Patient-Reported Well-Being in Value-Based Routine Care Using Tildrakizumab: 52-week Interim Data of the Phase IV Positive Study.

Abstract

Purpose: Psoriasis profoundly impairs patients' social, emotional, and physical condition, impacting on their overall well-being. Tildrakizumab is an interleukin-23p19 inhibitor labelled for the treatment of moderate-to-severe plaque psoriasis. The main objective of this study was to assess the effect of tildrakizumab on the overall well-being of people with psoriasis. Effectiveness, quality of life (QoL), symptomatology, treatment satisfaction, and the impact of psoriasis on the patients' partners were also evaluated.

Patients and methods: POSITIVE is a 24-month observational study in adults with moderate-to-severe psoriasis treated with tildrakizumab in a real-world setting (ClinicalTrials.gov ID: NCT04823247). Outcome measurements included the 5-item WHO Well-being Index (WHO-5), Psoriasis Area and Severity Index (PASI), Dermatology Life Quality Index-Relevant (DLQI-R), Treatment Satisfaction Questionnaire for Medication (TSQM-9), and FamilyPso. We report 52-week (W52) interim data (N = 400; observed cases).

Results: Mean ± 95% CI WHO-5 score increased from 53.8 ± 2.2 at baseline to 66.0 ± 2.3/65.7 ± 2.7 at W28/W52 (p < 0.0001, both). Mean ± 95% CI PASI decreased from 13.1 ± 0.8 at baseline to 1.7 ± 0.3/1.5 ± 0.3 at W28/W52 (p < 0.0001, both). At W28 and W52, 85.8%/54.8% and 88.4%/56.8% of patients achieved PASI ≤ 3/≤ 1. Mean ± 95% CI DLQI-R score decreased from 12.6 ± 0.8 at baseline to 3.3 ± 0.6/3.1 ± 0.6 at W28/W52 (p < 0.0001, both). At W52, mean ± 95% CI TSQM-9 domain scores were 77.4 ± 3.2 for effectiveness, 81.5 ± 2.6 convenience, and 81.1 ± 2.6 global satisfaction. Mean ± 95% CI total FamilyPso decreased from 1.3 ± 0.1 at baseline to 0.7 ± 0.2 at W52 (p < 0.0001). At the point of this analysis, 24.0% of patients had ≥1 adverse event (AE). Only one patient discontinued due to a treatment-related AE.

Conclusion: Tildrakizumab successfully contributes to value-based long-term health care for moderate-to-severe psoriasis by increasing patient wellbeing, QoL and clinical outcomes while showing very good safety and tolerability.