Intravenous Golimumab in Patients with Polyarticular Juvenile Idiopathic Arthritis and Juvenile Psoriatic Arthritis and Subcutaneous Ustekinumab in Patients with Juvenile Psoriatic Arthritis: Extrapolation of Data from Studies in Adults and Adjacent Pediatric Populations
Why this work is in the frame
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Bibliographic record
Abstract
OBJECTIVES: To describe the extrapolation approaches used to support intravenous (IV) golimumab for polyarticular juvenile idiopathic arthritis (pJIA) and juvenile psoriatic arthritis (jPsA) and subcutaneous (SC) ustekinumab for jPsA. METHODS: at weeks 0, 4, then every 8 weeks (Q8W). In the phase 3, randomized, placebo-controlled CADMUS trial, patients with PsO aged ≥ 12 to < 18 years received ustekinumab at weeks 0, 4, then Q12W. In the phase 3 CADMUS Jr trial, patients with PsO aged ≥ 6 to < 12 years received ustekinumab at weeks 0, 4, then Q12W. The ustekinumab analyses used data only from patients who received the standard ustekinumab dosing regimen (≤ 60 kg: 0.75 mg/kg; > 60 to ≤ 100 kg: 45 mg; > 100 kg: 90 mg). RESULTS: In the 127 patients with pc-JIA treated with IV golimumab (GO-VIVA), pharmacokinetic and exposure-response results were similar to those in adults with rheumatoid arthritis treated with IV golimumab. Additionally, pharmacokinetic and clinical response data from five patients with jPsA in GO-VIVA were comparable to those in adults with PsA treated with IV golimumab. No new safety signals were observed in GO-VIVA. Pharmacokinetic and clinical response data observed in the four pediatric patients with PsO and jPsA treated with ustekinumab in CADMUS and CADMUS Jr were similar to those in the 91 pediatric patients with PsO without jPsA in these trials and to those in adults with PsA treated with ustekinumab. Safety was extrapolated from CADMUS or CADMUS Jr; no new signals were observed. CONCLUSIONS: These three sets of analyses corroborate similar exposure and efficacy of IV golimumab in pediatric patients with pc-JIA or jPsA and SC ustekinumab in patients with jPsA to support extrapolation of established adult efficacy. The overall safety profiles of IV golimumab in pediatric patients with pc-JIA or jPsA and SC ustekinumab in pediatric patients with PsO with or without jPsA were consistent with the safety profiles of these agents in the context of their clinical programs and cumulative use. Based on these analyses, the US Food and Drug Administration approved IV golimumab for polyarticular JIA and active PsA in patients 2 years and older and SC ustekinumab for pediatric PsA in patients 6 years and older, highlighting how use of an extrapolation approach can help streamline drug development for pediatric patient populations in whom larger clinical trials are not feasible. CLINICAL TRIAL REGISTRATION: GO-VIVA (NCT02277444) was registered at clinicaltrials.gov on 29 October 2014; CADMUS (NCT01090427) was registered on 22 March 2010; and CADMUS Jr (NCT02698475) was registered on 3 March 2016.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it