Schedule

Co-Chairs: Andrew Mammen (USA); Jessica Neely (USA) Muscle Transcriptomics in IIM Iago Pinal-Fernandez (NIH, USA) Muscle Transcriptomics in JDM Jessica Turnier (University of Michigan, USA) Tissue-resident memory T cells identified in IIM using single cell transcriptomics Karine Chemin (Karolinska Institutet, Sweden) Selected Oral Presentations O-1 Characterization of a Mouse Model for Jo-1, PL-7 and PL-12 Associated Anti-synthetase Syndrome Derya Cengiz (Universität Düsseldorf, Germany) O-2 Tissue Inflammation Drives Severe Mitochondrial Dysfunction in a Mouse Model of IFNγ-Dependent Myositis Olivier Boyer (Rouen University Hospital, France)

Plenary

Break

Co-Chairs: Merrilee Needham (Australia); Adam Schiffenbauer (USA) Immunostimulatory Effects of Herbal Supplements in Dermatomyositis DeAnna Diaz (Rutgers, USA) Genetic Risk Factors in IIM Janine Lamb (University of Manchester, UK) COVID-19 Safety of COVID-19 Vaccination in RD - COVAX Registry Pedro Machado (University College London, UK) COVID and Myositis - what we know so far Latika Gupta (University of Manchester, UK) Neuromuscular Complications of COVID-19 Joome Suh (Harvard, USA) Selected Oral Presentations O-3 Incident Case of Myositis During Post-COVID-19 Period: A Multicentric Ecological Study on Immunobiological and Medico-administrative Databases Yves Allenbach (Sorbonne Université, France) O-4 Transcriptomic Profiles in Muscle Biopsies from Systemic Sclerosis Patients with Different Autoantibodies Maria Casal-Dominguez (NIH, USA)

Plenary

Exploring Frontiers in Dermatomyositis: an Interactive Symposium Speaker: Rohit Aggarwal (University of Pittsburgh, USA) Welcome and Introduction From Diagnosis to Long-Term Outcomes - Dissecting a Case Changing Landscape of Patient Monitoring and Management Closing Remarks

Octapharma

Co-Chairs: Tony Amato (USA); Vladimir Liarski (USA) Current State of IBM Merrilee Needham (Murdoch University, Australia) Disease Models of IBM and their Therapeutic Implications Thomas Lloyd (Baylor College of Medicine, USA) Single-nucleus RNA Sequencing in IBM Christopher Nelke (Universitätsklinikum Düsseldorf, Germany) Mimics of IBM Clinical Mimics of IBM Elie Naddaf (Mayo Clinic, USA) Morphological Mimics of IBM Werner Stenzel (Charité Universitätsmedizin, Germany) Selected Oral Presentations O-5 In Vitro Phenotypes of Myoblasts Obtained from Patients with Inclusion Body Myositis Andrew Wilson (Johns Hopkins, USA) O-6 Efficacy of Rapamycin and Sodium Phenylutyrate in a Xenograft Model of Inclusion Body Myositis Chiseko Ikenaga (Johns Hopkins, USA)

Plenary

· Pathogenesis of Inflammatory Myopathy · Genetic and Environmental Risk Factors · Inclusion Body Myositis · Classification of Inflammatory Myopathies

Poster Session

Co-Chairs: Didem Saygin (USA); Ingrid Lundberg (Sweden) European Neuromuscular Centre Workshop for IBM James Lilleker (Northern Care Alliance NHS Foundation Trust, UK) European Neuromuscular Centre Workshop for Dermatomyositis, Immune Mediated Necrotizing Myositis, and Anti-Synthetase Syndrome Yves Allenbach (Sorbonne Université, France) Pathologic Classification of IIM Jantima Tanboon (Mahidol University, Thailand) Classification of Overlap Myositis Océane Landon-Cardinal (Université de Montréal, Canada) CLASS Project Update Giovanni Zanframundo (University of Pavia, Italy) Panel Discussion with audience participation Moderators: Didem Saygin (USA) and Ingrid Lundberg (Sweden)

Plenary

CAR-T Cell Therapy: “The Future is Now” Georg Schett (FAU Erlangen-Nürnberg, Germany)

Key-Note