Long‐Term Efficacy and Safety of Ligelizumab as Re‐Treatment in Patients With Chronic Spontaneous Urticaria
Bibliographic record
Abstract
BACKGROUND: Chronic spontaneous urticaria (CSU) is a debilitating skin condition affecting approximately 1% of the global population, characterized by recurrent wheals, angioedema, or both for over 6 weeks without identifiable external triggers. METHODS: This Phase 3b multicentre, double-blinded followed by open-label extension study evaluated the long-term efficacy and safety of ligelizumab re-treatment in patients with CSU who rolled over from previous studies. Patients from the PEARL-1 or PEARL-2 Phase 3 trials (re-treatment subpopulation) received blinded re-treatment with ligelizumab 72 mg or 120 mg every 4 weeks for 12 weeks, followed by open-label ligelizumab 120 mg up to Week 104. Patients from a Phase 3 open-label Japanese study or a Phase 2 pediatric study received open-label ligelizumab 120 mg throughout. Primary and key secondary efficacy endpoints were assessed at Week 12 in the re-treatment subpopulation; safety was evaluated throughout. RESULTS: In the overall ligelizumab re-treatment subpopulation, 53.5% and 57.5% of patients treated with ligelizumab 72 mg and 120 mg, respectively, achieved weekly urticaria activity score (UAS7) of ≤ 6 at Week 12. Re-treatment efficacy was demonstrated in both treatment arms, across all secondary endpoints, maintained up to Week 52. Re-treatment efficacy in the overall trial population showed similar trends to those in the re-treatment subpopulation. The safety profile of ligelizumab showed no new or unexpected safety signals compared with the known safety profile of ligelizumab. CONCLUSION: Long-term and re-treatment with ligelizumab was well tolerated and efficacious in patients with CSU, aligning with the short-term outcomes observed in the Phase 3 PEARL studies.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 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".