Emerging therapeutics in idiopathic inflammatory myopathy

Idiopathic inflammatory myopathies (IIMs) are a heterogeneous group of systemic autoimmune diseases characterized mainly by inflammation of muscle tissue. Although IIM traditionally encompasses polymyositis, dermatomyositis (DM), and inclusion body myositis, the disease concept has been changing in...

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Main Author: Shinji Sato
Format: Article
Language:English
Published: SAGE Publishing 2020-01-01
Series:Indian Journal of Rheumatology
Subjects:
Online Access:http://www.indianjrheumatol.com/article.asp?issn=0973-3698;year=2020;volume=15;issue=6;spage=153;epage=162;aulast=Sato
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author Shinji Sato
author_facet Shinji Sato
author_sort Shinji Sato
collection DOAJ
description Idiopathic inflammatory myopathies (IIMs) are a heterogeneous group of systemic autoimmune diseases characterized mainly by inflammation of muscle tissue. Although IIM traditionally encompasses polymyositis, dermatomyositis (DM), and inclusion body myositis, the disease concept has been changing in association with progress in diagnostic techniques. Thus, the new disease entities of amyopathic DM (ADM) or clinically ADM and immune-mediated necrotizing myopathy have been recognized recently. Because of the variety of symptoms or low prevalence or difficulty in correct evaluation of muscle strength and function in IIM patients, no standard treatment strategies have been established yet. Currently, glucocorticoids remain the first line of treatment of IIMs, but in addition to these, several other immunosuppressive agents or intravenous immunoglobulin have been used in a variety of different combinations. However, due to clinical heterogeneity of these conditions as well as the number of therapeutic target organs, IIM therapy remains challenging, and refractory cases are especially difficult to treat. In recent years, new therapeutic approaches using biologics or Janus kinase inhibitors, plasma exchange therapy, and other agents have been evaluated for IIMs. However, validation of the efficacy of these new treatment options remains an issue to be resolved. In this article, the author reviews current treatment strategies and new emerging therapies for IIM patients.
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spelling doaj-art-4b3e15ddc72e4c8280903292bb3c0fc02025-02-03T12:00:44ZengSAGE PublishingIndian Journal of Rheumatology0973-36980973-37012020-01-0115615316210.4103/injr.injr_124_20Emerging therapeutics in idiopathic inflammatory myopathyShinji SatoIdiopathic inflammatory myopathies (IIMs) are a heterogeneous group of systemic autoimmune diseases characterized mainly by inflammation of muscle tissue. Although IIM traditionally encompasses polymyositis, dermatomyositis (DM), and inclusion body myositis, the disease concept has been changing in association with progress in diagnostic techniques. Thus, the new disease entities of amyopathic DM (ADM) or clinically ADM and immune-mediated necrotizing myopathy have been recognized recently. Because of the variety of symptoms or low prevalence or difficulty in correct evaluation of muscle strength and function in IIM patients, no standard treatment strategies have been established yet. Currently, glucocorticoids remain the first line of treatment of IIMs, but in addition to these, several other immunosuppressive agents or intravenous immunoglobulin have been used in a variety of different combinations. However, due to clinical heterogeneity of these conditions as well as the number of therapeutic target organs, IIM therapy remains challenging, and refractory cases are especially difficult to treat. In recent years, new therapeutic approaches using biologics or Janus kinase inhibitors, plasma exchange therapy, and other agents have been evaluated for IIMs. However, validation of the efficacy of these new treatment options remains an issue to be resolved. In this article, the author reviews current treatment strategies and new emerging therapies for IIM patients.http://www.indianjrheumatol.com/article.asp?issn=0973-3698;year=2020;volume=15;issue=6;spage=153;epage=162;aulast=Satoclinically amyopathic dermatomyositisdermatomyositisinclusion body myositisinterstitial lung diseasemyositis-specific antibodypolymyositistreatment
spellingShingle Shinji Sato
Emerging therapeutics in idiopathic inflammatory myopathy
Indian Journal of Rheumatology
clinically amyopathic dermatomyositis
dermatomyositis
inclusion body myositis
interstitial lung disease
myositis-specific antibody
polymyositis
treatment
title Emerging therapeutics in idiopathic inflammatory myopathy
title_full Emerging therapeutics in idiopathic inflammatory myopathy
title_fullStr Emerging therapeutics in idiopathic inflammatory myopathy
title_full_unstemmed Emerging therapeutics in idiopathic inflammatory myopathy
title_short Emerging therapeutics in idiopathic inflammatory myopathy
title_sort emerging therapeutics in idiopathic inflammatory myopathy
topic clinically amyopathic dermatomyositis
dermatomyositis
inclusion body myositis
interstitial lung disease
myositis-specific antibody
polymyositis
treatment
url http://www.indianjrheumatol.com/article.asp?issn=0973-3698;year=2020;volume=15;issue=6;spage=153;epage=162;aulast=Sato
work_keys_str_mv AT shinjisato emergingtherapeuticsinidiopathicinflammatorymyopathy