ACR Meeting Abstracts

ACR Meeting Abstracts

  • Meetings
    • ACR Convergence 2024
    • ACR Convergence 2023
    • 2023 ACR/ARP PRSYM
    • ACR Convergence 2022
    • ACR Convergence 2021
    • ACR Convergence 2020
    • 2020 ACR/ARP PRSYM
    • 2019 ACR/ARP Annual Meeting
    • 2018-2009 Meetings
    • Download Abstracts
  • Keyword Index
  • Advanced Search
  • Your Favorites
    • Favorites
    • Login
    • View and print all favorites
    • Clear all your favorites
  • ACR Meetings

Abstract Number: 1917

In Myositis Patients, Sjögren’s Syndrome Is Associated with Inclusion Body Myositis and with anti-cN1A Antibody Independently of the Myositis Subgroups

Dan Lévy1, Benoit Nespola2, Margherita Giannini3, Renaud Felten4, Francois Severac3, Coralie Varoquier3, Marina Rinagel3, Anne-Sophie Korganow5, Vincent Poindron5, Thierry Martin5, Julien Campagne6, Hassam Chereih7, Bastien Bouldoires8, Baptiste Hervier9, Cédric Lenormand3, Emmanuel Chatelus3, Laurent Arnaud10, Bernard Gény3, Jean Sibilia4, Jacques-Eric Gottenberg11 and Alain Meyer12, 1CHU Strasbourg, CH, 2Department of Immunobiology, Hôpitaux Universitaires de Strasbourg, Strasbourg, France, 3CHU Strasbourg, Strasbourg, 4Department of rheumatology, University Hospitals of Strasbourg and French National Reference Center for Rare Auto-immune diseases, Strasbourg, France, 5Department of Clinical Immunology and Internal Medicine, Hôpitaux Universitaires de Strasbourg, Strasbourg, France, 6Department of Internal Medicine, Hôpitaux Privés de Metz, Metz, France, 7CH Pontarlier, Pontarlier, 8HP Colmar, Colmar, 9APHP Paris, Paris, 10Department of rheumatology, University Hospitals of Strasbourg and French National Reference Center for Rare Auto-immune diseases, Strasbourg, Alsace, France, 11Strasbourg University Hospital, Strasbourg, France, 12Service de rhumatologie et Centre de références des maladies autoimmunes rares, Hôpitaux universitaires de Strasbourg, Strasbourg, Alsace, France

Meeting: ACR Convergence 2020

Keywords: Autoantibody(ies), autoimmune diseases, Myositis, Sjögren's Syndrome

  • Tweet
  • Click to email a link to a friend (Opens in new window) Email
  • Click to print (Opens in new window) Print
Session Information

Date: Monday, November 9, 2020

Title: Systemic Sclerosis & Related Disorders – Basic Science Poster

Session Type: Poster Session D

Session Time: 9:00AM-11:00AM

Background/Purpose: Myositis are characterized by weakness and muscle inflammation. They encompass heterogeneous conditions, which include dermatomyositis (DM), inclusion body myositis (IBM) and polymyositis (PM) according to the EULAR/ACR 2017 criteria. We recently recorded a high prevalence of IBM in a cohort of primary Sjögren’s syndrome (SS). Our objective was to refine the signification of SS in the setting of myositis.

Methods: Among a monocentric myositis cohort (according to the EULAR/ACR 2017 criteria), SS patients (according to the ACR/EULAR 2016 criteria) were identified (myositis/SS+ group) and compared to myositis patients without SS (myositis/SS- group).

Results: Among 417 myositis patients, SS criteria were available for 99 patients. Thirty-four (34%) presented SS. Patients with SS tended to be more frequently women (F/M ratio 10.3 vs 3.1, p = 0.058). Age at diagnosis of myositis was similar in both groups (53 years [range 21-74] vs 53 years [range 16-77], p = 0.45).

Myositis subtypes repartition (as defined by EULAR/ACR 2017 criteria) was different in myositis/SS+ and myositis/SS- groups (p = 0.020), IBM being four-fold more prevalent in myositis/SS+ group (24% vs 6%, p = 0.020). Accordingly, the delay between the first muscle symptoms and myositis diagnosis was longer in myositis/SS+ group (6 months [0-336] vs 4 months [0-122], p = 0.057). Moreover, aside anti-cN1A antibodies, myositis-specific antibodies were less frequently found in myositis/SS+ patients than in myositis/SS- ones (53% vs 72%, p = 0.054).
Anti-cN1A antibodies were more prevalent in myositis/SS+ patients (38% vs 6%, p = 0.0005). However, in myositis/SS+ group, anti-cN1A were frequent in each of the EULAR/ACR 2017 myositis subtypes and the association between SS and anti-cN1A positivity was maintained in a multivariate analysis taking into account the diagnosis of IBM (p = 0.020).

Specificity of anti-cN1A for IBM was 0.96 [95% CI, 0.87 – 0.99] in the myositis/SS- group but dropped to 0.70 [95% CI, 0.48 – 0.85] in the myositis/SS+ group.

9 (26%) of the myositis/SS+ patients had systemic involvement typical of SS (vs 5 [7%] of the myositis/SS- patients, p = 0.11) including polyneuropathy (8 [24%] vs 5 [8%]) and type 2 cryoglobulinaemic vasculitis (1 [3%] vs none). In addition, 2 (6%) myositis/SS+ patients developed a lymphoma (one B diffuse large cell lymphoma of the parotid and one non-Hodgkin lymphoma), vs none of the myositis/SS- patients (p = 0.11). 2 (6%) of the myositis/SS+ patients developed myositis-associated cancer (diagnosed within 3 years of myositis diagnosis) versus 6 (8%) of the myositis/SS- patients.
Aside hydroxychloroquine, more frequently used in myositis/SS+ group (38% vs 16%, p = 0.012), no significant difference was found in the management of the patients (taking into account the myositis subtype).

Conclusion: Myositis patients with SS have more frequently IBM (without response to immunomodulatory drugs) than myositis patients without SS. They also have more frequently anti-cN1A antibody, independently of IBM diagnosis.


Disclosure: D. Lévy, None; B. Nespola, None; M. Giannini, None; R. Felten, Abbvie, 8, Biogen, 8, BMS, 8, Janssen, 8, Lilly, 8, Nordic Pharma, 8, Novartis, 8, MSD, 8, Pfizer, 8, UCB, 8, Abbvie, 6, Novartis, 6, Sanofi, 8; F. Severac, None; C. Varoquier, None; M. Rinagel, None; A. Korganow, None; V. Poindron, None; T. Martin, None; J. Campagne, None; H. Chereih, None; B. Bouldoires, None; B. Hervier, None; C. Lenormand, None; E. Chatelus, None; L. Arnaud, Alexion, 8, Amgen, 8, Astra-Zeneca, 8, GSK, 8, Janssen-Cilag, 8, LFB, 8, Lilly, 8, Menarini France, 8, Novartis, 8, Pfizer, 8, Roche-Chugaï, 8, UCB, 8; B. Gény, None; J. Sibilia, Roche-Chugaï, 8, BMS, 8, UCB, 8, GSK, 8, LFB, 8, Actelion, 8, Pfizer, 8, MSD, 8, Novartis, 8, Amgen, 8, Abbvie, 8, Sandoz, 8, Gilead, 8, Lilly, 8, Sanofi, 8, Janssen, 8, Mylan, 8; J. Gottenberg, Bristol-Myers Squibb, 2, 8, Pfizer, 2, 5, UCB, 5, 8, Eli Lilly, 2, 8, AbbVie, 2, 8, Roche, 2, 8, Sanofi-Genzyme, 5, 8; A. Meyer, None.

To cite this abstract in AMA style:

Lévy D, Nespola B, Giannini M, Felten R, Severac F, Varoquier C, Rinagel M, Korganow A, Poindron V, Martin T, Campagne J, Chereih H, Bouldoires B, Hervier B, Lenormand C, Chatelus E, Arnaud L, Gény B, Sibilia J, Gottenberg J, Meyer A. In Myositis Patients, Sjögren’s Syndrome Is Associated with Inclusion Body Myositis and with anti-cN1A Antibody Independently of the Myositis Subgroups [abstract]. Arthritis Rheumatol. 2020; 72 (suppl 10). https://acrabstracts.org/abstract/in-myositis-patients-sjo%cc%88grens-syndrome-is-associated-with-inclusion-body-myositis-and-with-anti-cn1a-antibody-independently-of-the-myositis-subgroups/. Accessed .
  • Tweet
  • Click to email a link to a friend (Opens in new window) Email
  • Click to print (Opens in new window) Print

« Back to ACR Convergence 2020

ACR Meeting Abstracts - https://acrabstracts.org/abstract/in-myositis-patients-sjo%cc%88grens-syndrome-is-associated-with-inclusion-body-myositis-and-with-anti-cn1a-antibody-independently-of-the-myositis-subgroups/

Advanced Search

Your Favorites

You can save and print a list of your favorite abstracts during your browser session by clicking the “Favorite” button at the bottom of any abstract. View your favorites »

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].

Wiley

  • Online Journal
  • Privacy Policy
  • Permissions Policies
  • Cookie Preferences

© Copyright 2025 American College of Rheumatology