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Background: Immune checkpoint inhibitors (ICI) induce adverse events (irAEs) that do not respond to steroids, i.e. steroid-refractory (sr) irAEs, and irAEs in which steroids cannot be tapered, i.e. steroid-dependent (sd) irAEs, in about 10% of cases. An evidence-based analysis of the effectiveness of second-line immunosuppressive agents with regard to irAE and tumor control is lacking., Methods: The international web-based Side Effect Registry Immuno-Oncology (SERIO; http://serio-registry.org) is a collaborative initiative with the Paul-Ehrlich-Institute to document rare, severe, complex or therapy-refractory immunotherapy-induced side effects. The registry was queried on August 1, 2023 for cases of irAEs which were treated with second-line therapies., Results: From a total of 1330 cases, 217 patients (16.3%) received 249 second-line therapies. A total of 19 different second-line therapies were employed, including TNF-alpha antagonists (46.5%), intravenous immunoglobulins (IVIG; 19.1%), mycophenolate mofetil (15.9%), and methotrexate (3.6%). Therapy choices were determined by the type of irAE. The time to onset of sr-/sd-irAEs after ICI initiation did not consistently differ from steroid-responsive irAEs. While 74.3% of sr-/sd-irAEs resolved and 13.1% had improved, 4.3% persisted, 3.9% resulted in permanent sequelae, and 4.3% in death with ongoing symptoms. Infliximab exhibited potential for earlier symptom improvement compared to mycophenolate mofetil or IVIG. Tumor response in patients with second-line treated sd-/sr-irAE was similar to patients with irAEs treated with steroids only., Conclusion: Several second-line therapies are effective against sr-/sd-irAEs, the second-line therapies show no clear negative impact on tumor response, and infliximab shows potential for faster improvement of symptoms. However, prospective comparative data are needed., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Background: Targeted therapy (TT) of BRAF V600 mutated unresectable melanoma with inhibitors of the MAPK pathway achieves response rates of up to 76%, but most patients develop secondary resistance. Albeit TT is strikingly efficacious during the first days of treatment, even in advanced cases, long-term survival is highly unlikely, especially in patients with unfavorable baseline characteristics like elevated lactate dehydrogenase (LDH). In patients treated with anti-PD-1 immune checkpoint inhibitors, elevated baseline metastatic growth rate (MGR) was the most important prognostic factor. Here, we aimed at investigating the prognostic impact of MGR in patients with unresectable melanoma receiving TT., Methods: Clinical records of 242 patients with at least one measurable target lesion (TL) receiving TT at seven skin cancer centers were reviewed. Baseline MGR was determined measuring the largest TL at baseline and at one earlier timepoint., Results: Overall survival (OS) and progression-free survival (PFS) were significantly impaired in patients with an MGR > 3.9 mm/month (median OS: 11.4 vs. 35.5 months, P < 0.0001; median PFS: 4.8 vs. 9.2 months, P < 0.0001). Multivariable analysis of OS and PFS revealed that the prognostic impact of elevated MGR was independent of LDH, presence of brain and liver metastases, tumor burden, and line of treatment. The prognostic significance of elevated MGR was highest in patients with normal LDH., Conclusions: Baseline MGR is an important independent prognostic marker for OS and PFS in melanoma patients treated with TT. Its implementation in clinical routine is easy and could facilitate the prognostic stratification., Competing Interests: Declaration of Competing Interest N.B.W. has participated in advisory board meetings for Novartis, Pierre Fabre, and Sanofi, and received speaker fees from Sanofi, outside the submitted work. A.Oe. has received consultant fees from MSD and Bristol-Myers Squibb; has participated in advisory board meetings for MSD and Bristol-Myers Squibb. T.A. received institutional grants from SkylineDx, Neracare, Novartis, Sanofi, and consulting fees from Novartis, Neracare, BMS, CeCaVa and Chemosat, outside the submitted work. A.F. served as a consultant to Novartis, MSD, BMS, Pierre-Fabre and Immunocore; received travel support from Novartis, BMS, Pierre-Fabre, and received speaker fees from Novartis, BMS and MSD and reports institutional research grants from BMS Stiftung Immunonkologie, outside the submitted work. U.L. has received consultancy fees from MSD, Novartis, and Roche; has participated in advisory board meetings for MSD, Novartis, and Roche; has received honoraria from MSD, Novartis, and Roche. P.T. has received honoraria and/or consultancy fees from Bristol-Myers Squibb, Curevac, Merck, MSD, Novartis, Pierre Fabre, Roche, and Sanofi; has received travel support from Bristol-Myers Squibb and Pierre-Fabre. J.M. has received consultancy fees from Merck/Pfizer, MSD, Amgen, Novartis, Bristol-Myers Squibb, and Pierre Fabre; has participated in advisory board meetings for Merck/Pfizer, MSD, Amgen, Novartis, Bristol-Myers Squibb, and Pierre Fabre; has received travel support from Ultrasun, L′Oreal, MSD, Bristol-Myers Squibb, and Pierre Fabre. C.L. has received consultancy fees from, has participated in advisory board meetings for, has received speaker’s fees, and/or has received travel reimbursements from Roche, Pierre Fabre, Novartis, Bristol-Myers Squibb, Merck, MSD, Biontech, Almiral Hermal, Kyowa Kirin, Sun Pharma and Sanofi. C.G. has received personal fees from CeCaVa, MSD, NeraCare and Philogen. F.M. has received speaker’s fees from, has received travel support from, and has participated in advisory board meeting for Novartis, Roche, Bristol-Myers Squibb, MSD and Pierre Fabre; has received research funding from Novartis and Roche. T.K.E. has received consultancy fees from Philogen, Bristol-Myers Squibb, Novartis, Roche, Merck, and Sanofi; has participated in advisory board meetings for CureVac, Philogen, Bristol-Myers Squibb, Novartis, Roche, and Sanofi. L.F. has received grant funding from the Swiss National Science Foundation, Swiss Cancer League, Hookipa Pharma and Novartis Foundation; has participated in advisory board meetings for Novartis and Bristol-Myers Squibb. M.M.L., K.K., L.R., M.F., N.R., R.S., C.Z., C.E., S.K., B.K., W.H., and A.C. have no conflicts of interest to disclose., (Copyright © 2023. Published by Elsevier Ltd.)

Purpose: Clinical trials demonstrated significantly improved recurrence-free survival (RFS) of melanoma patients receiving adjuvant treatment. As data from controlled trials are based on selected populations, we investigated adjuvantly treated stage III melanoma patients under real-world conditions., Patients and Methods: In a prior multicenter cohort study, stage III-IV melanoma patients were analysed for their choice of adjuvant therapy. In this follow-up study, we examined RFS, overall and melanoma-specific survival (MSS) and response to the subsequent treatment of 589 stage III patients (232 BRAF-mutated) receiving adjuvant PD-1 inhibitors (PD1; n = 479) or targeted therapy (TT; n = 110)., Results: The median follow-up of the total cohort was 25.7 months. The main reason for premature discontinuation of adjuvant therapy was disease progression in PD1- (28.8%, n = 138/479) and adverse events in TT-treated patients (28.2%, n = 31/110). Among BRAF-mutated patients, RFS at 24 months was 49% (95% CI 40.6-59.0%) for PD1- and 67% (95% CI 58-77%) for TT-treated patients. The risk of recurrence was higher for BRAF-mutated PD1 than TT (hazard ratio 1.99; 95% CI 1.34-2.96; hazard ratio adjusted for age, sex and tumour stage, 2.21; 95% CI 1.48-3.30). Twenty-four months MSS was 87% (95% CI 81.0-94.1) for PD1 and 92% (95% CI 86.6-97.0) for TT. Response to subsequent systemic treatment for unresectable disease was 22% for all PD1- and 16% for TT-treated patients., Conclusions: PD1-treated patients had more and earlier recurrences than TT patients. In BRAF-mutated patients, adjuvant TT might prevent early recurrences more effectively than PD1 treatment. Management of recurrence despite adjuvant treatment is challenging, with low response to current therapeutic options., (Copyright © 2023 Elsevier Ltd. All rights reserved.)

Aim: Immune checkpoint inhibitor-induced encephalitis (ICI-iE) is a rare but life-threatening toxicity of immune checkpoint inhibitor treatment. We aim to identify the characteristics of ICI-iE and describe factors that discriminate it from herpes simplex virus (HSV)-1 encephalitis and anti-leucine-rich glioma-inactivated 1 (anti-LGI1) encephalitis, as two alternative entities of encephalitis., Methods: In this retrospective multicentre cohort study, we collected patients with ICI-iE reported to the Side Effect Registry Immuno-Oncology from January 2015 to September 2021 and compared their clinical features and outcome with 46 consecutive patients with HSV-1 or anti-LGI1 encephalitis who were treated at a German neurological referral centre., Results: Thirty cases of ICI-iE, 25 cases of HSV-1 encephalitis and 21 cases of anti-LGI1 encephalitis were included. Clinical presentation of ICI-iE was highly variable and resembled that of HSV-1 encephalitis, while impairment of consciousness (66% vs. 5%, p = .007), confusion (83% vs. 43%; p = .02), disorientation (83% vs. 29%; p = .007) and aphasia (43% vs. 0%; p = .007) were more common in ICI-iE than in anti-LGI1 encephalitis. Antineuronal antibodies (17/18, 94%) and MRI (18/30, 60%) were mostly negative in ICI-iE, but cerebrospinal fluid (CSF) showed pleocytosis and/or elevated protein levels in almost all patients (28/29, 97%). Three patients (10%) died of ICI-iE. Early immunosuppressive treatment was associated with better outcome (r = 0.43)., Conclusions: ICI-iE is a heterogeneous entity without specific clinical features. CSF analysis has the highest diagnostic value, as it reveals inflammatory changes in most patients and enables the exclusion of infection. Early treatment of ICI-iE is essential to prevent sequelae and death., Competing Interests: Conflict of interest statement The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: LMJ, JMV, WB, PH, RM, AC, TH, FM, LR, PB, JAS, TE, MT, CH, LvB, THu, declare no conflicts of interest. SZ declares speaker's fees or travel grants from Bristol-Myers Squibb (BMS), Sun Pharma and Merck Sharp & Dohme (MSD). ME received funding from DFG under Germany's Excellence Strategy – EXC-2049 – 390688087, BMBF, DZNE, DZHK, EU, Corona Foundation, and Foundation Leducq. ME reports grants from Bayer and fees paid to the Charité from AstraZeneca, Bayer, Boehringer Ingelheim, BMS, Daiichi Sankyo, Amgen, GSK, Sanofi, Covidien, Novartis, Pfizer, all outside the submitted work. CUB received compensation (all paid to the institute except TRV) for advisory roles for BMS, MSD, Roche, Novartis, GlaxoSmithKline, AstraZeneca, Pfizer, Lilly, GenMab, Pierre Fabre Pharmaceuticals, Third Rock Ventures, received research funding (all paid to the institute) from BMS, Novartis, NanoString, and declares stockownership in Immagene BV, where he is co-founder. AG received speaker's honoraria from Allmiral, BMS, MSD and Roche; AG has intermittent advisory board relationships with Amgen, BMS, Novartis, MSD, Pierre Fabre Pharmaceuticals, Pfizer, Roche and Sanofi Genzyme; travel and congress fee support from BMS, MSD, Novartis, Pierre Fabre Pharmaceuticals and Roche. Clinical studies: Amgen, Array, BMS, GSK, Novartis, Merck, MSD, Pfizer, and Roche. MS received speaker's honoraria and travel grants from Abbvie, BMS, Merck, MSD, Novartis, Pfizer, and Sanofi. JCH has served as a consultant for GSK, MSD, Pierre Fabre Pharmaceuticals, Sunpharma (personal) and BMS, Immunocore, Nektar, Novartis, Philogen (institution); received speaker's honoraria from Almirall, Amgen, BMS, GSK, MSD, Novartis, Pfizer, Pierre Fabre Pharmaceuticals, Roche, Sanofi (personal); a scientific grant from BMS and Sunpharma (institution) and clinical trial honoraria for BioNTech, BMS, Genentech, Immunocore, Iovance, MSD, Novartis, Philogen, Pierre Fabre Pharmaceuticals, Regeneron, Roche, Sanofi, 4SC (institution). SU declares research support from Bristol Myers Squibb and Merck Serono; speakers and advisory board honoraria from Bristol Myers Squibb, MSD, Merck Serono, Novartis and Roche, and travel support from Bristol Myers Squibb, MSD, and Pierre Fabre Pharmaceuticals. LZ served as consultant and/or has received honoraria from BMS, MSD, Novartis, Pierre-Fabre Pharmaceuticals, Sunpharma and Sanofi; Research funding to institution: Novartis; travel support from MSD, BMS, Amgen, Pierre-Fabre Pharmaceuticals, Sunpharma, Sanofi and Novartis, outside the submitted work. LS declares advisory and speaker honoraria from Bristol Myers Squibb. KCK has served as consultant or/and has received honoraria from Amgen, Roche, Bristol Myers Squibb, Merck Sharp and Dohme, Pierre Fabre Pharmaceuticals, and Novartis, and received travel support from Amgen, Merck Sharp and Dohme, Bristol Myers Squibb, Amgen, Pierre Fabre Pharmaceuticals, Medac and Novartis. RSB has served as consultant for and/or received honoraria from Amgen, AstraZeneca, BMS, Celgene, Jansen-Cilag, MSD, Merck Seono, Novartis, Pfizer, and Roche. GVL is consultant advisor for Agenus, Amgen, Array Biopharma, Boehringer Ingelheim, BMS, Evaxion, Hexal AG (Sandoz Company), Highlight Therapeutics S.L., Innovent Biologics USA, MSD, Novartis Pharma AG, OncoSec, PHMR Limited, Pierre Fabre Pharmaceuticals, Provectus, Qbiotics, Regeneron. FS has received an honorarium from Gilead for an advisory board meeting. MS received speaker's honoraria and participated in advisory boards of BMS, Novartis, MSD, Roche, Pierre Fabre Pharmaceuticals, Kyowa Kirin, Immunocore, Recordati and Sanofi-Genzyme. MS received travel accommodation and expenses by Novartis, Pierre Fabre Pharmaceuticals, and Sun Pharma. LEF has served as consultant for Galderma, Janssen, Leo Pharma, Eli Lilly, Almirall, Union Therapeutics, Regeneron, Novartis, Amgen, Abbvie, UCB, Biotest, and InflaRx. SK received compensation for advising roles for Biogen. LH has served as consultant for Amgen, BMS, Biome-dx, EMA, Immunocore, Kyowa Kirin, MSD, Novartis, Pierre Fabre Pharmaceuticals, Roche, and Sanofi., (Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved.)

Background: Conjunctival melanoma is a rare type of ocular melanoma, which is prone to local recurrence and metastasis and can lead to patient death. Novel therapeutic strategies have revolutionized cutaneous melanoma management. The efficacy of these therapies in conjunctival melanoma, however, has not been evaluated in larger patient cohorts., Methods: In this multi-center retrospective cohort study with additional screening of the ADOREG database, data were collected from 34 patients with metastatic conjunctival melanoma who received targeted therapy (TT) (BRAF ± MEK inhibitors) or immune checkpoint inhibitors (ICI) (anti-PD-1 ± anti-CTLA4). In 15 cases, tissue was available for targeted next-generation-sequencing (611 genes) and RNA sequencing. Driver mutations, tumor mutational burden, copy number variations and inflammatory/IFNγ gene expression signatures were determined., Results: Genetic characterization identified frequent BRAF (46.7%, 7/15), NRAS (26.7%, 4/15), NF1 (20%, 3/15), and TERT promoter (46.7%, 7/15) mutations. UV associated C>T and CC>TT mutations were common. Median follow-up time after start of first TT or ICI therapy was 13.2 months. In 26 patients receiving first-line ICI, estimated one-year progression-free survival (PFS) rate was 42.0%, PFS and overall survival (OS) 6.2 and 18.0 months, respectively. First-line TT was given to 8 patients, estimated one-year PFS rate was 54.7%, median PFS and OS 12.6 and 29.1 months, respectively., Conclusions: Our findings support the role of UV irradiation in conjunctival melanoma and the genetic similarity with cutaneous melanoma. Conjunctival melanoma patients with advanced disease benefit from both targeted therapies (BRAF ± MEK inhibitors) and immune checkpoint inhibitors., Competing Interests: Conflict of interest statement The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: GL has received travel support for congress participation: Sun Pharma. PJ declares no conflicts of interest. IM declares no conflicts of interest. AS declares no conflicts of interest. JCH receives a scientific grant from BMS, payments ad consultant from Pierre Fabre, MSD, Sunpharma and speaker honoraria from BMS, MSD, Roche, Novartis, Pfizer, Sanofi, GSK, Amgen, Almirall. AF Advisory board: Pierre-Fabre, Roche, Novartis, BMS, MSD, travel support for congress participation: Pierre-Fabre, Roche, Novartis, BMS, honoraria for talks: Roche, Novartis, BMS, MSD, CeGaT, research funding: Stiftung Immunonkologie BMS. All outside the submitted work. JE declars no conflicts of interest. FM has received travel support or/and speaker's fees or/and advisor's honoraria by Novartis, Roche, BMS, MSD and Pierre Fabre and research funding from Novartis and Roche. LR declares no conflicts of interest. KCK has served as consultant or/and has received honoraria from Amgen, Roche, Bristol Myers Squibb, Merck Sharp and Dohme, Pierre Fabre, and Novartis, and received travel support from Amgen, Merck Sharp and Dohme, Bristol Myers Squibb, Amgen, Pierre Fabre, Medac and Novartis. MZ has served as consultant or/and has received honoraria from Bristol Myers Squibb, Merck Sharp and Dohme, Pierre Fabre, Novartis, Sanofi Genzyme and SUN Pharma. MS Consultancy, speaker fees or travel grants: BMS, MSD, Roche, Kyowa Kirin, Novartis, Sanofi Genzyme, Pierre Fabre, Sun Pharma, Immunocore. FR declares no conflicts of interest. AS declares no conflicts of interest. KS declares no conflicts of interest. FM served as consultant and/or has received honoraria from Novartis, Roche, Bristol-Myers Squibb, Merck Sharp & Dohme, Pierre Fabre, Sanofi Genzyme and travel support from Novartis, Sunpharma and Bristol-Myers Squibb, outside the submitted work. RG Honoraria for lectures (personally): Roche, BMS, MSD, Novartis, Amgen, Merck Serono, Almirall Hermal, SUN, Sanofi, Pierre-Fabre. Honoraria for advice (personally): BMS, Roche, Novartis, Almirall Hermal, MSD, Amgen, SUN, Sanofi, Pierre-Fabre, 4SC, Bayer, MerckSerono, Pfizer, Immunocore. Research grants (to institution): Novartis, Pfizer, Johnson & Johnson, Amgen, Merck-Serono, SUN Pharma, Sanofi, Almirall Hermal. Support for meeting participation: Roche, BMS, SUN, Merck-Serono, Pierre-Fabre. CP received honoraria (speaker honoraria or honoraria as a consultant) and travel support from: Novartis, BMS, Roche, Merck Serono, MSD, Celgene, AbbVie, SUNPHARMA, UCB, Allergy Therapeutics, Pierre Fabre, Kyowa Kirin and LEO. PT declares honoraria from Bristol-Myers Squibb, Novartis, Merck Sharp & Dohme, Pierre-Fabre, CureVac, Merck Serono, Sanofi, Roche, Kyowa Kirin, Biofrontera, Almirall, and 4SC; travel support from Bristol-Myers Squibb and Pierre-Fabre, outside the submitted work.BS is on the advisory board or has received honoraria from Almirall, Pfizer, Sanofi, Incyte, Novartis, Roche, Bristol-Myers Squibb (BMS) and MSD Sharp & Dohme, research funding from Novartis, Pierre Fabre Pharmaceuticals, Bristol-Myers Squibb and MSD Sharp & Dohme and travel support from Novartis, Roche, Bristol-Myers Squibb, Pierre Fabre Pharmaceuticals, MSD Sharp & Dohme and Amgen, outside the submitted work. MS declares no conflict of interest. MH has been a member of advisory boards of Almirall Hermal, Sanofi-Aventis, MSD, 622 BMS, Novartis, and received speaker's honoraria from Galderma and Biofrontera. UL speaker fees: Roche, Novartis, Sanofi, MSD; consultancy: Roche, Sanofi, MSD, Novartis. AZ received travel support from Novartis, Sanofi Grenzyme, Sun Pharma, and Bristol-Myers Squibb, outside the submitted work. CM declares no conflicts of interest. SU declares research support from Bristol Myers Squibb and Merck Serono; speakers and advisory board honoraria from Bristol Myers Squibb, Merck Sharp & Dohme, Merck Serono, Novartis and Roche, and travel support from Bristol Myers Squibb, Merck Sharp & Dohme, and Pierre Fabre. LZ served as consultant and/or has received honoraria from Bristol-Myers Squibb, Merck Sharp & Dohme, Novartis, Pierre-Fabre, Sunpharma and Sanofi; Research funding to institution: Novartis; travel support from Merck Sharp & Dohme, Bristol-Myers Squibb, Amgen, Pierre-Fabre, Sanofi, Sunpharma and Novartis, outside the submitted work. EH declares no conflicts of interest. NB declares no conflicts of interest. DS D.S. Served as consultant, advisory board and/or speaker and has received honoraria from Amgen, Array, Bristol-Myers Squibb, Helsinn, Immunocore, InflarX, Merck Sharp & Dohme, Merck-Serono, Nektar, Novartis, OncoSec, Pfizer, Philogen, Regeneron, Replimune, Sandoz, Sanofi, Sunpharma, 4SC and travel support from Bristol-Myers Squibb, Merck Sharp & Dohme, Merck-Serono, Nektar, Novartis, Pierre Fabre, Sandoz, Sanofi, and 4SC, outside the submitted work. HW declares no conflicts of interest. EL served as consultant and/or has received honoraria from Amgen, Bristol-Myers Squibb, Merck Sharp & Dohme, Novartis, Medac, Sanofi, Sunpharma and travel support from Medac, Merck Sharp & Dohme, Bristol-Myers Squibb, Pierre Fabre, Sunpharma and Novartis, outside the submitted work. KG declares no conflicts of interest., (Copyright © 2022 Elsevier Ltd. All rights reserved.)

Introduction: Cutaneous melanoma is notorious for the development of in-transit metastases (ITM). For unknown biological reasons, ITM remain the leading tumour manifestation without progression to distant sites in some patients., Methods: In total, 191 patients with initially unresectable stage III ITM and satellite metastases from 16 skin cancer centres were retrospectively evaluated for their tumour characteristics, survival and therapy response. Three groups according to disease kinetics (no distant progress, slow (>6 months) and fast (<6 months) distant progression) were analysed separately., Results: Median follow-up time was 30.5 (range 0.8-154.0) months from unresectable ITM. Progression to stage IV was observed in 56.5% of cases. Patients without distant metastasis were more often female, older (>70 years) and presented as stage III with lymph node or ITM at initial diagnosis in 45.7% of cases. Melanoma located on the leg had a significantly better overall survival (OS) from time of initial diagnosis compared to non-leg localised primaries (hazard ratio [HR] = 0.61, 95% confidence interval [CI] 0.40-0.91; p = 0.017), but not from diagnosis of unresectable stage III (HR = 0.67, 95% CI 0.45-1.02; p = 0.06). Forty percent of patients received local therapy for satellite and ITM. Overall response rate (ORR) to all local first-line treatments was 38%; disease control rate (DCR) was 49%. In total, 72.3% of patients received systemic therapy for unresectable stage IIIB-D. ORR for targeted therapy (n = 19) was highest with 63.2% and DCR was 84.2% compared to an ORR of 31.4% and a DCR of 54.3% in PD-1 treated patients (n = 70). Patients receiving PD-1 and intralesional talimogene laherparepvec (n = 12) had an ORR of 41.7% and a DCR of 75%., Conclusion: Patients with unresectable ITM and without distant progression are more often female, older, and have a primary on the leg. Response to PD-1 inhibitors in this cohort was lower than expected, but further investigation is required to elucidate the biology of ITM development and the interplay with the immune system., Competing Interests: Conflict of interest statement The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: A.Z.: received travel support from Novartis, Sanofi Genzyme, and Bristol Myers Squibb, outside the submitted work. M.P.: No relevant conflicts of interest. J.C.H.: received honoraria from talks: BMS, MSD, Roche, Novartis, Sun Pharma, Almirall, Sanofi, honoraria from adboards: Sun Pharma, Sanofi, Pierre Fabre, scientific grant: BMS. V.G.: received honoraria from Bristol Myers Squibb (BMS) and reports travel support from Novartis, Pierre Fabre Pharmaceuticals, BMS, Merck Sharp & Dohme (MSD), Sanofi Genzyme and SUN Pharmaceutical Industries outside the submitted work. Z.F.: No relevant conflicts of interest. C.L.: served as consult and and/or has received honoraria and or received travel support from Roche, Novartis, Pierre Fabre, MDS, Merck, BMS, Sanofi, Sun Pharma, Biontech, Kyowa Kirin, Almirall Hermal outside the submitted work. D. R.-S. has received honoraria for talks from Roche and Pierre Fabre and has received travel grants from Novartis, Pierre Fabre and Sanofi Genzyme. R. G.: received honoraria: Roche, BMS, MSD, Novartis, Amgen, Merck Serono, Almirall Hermal, SUN, Sanofi, Pierre Fabr; consultant or advisory role: BMS, Roche, Novartis, Almirall Hermal, MSD, Amgen, SUN, Sanofi, Pierre Fabre, Merck Serono, Bayer, Pfizer; Funding: Novartis, Pfizer, Johnson & Johnson, Amgen, Merck Serono, SUN Pharma, Sanofi; travel, accommodations, expenses: Roche, BMS, SUN, Merck Serono, Pierre Fabre. J. U. is on the advisory board or has received honoraria and travel support from Amgen, Bristol Myers Squibb, GSK, LeoPharma, Merck Sharp and Dohme, Novartis, Pierre Fabre, Roche, Sanofi outside the submitted work. Se.H.: served as consultant and/or has received honoraria from Amgen, Bristol Myers Squibb, Merck Sharp & Dohme, Novartis, Sanofi, Sun Pharma outside the submitted work. L.R.: No relevant conflicts of interest. K.C.K.: served as consultant and/or has received honoraria from Amgen, Roche, Bristol-Myers Squibb, Merck Sharp & Dohme, Novartis, Medac, Sanofi, Sun Pharma and travel support from Amgen, Merck Sharp & Dohme, Bristol Myers Squibb, Amgen, Pierre Fabre, Sun pharma and Novartis, outside the submitted work. C.W.: served as consultant and/or has received honoraria from Amgen, Roche, Bristol Myers Squibb, Kyowa Kirin, Merck Sharp & Dohme, Novartis, Sanofi, Takeda and travel support from Amgen, Bristol Myers Squibb, Curevac, Pierre Fabre and Novartis, outside the submitted work. A.M.: has received speaker or consultant fees from AbbVie, Almirall, Novartis, Bristol Myers Squibb, Pfizer, and Roche, outside of the submitted work; A.M. is employed by Novartis; the work described in this publication was completed prior to his employment at Novartis. K. M.T.: served as consultant and/or has received honoraria from Bristol Myers Squibb, MSD, Roche, Novartis, Pierre Fabre, Sanofi, Sun Pharma, LEO, Galderma, and Candela and travel support from Bristol Myers Squibb, Roche, Novartis, Pierre Fabre, and Candela, outside the submitted work. T.W.: received honoraria and travel support from Amgen, Novartis, Bristol Myers Squibb, Merck Sharp & Dohme, Pierre Fabre, outside the submitted work. C.P.: received honoraria (speaker honoraria or honoraria as a consultant) and travel support from: Novartis, BMS, Roche, Merck Serono, MSD, Celgene, AbbVie, Sanofi ‘Genzyme, Sun Pharma, Amgen and LEO. A. R.: reports non-financial support from Amgen, non-financial support from Roche, personal fees and non-financial support from Merck/MSD, grants and non-financial support from Novartis, grants and non-financial support from BMS, non-financial support from TEVA, grants from Adtec, outside the submitted work. S. U.: declares research support from Bristol Myers Squibb and Merck Serono; speakers and advisory board honoraria from Bristol Myers Squibb, Merck Sharp & Dohme, Merck Serono, Novartis and Roche, and travel support from Bristol Myers Squibb, and Merck Sharp & Dohme. L.Z.: served as consultant and/or has received honoraria from Roche, Bristol Myers Squibb (BMS), Merck Sharp & Dohme (MSD), Novartis, Pierre Fabre, Sanofi, and Sun Pharma and travel support from MSD, BMS, Amgen, Pierre Fabre, Sun Pharma, Sanofi and Novartis, outside the submitted work. N.S.: No relevant conflicts of interest. A.S.: No relevant conflicts of interest. F.K.: No relevant conflicts of interest. L.H.: served as consultant and/or has received honoraria from Amgen, Roche, Bristol Myers Squibb, Curevac, Merck Sharp & Dohme, Novartis, Pierre Fabre, Sanofi, Sun Pharma and a research grant from Novartis, outside the submitted work. Fri.M.: has received travel support or/and speaker's fees or/and advisor's honoraria by Novartis, Roche, BMS, MSD and Pierre Fabre and research funding from Novartis and Roche. Fra.M.: served as consultant and/or has received honoraria from Novartis, Roche, Bristol Myers Squibb, Merck Sharp & Dohme, Pierre Fabre, Sanofi Genzyme and travel support from Novartis, Sun Pharma and Bristol Myers Squibb, outside the submitted work. M.S.: participated in advisory boards of Bristol Myers Squibb, Novartis, MSD, Roche, Pierre Fabre, Kyowa Kirin, Immunocore and Sanofi Genzyme. M.S. received travel accommodation and expenses by Novartis, Pierre Fabre, and Sun Pharma, outside the submitted work. B.S.: received personal honoraria from Bristol Myers Squibb, Merck Sharpe & Dome, Novartis, Pfizer/EMD Serono, Pierre Fabre and Roche; has an advisory role for Bristol Myers Squibb, Merck Sharpe & Dome, Novartis, Pierre Fabre and Roche; and has received research funding from Bristol Myers Squibb, Merck Sharpe & Dome, and Pierre Fabre, all paid to the institute. Su.H.: No relevant conflicts of interest. D.S: reports personal fees and non-financial support from Roche/Genentech, grants, personal fees, non-financial support and other from BMS, personal fees from Merck Sharp & Dohme, personal fees and non-financial support from Merck Serono, grant, personal fees and non-financial support from Amgen, personal fees from Immunocore, personal fees from Incyte, personal fees from 4SC, personal fees from Pierre Fabre, personal fees and non-financial support from Sanofi/Regeneron, personal fees from Array BioPharma, personal fees from Pfizer, personal fees from Philogen, personal fees from Regeneron, personal fees from Nektar, personal fees from Sandoz, grants, personal fees and non-financial support from Novartis, personal fees and non-financial support from Sun Pharma, Replimune, Helsinn, OncoSec and InFlaRx outside the submitted work. E.L.: served as consultant and/or has received honoraria from Amgen, Actelion, Roche, Bristol Myers Squibb, Merck Sharp & Dohme, Novartis, Janssen, Medac, Sanofi, Sun Pharma and travel support from Amgen, Merck Sharp & Dohme, Bristol Myers Squibb, Amgen, Pierre Fabre, Sun Pharma and Novartis, outside the submitted work., (Copyright © 2021 Elsevier Ltd. All rights reserved.)

Background: Elevated lactate dehydrogenase (LDH) is a known predictive and prognostic factor for a poor outcome in patients with metastatic melanoma. It is unclear whether first-line targeted therapy (TT) or immune checkpoint inhibition (ICI) is more beneficial in melanoma patients with elevated LDH because prospective studies in this area are lacking., Methods: This multicentre retrospective cohort study was conducted at 25 melanoma centres worldwide to analyse progression-free survival (PFS) and overall survival (OS) among melanoma patients with elevated LDH. The role of confounders was addressed by using inverse probability of treatment weighting., Results: Among 173 BRAFV600-mutant patients, PFS at 12 months in the TT group was 22% compared with 52% in the combined anti-PD-1 and anti-CTLA-4 group (HR 0.6, 95% CI 0.4-1.0, p = 0.07) and 18% in the anti-PD-1 monotherapy group (HR 1.8, 95% CI 1.2-2.8, p = 0.003). Twelve months' OS was 48% in the TT group compared with 83% in the combined anti-PD-1 and anti-CTLA-4 group (HR 0.5, 95% CI 0.3-1.0, p = 0.03) and 50% in the anti-PD-1 monotherapy group (HR 1.2, 95% CI 0.8-2.0, p = 0.37). The ORR in the TT group was 63%, compared with 55% and 20% in the combined anti-PD-1 and anti-CTLA-4 and anti-PD-1 monotherapy group, respectively. Among 314 patients receiving ICI first-line, PFS at 12 months was 33% in the anti-PD-1 group versus 38% in the combined anti-PD-1 and anti-CTLA-4 group (HR 0.8, 95% CI 0.6-1.0; p = 0.07). OS at 12 months was 54% in the anti-PD-1 group versus 66% in the combined ICI group (HR 0.7, 95% CI 0.5-1.0; p = 0.03). The ORR was 30% in the anti-PD-1 monotherapy group and 43% in the combined anti-PD-1 and anti-CTLA-4 group. Results from multivariate analysis confirmed the absence of qualitative confounding., Conclusions: Among BRAF-mutant patients with elevated LDH, combined anti-PD-1 and anti-CTLA-4 blockade seems to be associated with prolonged OS compared with first-line TT. Among patients receiving ICI as a first-line treatment, OS appears to be longer for the combination of anti-PD-1 and anti-CTLA-4 than for anti-PD-1 alone., Competing Interests: Conflicts of interest statement The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Sarah Knispel: Travel support from Bristol-Myers Squibb and Amgen. Maximilian Gassenmaier: Consultant or Advisory Role: Novartis; Research funding: Novartis. Carmen Loquai: Advisory role/Speakers fee/Travel support: BMS, MSD, Merck, Novartis, Pierre Fabre, Sunpharma, Sanofi, Roche, Almirall Hermal, Biontech, Kyowa Kirin. Cindy Franklin: Advisory board or received honoraria of BMS and Novartis and received travel grants from BMS, Novartis and Pierre Fabre. Ralf Gutzmer: Personal Honoraria from Roche, BMS, MSD, Novartis, Amgen, Merck Serono, Almirall Hermal, SUN, Sanofi, Pierre-Fabre. Consultant or advisory role: BMS, Roche, Novartis, Almirall Hermal, MSD, Amgen, SUN, Sanofi, Pierre-Fabre, MerckSerono, Bayer, Pfizer. Research funding: Novartis, Pfizer, Johnson & Johnson, Amgen, Merck-Serono, SUN Pharma, Sanofi, all paid to the institution. Travel, accommodations, expenses: Roche, BMS, SUN, Merck-Serono, Pierre-Fabre. Bastian Schilling: Personal honoraria from Bristol-Myers Squibb, Merck Sharpe and Dome, Novartis, Pfizer/EMD Serono, Pierre Fabre and Roche; has an advisory role for Bristol-Myers Squibb, Merck Sharpe and Dome, Novartis, Pierre Fabre and Roche; and has received research funding from Bristol-Myers Squibb, Merck Sharpe and Dome, and Pierre Fabre, all paid to the institute. Andreas Stang: Speaker honoraria from Merck Serono. Selma Ugurel: Research support from Bristol-Myers Squibb and Merck Serono; speakers and advisory board honoraria from Bristol-Myers Squibb, Merck Sharp & Dohme, Merck Serono, Novartis and Roche, and Travel support from Bristol-Myers Squibb, and Merck Sharp & Dohme. Lisa Zimmer: Honoraria from Roche, BMS, MSD, Novartis, Pierre Fabre; Consultant or advisory role: BMS, Novartis, Pierre Fabre, Sunpharma, Sanofi, MSD; Research funding to institution: Novartis; Travel support: BMS, Pierre Fabre, Sanofi, Amgen, Novartis, Sunpharma. Carina N Owen: Travel support from Merck Sharp Dohme. Jessica C Hassel: Honoraria from BMS, MSD, Novartis, Roche, Pierre Fabre, Sanofi; Consultant or advisory role: MSD, Pierre Fabre, Sunpharma; Research funding: BMS; Travel support: Pierre Fabre. Friedegund Meier has received travel support or/and speaker's fees or/and advisor's honoraria by Novartis, Roche, BMS, MSD and Pierre Fabre and research funding from Novartis and Roche. Carola Berking: Honoraria from BMS, Immunocore, Merck, MSD, Novartis, Pierre Fabre, Roche, Sanofi-Aventis for consultancy and/or presentations on scientific symposia. Douglas B Johnson: Advisory boards for Array Biopharma, BMS, Iovance, Jansen, Merck and Novartis and research funding from BMS and Incyte. Elisabeth Livingstone: Intermittent advisory board relationships with Roche, BMS, Novartis, Sanofi and Actelion and has received travel grants and honoraria from Roche, BMS, MSD, Amgen, Pierre Fabre, SunPharma, Novartis, Boehringer-Ingelheim, medac. Alexander M Menzies: Advisory boards for BMS, MSD, Novartis, Roche, Pierre-Fabre, QBiotics. Simone M Goldinger: past advisory boards for BMS, MSD, Roche and Novartis. Kai-Martin Thoms: Honoraria from BMS, MSD, Roche, Novartis, Pierre Fabre, Sun Pharma, LEO, Candela; Consultant or advisory role: BMS, MSD, Roche, Novartis, Pierre Fabre, Sun Pharma, LEO; Travel support: BMS, MSD, Roche, Novartis, Pierre Fabre, LEO. Dirk Schadendorf: Has/had a consultant/advisory role in the last 2 years for Bristol-Myers Squibb (BMS), Roche-Genentech, Merck Sharp & Dohme (MSD), Array, Immunocore, InFlaRX, Nektar, Novartis, Merck Serono, Pierre Fabre, Pfizer, Philogen, Regeneron, SunPharma, Sandoz, Sanofi, Ultimovacs and 4SC. He also received research funds from Bristol-MyersSquibb, Roche, Amgen and Novartis. Travel support: BMS, Pierre Fabre, Sanofi, Nektar, Novartis, Roche, Merck Serono and Sunpharma. Dennis Niebel: Has received speakers’ honoraria or travel expense reimbursements from BMS, Novartis, GSK, Celgene and MSD. Judith Sirokay: Honoraria from Roche, BMS, MSD, Novartis, Consultant or advisory role: Novartis, MSD; Travel support: BMS, Pierre Fabre. Peter Mohr: Has/had a consultant/advisory role in the last 2 years for Amgen, Bristol-Myers Squibb (BMS), Roche-Genentech, Merck Sharp & Dohme (MSD), Novartis, Merck Serono, Pierre Fabre, Pfizer, Philogen, Sanofi. He also received research funds from Bristol-Myers Squibb, Merck Sharp & Dohme (MSD) and Novartis. Travel support: Amgen, BMS, Merck Sharp & Dohme (MSD), Pierre Fabre, Sanofi, Novartis, Roche and Sunpharma. Laura Susok: Collaboration with BMS, Novartis, Sunpharma, MSD, Roche, Pierre Fabre. Paolo Ascierto: Has/had a consultant/advisory role for Bristol-Myers Squibb, Roche-Genentech, Merck Sharp & Dohme, Novartis, Array, Merck Serono, Pierre-Fabre, Incyte, Medimmune, AstraZeneca, Syndax, Sun Pharma, Sanofi, Idera, Ultimovacs, Sandoz, Immunocore, 4SC, Alkermes, Italfarmaco, Nektar, Boehringer-Ingelheim, Eisai, Regeneron, Daiichi Sankyo. He also received research funding from Bristol Myers Squibb, Roche-Genentech, Array and travel support from MSD. Claudia Pföhler: Consultancy, speaker fees, travel grants: BMS, MSD, Merck Serono, Roche, Amgen, GSK, Novartis, Sanofi Genzyme, Pierre Fabre, LEO, UCB, Sunpharma. Clinical studies: Novartis, BMS. Lucie Heinzerling: Consultant or advisory role: Amgen, BMS, Curevac, Novartis, Pierre Fabre, Roche, Sanofi, MSD; research funding (to institution): Novartis. Patrick Schummer: honoraria: Bristol-Myers Squibb (BMS); institutional research grant: Novartis; Travel support: Novartis, Lilly and BMS. Thomas Eigentler: Has/had a consultant/advisory role in the last 2 years for Bristol-Myers Squibb (BMS), Roche-Genentech, Merck Sharp & Dohme (MSD), Novartis, Pierre Fabre, Philogen, Sanofi. He also received research funds from Bristol-Myers Squibb, Merck Sharp & Dohme (MSD) and Novartis. Katharina C. Kähler: Serves as consultant to Roche, BMS, MSD, Pierre Fabre and received travel grants and speaker fees from Roche, BMS, MSD, Amgen, Pierre Fabre and Philogen. Julia Tietze: Honoraria from Roche, BMS, MSD, Amgen, Sanofi, Travel support: Pierre Fabre, Novartis, BMS. Georgina V. Long: Is consultant advisor for Aduro Biotech Inc, Amgen Inc, Array Biopharma Inc, Boehringer Ingelheim International GmbH, Bristol-Myers Squibb, Highlight Therapeutics S.L., Merck Sharpe & Dohme, Novartis Pharma AG, QBiotics Group Limited, Regeneron Pharmaceuticals Inc, SkylineDX B.V. All other authors (Felix Kiecker, Raphael Reinhard, Konstantin Drexler, Christopher Cann, Lydia Reinhardt, Carsten Weishaupt, Maria I Fleischer, Leonie Bluhm) declared to have no conflicts of interest., (Copyright © 2021 Elsevier Ltd. All rights reserved.)

Introduction: With the increasing use of checkpoint inhibitors, rare immune-related adverse events (irAE) are being identified. Haematological irAE (hem-irAE) are difficult to treat and have shown high mortality rates. In order to improve side-effect management for these potentially life-threatening events, we analysed frequency, severity and outcomes., Patients and Methods: Patients who developed hem-irAE while being treated with immune checkpoint inhibitors (ICI) therapy were retrospectively identified from 18 international cancer centres., Results: In total, more than 7626 patients treated with ICI were screened, and 50 patients with hem-irAE identified. The calculated incidence amounts to 0.6% and median onset was 6 weeks after the ICI initiation (range 1-128 weeks). Thrombocytopenia and leucopaenia were the most frequent hem-irAE with 34% (17/50) and 34% (17/50), respectively, followed by anaemia 28% (14/50), hemophagocytic lymphohistiocytosis (4% (2/50)), aplastic anaemia (2% (1/50)), acquired haemophilia A (2% (1/50)) and coagulation deficiency (2% (1/50)). Simultaneous thrombocytopenia and neutropenia occurred in two patients, concurrent anaemia and thrombocytopenia in one patient. Other than cessation of ICI (in 60%) and corticosteroids (in 78%), treatment included second-line immunosuppression in 24% of cases. Events resolved in 78% (39/50), while 18% (9/50) had persistent changes, and 2% (1/50) had fatal outcomes (agranulocytosis)., Conclusion: Hem-irAE can affect all haematopoietic blood cell lineages and may persist or even be fatal. Management may require immunosuppression beyond corticosteroids. Although these irAE are rare, treating physicians should be aware, monitor blood counts regularly and promptly act upon detection., Competing Interests: Conflict of interest statement The authors declare the following financial interests/personal relationships, which may be considered as potential competing interests: Rafaela Kramer: NoneZaremba Anne: Received travel support from Novartis, Genzyme and Bristol-Myers Squibb. Alvaro Moreira: Speaker's honoraria from AbbVie, Novartis, Bristol-Myers Squibb, Pfizer and Roche; consultant's honoraria from Almirall. Selma Ugurel: Selma Ugurel declares research support from Bristol Myers Squibb and Merck Serono; speakers and advisory board honoraria from Bristol Myers Squibb, Merck Sharp and Dohme, Merck Serono, Novartis and Roche, and travel support from Bristol Myers Squibb, and Merck Sharp and Dohme. Douglas Johnson: Advisory boards for Array Biopharma, BMS, Catalyst, Iovance, Jansen, Merck, Novartis, and research funding from BMS and Incyte. Jessica C. Hassel: honoraria from BMS, MSD, Roche, Novartis, Pfizer, Sanofi; consultant's honoraria from Pierre Faber, MSD, Sunpharma; science grant from BMS. Martin Salzmann: honoraria and travel grants from Abbvie, Bristol-Myers Squibb (BMS), Merck, Merck Sharp & Dohme (MSD), Novartis and Pfizer. Anja Gesierich: speaker's honoraria from Bristol-Myers Squibb, MSD Sharp and Dohme and Roche; Consultant's honoraria from Amgen, Bristol-Myers Squibb, Novartis, MSD Sharp and Dohme, Pierre Fabre Pharmaceuticals, Pfizer, Roche and Sanofi Genzyme; travel support from Bristol-Myers Squibb, MSD Sharp and Dohme, Novartis, Pierre Fabre Pharmaceuticals and Roche. Clinical studies: Amgen, Array, Bristol-Myers Squibb, GSK, Novartis, Merck, MSD Sharp and Dohme, Pfizer and Roche. Alisonn Weppler: none. Lavinia Spain: Honoraria from Bristol-Myers Squibb for Advisory Boards Carmen Loquai: Advisory board, speakers fee, travel reimbursement: Roche, Pierre Fabre, Novartis, BMS, Merck, MSD, Biontech, Almiral Hermal, Kyowa Kirin, Sun Pharma, Sanofi Milena Dudda: none. Claudia Pföhler: Consultancy, speaker fees, travel grants: BMS, MSD, Merck, Roche, Amgen, GSK, Novartis, Sanofi Genzyme, Pierre Fabre, LEO. Clinical studies: Novartis, BMS. Adriana Hepner: AH is employee of AstraZeneca with stock options in the company, has received honoraria from Novartis and travel expenses from Roche. Georgina V. Long: consultant advisor for Aduro Biotech Inc, Amgen Inc, Array Biopharma inc, Boehringer Ingelheim International GmbH, Bristol-Myers Squibb, Highlight Therapeutics S.L., Merck Sharpe and Dohme, Novartis Pharma AG, QBiotics Group Limited, Regeneron Pharmaceuticals Inc, SkylineDX B.V. Alexander Menzies: advisory board BMS, MSD, Novartis, Roche, Pierre-Fabre, QBiotics Matteo S. Carlino: MSC has served on advisory boards for Bristol-Myers Squibb, MSD, Amgen, Novartis, Pierre Fabre, Roche, Sanofi, Merck, Ideaya, Regeneron, Nektar, Eisai and honoraria from Bristol-Myers Squibb, MSD, Novartis Michael M. Sachse: Speaker fees: Roche, MSD, Novartis Céleste Lebbé: Consultancy, speaker fees, travel grants or research funding: BMS, MSD, Merck, Roche, Amgen, Novartis, Sanofi, Pierre Fabre. Clinical studies: BMS, MSD, Merck, Sanofi, Incyrte, Roche, Amgen, GSK, Curevac, Genentech and Novartis Barouyr Baroudjian: Consultancy, speaker fees, travel grants: BMS, MSD, Novartis, Pierre Fabre Tomohiro Enokida: none. Makoto Tahara: reports grants and personal fees from Ono Pharmaceutical, grants and personal fees from MSD, grants and personal fees from BMS, during the conduct of the study; grants and personal fees from Bayer, grants and personal fees from Eisai, grants and personal fees from Merck serono, personal fees from LOXO, grants and personal fees from Pfizer, grants and personal fees from Rakuten Medical, personal fees from Celgene, personal fees from Amgen, grants and personal fees from Novartis, outside the submitted work. Max Schlaak: Consultancy, speaker fees or travel grants: BMS, MSD, Roche, Kyowa Kirin, Novartis, Sanofi Genzyme, Pierre Fabre, Sun Pharma Kinan Hayani: none. Paul Bröckelmann: PJB declares honoraria and non-financial support by Bristol-Myers Squibb and research funding by Bristol-Myers Squibb and MSD Sharp and Dohme. Friedegund Meier: F.M. has received travel support or/and speaker’s fees or/and advisor’s honoraria by Novartis, Roche, BMS, MSD and Pierre Fabre and research funding from Novartis and Roche. Lydia Reinhardt: none. Philip Friedlander: none. Thomas Eigentler: received fees for advisory boards from Roche, Novartis, MSD, BMS, Sanofi and Philogen Katharina C. Kähler: serves as consultant to Roche, BMS, MSD, Pierre Fabre and received travel grants and speaker fees from Roche, BMS, MSD, Amgen, Pierre Fabre and Philogen. Lisa Zimmer: LZ has received honoraria from Roche, Bristol-Myers Squibb, Merck Sharp and Dohme, Novartis, Pierre Fabre, research funding from Novartis and has served on advisory boards for Bristol-Myers Squibb, Novartis, Pierre Fabre, Sunpharma, Sanofi, Merck Sharp and Dohme; travel support: Bristol-Myers Squibb, Pierre Fabre, Sanofi, Amgen, Novartis, Sunpharma Lucie Heinzerling: Consultancy, speaker fees, travel grants or research funding: BMS, MSD, Merck, Roche, Amgen, Curevac, Novartis, Sanofi, Pierre Fabre. Clinical studies: BMS, MSD, Merck, Roche, Amgen, GSK, Curevac and Novartis., (Copyright © 2021 Elsevier Ltd. All rights reserved.)