Overview A Study of Safety and Efficacy Comparing ABT-874 Versus Methotrexate in Subjects With Moderate to Severe Plaque Psoriasis Status: Completed Trial end date: 2009-11-01 Target enrollment: Participant gender: Summary This study is being conducted to compare the efficacy of ABT-874 versus Methotrexate in subjects with moderate to severe plaque psoriasis. Phase: Phase 3 Details Lead Sponsor: AbbVie (prior sponsor, Abbott)Treatments: Methotrexate