Juvenile dermatomyositis, the most common inflammatory myopathy of childhood, is a rare
systemic autoimmune vasculopathy that is characterised by weakness in proximal muscles …

The lack of standardized criteria for quantitative measurement of therapeutic response in
clinical trials poses a major obstacle for the development of new agents in chronic graft-versus-…

… There have been no studies to date in adult myositis patients, although unpublished experience
suggests the CMAS can also be used in adult myositis patients (Rider LG: unpublished …

… Rider LG, Nistala K. The juvenile idiopathic inflammatory myopathies: pathogenesis,
clinical and autoantibody phenotypes, and outcomes. J Intern Med 2016;280:24–38. …

Objective In polymyositis and dermatomyositis (DM), identified autoantibodies occur in <50%
of adult patients and in a smaller proportion of children. This study was undertaken as part …

Monozygotic (MZ) twins are partially concordant for most complex diseases, including
autoimmune disorders. Whereas phenotypic concordance can be used to study heritability, …

Objective To assess the safety and efficacy of rituximab in a randomized, double‐blind,
placebo‐phase trial in adult and pediatric myositis patients. Methods Adults with refractory …

In order to develop a preliminary core set of disease outcome measures for use in clinical
trials of idiopathic inflammatory myopathies (IIM), we evaluated those measures used in …

… Aggarwal and Rider contributed equally to this work. Drs. Miller and Vencovsky contributed
… Rider LG. Outcome assessment in the adult and juvenile idiopathic inflammatory myopathies. …

Background We describe the early experiences of adults with systemic rheumatic disease
who received the COVID-19 vaccine. Methods From 2 April to 30 April 2021, we conducted an …