A Randomised, Double-Blind Trial to Compare the Efficacy, Safety, and Immunogenicity of the Biosimilar Ustekinumab FYB202 with Reference Ustekinumab in Patients with Moderate-to-Severe Plaque Psoriasis
Bibliographic record
Abstract
INTRODUCTION: Biosimilars allow more patients access to affordable treatment options and help reduce the financial burden on healthcare systems. This multicentre trial compared the efficacy, safety, and immunogenicity of the approved biosimilar ustekinumab FYB202 with reference ustekinumab. METHODS: Eligible patients were ≥ 18 years old with stable moderate-to-severe plaque psoriasis for ≥ 6 months and inadequate treatment response to or intolerance of ≥ 1 previous systemic treatment. Patients were randomised (1:1) to double-blind treatment with FYB202 or reference ustekinumab; patients in the reference group who achieved Psoriasis Area and Severity Index (PASI) 75 percent improvement at week 28 were re-randomised to FYB202 or reference product. The primary efficacy endpoint was percent improvement in PASI score from baseline to week 12. Therapeutic equivalence was demonstrated if, depending on the regulatory requirement with respect to the significance level, the two-sided 95% and 90% confidence intervals (CIs) were within the pre-defined equivalence intervals of ± 11% and ± 10%, respectively. RESULTS: A total of 392 patients were randomised to FYB202 (n = 197) or reference ustekinumab (n = 195). Baseline characteristics were well balanced between groups. Mean percent improvement in PASI score at week 12 was equivalent between FYB202 and reference ustekinumab with an estimated least-squares mean treatment difference of 3.27% and the two-sided 95% (- 0.90%, 7.44%) and 90% (- 0.22%, 6.77%) CIs fully contained within the pre-defined equivalence margins. Safety and immunogenicity profiles were comparable between groups. Switching from reference product to FYB202 had no clinically relevant effect on efficacy, safety, or immunogenicity. CONCLUSION: FYB202 demonstrated therapeutic equivalence to reference ustekinumab in patients with moderate-to-severe plaque psoriasis. TRIAL REGISTRATION: NCT04595409; EudraCT 2019-004364-21.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
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 | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".