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Region Hovedstaden - en del af Københavns Universitetshospital
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Age favoured overall survival in a large population-based Danish patient cohort treated with anti-PD1 immune checkpoint inhibitor for metastatic melanoma

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BACKGROUND AND PATIENTS: Age-related immune dysfunction (ARID) describes age-associated changes in immunity that may affect the efficacy of immunotherapy with checkpoint inhibitors. We evaluated the efficacy of treatment with ipilimumab (530 patients) or pembrolizumab (562 patients) in a Danish national cohort of metastatic melanoma patients.

RESULTS: We confirmed known prognostic biomarkers related to treatment with ipilimumab and found no impact of age on survival or progression-free survival. In patients treated with pembrolizumab, we also confirmed known prognostic biomarkers. Overall survival (OS) and progression-free survival was significantly higher in patients aged between 70 and 80 years compared with younger patients. In multivariate analysis with OS as end-point, age was shown to be an independent good prognostic biomarker in these patients. Survival in patients aged above 80 years was not better than in younger patients, probably because of increase in significant comorbidity.

CONCLUSIONS: Our analyses have revealed a higher survival rate when using drugs targeting PD1 in metastatic melanoma patients between the age of 70 and 80 years. ARID does not seem to negatively impact the efficacy of treatment with checkpoint inhibitors in metastatic melanoma patients. Despite these encouraging data for elderly patients, clinicians still need to carefully consider the higher risk of more serious outcomes of the immune-related adverse events in the elderly patient population, before deciding to treat old patients with checkpoint inhibitors.

OriginalsprogEngelsk
TidsskriftEuropean journal of cancer (Oxford, England : 1990)
Vol/bind119
Sider (fra-til)122-131
Antal sider10
ISSN0959-8049
DOI
StatusUdgivet - sep. 2019

Bibliografisk note

Copyright © 2019 Elsevier Ltd. All rights reserved.

ID: 58521247