Nail Psoriasis Does Not Affect Skin Response to Ixekizumab in Patients With Moderate-To-Severe Psoriasis.J Drugs Dermatol. 2020 Aug 01; 19(8):741-746.JD
Background: Presence of nail psoriasis in patients with plaque psoriasis may be an indicator of greater disease severity. Previously, patients with nail psoriasis have had delayed skin clearance after treatment compared to patients without nail psoriasis. Objective: This post-hoc analysis evaluated the efficacy of ixekizumab in clearance of plaque psoriasis in patients with and without nail psoriasis. Methods: Data were integrated from two phase 3 clinical trials (UNCOVER-2 and UNCOVER-3; N=2570) to assess skin response over 12 weeks of treatment with subcutaneous placebo, etanercept, or ixekizumab in patients with and without nail psoriasis. Nail response was assessed using Nail Psoriasis Severity Index (NAPSI) and skin response was assessed as the percentage of patients achieving 75%, 90%, or 100% improvement in Psoriasis Area and Severity Index (PASI 75, PASI 90, PASI 100) or a score of 0 or 1 on the static Physician Global Assessment (sPGA 0 or 0,1). Results: From baseline to week 12, progressive improvement in psoriasis occurred with ixekizumab and etanercept treatment; however, significantly more patients with nail psoriasis than without mild PASI 75 at weeks 8 and 12 and sPGA (0,1) at week 12 with ixekizumab. Significantly more patients with severe nail psoriasis than mild achieved PASI 75 at weeks 8 and 12 with ixekizumab. Conclusion: Patients with and without nail psoriasis responded well to ixekizumab. The presence of nail psoriasis did not negatively affect skin clearance in patients treated with ixekizumab. ClinicalTrials.gov: NCT01597245, NCT01646177 J Drugs Dermatol. 2020;19(8):741-746. doi:10.36849/JDD.2020.5116.
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