Patients will be seen at screening, Day 0, Weeks 4, 8, 16, 20, 24 and 28. The PPPASI (Palmo-Plantar Pustular Area and Severity Index), PPPGA (Palmo-Plantar Physician Global Assessment), PPSA (Palmo-Plantar Surface Area) will be used to evaluate severity and DLQI (Dermatology Life Quality Index), WPAI:PSO (Work Productivity and Activity Impairement Questionnaire:Psoriasis) and PPQoLI (Palmo-Plantar Quality of Life Index)will be used to evaluate quality of life. Safety will be assessed by physical examinations, evaluation of adverse events and laboratory analyses.