Comparative effectiveness of tildrakizumab 200 mg versus tildrakizumab 100 mg in psoriatic patients with high disease burden or above 90 kg of body weight: a 16-week multicenter retrospective study – IL PSO (Italian landscape psoriasis).

Purpose: Tildrakizumab is a selective inhibitor of IL-23 approved for the treatment of moderate-tosevere plaque psoriasis in two dosages. We conducted a 16-week multicenter retrospective study to compare the effectiveness and safety of tildrakizumab 200mg versus tildrakizumab 100mg in patients with a high disease burden or high body weight. Materials and methods: Our retrospective study included 134 patients treated with tildrakizumab 200mg and 364 patients treated with tildrakizumab 100mg from 28 Italian Dermatology Units affected by moderate-to-severe plaque psoriasis. The patients had a body weight above 90kg or a high disease burden (Psoriasis Area and Severity Index [PASI]≥16 or the involvement of difficult-to-treat areas). We evaluated the effectiveness of tildrakizumab at the week-16 visit in terms of PASI90, PASI100 and absolute PASI ≤ 2. Results: After 16weeks of treatment with tildrakizumab 200mg, PASI90 was reached by 57.5% of patients and PASI100 by 39.6% of patients. At the same time point, 34.3% and 24.2% of patients treated with tildrakizumab 100mg achieved PASI90 and PASI100, respectively. Conclusions: Our data suggest that tildrakizumab 200mg has better effectiveness than tildrakizumab 100mg in patients with a body weight ≥ 90kg and a high disease burden. [ABSTRACT FROM AUTHOR]