Abstracts Archive - Page 30 of 2616 - ACR Meeting Abstracts

Abstract Number: 0238 • ACR Convergence 2025
Real-World Effectiveness of Mepolizumab on Gastrointestinal Involvement in Eosinophilic Granulomatosis with Polyangiitis and Hypereosinophilic Syndrome: A Multicenter Retrospective Study
Alessia Gatti¹, Francesca Regola¹, Giulia Fontana², Jacopo Mora², Mario Andrea Piga³, Gianluca Moroncini³, Rossella Acquaviva⁴, Palma Carlucci⁴, Silvia Noviello⁴, Angelo Vacca⁴, Paolo Delvino⁵, Enrico Heffler⁶, Emanuele Nappi⁶, Jakub Moll⁷, Jan Schroeder⁷, Laura Losappio⁷, Federica Davanzo⁸, Roberto Padoan⁹, Paolo Cameli¹⁰, Edoardo Conticini¹¹, Greta Pacini¹², Alvise Berti¹², Lorenzo Vrola¹³, Paola Tomietto¹³, Benedetta Fazzi¹⁴, elena treppo¹⁵, Luca Quartuccio¹⁴, Jan Willem Cohen Tervaert¹⁶, Sabrina Arnold¹⁷, Prof. Dr. med. Peter Lamprecht¹⁸, Florence Roufosse¹⁹, Ilaria Cavazzana¹, Franco Franceschini²⁰, Giacomo Emmi²¹ and Paola Toniati²², ¹Rheumatology and Clinical Immunology Unit – ERN ReCONNET, ASST Spedali Civili of Brescia and University of Brescia, Brescia, Italy, ²Rheumatology and Clinical Immunology Unit – ERN ReCONNET, ASST Spedali Civili and University of Brescia, Brescia, Lombardia, Italy, ³Università Politecnica delle Marche and Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy, ⁴Section of Internal Medicine 'Guido Baccelli', Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari 'Aldo Moro', Bari, Italy, ⁵Rheumatology Unit, IRCCS San Gerardo dei Tintori, Monza, Italy, ⁶Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (MI) and Personalized Medicine, Asthma and Allergy, IRCCS Humanitas Research Hospital, Milano, Italy, ⁷Division of Allergy and Clinical Immunology, ASST GOM Niguarda, Milano, Italy, ⁸Rheumatology Unit, Department of Medicine DIMED, University of Padua, Padova, Italy, ⁹Rheumatology Unit, Department of Medicine DIMED, University of Padua, Padua, Italy, ¹⁰University of Siena, Siena, Italy, ¹¹Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy, Siena, Italy, ¹²Santa Chiara Hospital and University of Trento, Unit of Rheumatology, Trento, Italy, ¹³UCO Medicina Clinica, ASUGI, Cattinara Teaching Hospital, Trieste, Italy, ¹⁴Division of Rheumatology, Department of Medicine (DMED), University of Udine, Udine, Italy, ¹⁵Division of Rheumatology, Department of Medicine, University of Udine, Udine, Italy, ¹⁶University of Alberta, Edmonton, AB, Canada, ¹⁷Department of Rheumatology and Clinical Immunology, University of Lübeck, Lubeck, Germany, ¹⁸University of Lübeck, Lübeck, Germany, ¹⁹Department of Internal Medicine, Hôpital Universitaire de Bruxelles - Erasme, Université Libre de Bruxelles, Bruxelles, Belgium, ²⁰University of Brescia, Brescia, Brescia, Italy, ²¹Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy, ²²Rheumatology and Clinical Immunology Unit – ERN ReCONNET, ASST Spedali Civili of Brescia, Brescia, Lombardia, Italy
Background/Purpose: Eosinophilic gastrointestinal disorders (EGIDs) are a group of disorders characterized by marked eosinophilic infiltration of the gastrointestinal (GI) tract resulting in organ dysfunction and…
Abstract Number: 0264 • ACR Convergence 2025
Seeing Beyond the Eye: Subclinical Audio-Vestibular Involvement in Vogt-Koyanagi-Harada Disease
Mohamed Tharwat Hegazy, Rania Yacoub, Sarah Sheta, Rana Hussein Amin and Noha Khalil, Faculty of Medicine, Cairo University, Cairo, Egypt
Background/Purpose: Vogt-Koyanagi-Harada disease (VKH) is a systemic disease that affects the central nervous system, ocular, and integumentary system. It causes bilateral granulomatous uveitis, dysacusia ranging…
Abstract Number: 0272 • ACR Convergence 2025
Ocular Involvement in Behçet’s Disease: Comparative Study of Two Classification Criteria in Clinical Practice
Rafael Gálvez Sánchez¹, José Luis Martín-Varillas², Lara Sánchez Bilbao³, Ivan Ferraz Amaro⁴, Elena Aurrecoechea⁵ and Ricardo Blanco³, ¹Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, ²Rheumatology Division, Hospital de Laredo. IDIVAL, Immunopathology Group. Santander, Spain., Laredo, Spain, ³Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain, Santander, Cantabria, Spain, ⁴Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain, ⁵Hospital Sierrallana, CANTABRIA, Spain
Background/Purpose: Ocular involvement is a potential severe complication of Behçet’s Disease (BD). The traditional classification, by the International Study Group (ISG, 1990) requires the mandatory…
Abstract Number: 0279 • ACR Convergence 2025
Assessment of Baseline IgG4-RD Disease Characteristics and Impact Upon Safety and Efficacy of Inebilizumab: Results from the MITIGATE Study
Yoshiya Tanaka¹, Emma Culver², Arezou Khosroshahi³, Wen Zhang⁴, Kazuichi Okazaki⁵, Matthias Lohr⁶, nicolas schleinitz⁷, Xinxin Dong⁸, melissa rosen⁹, Sue Cheng⁸, Daniel Cimbora⁸ and John Stone¹⁰, ¹University of Occupational and Environmental Health, Japan, Kitakyushu, Japan, ²John Radcliffe Hospital; University of Oxford, Oxford, United Kingdom, ³Emory University, Atlanta, GA, ⁴Peking Union Medical College Hospital, Dong Cheng Qu, China (People's Republic), ⁵Kansai Medical University Kori Hospital, Osaka, Japan, ⁶Karolinska Institutet, Stockholm, Sweden, ⁷Aix Marseille university, AP-HM, Marseille, France, ⁸Amgen, Thousand Oaks, CA, ⁹Amgen Inc., Thousand Oaks, CA, ¹⁰Massachusetts General Hospital , Harvard Medical School, Concord, MA
Background/Purpose: IgG4-related disease (IgG4-RD) is a progressive, systemic, fibroinflammatory disease characterized by unpredictable and recurring flares, leading to organ damage and decreased quality of life.…
Abstract Number: 0287 • ACR Convergence 2025
Comprehensive Profiling of Neutrophil Subsets Reveals Functional Signatures Linked to Vasculopathic Features in Patients with Inflammatory Myopathies
Daniel Alberto Carrillo-Vázquez¹, Beatriz Alcalá-Carmona¹, Jennifer Tiaré Balderas Miranda², Yatzil Reyna Juárez³, María José Ostos Prado¹, Samuel Govea-Peláez¹, Nancy R Mejía Domínguez⁴, Guillermo Juárez Vega⁴, Karina Santana-De Anda¹, Jiram Torres-Ruiz⁵ and Diana Gómez-Martín⁶, ¹Instituto Nacional De Ciencias Médicas Y Nutrición Salvador Zubirán, Mexico City, Distrito Federal, Mexico, ²Universidad Nacional Autónoma de México, Coyoacán, Federal District, Mexico, ³Instituto Politècnico Nacional, Tultitlán de Mariano Escobedo, Mexico State, Mexico, ⁴Universidad Nacional Autónoma de México, Mexico City, Distrito Federal, Mexico, ⁵INCMNSZ, Ciudad de México, Mexico, ⁶INCMNSZ, Mexico city, Federal District, Mexico
Background/Purpose: Vasculopathic manifestations of idiopathic inflammatory myopathies (IIM) such as interstitial lung disease (ILD), calcinosis, skin ulcers, mechanic’s hands, are characterized by immune-mediated vascular damage.…
Abstract Number: 0296 • ACR Convergence 2025
Aggregation of HARS1 and internalized antibodies in muscle biopsies of patients with antisynthetase syndrome and anti-Jo1(HARS) autoantibodies
maria Casal-Dominguez¹, Iago Pinal Fernandez², Katherine Pak², Travis Kinder¹, Jon Musai¹, Ana Matas-Garcia³, Gloria Garrabou⁴, Iban aldecoa⁵, Albert Selva-O´callaghan⁶, José Milisenda⁷ and Andrew Mammen⁸, ¹National Institutes of Health, Bethesda, MD, ²National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ³Muscle Research Unit, Internal Medicine Service, Hospital Clinic, Barcelona, Spain., Barcelona, Spain, ⁴Muscle Research Unit, Internal Medicine Service, Hospital Clinic, Barcelona, Spain., Barcelona, ⁵Pathology, Neurological Tissue Bank. Hospital Clinic of Barcelona-CDB-IDIBAPS/FCRB-University of Barcelona, Barcelona, Spain., Barcelona, ⁶Systemic Autoimmune Disease Section, Vall d'Hebron Institute of Research, Barcelona, Spain, Barcelona, ⁷Hospital Clinic de Barcelona, Barcelona, Spain, ⁸NIH, Bethesda, MD
Background/Purpose: Autoimmune inflammatory myopathies (IMs) comprise a diverse group of diseases that primarily affect the muscles and often involve the lungs, skin, and joints. Among…
Abstract Number: 0223 • ACR Convergence 2025
Timely Dermatologic Diagnosis and Management Changes in Systemic Collagen Vascular Diseases: Experiences from the Rheumatology-Dermatology Combined Clinic
Gopisree Peringeth¹, Benedict Wu¹, Shudan Wang², Beth McLellan³, Clement Tagoe⁴ and Jeanie Lee¹, ¹Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, ²Montefiore Medical Center, Bronx, NY, ³Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, ⁴Albert Einstein College of Medicine, FRESH MEADOWS, NY
Background/Purpose: Collagen vascular diseases (CVD) often present with skin manifestations, but it is not always clear whether these changes are directly related to the underlying…
Abstract Number: 0311 • ACR Convergence 2025
Time series analysis of continuous accelerometry data to determine the impact of symptomatic multiple joint osteoarthritis (MJOA) in the naturally occurring canine model
Elizabeth Kawecki-Wright¹, Liubov Arbeeva², Christina Stevens¹, Masataka Enomoto¹, Amanda Nelson³, Margaret Gruen¹ and Duncan Lascelles¹, ¹North Carolina State University, RALEIGH, NC, ²University of North Carolina, Chapel Hill, Carrboro, NC, ³University of North Carolina at Chapel Hill, Chapel Hill, NC
Background/Purpose: Pet dogs are a promising translational model for naturally occurring multiple joint osteoarthritis (MJOA). We characterized the impact of symptomatic (sx) MJOA, over the…
Abstract Number: 0301 • ACR Convergence 2025
Novel HMGCS1 Deficiency Expands Proinflammatory Monocytes and Cytotoxic Populations with Increased Cytokine Release
Sabrina Helmold Hait¹, Mary Maclean², Cindy Phung³, Gustaf wigerblad⁴, Iago Pinal Fernandez⁴, Carl Esperanzate⁵, hongying Wang⁵, Andrew Mammen⁶, willian Gahl⁵, Daniel L. Kastner⁷, Stefania Dell'orso⁴, Danica Novacic⁵, massimo Gadina⁴ and Ivona Aksentijevich⁸, ¹NIAMS/NIH, Bethesda, MD, ²NIH-NIAMS, Rockville, MD, ³National Institute of Arthritis, Musculoskeletal, and Skin Diseases (NIAMS), Bethesda, MD, ⁴National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, ⁵National Human Genome research Institute (NHGRI), National Institutes of Health (NIH), Bethesda, MD, ⁶NIH, Bethesda, MD, ⁷National Human Genome research Institute (NHGRI), National Institutes of Health (NIH), Bethesda, ⁸¹⁰⁰, Bethesda, MD
Background/Purpose: The mevalonate (MVK) pathway synthesizes isoprenoids that mediate post-translational protein modifications via prenylation. Deficient protein prenylation due to decreased mevalonate kinase (MK) activity leads…
Abstract Number: 0327 • ACR Convergence 2025
Structural Severity Assessment of Hand Osteoarthritis Using Radiomic Analysis: Correlation with the Kellgren-Lawrence Score – Results from the DIGICOD Cohort
Laetitia Perronne¹, SELLAM JEREMIE², Antoine Decoux³, Loïc Duron⁴, Constance de Margerie⁵, Maxime Dougados⁶, Simo Saarakala⁷, Emmanuel Maheu⁸, Michel Crema⁸, Anne Miquel⁸, Francis BERENBAUM⁹, Armelle Arnoux³, Jean Denis Laredo¹⁰ and Laure Fournier³, ¹Northwestern University, Chicago, IL, ²Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, F-⁷⁵⁰¹² Paris, France, /Rheumatology Department, AP-HP Saint-Antoine Hospital, ¹⁸⁴, rue du Faubourg Saint-Antoine, ⁷⁵⁰¹², Paris, France., Paris, France, ³Université paris Cité, Paris, France, ⁴Hôpital Fondation Adolphe de Rothschild, Paris, France, ⁵Hôpital Saint Louis, Paris, France, ⁶Department of Medicine, Hopital Cochin, Universite de Paris, Paris, France, ⁷University of Oulu, Oulu, Finland, ⁸Hôpital Saint Antoine, Paris, France, ⁹Sorbonne University/Inserm/AP-HP/⁴Moving Biotech, Paris, France, ¹⁰Hôpital Lariboisière, Paris, France
Background/Purpose: Radiomics involves the high-throughput extraction of quantitative data from medical imaging. This study aimed to develop a radiomic analysis pipeline applied to hand radiographs…
Abstract Number: 0335 • ACR Convergence 2025
Discontinuation and Non-Publication of Osteoarthritis Clinical Studies: A Cross-Sectional Analysis of 10,686,413 Patients
Mohamed Abdelsalam¹, Hadeer Hafez², Maryam Lasheen³, Bassant Elaraby Elsayed Badwy⁴, Omar Sameh Nabil El Sedafy¹, Abdelrahman M Hafez⁵, Omnia Samy El-Sayed⁴, Menat Alla Ayman Ali Mahdy⁴, Ali Tarek Hassanin³, Mohamed Reda Awad⁶ and Mohammed Safwat Kamal Hamza⁷, ¹Misr University For Science and Technology, ⁶ october, Al Jizah, Egypt, ²⁶th October University, ⁶ october, Al Jizah, Egypt, ³Misr University For Science and Technology, Helwan, Al Qahirah, Egypt, ⁴Misr University For Science and Technology, Nasr City, Al Qahirah, Egypt, ⁵Faculty of medecine, Damietta university, Mansoura, Ad Daqahliyah, Egypt, ⁶Al Azhar University, Cairo, Egypt, Giza, Al Jizah, Egypt, ⁷Faculty of Medicine, Misr University for Science and Technology, ⁶ october, Al Jizah, Egypt
Background/Purpose: Osteoarthritis (OA) is rising at an alarming rate, affecting millions worldwide and threatening mobility, independence, and quality of life. High-quality evidence is essential to…
Abstract Number: 0342 • ACR Convergence 2025
Comparison of Cortical Backscatter Ultrasound, Reference-Point Indentation and Bone Mineral Density in Discriminating Prevalent Fragility Fractures in Inflammatory Rheumatic Diseases: A Pilot Study
Edgar Wiebe¹, Benjamin Kuntz², Angela Galindo Santos³, Zhivana Boyadzhieva³, Sandra Hermann¹, Burkhard Muche², Andriko Palmowski², Gerhard Krönke⁴, Ralf Schmidmaier⁵, Kay Raum³ and FRANK BUTTGEREIT⁶, ¹Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany, Berlin, Berlin, Germany, ²Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany, ³Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Berlin, Germany, ⁴Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany; Deutsches Rheuma-Forschungszentrum Berlin, Berlin, Germany, Berlin, Berlin, Germany, ⁵Klinikum der Universität München, Medizinische Klinik und Poliklinik IV, München, Bayern, Germany, ⁶Charité University Medicine Berlin, Berlin, Berlin, Germany
Background/Purpose: Patients with inflammatory rheumatic and musculoskeletal diseases (iRMDs) are at elevated risk for osteoporotic fragility fractures. Standard assessment via dual-energy X-ray absorptiometry (DXA) does…
Abstract Number: 0405 • ACR Convergence 2025
Juvenile Psoriatic Arthritis and Enthesitis-Related Arthritis: 4-Year Results From the JUNIPERA Extension Study
Hermine Brunner¹, Ivan Foeldvari², Gerd Horneff³, Antonio Mera Varela⁴, Angelo Ravelli⁵, Sharonjeet Kaur⁶, Swapnil Suhas Dahale⁷, Ruvie Martin⁸, Daniel Lovell¹, Alberto Martini⁹ and Nicolino Ruperto¹⁰, ¹Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ²Hamburger Zentrum fuer Kinder und Jugendrheumatologie, Rheumatology, Hamburg, Germany, ³Asklepios Klinik, Hamburg, Germany, ⁴Rheumatology Division. Hospital Clínico Universitario de Santiago and Instituto de Investigaciones Sanitarias (IDIS), School of Medicine, Santiago de Compostela, Spain, ⁵IRCCS Istituto Giannina Gaslini, Genoa, Italy, Genoa, Genoa, Italy, ⁶Novartis Pharma AG, Basel, Switzerland, ⁷IQVIA, Mumbai, India, ⁸Novartis Pharmaceuticals Corporation, East Hanover, NJ, ⁹Università di Genova, Genova, Italy, ¹⁰Université Milano Bicocca and Fondazione IRCSS S. Gerardo dei Tintori, Monza, Monza and Brianza, Italy
Background/Purpose: Secukinumab demonstrated efficacy and safety in patients with juvenile idiopathic arthritis (JIA), including enthesitis-related arthritis (ERA) and juvenile psoriatic arthritis (JPsA), for up to…
Abstract Number: 0270 • ACR Convergence 2025
Diagnostic Challenge of IgG4-related Disease: Comparison Between ACR/EULAR, Umehara, and Okazaki Criteria
Rafael Gálvez Sánchez¹, Ivan Ferraz Amaro², Fernando Lopez Gutierrez³, Javier Loricera⁴, Pablo Martínez Calabuig⁵, Jorge Juan Fragío Gil⁶, Roxana González Mazarí⁷, Cristina Hormigos Martín⁸, DALIFER FREITES⁹, Maria Rodríguez Laguna⁸, Patricia Moya Alvarado¹⁰, Marta López I Gómez¹¹, Hector Corominas Macia¹⁰, Maite Silva Díaz¹², Guillermo González Arribas¹², Angel García Aparicio¹³, Judit Font-Urgelles¹⁴, Ivette Casafont Solé¹⁵, Elisabet Castaneda¹⁶, Carolina Merino Argumánez¹⁷, Raquel Zas Vaamonde¹⁸, Juan Molina Collada¹⁹, Sergio Rodríguez Montero²⁰, Rafael Melero Gonzalez²¹, Eva Galíndez Agirregoikoa²², Andrea Hernández²³, Lucia Pantoja Zarza²⁴, Ignacio Braña Abascal²⁵, Vega Jovaní²⁶, Elia Valls Pascual²⁷, Natalia Mena Vázquez²⁸, ADELA MARIA GALLEGO FLORES²⁹, Noelia Cabaleiro Raña³⁰, Raúl Veroz González³¹, Mariano Andrés³², Santos Castañeda Sainz³³ and Ricardo Blanco³⁴, ¹Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, ²Hospital Universitario de Canarias, Santa Cruz de Tenerife, Spain, ³Hospital Universitario Marqués de Valdecilla, Immunopathology Group -IDIVAL, Reumatología, Santander, Santander, Spain, ⁴Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, ⁵Hospital General Universitario de Valencia, Spain/ Uversidad Catolica de Valencia San Vicente Martir, Valencia, Spain, Ontinyent, Spain, ⁶Hospital General Universitario, Valencia, Spain, ⁷Hospital General Universitario de Valencia, Reumatología, Valencia, Valencia, Spain, ⁸Hospital Clínico San Carlos, Reumatología, Madrid, Madrid, Spain, ⁹Rheumatology Service, San Carlos Clinical Hospital, Madrid, Madrid, Spain, ¹⁰Hospital de Sant Pau, Reumatología, Barcelona, Barcelona, Spain, ¹¹Hospital Universitario de Araba, Reumatología, Vitoria,, Vitoria, Spain, ¹²Complejo Hospitalario Universitario de A Coruña, Reumatología, A Coruña, Spain, ¹³Hospital Universitario de Toledo, Reumatología, Toledo, Toledo, Spain, ¹⁴Hospital Universitari Germans Trias i Pujol, Badalona, Spain, ¹⁵Hospital German Trias i Pujol, Reumatología, Badalona, Badalona, Spain, ¹⁶Hospital Universitario Infanta Sofía, Reumatología, Madrid, Madrid, Spain, ¹⁷Hospital Universitario Puerta del Hierro, Reumatología, Madrid, Madrid, Spain, ¹⁸Hospital Universitario ¹² de Octubre, Reumatología, Madrid, Madrid, Spain, ¹⁹Hospital General Universitario Gregorio Marañón, Reumatología, Madrid, Madrid, Spain, ²⁰Hospital Universitario de Valme, Reumatología, Sevilla, Sevilla, Spain, ²¹Hospital Alvaro Cunqueiro, Reumatología, Vigo, Vigo, Spain, ²²BASURTO UNIVERSITY HOSPITAL, BILBAO, Spain, ²³Hospital Universitario de Gran Canaria Dr Negrin, Reumatología, Palmas de Gran Canaria, Gran Canaria, Spain, ²⁴Hospital General de Segovia, Reumatología, Segovia, Segovia, Spain, ²⁵Hospital Universitario Central de Asturias, Reumatología, Oviedo, Oviedo, Spain, ²⁶Hospital General Universitario de Alicante, Reumatología, Alicante, Alicante, Comunidad Valenciana, Spain, ²⁷Hospital General de Valencia, Reumatología, Valencia, Valencia, Spain, ²⁸Hospital Regional Universitario de Málaga, Reumatología, Málaga, Malaga, Spain, ²⁹Complejo Hospitalario don Benito Villanueva, Reumatología, Badajoz, Badajoz, Extremadura, Spain, ³⁰Hospital Universitario Montecelo, Reumatología, Pontevedra, Pontevedra, Spain, ³¹Hospital de Mérida, Reumatología, Mérida, Mérida, Spain, ³²Hospital General Universitario de Alicante, Reumatología, Alicante, Alicante, Spain, ³³Hospital Universitario La Princesa, Reumatología, Madrid Grupo de cooperación nacional de enfermedad relacionada con IgG⁴: Blanca García Magallón (Hospital Universitario Puerta del Hierro), Maite Odriozola Gil (Hospital Universitario de Valme), Cristina Arciniega (Hospital de Mérida), Maria Lourdes Mateo Soria (Hospital German Trias i Pujol), Santiago Muñoz (Hospital Universitario Infanta Sofía), Iñigo Jesús Rua Figueroa, (Hospital Universitario de Gran Canaria Dr Negrin), Sabela Fernández Aguado, (Hospital de Montecelo)., Madrid, Spain, ³⁴Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain, Santander, Cantabria, Spain
Background/Purpose: IgG4-related disease (IgG4-RD) is a rare immune-mediated condition characterized by fibro-sclerosing inflammation, elevated serum and tissue IgG4 levels, and heterogeneous clinical manifestations. Several classification…
Abstract Number: 0399 • ACR Convergence 2025
External Validation of Claims-based Algorithms for Newly Diagnosed Juvenile Idiopathic Arthritis
Daniel Horton¹, Lauren Parlett², Yuyang Zhu³, Sanika Rege⁴, Patricia Hoffman⁵, Daniel Reiff⁶, Sarah McGuire⁷, Sonia Pothraj⁸, Cynthia Salvant⁹, Lakshmi Moorthy¹, Cecilia Huang⁴, Dawn Koffman⁴, Matthew Iozzio³, Alicia Iizuka⁴, Kevin Schott², Stephen Crystal¹⁰, Amy Davidow¹¹, Tobias Gerhard⁴, Kevin Haynes¹², Brian Strom¹³, Daniel Beachler² and Carlos Rose¹⁴, ¹Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, ²Carelon Research, Inc, Wilmington, DE, ³Rutgers Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, NJ, USA, New Brunswick, ⁴Rutgers Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, NJ, USA, New Brunswick, NJ, ⁵Hospital for Special Surgery, New York, NY, ⁶Boys Town National Research Hospital, Boys Town, ⁷Department of Obstetrics and Gynecology, Cooper Medical School, Camden, Camden, NJ, ⁸Washingtonville Pediatrics, Washingtonville, NY, ⁹Albany Medical Center, Albany, NY, ¹⁰Rutgers Center for Health Services Research, Institute for Health, Health Care Policy and Aging Research, New Brunswick, NJ, ¹¹New Jersey Medical School, Newark, NJ, ¹²Janssen Research & Development, Titusville, NJ, ¹³Rutgers Biomedical and Health Sciences, New Brunswick, ¹⁴Thomas Jefferson University, Wilmington, DE
Background/Purpose: Administrative claims databases enable research in large populations with JIA. We previously showed that machine learning (ML)-based algorithms accurately identify new JIA diagnoses within…

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