ArticlePediatric rheumatology online journal2022
Latent classes of early response trajectories to biologics initiation in juvenile idiopathic arthritis: an analysis of four trials.
Article in Pediatric rheumatology online journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Phase III, Multi-Center, Multi-National, Randomized Withdrawal Study to Evaluate the Safety and Efficacy of BMS-188667 in Children and Adolescents With Active Polyarticular Juvenile Rheumatoid Arthritis (JRA)
Trial of Early Aggressive Therapy in Juvenile Idiopathic Arthritis (TREAT in JIA)
A 24 Week Randomized, Double-blind, Placebo-controlled Withdrawal Trial With a 16 Week Open-label lead-in Phase, and 64 Week Open-label Follow-up, to Evaluate the Effect on Clinical Response and the Safety of Tocilizumab in Patients With Active Polyarticular-course Juvenile Idiopathic Arthritis
Who cites it
4 citing papers in PubMed.
- Predictors of inactive disease and remission in children and young adults with juvenile idiopathic arthritis treated with etanercept.Rheumatology (Oxford, England) · 2026Trial
- Defining pain trajectories in juvenile arthritis and associated patient characteristics.Arthritis research & therapy · 2026Article
- A stratified approach to juvenile idiopathic arthritis: leveraging machine learning to uncover subgroups of patients following treatment with etanercept.Rheumatology advances in practice · 2026Article
- Update on Biologic Therapy in Juvenile Idiopathic Arthritis: A Five-year Narrative Review.Biologics : targets & therapy · 2025Review
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
aims1) To delineate latent classes of treatment response to biologics in juvenile idiopathic arthritis (JIA) patients in the first 16 weeks after initiation. 2) To identify predictors of early disease response.
methodsThe study population was drawn from four biologics trials in polyarticular course JIA: Etanercept 2000, Abatacept 2008, TRial of Early Aggressive Therapy (TREAT) 2012 and Tocilizumab 2014. The outcome was active joint counts (AJC). Semiparametric latent class trajectory analysis was applied to identify latent classes of response to treatment; AJC was transformed for this modelling. We tested baseline disease and treatment characteristics for their abilities to predict class membership of response.
resultsThere were 480 participants, 74% females. At baseline, 26% were rheumatoid factor positive. 67% were on methotrexate at enrollment. Three latent class solution provided the best fit. Baseline AJC was the sole best predictor of class membership. Participants classified by their highest membership probabilities into high baseline AJC (> 30) and slow response (26.5%), low baseline AJC (< 10), early and sustained response (29.7%), and moderate baseline AJC progressive response (43.8%). Participants were classified into the latent classes with a mean class membership posterior probability of 0.97. Those on methotrexate at baseline were less likely to belong to high baseline AJC class.
conclusionsThree latent classes of responses were detectable in the first 16 weeks of biologics therapy. Those with the highest baseline AJC demonstrated very slow response in this window and were less likely to be on concomitant methotrexate. TRIALS REGISTRATION: TREAT 2012 (NCT NCT00443430 ) (Wallace et. al, Arthritis Rheum 64:2012-21, 2012), tocilizumab trial 2014 ( NCT00988221 ), abatacept trial 2008 ( NCT00095173 ). Etanercept 2000 from Amgen does not have a trial registration number.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.