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Article History

Received: 14 July 2024

Accepted: 30 August 2024

First Online: 13 October 2024

Declarations

:

: Mario Valenti has been a consultant and/or speaker for Sanofi, Leo Pharma, Eli Lilly, Novartis, Janssen, UCB-Pharma, Difa-Cooper, Almirall, AbbVie and Boehringer Ingelheim. Luciano Ibba has been a consultant for Almirall. Piergiorgio Malagoli has been a speaker for AbbVie, Lilly, Novartis, Janssen-Cilag, Celgene, Leopharma, and Almirall. Andrea Carugno has been speaker and/or consultant for Almirall, Amgen, Abbvie, Boehringer-Ingelheim, Eli-Lilly, Leopharma, Jansse-Cilag, Novartis, UCB Pharma. Francesca M. Gaiani acted as a speaker or consultant for Novartis, Abbvie, Eli Lilly, Celgene, LeoPharma, and Almirall. Carlo G. Carrera has served as a board participant or speaker for Abbvie, Lilly, Janssen, Novartis, Celgene, Almirall, and Leopharma. Angelo V. Marzano reports consultancy/advisory boards disease-relevant honoraria from AbbVie, Boehringer-Ingelheim, Novartis, Pfizer, Sanofi and UCB. Antonio Costanzo has been a consultant and/or speaker for Abb-Vie, Almirall, Amgen, Janssen, Leo Pharma, Eli Lilly, Galderma, Boehringer, Novartis, Pfizer, Sandoz, and UCB. Alessandra Narcisi has served on advisory boards, received honoraria for lectures and research grants from Almirall, Abbvie, Leo Pharma, Celgene, Eli Lilly, Janssen, Novartis, Sanofi‐Genzyme, Amgen and Boehringer Ingelheim. Davide Strippoli has been a consultant and/or speaker for Abbvie, Celgene, Janssen, Eli Lilly, Novartis, Pfizer. Marco Campoli, Nicola Zerbinati, Ruggero Cascio Ingurgio and Federica Mola, have nothing to declare.

: Institutional review board approval was exempted as the study protocol did not deviate from standard clinical practice. All patients received ixekizumab as part of routine clinical practice in accordance with European guidelines. All included patients had provided written consent for retrospective study of data collected during routine clinical practice (demographics, clinical scores). The study was performed in accordance with the Helsinki Declaration of 1964 and its later amendments. Data collection and handling complied with applicable laws, regulations, and guidance regarding patient protection, including patient privacy.