PURE is a multi-national, prospective, observational cohort study of patients with moderate to severe chronic plaque psoriasis aimed at assessing the real-world safety and effectiveness of secukinumab and other indicated therapies. The study will enroll patients for whom, prior to and independent of study enrollment, the treating physician has decided to treat with secukinumab, or one of the other indicated therapies regimens approved for the management of moderate to severe chronic plaque psoriasis.