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http://dx.doi.org/10.1016/S0140-6736(22)00837-6DOI Listing

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Objective: To assess changes in gene expression following tofacitinib treatment and investigate transcription patterns as potential predictors of treatment response in patients with active juvenile idiopathic arthritis (JIA).

Methods: Whole-blood samples were collected from patients with JIA at baseline and after 18 weeks of open-label tofacitinib treatment. Patients who achieved a JIA-American College of Rheumatology (ACR) response of 70% or above at week 18 were classified as treatment responders (TRs), whereas those with at most a JIA-ACR30 were classified as poor responders (PRs).

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Objectives: A new form of systemic juvenile idiopathic arthritis (SJIA) with associated lung disease (SJIA-LD) has recently been described. Multiple lines of treatment have failed to yield satisfactory results for this disorder. JAK inhibitors (JAKis) have recently been approved for the treatment of JIA, but clinical evidence of their efficacy in SJIA-LD is still weak.

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Objective: The objective of this study is to describe recent trends in disease-modifying antirheumatic drug (DMARD) use for children with juvenile idiopathic arthritis (JIA) in the United States.

Methods: We used commercial claims data (2000-2022) to perform a serial cross-sectional utilization study of children aged 1 to 18 that were diagnosed with JIA. Initiations of conventional synthetic DMARDs (csDMARDs), biologic DMARDs (bDMARDs), or targeted synthetic DMARDs (tsDMARDs) were identified after a ≥12-month baseline and expressed as a percentage of all new DMARD initiations per year, by category, class, and individual agent.

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Article Synopsis
  • Juvenile Dermatomyositis (JDM) is a rare autoimmune disorder with various subtypes, and anti-MDA5 is one of the associated myositis-specific antibodies, though treatment protocols are not well defined.
  • A case study details a previously healthy 14-month-old girl with anti-MDA5 JDM presenting symptoms like rash, weakness, and liver issues, ultimately responding well to treatment with steroids and tofacitinib.
  • This case highlights the importance of considering anti-MDA5 JDM when diagnosing patients with liver, muscle, and skin symptoms, emphasizing the need for standardized treatment approaches and more research into the mechanisms of the disease.
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