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Juvenile Spondyloarthritis in the CARRA Registry: High Biologic Use, Low Prevalence of HLA-B27, and Equal Sex Representation in Sacroiliitis.

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2020 Dec 16

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<p><strong>OBJECTIVE: </strong>To describe characteristics of children with enthesitis-related arthritis (ERA) and juvenile psoriatic arthritis (JPsA) enrolled in the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Registry.</p>

<p><strong>METHODS: </strong>All children with ERA and JPsA were identified. Demographics, clinical characteristics, and treatments were described. Those with and without sacroiliitis were compared. In those with sacroiliitis, the first visit with clinically active sacroiliitis (which came first in 72% of cases) was compared to the first visit without.</p>

<p><strong>RESULTS: </strong>Nine hundred two children with ERA or JPsA were identified. Children with ERA were older at diagnosis (10.8 vs. 8.2 years, p&lt;0.01) and more likely male (56% vs. 38%, p&lt;0.01). Polyarticular involvement was reported in 57% and 72% of those with ERA and JPsA. HLA-B27 was positive in 38% and 12% of those tested with ERA and JPsA. At least one biologic was taken by 72% and 64% of those with ERA and JPsA. Sacroiliitis (diagnosed clinically and/or by imaging) was reported in 28% (40% ERA and 12% JPsA). Of these, 54% were female, 36% were HLA-B27 positive, and 81% took at least one biologic. In children with sacroiliitis, the physician global, parent/patient global, and cJADAS 10 were all significantly worse at the first visit with clinically active sacroiliitis versus the first visit without active sacroiliitis.</p>

<p><strong>CONCLUSION: </strong>In this registry, there are over 900 children with ERA or JPsA. There was high biologic use in this population, especially in those with sacroiliitis. Further, there was equal sex representation in those with sacroiliitis.</p>



Alternate Title

Arthritis Care Res (Hoboken)


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