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  • Title: Comparative effectiveness of biologic agents for the treatment of psoriasis in a real-world setting: Results from a large, prospective, observational study (Psoriasis Longitudinal Assessment and Registry [PSOLAR]).
    Author: Strober BE, Bissonnette R, Fiorentino D, Kimball AB, Naldi L, Shear NH, Goyal K, Fakharzadeh S, Calabro S, Langholff W, You Y, Galindo C, Lee S, Lebwohl MG.
    Journal: J Am Acad Dermatol; 2016 May; 74(5):851-61.e4. PubMed ID: 26853180.
    Abstract:
    BACKGROUND: Comparing effectiveness of biologics in real-world settings will help inform treatment decisions. OBJECTIVES: We sought to compare therapeutic responses among patients initiating infliximab, adalimumab, or etanercept versus ustekinumab during the Psoriasis Longitudinal Assessment and Registry (PSOLAR). METHODS: Proportions of patients achieving a Physician Global Assessment score of clear (0)/minimal (1) and mean decrease in percentage of body surface area with psoriasis were evaluated at 6 and 12 months. Adjusted logistic regression (Physician Global Assessment score 0/1) and analysis of covariance (percentage of body surface area with psoriasis) were performed to determine treatment factors associated with effectiveness. RESULTS: Of 2541 new users on registry, 2076 had efficacy data: ustekinumab (n = 1041), infliximab (n = 116), adalimumab (n = 662), and etanercept (n = 257). Patients receiving tumor necrosis factor-alpha(-α) inhibitors were significantly less likely to achieve Physician Global Assessment score 0/1 versus ustekinumab (infliximab [odds ratio {OR} 0.396, P < .0001], adalimumab [OR 0.686, P = .0012], etanercept [OR 0.554, P = .0003] at 6 months and infliximab [OR 0.449, P = .0040] at 12 months). Mean decrease in percentage of body surface area with psoriasis was significantly greater for ustekinumab versus adalimumab (point estimate 1.833, P = .0020) and etanercept (point estimate 3.419, P < .0001) at 6 months and versus infliximab (point estimate 3.945, P = .0005) and etanercept (point estimate 2.778, P = .0007) at 12 months. LIMITATIONS: Treatment selection bias and limited data for doing adjustments are limitations. CONCLUSIONS: In PSOLAR, effectiveness of ustekinumab was significantly better versus all 3 tumor necrosis factor-α inhibitors studied for the majority of comparisons at 6 and 12 months.
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