The effect of secukinumab on moderate-to-severe scalp psoriasis: Results of a 24-week, randomized, double-blind, placebo-controlled phase 3b study

Publication date: Available online 2 August 2017
Source:Journal of the American Academy of Dermatology
Author(s): Jerry Bagel, Kristina Callis Duffin, Angela Moore, Laura K. Ferris, Kimberly Siu, Jennifer Steadman, Farid Kianifard, Judit Nyirady, Mark Lebwohl
BackgroundModerate-to-severe scalp psoriasis has not been evaluated in prospective trials of patients without moderate-to-severe body psoriasis.ObjectiveEvaluate the efficacy and safety of secukinumab in moderate-to-severe scalp psoriasis.MethodsIn this 24-week, double-blind, phase 3b study, 102 patients were randomized 1:1 to subcutaneous secukinumab 300 mg or placebo at baseline, weeks 1, 2, and 3, and then every 4 weeks from week 4 to 20. The primary efficacy variable was 90% improvement of Psoriasis Scalp Severity Index (PSSI 90) score from baseline to week 12.ResultsAt week 12, PSSI 90 (secukinumab 300 mg vs placebo, 52.9% vs 2.0%) and Investigator's Global Assessment modified 2011 scalp responses of 0 or 1 (secukinumab 300 mg vs placebo, 56.9% vs 5.9%) were significantly greater with secukinumab 300 mg than placebo (P < .001 for both). In addition, significantly more patients achieved complete clearance of scalp psoriasis at week 12 with secukinumab 300 mg than placebo (35.3% vs 0%; P < .001). The median time to 50% reduction in PSSI score was 3.29 weeks with secukinumab 300 mg. The safety profile of secukinumab was consistent with previous phase 3 studies.LimitationsThere was no active comparator arm.ConclusionSecukinumab is efficacious and well-tolerated for patients with extensive moderate-to-severe scalp psoriasis.



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