Results from the 32‐week, phase 3 <scp>DISCREET</scp> study of apremilast in patients with moderate to severe genital psoriasis
Bibliographic record
Abstract
BACKGROUND: Genital psoriasis is highly prevalent among patients with psoriasis, is often stigmatized, causes pain and discomfort and negatively impacts quality of life. Apremilast is an oral phosphodiesterase 4 inhibitor approved for treating psoriasis and has demonstrated safety and efficacy in treating genital psoriasis, as seen in the primary 16-week DISCREET results. OBJECTIVES: To assess the efficacy and safety of apremilast 30 mg twice daily in patients with moderate to severe genital psoriasis over the 32-week study duration. METHODS: DISCREET was a phase 3, multicentre, randomized, double-blind trial that evaluated apremilast 30 mg twice daily versus placebo in a 16-week placebo-controlled phase (randomization 1:1) followed by a 16-week apremilast extension phase. Patients had moderate to severe genital psoriasis, defined as a modified static Physician's Global Assessment of Genitalia (genital PGA) score of ≥3. They also either had disease inadequately controlled by or were intolerant to topical therapy. We report the results through Week 32. RESULTS: Of 289 patients randomized, 229 continued to the apremilast extension phase (Weeks 16-32): 110 in the placebo/apremilast group and 119 in the apremilast/apremilast group. At 32 weeks, 51.8% (95% CI: 42.6, 60.9) of patients in the placebo/apremilast group and 40.3% (95% CI: 32.0, 49.3) of patients in the apremilast/apremilast group had achieved a modified genital PGA response (score of 0/1 with ≥2-point reduction from baseline). At Week 32, similar improvements in skin, genital signs and symptoms and quality of life were observed in patients who started apremilast at Week 16 or at randomization. Frequently reported treatment-emergent adverse events during all-apremilast exposure were diarrhoea (25.4%), nausea (19.4%) and headache (17.9%). CONCLUSIONS: Apremilast is an effective oral systemic therapy in patients with moderate to severe genital psoriasis and has shown consistent clinical efficacy, lessening of symptoms and quality-of-life benefit in DISCREET. CLINICAL TRIAL ID: NCT03777436.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.003 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".