The global COVID-19 pandemic is starting to be controlled by massive vaccination. Some immunosuppressed patients have already paid a high price to the pandemic…
Abstract Number: 1391 • ACR Convergence 2021
Rituximab Is Superior to Placebo in Polymyalgia Rheumatica Patients: A Double Blind Randomized Controlled Proof of Principle Trial
Diane Marsman¹, Nathan den Broeder², Frank van den Hoogen³, Alfons den Broeder¹ and Aatke van der Maas⁴, ¹Sint Maartenskliniek, Nijmegen, Gelderland, Netherlands, ²Radboud University Medical Centre, Nijmegen, Gelderland, Netherlands, ³Sint Maartenskliniek, Ubbergen, Gelderland, Netherlands, ⁴St Maartenskliniek, Nijmegen, Gelderland, Netherlands
Background/Purpose: Corticosteroids remain the cornerstone of polymyalgia rheumatica treatment, but their use has several disadvantages such as long treatment duration and glucocorticoid-related adverse events.1,2 Data…
Abstract Number: 1443 • ACR Convergence 2021
Long-term Effectiveness of Ultra-Low Doses of Rituximab in Rheumatoid Arthritis
Nathan den Broeder¹, Lise Verhoef², Yael De Man³, Marc Kok⁴, Rogier Thurlings⁵, Wilfred van der Weele⁶, Bart van den Bemt⁷, Frank van den Hoogen⁸, Aatke van der Maas⁹ and Alfons den Broeder¹⁰, ¹Radboud University Medical Centre, Nijmegen, Gelderland, Netherlands, ²Sint Maartenskliniek, Nijmegen, Netherlands, ³Ziekenhuisgroep Twente (Hospital Group Twente), Borne, Netherlands, ⁴Maasstad Hospital, Rotterdam, Netherlands, ⁵Radboud University Medical Centre, Nijmegen, Netherlands, ⁶Reade, Amsterdam, Netherlands, ⁷Sint Maartenskliniek; Radboud University Medical Center, Ubbergen, Netherlands, ⁸Sint Maartenskliniek, Ubbergen, Gelderland, Netherlands, ⁹St Maartenskliniek, Nijmegen, Gelderland, Netherlands, ¹⁰Sint Maartenskliniek, Nijmegen, Gelderland, Netherlands
Background/Purpose: The optimal rituximab (RTX) dose for the treatment of rheumatoid arthritis remains unclear. RTX treatment of 1000mg per 6 months and 2000mg per 6…
Abstract Number: 1528 • ACR Convergence 2021
Clinical Consequences of Hepatitis B Core Antibody Positivity After IVIG Administration
William West¹, Therese Posas-Mendoza², Jerald Zakem³, William Davis¹ and Robert Quinet⁴, ¹Ochsner Medical Center, New Orleans, LA, ²Ochsner Clinic Foundation, New Orleans, LA, ³Ochsner Health Systems, Metairie, LA, ⁴Ochsner Health, River Ridge, LA
Background/Purpose: Intravenous immunoglobulin (IVIG) is a blood product created by pooling of donor plasma that is used for a wide range of indications. IVIG is…
Abstract Number: 1732 • ACR Convergence 2021
Effects of B Cell Activating Factors/B Lymphocyte Stimulator Inhibitors Added to Standard of Care on Infection in Patients with Systemic Lupus Erythematosus: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Ruoning Ni¹, Jiayi Zheng² and Ruru Guo³, ¹Saint Agnes Healthcare, Baltimore, MD, ²Department of Rheumatology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China (People's Republic), ³Renji Hospital, Shanghai, China (People's Republic)
Background/Purpose: The efficacy of B cell activator factor/B lymphocyte stimulator inhibitors (BAFFi/BLySi) for systemic lupus erythematosus (SLE) has been proven in clinical trials. However, it…
Abstract Number: 1905 • ACR Convergence 2021
CD11c+ Expression Associates with IFN-λ Responsiveness in Human B Cells with Clinical Implications for SLE
Jennifer Barnas¹, Jennifer Barnard², Cameron Baker², Nida Meednu², Andrew McDavid¹, R. John Looney¹ and Jennifer Anolik², ¹University of Rochester, Rochester, NY, ²University of Rochester Medical Center, Rochester, NY
Background/Purpose: Type I interferon (IFN), namely IFN- α, and B cell aberrations are long recognized in systemic lupus erythematosus (SLE) pathogenesis. Type I IFN receptor…
Abstract Number: 1050 • ACR Convergence 2020
Rituximab in the Treatment of Interstitial Lung Disease Associated with Autoimmune Diseases: Experience from a Single Referral Center
Belén Atienza-Mateo¹, Sara Remuzgo-Martínez², Diana Prieto-Peña¹, Víctor Manuel Mora Cuesta³, David Iturbe-Fernández³, Sonia Fernández Rozas¹, Alfonso Corrales¹, José Manuel Cifrián² and Miguel Ángel González-Gay⁴, 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, ²Research group on genetic epidemiology and atherosclerosis in systemic diseases and in metabolic bone diseases of the musculoskeletal system, IDIVAL, Santander, Spain, ³Research group on genetic epidemiology and atherosclerosis in systemic diseases and in metabolic bone diseases of the musculoskeletal system, IDIVAL; and Department of Pneumology, Hospital Universitario Marqués de Valdecilla, Santander, Spain, ⁴Hospital Universitario Marques de Valdecilla, Santander, Cantabria, Spain
Background/Purpose: The presence of interstitial lung disease (ILD) in patients with autoimmune diseases (AD)s influences significantly on their morbidity and mortality [1]. Different treatment strategies…
Abstract Number: 1439 • ACR Convergence 2020
Proteinase 3-Reactive B Cell Pool Restructuring After Rituximab and Risk of Relapse in Severe PR3-ANCA-Associated Vasculitis
Alvise Berti¹, Sophie Hillion², Marta Casal Moura¹, Amber Hummel¹, Eva Carmona¹, Tobias Peikert¹, Carol Langford³, Peter A. Merkel⁴, Paul Monach⁵, Philip Seo⁶, Robert Spiera⁷, Eugene St Clair⁸, Fernando C. Fervenza¹, Kristina Harris⁹, John H. Stone¹⁰, Jacques-Olivier Pers¹¹, Ulrich Specks¹ and Divi Cornec¹², ¹Mayo Clinic, Rochester, MN, ²Brest University, Brest, Bretagne, France, ³Cleveland Clinic, Moreland Hills, OH, ⁴Division of Rheumatology University of Pennsylvania, Philadelphia, PA, ⁵Brigham and Women's, Boston, ⁶Johns Hopkins University, Baltimore, MD, ⁷Division of Rheumatology, Hospital for Special Surgery, New York, New York, USA, New York, NY, ⁸Duke University, Durham, NC, ⁹Immune Tolerance Network, Bethesda, MD, ¹⁰Massachusetts General Hospital Rheumatology Unit, Harvard Medical School, Boston, MA, ¹¹University of Brest, Brest, France, ¹²Rheumatology Department, Brest University Hospital, Brest, France
Background/Purpose: In ANCA-associated vasculitis (AAV) B cells play a central pathogenic role and are instrumental for the production of ANCA, which are thought to mediate…

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