Abstracts tagged "Granulomatosis with Polyangiitis (GPA)"

Abstract Number: 1598 • ACR Convergence 2025
Use of JAK Inhibitors in Medium- and Small-Sized Vasculitides: a Retrospective Multicenter Study
caterina ricordi¹, elena treppo², Pavel Novikov³, Paul Russo⁴, Luca moroni⁵, Angelo Fassio⁶, Paolo Delvino⁷, hervé lobbes⁸, Chiara Marvisi¹, Francesco Muratore¹, Xavier Puéchal⁹, Carlo Salvarani¹ and Benjamin Terrier¹⁰, ¹Unit of Rheumatology, Azienda USL - IRCCS di Reggio Emilia, and University of Modena and Reggio Emilia, Reggio Emilia, Italy, ²Division of Rheumatology, Department of Medicine, University of Udine, Udine, Italy, ³Sechenov University, Moscow, Russia, ⁴Royal Adelaide Hospital, Clinical Immunology and Allergy, Adelaide, Australia, ⁵IRCCS San Raffaele, Unit of Immunology, Rheumatology, Allergy and Rare Diseases (UnIRAR), Milan, Italy, ⁶University of Verona, Department of Medicine, Unit of Rheumatology, Verona, Italy, ⁷University of Milano-Bicocca, Monza, Monza and Brianza, Italy, ⁸Department of Internal Medicine, Hôpital Estaing, Centre Hospitalier Universitaire de Clermont-Ferrand, Clermont-Ferrand, France, ⁹Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, and Université Paris Cité, Paris ( ⁷⁵⁰¹⁴ ), Ile-de-France, France, ¹⁰Cochin Hospital, Paris, France
Background/Purpose: Medium- and small-vessel vasculitides (MVV and SVV) are a heterogeneous group of inflammatory diseases affecting the vascular wall. Current treatment strategies are based on…
Abstract Number: 1596 • ACR Convergence 2025
GPA-Associated Tracheobronchial Stenosis: Immunosuppressant Use and Dilation Frequency
Brendan Denvir¹, Alexander Hillel², Ami Shah³, Ji Soo Kim¹, Philip Seo² and Brendan Antiochos⁴, ¹Johns Hopkins, Baltimore, MD, ²Johns Hopkins University, Baltimore, MD, ³Johns Hopkins Rheumatology, Baltimore, MD, ⁴Johns Hopkins, CLARKSVILLE, MD
Background/Purpose: Granulomatosis with polyangiitis (GPA) is an anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis that affects all levels of the respiratory tract. Tracheobronchial stenosis (TBS) occurs in…
Abstract Number: 1595 • ACR Convergence 2025
Subcordal Stenosis is a Glucocorticoid-Responsive Manifestation of Granulomatosis with Polyangiitis
Brendan Denvir¹, Brendan Antiochos², Philip Seo³ and Alexander Hillel³, ¹Johns Hopkins, Baltimore, MD, ²Johns Hopkins, CLARKSVILLE, MD, ³Johns Hopkins University, Baltimore, MD
Background/Purpose: Subglottic stenosis (SGS) is a recognized manifestation of granulomatosis with polyangiitis (GPA), occurring in 8–23% of patients. A distinct variant, identified in this study,…
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: 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: 0713 • ACR Convergence 2025
Differentiating Primary Anti-Neutrophil Cytoplasmic Antibody (ANCA) Associated Vasculitis from Secondary Forms
Adil Vural¹, Chao Zhang², Yaseen Kinanah¹, Cassandra Calabrese³ and Adam Brown⁴, ¹Cleveland Clinic, Cleveland, OH, ²Cleveland Clinic, Cleveland Heights, OH, ³Cleveland Clinic Foundation, Cleveland Heights, OH, ⁴Cleveland Clinic, Shaker Heights, OH
Background/Purpose: ANCA associated vasculitis (AAV) is a severe autoimmune disorder with substantial morbidity and mortality. Establishing the diagnosis might be challenging due to the existence…
Abstract Number: 0726 • ACR Convergence 2025
Real-World Avacopan Use in Granulomatosis with Polyangiitis and Microscopic Polyangiitis: Insights from United States Claims Data on Outcomes and Adherence
Sebastian E Sattui¹, Elizabeth Ibiloye², Niranjan Kathe³, Sam Oh⁴, Virginia Noxon-Wood⁵, Iman Mohammadi⁵, Laura Moore-Schiltz⁵ and Tingting Li⁶, ¹Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, ²Amgen Inc, Thousand Oaks, CA, ³Amgen Inc, San Diego, CA, ⁴Amgen Inc, South San Francisco, CA, ⁵Inovalon, Bowie, MD, ⁶Washington University School of Medicine, St. Louis
Background/Purpose: Granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA) are the most common types of anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV). Treatment-related toxicities, particularly from glucocorticoid…
Abstract Number: 1766 • ACR Convergence 2025
Clinical Impact of Incomplete B-cell Depletion in ANCA-Associated Vasculitis Patients Receiving Maintenance Rituximab Therapy: a Retrospective Study
caterina ricordi¹, Maxime Beydon², Johanne Liberatore³, Pascal Cohen⁴, bertrand Dunogue⁵, Camille Mettler⁶, Benjamin Torreau⁷, Luc Mouthon⁵, Xavier Puéchal⁸ and Benjamin Terrier⁹, ¹Unit of Rheumatology, Azienda USL - IRCCS di Reggio Emilia, and University of Modena and Reggio Emilia, Reggio Emilia, Italy, ²Sorbonne University, INSERM, Institut Pierre Louis of Epidemiology and Public Health, Equipe PEPITES, Pitié Salpêtrière Hospital, Service of Public Health, Centre of Pharmacoepidemiology (Cephepi), Paris, France, ³Department of Internal Medicine, Centre Hospitalier d’Angouleme, Angouleme, France, ⁴Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, Paris, France, ⁵Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Cochin University Hospital, Université Paris Cité, AP-HP, Paris, France, ⁶Department of Internal Medicine, Hôpital Bichat - Claude-Bernard, Paris, France, ⁷Internal Medicine and Immunology, CHU Tours, Tours, France, ⁸Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, and Université Paris Cité, Paris ( ⁷⁵⁰¹⁴ ), Ile-de-France, France, ⁹Cochin Hospital, Paris, France
Background/Purpose: Rituximab (RTX) is the standard of care for both induction and maintenance in ANCA-associated vasculitides (AAVs). While CD19 B-cell monitoring is used to evaluate…
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: 1607 • ACR Convergence 2025
Antibiotic Prophylaxis during Treatment of ANCA-associated Vasculitis with Rituximab: Data from a Multicenter Cohort
Natasha Le Blanc¹, Lillian Barra², Sasha Bernatsky³, Alison Clifford⁴, Mojtaba Dabaghjamanesh⁵, Natasha Dehghan⁶, Aurore Fifi-Mah⁷, Jean-Paul Makhzoum⁸, Nataliya Milman⁹, Medha Soowamber¹⁰, Nader Khalidi¹¹, Christian Pagnoux¹⁰, Rosalie-Selene Meunier¹², Jan Willem Cohen Tervaert⁴, Elaine Yacyshyn⁴ and Arielle Mendel¹³, ¹McGill University, Montreal, Canada, ²Western University, London, ON, Canada, ³Research Institute of the McGill University Health Centre, Montreal, QC, Canada, ⁴University of Alberta, Edmonton, AB, Canada, ⁵Self employed, Richmond Hill, ON, Canada, ⁶University of British Columbia - Vancouver, Vancouver, BC, Canada, ⁷University of Calgary, Calgary, AB, Canada, ⁸Universite de Montreal, Montreal, Canada, ⁹the Ottawa Hospital, Ottawa, ON, Canada, ¹⁰Mount Sinai Hospital, Toronto, ON, Canada, ¹¹McMaster University, Hamilton, ON, Canada, ¹²Hopital du Sacre-Coeur-de-Montreal, Montreal, QC, Canada, ¹³McGill University Health Centre, Montréal, QC, Canada
Background/Purpose: Antibiotic prophylaxis is recommended during initial treatment of ANCA-associated vasculitis (AAV). We assessed characteristics associated with prophylaxis within a Canadian multicenter AAV cohort starting…
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: 0774 • ACR Convergence 2024
A Multicenter, Randomized, Controlled Trial to Evaluate the Effects of Low-dose Glucocorticoids Compared to Stopping Glucocorticoids to Maintain Remission of Granulomatosis with Polyangiitis: The TAPIR Trial
Peter Merkel¹, Christian Pagnoux², Nader Khalidi³, Ulrich Specks⁴, Curry Koening⁵, Carol Langford⁶, Larry Moreland⁷, Paul Monach⁸, Jason Springer⁹, Shubhasree Banerjee¹, Simon Carette¹⁰, Rennie Rhee¹, Medha Soowamber¹¹, Kenneth Warrington⁴, Renee Borchin¹², Cristina Burroughs¹³, Carol McAlear¹, David Cuthbertson¹³ and Jeffrey Krischer¹³, ¹University of Pennsylvania, Philadelphia, PA, ²Mount Sinai Hospital, Toronto, ON, Canada, ³McMaster University, Hamilton, ON, Canada, ⁴Mayo Clinic, Rochester, MN, ⁵University of Texas Dell Medical School, Austin, TX, ⁶Cleveland Clinic, Moreland Hills, OH, ⁷University of Colorado, Denver, CO, ⁸VA Boston Healthcare System, Boston, MA, ⁹Vanderbilt University Medical Center, Franklin, TN, ¹⁰Mount Sinai Hosptial, Toronto, ON, Canada, ¹¹University of Toronto, Toronto, ON, Canada, ¹²University of South Florida, Tampa, ¹³University of South Florida, Tampa, FL
Background/Purpose: Use of low-dose glucocorticoids to maintain remission in patients with granulomatosis with polyangiitis (GPA) remains controversial. Additionally, there is no consensus on how to…
Abstract Number: 0823 • ACR Convergence 2024
A Randomized, Double-Blind, Placebo-Controlled Trial of Abatacept for the Treatment of Relapsing, Non-Severe, Granulomatosis with Polyangiitis
Carol Langford¹, Nader Khalidi², Jason Springer³, Marcia Friedman⁴, Bernhard Hellmich⁵, Christian Pagnoux⁶, Natasha Dehghan⁷, Ora Singer⁸, Curry Koening⁹, Yih Chang Lin¹⁰, Paul Monach¹¹, Larry Moreland¹², Aurore Fifi-Mah¹³, Oliver Flossmann¹⁴, Lindsy Forbess¹⁵, Peter Lanyon¹⁶, Eamonn Molloy¹⁷, Ulrich Specks¹⁸, Robert Spiera¹⁹, Elaine Yacyshyn²⁰, Carol McAlear²¹, Cristina Burroughs¹⁰, Rachel Jones²², Rennie Rhee²¹, Rula A. Hajj-Ali²³, Kenneth Warrington¹⁸, David Cuthbertson¹⁰, Jeffrey Krischer¹⁰, David Jayne²² and Peter Merkel²¹, and the Vasculitis Clinical Research Consortium and the European Vasculitis Society, ¹Cleveland Clinic, Moreland Hills, OH, ²McMaster University, Hamilton, ON, Canada, ³Vanderbilt University Medical Center, Franklin, TN, ⁴Oregon Health and Science University, Portland, OR, ⁵Medius Kliniken, Kirchheim unter Teck, Germany, ⁶Mount Sinai Hospital, Toronto, ON, Canada, ⁷University of British Columbia - Vancouver, Vancouver, BC, Canada, ⁸University of Michigan, Huntington Woods, MI, ⁹University of Texas Dell Medical School, Austin, TX, ¹⁰University of South Florida, Tampa, FL, ¹¹VA Boston Healthcare System, Boston, MA, ¹²University of Colorado, Denver, CO, ¹³University of Calgary, Calgary, AB, Canada, ¹⁴Royal Berkshire Hospital, Reading, United Kingdom, ¹⁵Cedars-Sinai Medical Center, Los Angeles, CA, ¹⁶University of Nottingham, Nottingham, United Kingdom, ¹⁷St Vincent's University Hospital, Dublin, Ireland, ¹⁸Mayo Clinic, Rochester, MN, ¹⁹Scleroderma, Vasculitis, and Myositis Center, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY, ²⁰University of Alberta, Edmonton, AB, Canada, ²¹University of Pennsylvania, Philadelphia, PA, ²²University of Cambridge, Cambridge, United Kingdom, ²³Cleveland Clinic, Cleveland, OH
Background/Purpose: Granulomatosis with polyangiitis (GPA) is a small-vessel vasculitis associated with frequent relapses. Following encouraging results from an open-label study, a randomized, double-blind, placebo-controlled trial…
Abstract Number: 1592 • ACR Convergence 2024
Overlapping Forms of Eosinophilic Granulomatosis with Polyangiitis and Granulomatosis with Polyangiitis: Presentation, Management and Outcomes
Federica Pallotti¹, Camille Mettler², Roberto Padoan³, Francesca Regola⁴, Franco Franceschini⁵, Sergey Moiseev⁶, Pavel Novikov⁷, Mario Andrea Piga⁸, Gianluca Moroncini⁹, Silke Brix¹⁰, Abdul Hadi Kafagi¹¹, Samuel Deshayes¹², Achille Aouba¹², Julien Campagne¹³, Paolo Delvino¹⁴, Jan Willem Cohen Tervaert¹⁵, Luisa Brussino¹⁶, Martin Michaud¹⁷, Nils Venhoff¹⁸, Federico Alberici¹⁹, Claudia Iannone²⁰, Sophie Rosenstingl²¹, Marin Moutel²², Jean-Marc Galempoix²³, Vincent Cottin²⁴, Clara Jaccard²⁵, Diane Riehl²⁶, Paul Legendre²⁷, Anne-Claire Billet²⁸, Paola Parronchi²⁹, Luca Quartuccio³⁰, Vítor Silvestre Teixeira³¹, Allyson Egan³², David Jayne³², Enrico Tombetti³³, Marco Caminati³⁴, Christian Pagnoux³⁵, Alexis Régent³⁶, Marc Ruivard³⁷, Loïc Guillevin³⁸, Xavier Puéchal³⁶ and Benjamin Terrier³⁹, and the French Vasculities Study Group and European EGPA Study Group, ¹Internal Medicine, Centre Hospitalier Universitaire de Caen, Caen, France, ²Département de Médecine Interne, Centre de Référence National pour les maladies auto-immunes systémiques rares, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, France, ³Department of Medicine DIMED, Division of Rheumatology, University of Padua, Padua, Italy, ⁴Unit of Rheumatology and Clinical Immunology, ASST Spedali Civili Brescia and University of Brescia, Brescia, Italy, ⁵Scleroderma Unit, Rheumatology and Clinical Immunology Unit, ERN ReCONNET, ASST Spedali Civili, Brescia, Italy, Brescia, Italy, ⁶Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow, Russia, ⁷Sechenov First Moscow State Medical University, Moscow, Russia, ⁸Postgraduate School of Allergy and Clinical Immunology, Università Politecnica delle Marche, Ancona, Italy, ⁹Department of Clinical and Molecular Sciences, Marche Polytechnic University & Department of Internal Medicine, Marche University Hospital, Ancona, Italy, ¹⁰Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, The University of Manchester, Manchester, United Kingdom, ¹¹Division of Cardiovascular Sciences, School of Medical Sciences, University of Manchester, Manchester, United Kingdom, ¹²Service d'immunologie clinique-médecine interne, CHU de Caen Normandie, Caen, France, ¹³Hôpital Robert Schuman - Competence center for autoimmune diseases, Internal Medicine, Metz, France, ¹⁴University of Milano-Bicocca, Milan, Milan, Italy, ¹⁵University of Alberta, Edmonton, Canada, ¹⁶SSDDU Immunologia Clinica ed Allergologia, AO Mauriziano, Turin, Italy, ¹⁷Department of Internal Medicine, Clinique Saint-Exupery, Toulouse, France., Toulouse, France, ¹⁸Medical Center - University of Freiburg, Internal Medicine, Department of Rheumatology and Clinical Immunology, Freiburg, Germany, ¹⁹Nephrology Unit, ASST Spedali Civili di Brescia, Brescia, Italy, ²⁰Department of Rheumatology, University of Milan, and Rheumatology Department, ASST Pini-CTO, Milan, Italy, ²¹Service Médecine Interne, Centre hospitalier intercommunal Compiègne Noyon, Compiègne Noyon, France, ²²Department of Internal Medicine, Infectious Diseases, and Clinical Immunology, Reims University Hospital, Reims, France, ²³J.M. Galempoix, MD, Department of Internal Medicine, Nord Ardennes Hospital, Charleville-Mézières, France, ²⁴Hôpital Louis Pradel, Centre de Référence des Maladies Pulmonaires Rares, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, Lyon, France, Lyon, France, ²⁵Gaston Bourret Hospital, Nouméa, New Caledonia, ²⁶Centre hospitalier intercommunal Toulon- La Seyne Sur Mer, Toulon, France, ²⁷Service Médecine Interne et Polyvalente, Centre Hospitaliers Le Mans, Le Mans, France, ²⁸Department of Internal Medicine, Édouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France, ²⁹University of Florence, Florence, Florence, Italy, ³⁰Division of Rheumatology, Department of Medicine, University of Udine, Udine, Italy, ³¹Department of Rheumatology, Faro Hospital, Algarve, Portugal, ³²University of Cambridge, Cambridge, United Kingdom, ³³Internal Medicine and Rheumatology, Department of Biomedical and Clinical Sciences, Sacco and Fatebenefratelli Hospitals, Milan, Italy, Milan, Italy, ³⁴Department of Medicine, Asthma, Allergy and Clinical Immunology Section, University of Verona, Verona, Italy, ³⁵Mount Sinai Hospital, Toronto, ON, Canada, ³⁶National Referral Center For Rare Systemic Autoimmune Diseases, Paris, France, ³⁷Internal Medicine Department, Estaing University Hospital, CHU Clermont-Ferrand, Clermonnt-Ferrand, Italy, ³⁸National Referral Center For Rare Systemic Autoimmune Diseases, Paris, Ile-de-France, France, ³⁹Service de Médecine interne, Hôpital Cochin, AP-HP, Paris, Ile-de-France, France
Background/Purpose: ANCA-associated vasculitis (AAV) include granulomatosis with polyangiitis (GPA), microscopic polyangiitis, and eosinophilic granulomatosis with polyangiitis (EGPA). Although these entities are often easily distinguished in…

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