Disease Course, Treatments, and Outcomes of Children With Systemic Juvenile Idiopathic Arthritis–Associated Lung Disease

Yannan Huang, Laura Sompii-Montgomery, Jessica Patti, Alex Pickering, Shima Yasin, Thuy Do, Elizabeth Baker, Denny Gao, Rabheh Abdul-Aziz, Edward M. Behrens, Scott Canna, Matthew Clark, Dominic O. Co, Kathleen P. Collins, Barbara Eberhard, Monica Friedman, Thomas B. Graham, Timothy Hahn, Aimee O. Hersh, Patricia HobdayMichael J. Holland, Jennifer Huggins, Pai Yue Lu, Melissa L. Mannion, Cynthia K. Manos, Jessica Neely, Karen Onel, Amir B. Orandi, Andrea Ramirez, Adam Reinhardt, Mona Riskalla, Laisa Santiago, Matthew L. Stoll, Tracy Ting, Alexei A. Grom, Christopher Towe, Grant S. Schulert

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Objective: Systemic juvenile idiopathic arthritis–associated lung disease (SJIA-LD) is a life-threatening disease complication. Key questions remain regarding clinical course and optimal treatment approaches. The objectives of the study were to detail management strategies after SJIA-LD detection, characterize overall disease courses, and measure long-term outcomes. Methods: This was a prospective cohort study. Clinical data were abstracted from the electronic medical record, including current clinical status and changes since diagnosis. Serum biomarkers were determined and correlated with presence of LD. Results: We enrolled 41 patients with SJIA-LD, 85% with at least one episode of macrophage activation syndrome and 41% with adverse reactions to a biologic. Although 93% of patients were alive at last follow-up (median 2.9 years), 37% progressed to requiring chronic oxygen or other ventilator support, and 65% of patients had abnormal overnight oximetry studies, which changed over time. Eighty-four percent of patients carried the HLA-DRB1*15 haplotype, significantly more than patients without LD. Patients with SJIA-LD also showed markedly elevated serum interleukin-18 (IL-18), variable C-X-C motif chemokine ligand 9 (CXCL9), and significantly elevated matrix metalloproteinase 7. Treatment strategies showed variable use of anti–IL-1/6 biologics and addition of other immunomodulatory treatments and lung-directed therapies. We found a broad range of current clinical status independent of time from diagnosis or continued biologic treatment. Multidomain measures of change showed imaging features were the least likely to improve with time. Conclusion: Patients with SJIA-LD had highly varied courses, with lower mortality than previously reported but frequent hypoxia and requirement for respiratory support. Treatment strategies were highly varied, highlighting an urgent need for focused clinical trials.

Original languageEnglish (US)
Pages (from-to)328-339
Number of pages12
JournalArthritis Care and Research
Volume76
Issue number3
DOIs
StatePublished - Mar 2024

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© 2023 American College of Rheumatology.

PubMed: MeSH publication types

  • Journal Article

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