Abstracts tagged "Microscopic Polyangiitis"

Abstract Number: 0718 • ACR Convergence 2025
Incidence of Venous Thromboembolism in Patients with ANCA-Associated Vasculitides – a Nationwide Registry-Based Study from Sweden
Hanna Lindberg¹, Klytaimnistra Voudouri¹, Lars Lindhagen¹, Maria K Svensson², Ann Knight¹ and Johanna Dahlqvist³, ¹Uppsala University, Uppsala, Sweden, ²Uppsala University, Uppsala, ³Uppsala University Hospital, Uppsala, Sweden
Background/Purpose: Antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitides (AAV) are rare yet severe autoimmune diseases. Previous studies have indicated that patients with AAV have an increased risk…
Abstract Number: 0728 • ACR Convergence 2025
Incidence and Clinical Characteristics of ANCA-Associated Vasculitis: A Nationwide Study in Spain
Susana Romero-Yuste¹, Marta Domínguez-Álvaro², Antonio Fernández-Nebro³, Miquel Blasco⁴, Beatriz Ventosa⁵, Javier Narváez⁶, Gema Fernández⁷, Iñigo Rúa-Figueroa⁸, Desirée Luis-Rodríguez⁹ and Manuel Macía¹⁰, ¹University Hospital Complex of Pontevedra, Pontevedra, Spain, ²Sociedad Española de Reumatología, Madrid, Spain, ³Hospital Regional Universitario de Malaga, Malaga, Spain, Malaga, Spain, ⁴Hospital clinic Barcelona, Barcelona Spain, Spain, ⁵Spanish Society of Rheumatology, Madrid, Spain, ⁶Hospital Universitario de Bellvitge, Barcelona, Spain, ⁷Hospital la Paz, Madrid, Madrid, Spain, ⁸Hospital de Gran Canaria Doctor Negrin, Las Palmas GC, Spain, ⁹Hospital Universitario Nuestra Señora de Candelaria, Tenerife, Spain, ¹⁰Hospital Universitario Nuestra Señora de Candelaria,, Tenerife, Spain
Background/Purpose: ANCA-associated vasculitides (AAV)—granulomatosis with polyangiitis (GPA), eosinophilic granulomatosis with polyangiitis (EGPA), and microscopic polyangiitis (MPA)are rare but severe systemic vasculitides with significant morbidity and…
Abstract Number: 1764 • ACR Convergence 2025
Development and Validation of a Simulation Model for Induction of Remission in Antineutrophil Cytoplasmic Antibody-Associated Vasculitis
Naomi Patel¹, Aaron Wu², Eli Miloslavsky³, Peter Merkel⁴, John Stone⁵, Hyon K. Choi⁶, Zachary Wallace³ and Emily Hyle², ¹Massachusetts General Hospital, Boston, MA, ²Massachusetts General Hospital, Boston, ³Massachusetts General Hospital, Newton, MA, ⁴University of Pennsylvania, Philadelphia, PA, ⁵Massachusetts General Hospital , Harvard Medical School, Concord, MA, ⁶MASSACHUSETTS GENERAL HOSPITAL, Lexington, MA
Background/Purpose: Evaluating the effectiveness and safety profile of treatment strategies for the induction of remission of individuals with newly diagnosed AAV is important for guiding…
Abstract Number: 1609 • ACR Convergence 2025
A Multicenter Prospective Longitudinal Observational Study To Determine Safety Of Extended Treatment With Rituximab In Maintaining Remission In Patients With ANCA Associated Vasculitis (AAV) – An Interim Analysis
Ravi Kumar U¹, Anoop Chitrabhanu², Ramya Janardana³, Avinash Jain⁴, Nitty Mathews⁵, Rutvi Dave⁵, Prabhu Vasantha Kumar⁶, ashish mathew⁵, john mathew⁵, Prasanna Samuel⁵, Arul Rajamurugan², Vineeta Shobha³ and ruchika goel⁵, ¹Christian Medical college, Vellore, India, Bengaluru, Karnataka, India, ²Madras Medical College, Chennai, India, Chennai, Tamil Nadu, India, ³St. John’s Medical College, Bengaluru , India, Bangalore, Karnataka, India, ⁴SMS Medical College and Hospital, Jaipur, India, JAIPUR, Rajasthan, India, ⁵Christian Medical college , Vellore , India, Vellore, Tamil Nadu, India, ⁶Christian Medical College, Vellore, Tamil Nadu, India, Vellore, Tamil Nadu, India
Background/Purpose: Rituximab (RTX) has been shown to achieve high remission-induction and sustained maintenance rates across multiple studies and clinical trials in patients with AAV. The…
Abstract Number: 1606 • ACR Convergence 2025
One Year Real-World Effectiveness with Avacopan in Granulomatosis with Polyangiitis and Microscopic Polyangiitis in a Large Healthcare System
Naomi Patel¹, Andrew King², Madison Negron³, Zachary Williams⁴, Ana Fernandes¹, Nora Shepherd², Colebrooke Johnson¹, Guy Katz¹, Belen Arevalo Molina¹, Elizabeth Ibiloye⁵, Sam Oh⁶, Zachary Wallace⁷ and Sebastian H Unizony⁸, ¹Massachusetts General Hospital, Boston, MA, ²Massachusetts General Hospital, Boston, ³Harvard Extension School, Medford, MA, ⁴Massachusetts General Hospital, Nancy, KY, ⁵Amgen Inc, Thousand Oaks, CA, ⁶Amgen Inc, South San Francisco, CA, ⁷Massachusetts General Hospital, Newton, MA, ⁸Massachusetts General Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Avacopan has been approved for adjunctive use in adults with severe active granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA) in the US. Here…
Abstract Number: 0721 • ACR Convergence 2025
Pulmonary Manifestations of Granulomatosis with Polyangiitis and Microscopic Polyangiitis
Mats Junek¹, Sara Choi², Stephanie Garner³, Saara Rawn⁴, David Cuthbertson⁵, Curry Koening⁶, Carol Langford⁷, Carol McAlear⁸, Paul Monach⁹, Larry Moreland¹⁰, Christian Pagnoux¹¹, Philip Seo¹², Ulrich Specks¹³, Kenneth Warrington¹³, Gerard Cox¹, Nader Khalidi¹⁴ and Peter Merkel⁸, ¹St Joseph's Healthcare Hamilton, Hamilton, ON, Canada, ²Queen's University, Kingston, ON, Canada, ³University of Calgary, Calgary, AB, Canada, ⁴NOSM School of Medicine, Sudbury, ON, Canada, ⁵University of South Florida, Tampa, ⁶University of Texas Dell Medical School, Austin, TX, ⁷Cleveland Clinic, Moreland Hills, OH, ⁸University of Pennsylvania, Philadelphia, PA, ⁹VA Boston Healthcare System, Boston, MA, ¹⁰University of Colorado, Denver, CO, ¹¹Mount Sinai Hospital, Toronto, ON, Canada, ¹²Johns Hopkins University, Baltimore, MD, ¹³Mayo Clinic, Rochester, MN, ¹⁴McMaster University, Hamilton, ON, Canada
Background/Purpose: There is limited knowledge of the epidemiology and complications of pulmonary manifestations in ANCA-associated vasculitis (AAV). This analysis focused describing the range of pulmonary…
Abstract Number: 0697 • ACR Convergence 2024
Association of ANCA-Associated Vasculitis and Development of SSc and SSc-Associated Antibodies: Impact of Pulmonary Arterial Hypertension
Brett Dinner¹, Ahmed Abdelmaksoud², Ann Igoe³, Taylor Viggiano⁴ and Vivek Nagaraja⁵, ¹Creighton University, Paradise Valley, AZ, ²University of California, Riverside, Riverside, CA, ³Flow, Tempe, AZ, ⁴Mayo Clinic, Phoenix, ⁵Mayo Clinic Arizona, Scottsdale, AZ
Background/Purpose: Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a spectrum of autoimmune disorders characterized by necrotizing small-to-medium vessel inflammation and circulating ANCAs. Represented by granulomatosis…
Abstract Number: 0698 • ACR Convergence 2024
Association of Systemic Sclerosis with ANCA-Associated Vasculitis and Large Vessel Vasculitis: Impact of Pulmonary Arterial Hypertension
Brett Dinner¹, Ahmed Abdelmaksoud², Ann Igoe³, Taylor Viggiano⁴ and Vivek Nagaraja⁵, ¹Creighton University, Paradise Valley, AZ, ²University of California, Riverside, Riverside, CA, ³Flow, Tempe, AZ, ⁴Mayo Clinic, Phoenix, ⁵Mayo Clinic Arizona, Scottsdale, AZ
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disorder with excessive fibrosis and vasculopathy. While typically non-inflammatory, frank vasculitis can complicate SSc. Concomitant SSc with ANCA-associated…
Abstract Number: 1608 • ACR Convergence 2024
Interstitial Lung Disease in ANCA-associated Vasculitis: A Retrospective Study of Clinical Characteristics, Radiographic Features, and Outcomes
Janelle Castellino¹, Matas Orentas², Joshua Moran³, Joshlean Fair¹, Yanyu Zhang⁴ and Aleksandra Bukiej⁵, ¹Rush University Medical Center, Chicago, IL, ²RUMC, Chicago, IL, ³Rush University Medical Center - IM Residency, Chicago, IL, ⁴Rush University Medical Center, Chicago, ⁵Rush University Medical Center, River Forest, IL
Background/Purpose: Interstitial lung disease (ILD) is a significant manifestation of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV), including granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), and…
Abstract Number: 2181 • ACR Convergence 2024
Large Pediatric Cohort with ANCA-associated Vasculitis at a Single Institution: Patient Characteristics, Clinical Course, and Outcomes
Jessica Bloom¹, Anna Monley², Sarah Reingold³, Robert Fuhlbrigge¹ and Peter Merkel⁴, ¹University of Colorado, Denver, CO, ²University of Colorado, Aurora, CO, ³Denver Health, Denver, CO, ⁴University of Pennsylvania, Philadelphia, PA
Background/Purpose: Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is an understudied, chronic inflammatory disease in children with significant morbidity and mortality. There are few large pediatric cohorts…
Abstract Number: 2478 • ACR Convergence 2024
Avacopan versus a Prednisone Taper in Patients with ANCA-Associated Vasculitis Without Kidney Involvement in a Phase 3 Trial
Christian Pagnoux¹, Antoine Neel², Sarah Bray³, Rachel E. Gurlin⁴, Darcy Trimpe⁵, David Jayne⁶ and Peter Merkel⁷, and ADVOCATE Study Group, ¹Mount Sinai Hospital, Toronto, ON, Canada, ²Department of Internal Medicine, CHU Nantes, Nantes, France, ³Amgen Ltd, Cambridge, United Kingdom, ⁴Amgen Inc., Mountain View, CA, ⁵Amgen Inc., Thousand Oaks, CA, ⁶University of Cambridge, Cambridge, United Kingdom, ⁷University of Pennsylvania, Philadelphia, PA
Background/Purpose: Granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA) are subtypes of ANCA-associated vasculitis that frequently involve the kidneys. However, a subset of patients with…
Abstract Number: 2480 • ACR Convergence 2024
Avacopan versus a Prednisone Taper in Patients with ANCA-Associated Vasculitis and Ear, Nose, or Throat Involvement in a Phase 3 Trial
Robert Spiera¹, Robert Lebovics², Sarah Bray³, Rachel E. Gurlin⁴, David Jayne⁵ and Peter Merkel⁶, and ADVOCATE Study Group, ¹Scleroderma, Vasculitis, and Myositis Center, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, ²Hackensack Meridian University Health System, Hackensack, NJ, ³Amgen Ltd, Cambridge, United Kingdom, ⁴Amgen Inc., Mountain View, CA, ⁵University of Cambridge, Cambridge, United Kingdom, ⁶University of Pennsylvania, Philadelphia, PA
Background/Purpose: In the phase 3 ADVOCATE trial, 45.2% and 42.1% of patients in the avacopan and prednisone taper groups, respectively, had active ear, nose, or…
Abstract Number: 2486 • ACR Convergence 2024
Glucocorticoids May Mitigate the Risk of Avacopan-Induced Liver Dysfunction in ANCA-Associated Vasculitis: Data from a Multicenter Observational Study in Japan
Tomohisa Uchida¹, Shoichi Fukui¹, Naoki Iwamoto¹, Ayaka Umetsu², Momoko Okamoto², Keita Fujikawa², Akinari Mizokami², Takuya Tomokawa³, Kazusato Hara³, Yoshiro Horai³ and Atsushi Kawakami⁴, ¹Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan, ²Department of Rheumatology, Japan Community Healthcare Organization (JCHO) Isahaya General Hospital, Isahaya, Japan, ³Department of Rheumatology, Sasebo City General Hospital, Sasebo, Japan, ⁴Nagasaki University, Nagasaki, Japan
Background/Purpose: Avacopan, a C5a receptor inhibitor, has emerged as a novel treatment for ANCA-associated vasculitis (AAV), providing an alternative to glucocorticoids1. Despite its promising potential,…
Abstract Number: 2488 • ACR Convergence 2024
Patient Characteristics and Treatment Patterns Before and After Initiation of Avacopan in the United States: An Early View Based on a Claims Database Analysis
Sushmitha Inguva¹, Pallavi Rane¹, Darcy Trimpe¹, Sam Oh¹, Jasjit Multani², Hsiu-Ching Chang², Marie Yasuda², Chi-Chang Chen², Duvuru Geetha³, Peter Merkel⁴ and Zachary Wallace⁵, ¹Amgen Inc., Thousand Oaks, CA, ²IQVIA, Wayne, PA, ³Johns Hopkins University, Baltimore, MD, ⁴University of Pennsylvania, Philadelphia, PA, ⁵Massachusetts General Hospital, Newton, MA
Background/Purpose: The United States (US) Food and Drug Administration approved avacopan to treat adults with severe active granulomatosis with polyangiitis or microscopic polyangiitis in October…
Abstract Number: 2689 • ACR Convergence 2024
Characterization of Alpha-1 Antitrypsin Function in ANCA-Associated Vasculitis
Lynn Fussner¹, Ivan Bilic², Carol McAlear³, David Cuthbertson⁴, Jie Cheng⁵, Elise Chen⁵, Markus Weiller², Ulrich Specks⁶ and Peter Merkel³, and for the Vasculitis Clinical Research Consortium, ¹The Ohio State University, Columbus, OH, ²Takeda Pharmaceuticals, Vienna, Austria, ³University of Pennsylvania, Philadelphia, PA, ⁴University of South Florida, Tampa, FL, ⁵Takeda Pharmaceuticals, Cambridge, MA, ⁶Mayo Clinic, Rochester, MN
Background/Purpose: Two separate genome-wide association studies demonstrated that polymorphisms in SERPINA1, encoding serine protease inhibitor alpha-1 antitrypsin (A1AT), are associated with increased risk of developing…

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