A Study to Assess the Long-term Safety and Efficacy of a Subcutaneous Formulation of Efgartigimod in Adults With Active Idiopathic Inflammatory Myopathy

Instituto Peruano Del Hueso Y La Articulacion Sac-Privado-Lima,Centro De Investigacion Iphar, Lima

Fondazione Policlinico Universitario Agostino Gemelli - Neurology, Roma

Chung Shan Medical University Hospital, Taichung

Copenhagen University Hospital-Rigshospitalet University Hospital, Copenhagen

Cyprus Institute of Neurology and Genetics, Nicosia

Universitair Ziekenhuis Leuven Gasthuisberg Campus, Leuven

Centro Medico Privado de Reumatologia, San Miguel de Tucumán

Clinica San Juan de Dios - sede Arequipa - Rheumatology, Arequipa

Medical Centre Artmed, Plovdiv

Tirol Kliniken - A.o. Landeskrankenhaus Innsbruck - Neurology, Innsbruck

AZ Sint-Lucas - Campus Sint-Lucas - Neurology, Ghent

Charite Universitaetsmedizin Berlin - Campus Charite Mitte (CCM) - Rheumatology, Berlin

King Chulalongkorn Memorial Hospital - Neurology, Bangkok

Phramongkutklao Hospital, Bangkok

Siriraj Hospital, Mahidol University of Internal medicine, Bangkok

Clinical Center of Serbia, Belgrade

Institute of Rheumatology, Belgrade

Northwell Health Physician Partners Rheumatology, Great Neck

ATTIKON University General Hospital - Neurology, Athens

Revmatologicky Ustav, Prague

University of Pittsburgh Medical Center, Pittsburgh

Karolinska Universitestssjukhus Solna, Solna

Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) - Ospedale San Raffaele Hospital, Milan

Hospital Universitario 12 de Octubre, Madrid

Emory Healthcare - Emory Clinic - Rheumatology, Atlanta

Mayo Clinic - Florida - Neurology, Jacksonville

UF Health - Rheumatology Medical Specialties Medical Plaza, Gainesville

Faculty Of Medicine, Khon Kaen University, Khon Kaen

Hospital Universitari i Politecnic La Fe de Valencia - Neurology, Valencia

Azienda Ospedaliero Universitaria Pisana - Ospedale Santa Chiara - Rheumatology, Pisa

Northwestern Medicine - Northwestern Memorial Hospital, Chicago

Universitatsmedizin Mannheim GmbH, Mannheim

Azienda Ospedaliero Universitaria Consorziale Policlinico, Bari

Universitaetsklinikum Tuebingen (UKT), Tübingen

Reference Center Neuro-Muscular Diseases - CHU Paris Group Hospitalier La Pitie Salpetriere-Charles Foix, Paris

Nerve And Muscle Center Of Texas, Houston

Austin Neuromuscular Center (National Neuromuscular Research Institute, PLLC), Austin

Neuromuscular Clinical and Research Center - Neurology, Phoenix

Klinikum der Universitaet Ulm, Ulm

Attune Health Research, Inc, Beverly Hills

UCI Health - ALS and Neuromuscular Center - Neurology, Orange

UCSF Health - ALS and Neurodegenerative Disease Center - Dermatology, San Francisco

Oregon Health and Science University, Portland

Centro Dermatologico Schejtman, San Miguel

Aversi Clinic, Tbilisi

LLC MediClub Georgia, Tbilisi

New Hospitals, Tbilisi

The First Medical Center, Tbilisi

National and Kapodistrian University of Athens - Eginition Hospital, Athens

The University of Tokyo Hospital, Bunkyō City

Santaros University Clinic, Vilnius

Amsterdam UMC Research BV, Amsterdam

USK-WAM Centralny Szpital Weteranow - Szpital Kniniczny ul. Zeromskiego 113 - Rheumatology, Lodz

Centrum Wsparcia Badan Klinicznych Pomorskiego Uniwersytetu Medycznego w Szczecinie (CWBK PUM) - Rheumatology, Szczecin

Centro Hospitalar do Porto - Hospital Santo Antonio, Porto

Seoul National University Hospital, Seoul

The Royal Free Hospital, London

Northern Care Allicance NHS Foundation Trust - Salford Royal - Rheumatology, Salford