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
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: 0244 • ACR Convergence 2024
Adjunctive Belimumab Exerts Favorable Ferritin Recovery and Survival for Post-COVID Interstitial Lung Disease in Patients with Immune Mediated Inflammatory Diseases Treated with Rituximab: A Case Series
Background/Purpose: Post-COVID interstitial lung disease (post-COVID ILD) is a critical sequelae yet the role of immunomodulatory therapies remains unclear. We explored to characterize post-COVID ILD…Abstract Number: 1396 • ACR Convergence 2024
Low CD47 Expression on B Cells, Induces High B Cell Phagocytosis by Macrophages and Is a Predictive Biomarker of Anti-rituximab Antibodies and Lower Response in Rheumatoid Arthritis
Background/Purpose: Rituximab (RTX) provides long lasting efficacy in the control of rheumatoid arthritis. Among factors associated with RTX failure are the occurrence of anti-drug antibodies…Abstract Number: 2074 • ACR Convergence 2024
Experience on the Use of Obinutuzumab off Label in Patients with Refractory Idiopathic Inflammatory Myopathy
Background/Purpose: Idiopathic inflammatory myopathy (IIM) is a rare multisystem inflammatory condition leading to significant disability. The management of IIM remains challenging. B cell targeting therapies are…Abstract Number: 0002 • ACR Convergence 2024
Preclinical Evaluation of BCMA And/or CD19 Nanobody-based Single or Compound CAR-T Cells Targeting B and Plasma Cells Associated with Autoimmune Disorders
Background/Purpose: CD19 single and BCMA-CD19 compound chimeric antigen receptor (CAR) T cell therapy has demonstrated remarkable activity against autoimmune disorders, although relapses with CD19 CAR…Abstract Number: 0304 • ACR Convergence 2024
Severe Infection in COVID-19 Vaccinated Patients with Systemic Autoimmune Rheumatic Diseases on B Cell Targeted Therapies: Association with Neutrophil-lymphocyte Ratio
Background/Purpose: Patients with systemic autoimmune rheumatic diseases (SARDs) are at higher risk of general infection due to the presence of comorbidities, underlying disease activity, and…Abstract Number: 1421 • ACR Convergence 2024
Differential Impact of B-cell Targeted Monotherapy and Combination Regimen on the Peripheral Blood Transcriptome of Adults with Active Sjögren Disease
Background/Purpose: Sjögren disease (SD) is characterised by B-cell hyperactivity associated with increased levels of B-lymphocyte stimulator (BlyS), but there are no effective biologic treatments for…Abstract Number: 2084 • ACR Convergence 2024
Efficacy and Safety of a Step-down Regimen of Low Dosage of Glucocorticoids Combined with Early Administration of Synthetic or Biologic Immunosuppressants in Anti-synthetase Syndrome: A Pilot Study
Background/Purpose: Anti-synthetase syndrome (ASS) is a rare autoimmune disease characterized by the presence of anti-aminoacyl-transfer-RNA synthetase antibodies (ARS) and the involvement of muscles, skin, joints,…Abstract Number: 0003 • ACR Convergence 2024
CLN-978, a CD19-directed T Cell Engager (TCE), Leads to Rapid and Deep B Cell Depletion and Has Broad Potential for Development in Autoimmune Diseases
Background/Purpose: CD19-directed CAR T cell therapy has been reported to induce profound B cell depletion and deep clinical responses, including drug-free remission, in patients with…Abstract Number: 0512 • ACR Convergence 2024
Co-stimulatory Blockade Causes Targeted Quantitative and Clonotypic Contractions in Extrafollicular B-cell Subsets in Seropositive RA Patients
Background/Purpose: Of all approved biologic therapies, other than anti-CD20 depletion only CTLA4-Ig/abatacept treatment reduces levels of pathologic autoantibodies. Herein, our primary goal has been to…Abstract Number: 1533 • ACR Convergence 2024
Imvotamab, a CD20-Targeted Bispecific IgM T Cell Engager, Effectively Depletes Low-Expressing CD20+ B Cells in Preclinical Models of Autoimmune Disease
Background/Purpose: B cell depletion therapy (BCDT) with conventional IgG mAbs has been employed for the treatment of autoimmune (AI) disease for ~20 years; however, many…Abstract Number: 2257 • ACR Convergence 2024
Comparison of the Safety and Effectiveness of Originator Rituximab (Mabthera®) versus Biosimilar (Riximyo®) in Rheumatoid Arthritis: A Retrospective Unicentric Analysis
Background/Purpose: Immunobiological drugs emerged as a revolutionary option for treating inflammatory chronic rheumatic diseases, particularly rheumatoid arthritis (RA). However, the extremely high costs associated with…Abstract Number: 0004 • ACR Convergence 2024
Beyond Antibodies and CAR-T: Topologically Engineered, Superdimeric Antibody NK Engagers and T Cell Engagers for B Cell Depletion Demonstrating Cooperative Binding to Target and Effector Cells
Background/Purpose: The dramatic demonstration of CD19 CAR-T efficacy in systemic lupus erythematosus (SLE), idiopathic inflammatory myositis, and systemic sclerosis by Georg Schett and colleagues (F.…Abstract Number: 0513 • ACR Convergence 2024
Effects of Cumulative Rituximab Exposure in Patients with Rheumatoid Arthritis: Results from Cohort at a Tertiary Academic Health Care Setting
Background/Purpose: Rituximab targets CD20-positive B cells and is used to treat rheumatoid arthritis (RA). B cell depletion may result in hypogammaglobulinemia. Hypogammaglobulinemia is a risk…Abstract Number: 1541 • ACR Convergence 2024
Effect of Rituximab on Long-term Damage Acquisition in Patients with Systemic Lupus Erythematosus
Background/Purpose: B-cell depletion has been used to treat patients with systemic lupus erythematosus (SLE) for over twenty years, but we still lack studies that evaluate…
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