Study of Tumor Necrosis Factor Receptor Fusion Protein Etanercept (Enbrel) in Psoriasis of the Hands and/or Feet

This multicenter investigation is a 12 week, double-blind, randomized trial of etanercept, 50 mg twice weekly versus placebo in subjects with palmoplantar psoriasis (PPP). Subjects who meet the eligibility criteria will be randomized to either 50 mg etanercept twice weekly or placebo. Subcutaneous injections will occur twice weekly at approximately the same time of day over the 12-week treatment period. The primary efficacy endpoint will be assessed after 12 weeks of treatment. At the end of the first 12 weeks, all patients (both treatment and placebo arms) will be treated with etanercept 50 mg twice a week (BIW) for an additional 12 weeks.