The purpose of this study is to investigate the safety and possible usefulness of infliximab therapy for patients with severe plaque psoriasis. In a previous small study of infliximab in 33 patients with psoriasis, about 80% of patients treated with infliximab showed improvement in their psoriasis symptoms after the first 3 infusions, while 20% of patients who received placebo showed improvement. The patients will receive infusions of infliximab either 3 or 5 mg/kg or placebo at weeks 0,2,6. Patients who have significant psoriasis at week 26 will receive an additional infusion.
The purpose of the study is to evaluate the effectiveness and safety of infliximab (Remicade) in patients with plaque-type psoriasis.