Idiopathic Inflammatory Myopathies

This is the first-in-human trial of MTS109 (mRNA-LNP). The goal of this clinical trial is to evaluate the safety, tolerability of intravenous injection of MTS109 in moderate to severe autoimmune diseases.

This trial is a Phase 1b, open-label, multi-center, clinical study of AZD0120, a BCMA/CD19 dual targeting CAR+ T-cell therapy, to evaluate the safety and tolerability in adult participants with systemic sclerosis (SSc), idiopathic inflammatory myopathies (IIM), or difficult-to-treat rheumatoid arthritis (D2T RA).

The purpose of this study is to measure the safety, tolerability, PK, and PD of AZD5492 administered subcutaneously in adult participants with SLE or IIM or RA Study details include: • The study duration will be a minimum of 180 days in addition to the screening period. Additional follow-up visits may be required up to 12 months from study start. * Depending on the study part they are assigned to, participants will be administered AZD5492 once (Part 1) or twice (Part 2). * Study visits will occur at: Screening, Days 1-4, 8, 15, 22, 30, 60, 90, 120, 150, and 180 in Part 1, Screening, Days 1-4, 8-11, 15, 22, 29, 43, 60, 90, 120, 150, and 180 in Part 2.

This study corresponds to a monocentric prospective cohort of adult patients presenting a suspicion of idiopathic inflammatory myopathy. It will allows the constitution of an organized collection of longitudinal clinical data as well as collection of biological samples, including blood sample, urine, stool and muscle specimen.

Inflammatory Cardiovascular Diseases and Autoimmune Rheumatic Diseases (ICARDs) encompass cardiovascular involvement in connective tissue diseases, vasculitis, and primary inflammatory cardiac processes affecting all layers of the heart. ICARDs are associated with increased cardiovascular morbidity and mortality, independently of traditional risk factors, via multiple pathophysiological mechanisms. Diagnosis and prognosis are challenged by the heterogeneity of clinical presentations. Multimodality cardiovascular imaging - including cardiovascular magnetic resonance (CMR), transthoracic echocardiography, and positron emission tomography (PET) - plays a central role in detecting and characterizing inflammatory involvement, and may offer prognostic insights. Given the limited data on the diagnostic and prognostic utility of these imaging modalities in ICARDs, the EACVI-INFLAME study aims to assess the prevalence of confirmed cardiovascular involvement in patients with suspected or established ICARDs undergoing CMR and/or cardiac PET in a multicentric international cohort.

This is a Phase 1/2, open-label, multi-center, multi-cohort, non-randomized dose escalation and dose expansion basket study to determine the safety and tolerability of NKX019 (allogeneic CAR NK cells targeting CD19) in participants with autoimmune diseases.

The purpose of this study is to determine the safety and tolerability of XmAb657 in healthy participants and participants with autoimmune diseases. Participants will be given XmAb657 subcutaneously (SC) by injection under the skin.

This is a single-arm, open-label, investigator-initiated trial (IIT) designed to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics and efficacy of RD06-05 in patients with autoantibody-mediated autoimmune diseases. The enrolled population consists of patients with active autoimmune diseases, including systemic lupus erythematosus (SLE), systemic sclerosis (SSc), ANCA-associated vasculitis (AAV), idiopathic inflammatory myopathies (IIM), Sjögren's syndrome (SS), among others. The CAR-T cell dose used in this study is 6×10⁶ CAR⁺ T cells/kg. Six subjects will be enrolled for each indication, with a total of 30 subjects to be enrolled.

Research into novel therapies for rare, immune-mediated inflammatory diseases (IMIDs) is limited due to small patient populations. Patients with Behçet's disease (BD), idiopathic inflammatory myopathy (IIM, also known as myositis) and IgG4-related disease (IgG4-RD) are treated with high-dosed glucocorticoids, methotrexate, azathioprine and mycophenolate mofetil, mostly for long periods of time with attendant risks of long-term toxicity, including infections. Therefore, there is an urgent need for new, more specific anti-inflammatory therapies such as targeted synthetic and biological disease-modifying antirheumatic drugs. Due to the role of type 1 interferon in both BD, IIM and IgG4-RD, JAK-STAT inhibition may be a promising treatment strategy in these conditions, because JAK1 is critical for the signal transduction of pro-inflammatory cytokine receptors. Previous research showed that JAK1 inhibition reduces activation of type 1 interferon-regulated proteins and key chemokines that control tissue inflammation.

This is an open clinical pharmacological translational Research Study, aiming to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics and efficacy of CD19 or CD19-BCMA CAR-T in patients with active SLE, SSc, AAV, IIM and pSS.

Neurological Autoimmune Diseases (NADs) are disorders caused by abnormal immune system attacks on neural tissues, affecting multiple systems including the central nervous system, peripheral nervous system, and neuromuscular junctions. This study examines clinically significant NADs such as multiple sclerosis (MS), neuromyelitis optica spectrum disorders (NMOSD), myelin oligodendrocyte glycoprotein G antibody-related diseases (MOGAD), autoimmune encephalitis (AE), immune-mediated peripheral neuropathy (PN), myasthenia gravis (MG), and idiopathic inflammatory myopathy (IIM). While sharing the core pathogenesis of autoimmune response, these diseases exhibit significant heterogeneity in epidemiological patterns, clinical manifestations, therapeutic approaches, and disease progression. This heterogeneity stems from multiple factors: (1) Differences in immune targets: MS primarily involves T-cell-mediated myelin attack, NMOSD is mainly driven by astrocyte damage caused by anti-AQP4 antibodies, MOGAD results from myelin surface loss mediated by antibodies against myelin oligodendrocyte glycoprotein immunoglobulin G, while AE involves synaptic dysfunction due to antibodies against neuronal surface proteins (e.g., anti-NMDA-R antibodies); (2) Genetic-environmental interactions: MS is more prevalent in European and American populations, whereas NMOSD is more aggressive in Asian populations; (3) Variability in treatment response: Some diseases respond well to immunomodulatory therapy, but most still face challenges such as high relapse rates, progressive disability accumulation, and irreversible neurological damage. While randomized controlled trials (RCTs) provide high-quality core evidence for drug registration, their strict inclusion/exclusion criteria, relatively homogeneous patient populations, and short-term observation designs often fail to fully capture the complex disease progression and treatment response patterns in real-world clinical settings. Additionally, long-term RCTs are frequently constrained by economic factors and sustainability challenges. Therefore, conducting comprehensive real-world observational studies (RWS) on NADs-integrating multi-disease cohorts, long-term follow-up data, and diverse clinical practices-holds significant scientific and clinical value for optimizing treatment strategies and improving long-term patient outcomes.

To evaluate the efficacy of Pozelimab/Cemdisiran combination therapy in patients with sIBM

This study is a phase Ib/IIa dose-escalation study designed to evaluate the safety, tolerability, and preliminary efficacy of autologous T cells expressing chimeric antigen receptor (CAR)-targeted B-cell activating factor receptor (BAFFR) in refractory neuroimmune diseases. The study design is divided into two parts, the first of which will be given to each patient at 3 incremental dose levels to establish the maximum tolerated dose (MTD). Each disease is expected to enroll 12 patients who meet the inclusion criteria. In the second part, 15 patients per disease will be recruited to further characterize the efficacy of the MTD.

This is an open-label, investigator-initiated clinical trial (IIT) designed to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and efficacy of RD06-04 in patients with refractory IIM and AAV. The study plans to enroll a total of 12 participants, with 6 cases each for IIM and AAV. Enrollment for both diseases will proceed in parallel. The dose will be 6×10\^6 CAR+T cells/kg (±30%), and patients will receive a single infusion of RD06-04.

This clinical trial is designed as a single - arm, open - label, single - center, investigator - initiated early - phase clinical study. The primary objective is to evaluate the safety of UTAA91 injection in treating subjects with relapsed/refractory autoimmune inflammatory diseases (AID).

The AYLo study (AutoimmunitY and Loss of y - Investigating the Role of Hematopoietic Mutations and Mosaic Mutation in the Y Chromosome in Autoimmune Rheumatologic Diseases) aims to systematically investigate hematopoietic mutations, such as hematopoietic (mosaic) loss of the Y chromosome (mLOY), focusing on their underlying causes, pathophysiological significance, patterns of manifestation, and impact on disease progression in autoimmune, rheumatologic disorders. This research seeks to bridge existing knowledge gaps by exploring how such mutations influence immune homeostasis, cellular function, and susceptibility to inflammation-driven pathologies. Through the integration of advanced immunological profiling, the study aspires to uncover key mechanisms that drive the initiation, progression, and complications of autoimmune rheumatic diseases. These analyses will combine single nucleotide polymorphisms (SNP) arrays, multiplex assays, transcriptomics, and flow cytometry staining of peripheral blood mononuclear cells to delineate the interplay between hematopoietic mutations and immune dysregulation. A further objective is the development of a multimodal framework for disease-specific characterization, enabling precise mapping of mutation-driven phenotypes across diverse autoimmune conditions. This framework will incorporate clinical, molecular, and imaging data. Additionally, the AYLo study aims to explore the potential role of mLOY and other hematopoietic mutations as biomarkers for disease stratification, prognosis, and therapeutic response. The findings may open avenues for personalized treatment approaches, leveraging the molecular insights to inform targeted interventions and improve patient outcomes in autoimmune rheumatic disorders. By integrating translational and basic science approaches, this study has the potential to redefine current paradigms in autoimmune disease research and therapy.

As a T2T, our patients with idiopathic inflammatory myopathies will receive pulse therapies with methyprednisolone and/or human intravenous immunoglobulin, or only methyprednisolone at disease onset. This scheme is an internal routine protocol of our Service.

Neurological autoimmune diseases are a group of disorders characterized by the abnormal immune response attacking the nervous system, including the brain, spinal cord and peripheral nerves. These diseases exhibit high heterogeneity, diverse clinical presentations, and are challenging to diagnose and manage due to a lack of effective treatments. In this study, the investigators will recruit eight kinds of autoimmune diseases of nervous system including Neuromyelitis Optica Spectrum Disorder (NMOSD), Myasthenia Gravis (MG), Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP), idiopathic inflammatory myopathy (IIM), and multiple sclerosis (MS), autoimmune encephalitis (AE), Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (MOGAD). Through this study, the investigators aim to discover biomarkers with high sensitivity, specificity, and stability, which can support early diagnosis, disease monitoring, and personalized treatment for neurological autoimmune diseases, thereby improving the quality of life and prognosis for patients.

Antibody-mediated inflammatory diseases of the nervous system (also known as autoimmune diseases of the nervous system) are autoimmune diseases in which autoimmune cells and immune molecules attack the nervous system as the main pathogenic mechanism. In the immune response, pathogenic antibodies acting on autoantigens of the nervous system are collectively referred to as autoantibodies of the nervous system, and antibody-mediated inflammatory diseases of the nervous system can occur in the central nervous system, peripheral nervous system, and neuromuscular junctions, and muscles. In this study, we will recruit eight kinds of autoimmune diseases of nervous system including Neuromyelitis Optica Spectrum Disorder (NMOSD), Myasthenia Gravis (MG), Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP), idiopathic inflammatory myopathyand (IIM), multiple sclerosis (MS), autoimmune encephalitis (AE), Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (MOGAD) and POEMS Syndrome. B-cell maturation antigen (BCMA) is expressed on the surface of plasma cells, thus making it an ideal target for targeted therapies. Chimeric antigen receptor (CAR) T cells against BCMA offers another potential therapeutic option to eliminate plasma cells in patients with neurological autoimmune diseases driven by abnormal antibody who still suffer recurrent attacks from conventional treatments. In the current study, the safety and efficacy of a novel CAR-T cell therapy using CT103A cells, are evaluated in patients with relapsed/refractory antibody-mediated idiopathic inflammatory diseases.

This study is a preliminary investigation, with a single-group design, not randomized and transparent, focusing on treatment. Its purpose is to identify the highest dose of BH002 injection (CD19-BCMA CAR-T cells) that patients suffering from resistant systemic lupus erythematosus can tolerate.

To evaluate the safety and efficacy of CD19-CAR-DNT cells in subjects with relapsed/refractory autoimmune diseases

Idiopathic inflammatory myositis (IIM), also known as myositis, are a heterogeneous group of diseases characterized by chronic inflammation of striated muscles and skin, with different clinical manifestations, treatment responses, and prognosis. This project will build a clinical follow-up cohort for idiopathic inflammatory myositis (IIM) centered on Renji Hospital, Shanghai Jiao Tong University School of Medicine, to promote the clinical and pathogenesis of this group of diseases.