Introduction: Novel therapies have allowed psoriasis patients to achieve high levels of skin clearance and meaningful improvements in health-related quality of life measures; however, duration of these outcomes has not been evaluated. This study aimed to estimate the duration of Psoriasis Area and Severity Index (PASI) 90 and Dermatology Life Quality Index (DLQI) 0/1 among patients with moderate-to-severe psoriasis receiving risankizumab and other treatments.
Methods: Pooled data from four phase 3 randomized clinical trials of risankizumab were used to estimate the number and proportion of days with PASI90 and DLQI0/1 during the 1-year post-baseline period with an area-under-the-curve approach. Patients were classified into five cohorts on the basis of their treatment experience during the follow-up period: risankizumab (RISA) only, RISA followed by re-randomization to RISA or placebo (RISA and RISA/PBO), adalimumab (ADA) followed by re-randomization to ADA or RISA (ADA and ADA/RISA), ustekinumab (UST) only, and placebo followed by risankizumab (PBO/RISA).
Results: A total of 2101 patients were included in this analysis. Mean age was 47.5 years, 70% were males, and mean duration since psoriasis diagnosis was 18.6 years. Patients treated with RISA only throughout the study period experienced the longest PASI90 [245.7 days (67% over 1 year)] and DLQI0/1 [213.7 (59%)] duration. Patients treated with PBO/RISA [156.8 (43%)] and UST only [154.2 (42%)] experienced the shortest PASI90 duration. Similarly, patients treated with PBO/RISA experienced the shortest DLQI0/1 duration during the 52-week study period [90.5 (25%)].
Conclusion: Patients with moderate-to-severe psoriasis treated with risankizumab exhibited longer durations of PASI90 and DLQI0/1 than patients treated with other therapies.
Keywords: Dermatology Life Quality Index; Health-related quality of life; Psoriasis; Psoriasis Area and Severity Index; Psoriasis skin clearance; Risankizumab.
© 2021. The Author(s).