Trial reportArthritis & rheumatology (Hoboken, N.J.)2025
Pharmacodynamic Effects of Litifilimab in Lupus in a Randomized, Placebo-Controlled Phase 2 Study: Rapid and Sustained Reductions in Type I Interferon-Associated Gene Expression and Cytokines.
Trial report in Arthritis & rheumatology (Hoboken, N.J.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed.
- Litifilimab efficacy on skin outcomes in cutaneous lupus erythematosus in the Phase 2 LILAC study.Journal of the European Academy of Dermatology and Venereology : JEADV · 2026Trial
- Advances in the treatment of systemic lupus erythematosus: Biologicals, small-molecular agents, and cell-depleting therapies coming to the clinic.Journal of internal medicine · 2026Review
- Therapeutic Approaches for Cutaneous Lupus Erythematosus: a Changing Landscape of Clinical Trials.Journal of inflammation research · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
objectiveThe pharmacodynamic effects of litifilimab on type I interferon (IFN) response and correlations with clinical outcomes were investigated in systemic lupus erythematosus (SLE) and cutaneous lupus erythematosus (CLE).
methodsParticipants from part A (SLE) or part B (CLE with or without SLE) of the randomized phase 2 LILAC trial who received litifilimab (at 50 mg, 150 mg, or 450 mg) or a placebo were included. IFN gene signature (IFNGS) scores were assessed from whole-blood samples using a 22-gene panel in 120 and 131 participants (parts A and B, respectively). IFNα and other IFN-regulated cytokine concentrations were measured in serum in 112 and 131 participants (parts A and B, respectively).
resultsMost participants were IFNGS-high at baseline (79-91%), and no baseline IFNGS-low participant results were reported. In IFNGS-high participants, litifilimab induced rapid, significant (nominal P < 0.05), and sustained reductions in IFNGS scores and IFNα concentrations versus a placebo for litifilimab at 450 mg in part A and for litifilimab at 150 mg and 450 mg in part B. In part A, IFNα reductions with litifilimab were correlated with clinical response measures. In part B, dose-response relationships for IFNGS score and IFNα concentration were observed, similar to those for disease activity measured with the Cutaneous Lupus Erythematosus Disease Area and Severity Index-Activity (CLASI-A) score.
conclusionAdministration of litifilimab resulted in reductions in both IFNGS scores and IFNα concentrations, pharmacodynamic effects that correlated with clinical responses. These findings support the mechanism of action of litifilimab and its continued evaluation in larger studies of patients with SLE or CLE.
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