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Article History

Received: 22 May 2018

Accepted: 9 August 2018

First Online: 29 September 2018

Ethics approval and consent to participate

: PSOLAR is conducted in accordance with the International Conference on Harmonizing guidelines on Good Clinical Practices and the Declaration of Helsinki. An institutional review board or ethics committee (Goodwyn Institutional Review Board and Ontario Institutional Review Board) approved the registry protocol. All patients provided written informed consent before initiation of study procedures and to publish the data.

: Not applicable.

: AK conducted clinical research sponsored by and consulted for Janssen; KP has served as a consultant and/or speaker and/or advisor and/or steering committee member and/or received research grants and/or honoraria from AbbVie, Akros, Allergan, Amgen, Anacor, Astellas, AstraZeneca, Baxalta, Baxter, Boehringer Ingelheim, Bristol-Myers Squibb, Canfite, Celegene, Coherus, Dermira, Dow Pharma, Eli Lilly, Forward Pharma, Galderma, Genentech, GSK, Janssen, Kyowa Hakko Kirin, Leo, Medimmune, Meiji Seika Pharma, Merck, Merck-Serono, Mistusbishi Pharma, Novartis, Pfizer, Regeneron, Roche, Sanofi-Aventis/Genzyme, Takeda, UCB, and Valeant, and served as a scientific officer for Akros, Anacor, and Kyowa Hakko Kirin; ABG has current consulting/advisory board/or speakers bureau agreements with Janssen, Celgene Corp., Bristol Myers Squibb, Beiersdorf, Inc., AbbVie, UCB, Novartis, Incyte, Eli Lilly, Reddy Labs, Valeant, Dermira, Allergan, and Sun Pharmaceutical Industries, and research/educational grants from Incyte and Janssen; EMGJJ has acted as consultant and/or paid speaker for and/or participated in research sponsored by companies that manufacture drugs used for the treatment of psoriasis including: AbbVie, Janssen, Pfizer, Novartis, Eli Lilly, Celgene and Leo, has received research grants for the independent research fund of the Department of Dermatology of the Radboud University Medical Centre Nijmegen, the Netherlands from AbbVie, Pfizer, Janssen, promotion fund Rumc/SMK, ZonMw, the National Psoriasis Foundation, and VGZ, and all funding is not personal, but goes to the independent research fund of the Department of Dermatology of Radboud University Medical Centre Nijmegen, the Netherlands; SDC, SK, WL, KF, and BS are all employees of Janssen and own stock in Johnson & Johnson, of which Janssen is a wholly-owned subsidiary; JUS has consulted for Janssen, Novartis, and UCB.

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