Stratigos, Alexander J, Garbe, Claus, Dessinioti, Clio, Lebbe, Celeste, Bataille, Veronique, Bastholt, Lars, Dreno, Brigitte, Concetta Fargnoli, Maria, Forsea, Ana M, Frenard, Cecille, Harwood, Catherine A, Hauschild, Axel, Hoeller, Christoph, Kandolf-Sekulovic, Lidija, Kaufmann, Roland, Kelleners-Smeets, Nicole W J, Malvehy, Josep, Del Marmol, Veronique, Middleton, Mark R, Moreno-Ramirez, David, Pellecani, Giovanni, Peris, Ketty, Saiag, Philippe, van den Beuken-van Everdingen, Marieke H J, Vieira, Ricardo, Zalaudek, Iris, Eggermont, Alexander M M, Grob, Jean-Jacques, European Dermatology Forum (EDF), the European Association of Dermato-Oncology (EADO) and the European Organization for Research and Treatment of Cancer (EORTC), HAL UVSQ, Équipe, National and Kapodistrian University of Athens (NKUA), Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, Immunologie humaine, physiopathologie & immunothérapie (HIPI (UMR_S_976 / U976)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), North & East Hertfordshire NHS Trust [Northwood, UK], Odense University Hospital (OUH), Centre de Recherche en Cancérologie et Immunologie Nantes-Angers (CRCINA), Université d'Angers (UA)-Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre hospitalier universitaire de Nantes (CHU Nantes), Centre d’Investigation Clinique de Nantes (CIC Nantes), Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre hospitalier universitaire de Nantes (CHU Nantes), University of L'Aquila [Italy] (UNIVAQ), University of Bucharest (UniBuc), Queen Mary University of London (QMUL), Kiel University, Medizinische Universität Wien = Medical University of Vienna, Military Medical Academy [Belgrade, Serbia] (2MA), Frankfurt University Hospital, Maastricht University Medical Centre (MUMC), Maastricht University [Maastricht], University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), CIBER de Enfermedades Raras (CIBERER), Université libre de Bruxelles (ULB), University of Oxford, Hospital Universitario Virgen Macarena [Sevilla, Spain] (HUVM), Università degli Studi di Modena e Reggio Emilia = University of Modena and Reggio Emilia (UNIMORE), Università cattolica del Sacro Cuore = Catholic University of the Sacred Heart [Roma] (Unicatt), Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Biomarqueurs et essais cliniques en Cancérologie et Onco-Hématologie (BECCOH), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Paris-Saclay, Hôpital Ambroise Paré [AP-HP], Coimbra Hospital and Universitary Centre [Coimbra, Portugal] (CHUC), Università degli studi di Trieste = University of Trieste, Princess Máxima Center for Pediatric Oncology, Aix Marseille Université (AMU), Assistance Publique - Hôpitaux de Marseille (APHM), Amgen Bristol-Myers Squibb, BMS Pfizer AstraZeneca GlaxoSmithKline, GSK Merck Novartis Roche Sanofi AbbVie Meso Scale Diagnostics, MSD Merck Sharp and Dohme, MSD DUSA Pharmaceuticals Les Laboratories Pierre Fabre Cilag LEO Pharma Research Foundation, The development of the current set of guideline was supported solely by funds of the EADO which were used to mainly support the consensus meeting.Dr. Stratigos reports personal fees and/or research support from Novartis, Roche, BMS, AbbVie, Sanofi, Regeneron, Genesis Pharma, outside the submitted work. Dr. Garbe reports personal fees from Amgen, personal fees from MSD, grants and personal fees from Novartis, grants and personal fees from NeraCare, grants and personal fees from BMS, personal fees from Pierre Fabre, personal fees from Philogen, grants and personal fees from Roche, grants and personal fees from Sanofi, outside the submitted work. Dr. Dessinioti has nothing to disclose. Dr. Lebbe reports grants and personal fees from Bristol-Myers Squibb, personal fees from MSD, personal fees from Novartis, personal fees from Amgen, grants and personal fees from Roche, personal fees from Avantis Medical Systems, personal fees from Pierre Fabre, personal fees from Pfizer, personal fees from Incyte, outside the submitted work. Dr. Bataille reports personal fees from Novartis, personal fees from Merck MSD, outside the submitted work. Dr. Bastholt reports personal fees for advisory board activity: BMS, Roche, Novartis, Pierre Fabre, AstraZeneca, Incyte, MSD/Merck, Bayer. Dr. Dr?no reports grants and personal fees from BMS, personal fees from MSD, grants and personal fees from Roche, grants and personal fees from Fabre, grants and personal fees from Sanofi, outside the submitted work. Dr. Fargnoli reports grants and personal fees from Almirall, grants and personal fees from Leo Pharma, personal fees from Janssen, grants and personal fees from Novartis, personal fees from Lilly, grants and personal fees from Sanofi, personal fees from UCB, grants and personal fees from AbbVie, personal fees from Celgene, personal fees from Pierre Fabre, grants and personal fees from Galderma, personal fees from Mylan, personal fees from Medac Pharma, personal fees from Roche, personal fees from Sun Pharma, outside the submitted work. Dr. Forsea reports scientific consultant/speaker fee from Novartis, Leo Pharma, Solartium, Pierre Fabre, outside the submitted work. Dr. Frenard has nothing to disclose. Dr. Harwood reports institutional research grants and honoraria from Sanofi, Novartis, Merck, Pfizer, Galderma, Meda, Almirall, PellePharm, Leo Pharma, Ceries. Dr. Hauschild reports honoraria and/or research grants from Almirall, BMS, Roche, Novartis, Pierre Fabre, Sun Pharma, Merck Serono, Sanofi-Aventis, Regeneron, MSD/Merck, Philogen, OncoSec outside the submitted work. Dr. Hoeller reports grants and personal fees from Amgen, personal fees from BMS, personal fees from MSD, personal fees from Novartis, personal fees from Pierre Fabre, personal fees from Roche, personal fees from Sanofi, personal fees from Incyte, outside the submitted work. Dr. Kandolf-Sekulovic reports speakers? honoraria for Roche, Novartis, MSD, BMS, Janssen outside the submitted work. Dr. Kaufmann reports institutional research grants (clinical trials) from AbbVie, Amgen, Biontech, BMS, Celgene, Galderma, Janssen, Leo, Lilly, Merck, MSD, Novartis, Pierre Fabre, Pfizer, Regeneron, Roche, Wyeth. Advisory board and honoraria from Merz, Roche, Novartis. Dr. Kelleners-Smeets reports grants from Netherlands Organization for Health Research and Development, other from Janssen-Cilag, other from AbbVie, other from Galderma, outside the submitted work. Dr. Malvehy reports research grants from Almirall, ISDIN, Leo Pharma, Galderma, GSK, Cantabria, participation in advisory board meetings for Almirall, Sun Pharma, BMS, Roche, Novartis, Pierre Fabre. Dr. del Marmol reports personal fees from MSD, from BMS, personal fees from Sanofi, grants and personal fees from AbbVie, grants from Janssen, outside the submitted work. Dr. Middleton reports personal fees and/or grants from Amgen, Roche, AstraZeneca, GSK, Novartis, Immunocore, BMS, Eisai and Merck. Institutional funding from Millennium, Vertex, Pfizer, Regeneron, TC Biopharm, BioLineRx, Replimune, outside the submitted work. Dr. Moreno-Ram?rez has nothing to disclose. Dr. Pellecani reports grants from university of Modena and Reggio Emilia, during the conduct of the study, grants from Novartis, grants and personal fees from Almirall, grants from Leo Pharma, from null, outside the submitted work. Dr. Peris reports honoraria for advisory board and grants from AbbVie, Almirall, Biogen Celgene, Lilly, Galderma, Leo Pharma, Novartis, Roche, Sanofi, Sun Pharma, Sandoz outside the submitted work. Dr. Saiag reports honoraria for advisory board and grants from Amgen, Bristol-Myers Squibb, MSD, Merck Serono, Novartis, Pfizer, Roche-Genentech, Pierre Fabre, and Sanofi, outside the submitted work. Dr. van den Beuken-van Everdingen has nothing to disclose. Dr. Vieira has nothing to disclose. Dr. Zalaudek reports honoraria and advisory board and grants from Sanofi, Sun Pharma, Novartis, Galderma, Roche, Celgene, Almirall, Leo Pharma, Mylan, Difa Cooper, Cieffe Labs, La Roche Posay, Pierre Fabre. Dr. Eggermont reports over the last 5 years personal fees as a consultant advisor for BIOCAD, BioInvent, Bristol-Myers Squibb (BMS), CatalYm, Ellipses, GlaxoSmithKline (GSK), HalioDx, Incyte, IO Biotech, ISA Pharmaceuticals, Merck Sharpe & Dohme (MSD), Novartis, Pfizer, Polynoma, Regeneron, Sanofi, SELLAS, SkylineDx. Dr. Grob reports personal fees for advisory board and as speaker from Amgen, Roche, GSK, Novartis, BMS, Pierre Fabre, Merck, Sanofi, Merck, Pfizer outside the submitted work., Dr. Stratigos reports personal fees and/or research support from Novartis, Roche, BMS, AbbVie, Sanofi, Regeneron, Genesis Pharma, outside the submitted work. Dr. Garbe reports personal fees from Amgen, personal fees from MSD, grants and personal fees from Novartis , grants and personal fees from NeraCare , grants and personal fees from BMS , personal fees from Pierre Fabre, personal fees from Philogen, grants and personal fees from Roche , grants and personal fees from Sanofi , outside the submitted work. Dr. Dessinioti has nothing to disclose. Dr. Lebbe reports grants and personal fees from Bristol-Myers Squibb , personal fees from MSD, personal fees from Novartis, personal fees from Amgen, grants and personal fees from Roche , personal fees from Avantis Medical Systems, personal fees from Pierre Fabre, personal fees from Pfizer, personal fees from Incyte, outside the submitted work. Dr. Bataille reports personal fees from Novartis, personal fees from Merck MSD, outside the submitted work. Dr. Bastholt reports personal fees for advisory board activity: BMS, Roche, Novartis, Pierre Fabre, AstraZeneca, Incyte, MSD/Merck, Bayer. Dr. Dréno reports grants and personal fees from BMS , personal fees from MSD, grants and personal fees from Roche , grants and personal fees from Fabre , grants and personal fees from Sanofi , outside the submitted work. Dr. Fargnoli reports grants and personal fees from Almirall , grants and personal fees from Leo Pharma , personal fees from Janssen, grants and personal fees from Novartis , personal fees from Lilly, grants and personal fees from Sanofi , personal fees from UCB, grants and personal fees from AbbVie , personal fees from Celgene, personal fees from Pierre Fabre, grants and personal fees from Galderma , personal fees from Mylan, personal fees from Medac Pharma, personal fees from Roche, personal fees from Sun Pharma, outside the submitted work. Dr. Forsea reports scientific consultant/speaker fee from Novartis, Leo Pharma, Solartium, Pierre Fabre, outside the submitted work. Dr. Frenard has nothing to disclose. Dr. Harwood reports institutional research grants and honoraria from Sanofi , Novartis , Merck , Pfizer , Galderma , Meda , Almirall , PellePharm , Leo Pharma , Ceries . Dr. Hauschild reports honoraria and/or research grants from Almirall , BMS , Roche , Novartis , Pierre Fabre , Sun Pharma , Merck Serono , Sanofi-Aventis , Regeneron , MSD/Merck , Philogen , OncoSec outside the submitted work. Dr. Hoeller reports grants and personal fees from Amgen , personal fees from BMS, personal fees from MSD, personal fees from Novartis, personal fees from Pierre Fabre, personal fees from Roche, personal fees from Sanofi, personal fees from Incyte, outside the submitted work. Dr. Kandolf-Sekulovic reports speakers’ honoraria for Roche, Novartis, MSD, BMS, Janssen outside the submitted work. Dr. Kaufmann reports institutional research grants (clinical trials) from AbbVie , Amgen , Biontech , BMS , Celgene , Galderma , Janssen , Leo , Lilly , Merck , MSD , Novartis , Pierre Fabre , Pfizer , Regeneron , Roche , Wyeth . Advisory board and honoraria from Merz, Roche, Novartis. Dr. Kelleners-Smeets reports grants from Netherlands Organization for Health Research and Development , other from Janssen-Cilag, other from AbbVie, other from Galderma, outside the submitted work. Dr. Malvehy reports research grants from Almirall , ISDIN , Leo Pharma , Galderma , GSK , Cantabria, participation in advisory board meetings for Almirall, Sun Pharma, BMS, Roche, Novartis, Pierre Fabre. Dr. del Marmol reports personal fees from MSD, from BMS, personal fees from Sanofi, grants and personal fees from AbbVie, grants from Janssen , outside the submitted work. Dr. Middleton reports personal fees and/or grants from Amgen , Roche , AstraZeneca , GSK , Novartis , Immunocore , BMS , Eisai and Merck . Institutional funding from Millennium , Vertex , Pfizer , Regeneron , TC Biopharm , BioLineRx , Replimune , outside the submitted work. Dr. Moreno-Ramírez has nothing to disclose. Dr. Pellecani reports grants from university of Modena and Reggio Emilia , during the conduct of the study, grants from Novartis , grants and personal fees from Almirall , grants from Leo Pharma , from null, outside the submitted work. Dr. Peris reports honoraria for advisory board and grants from AbbVie , Almirall , Biogen Celgene , Lilly , Galderma , Leo Pharma , Novartis , Roche , Sanofi , Sun Pharma , Sandoz outside the submitted work. Dr. Saiag reports honoraria for advisory board and grants from Amgen , Bristol-Myers Squibb , MSD , Merck Serono , Novartis , Pfizer , Roche-Genentech , Pierre Fabre , and Sanofi , outside the submitted work. Dr. van den Beuken-van Everdingen has nothing to disclose. Dr. Vieira has nothing to disclose. Dr. Zalaudek reports honoraria and advisory board and grants from Sanofi , Sun Pharma , Novartis , Galderma , Roche , Celgene , Almirall , Leo Pharma , Mylan , Difa Cooper , Cieffe Labs , La Roche Posay , Pierre Fabre . Dr. Eggermont reports over the last 5 years personal fees as a consultant advisor for BIOCAD, BioInvent, Bristol-Myers Squibb (BMS), CatalYm, Ellipses, GlaxoSmithKline (GSK), HalioDx, Incyte, IO Biotech, ISA Pharmaceuticals, Merck Sharpe & Dohme (MSD), Novartis, Pfizer, Polynoma, Regeneron, Sanofi, SELLAS, SkylineDx. Dr. Grob reports personal fees for advisory board and as speaker from Amgen, Roche, GSK, Novartis, BMS, Pierre Fabre, Merck, Sanofi, Merck, Pfizer outside the submitted work., European Dermatology Forum (EDF), the European Association of Dermato-Oncology (EADO) and the European Organization for Research and Treatment of Cancer (EORTC), Stratigos, A. J., Garbe, C., Dessinioti, C., Lebbe, C., Bataille, V., Bastholt, L., Dreno, B., Concetta Fargnoli, M., Forsea, A. M., Frenard, C., Harwood, C. A., Hauschild, A., Hoeller, C., Kandolf-Sekulovic, L., Kaufmann, R., Kelleners-Smeets, N. W. J., Malvehy, J., del Marmol, V., Middleton, M. R., Moreno-Ramirez, D., Pellecani, G., Peris, K., Saiag, P., van den Beuken-van Everdingen, M. H. J., Vieira, R., Zalaudek, I., Eggermont, A. M. M., Grob, J. -J., Dermatologie, MUMC+: MA Dermatologie (9), RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, RS: MHeNs - R3 - Neuroscience, Anesthesiologie, MUMC+: MA Anesthesiologie (9), and MUMC+: TPZ Palliatieve Zorg (9)