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  • Title: Clinical efficacy of efalizumab in patients with chronic plaque psoriasis: results from three randomized placebo-controlled Phase III trials: part I.
    Author: Pariser DM, Gordon KB, Papp KA, Leonardi CL, Kwon P, Compton PG, Rundle AC, Walicke PA, Lebwohl M.
    Journal: J Cutan Med Surg; 2005 Dec; 9(6):303-12. PubMed ID: 16699904.
    Abstract:
    BACKGROUND: Effective psoriasis therapies are needed for long-term symptom control. OBJECTIVE: Assess efalizumab (Raptiva) efficacy in a large cohort of psoriasis patients. METHODS: Data from three Phase III, randomized, double-blind, parallel-group, placebo-controlled, multicenter studies were pooled. Patients (n = 1,651) with moderate to severe plaque psoriasis received 12 weeks of subcutaneous efalizumab 1 or 2 mg/kg/wk or placebo. RESULTS: All efficacy measures reached statistical significance within each of the individual studies (p < 0.001) and overall. More efalizumab-treated patients achieved > or = 75% and > or = 50% Psoriasis Area and Severity Index (PASI) improvement at week 12 than did placebo-treated patients (27.8% vs 3.8% [p < 0.001] and 56.1% vs 14.6% [p < 0.001], respectively). Significant PASI improvements occurred as early as week 2 (12.5% vs 7.9%, p =0.0001). Adverse events were generally mild to moderate. CONCLUSION: Efalizumab resulted in early and significant improvement for all efficacy endpoints and was well tolerated in patients with moderate to severe chronic plaque psoriasis.
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