Changes in scanographic bone mineral density in melanoma patients treated with immunotherapy: a new irAE from real-life data.

Publication date: Jul 09, 2025

The use of immune checkpoint inhibitors (ICIs) is increasingly important in melanoma management. While ICIs are associated with immune-related adverse events (irAEs), little is known about skeleton irAEs and they are felt to be poorly described. We conducted a real-life, retrospective cohort study to monitor bone mineral density (BMD) evolution over 2 years using routine Computed Tomography (CT) in melanoma patients treated with ICIs and to identify associated factors. This single-center study included 165 patients (mean age: 65 years; 44. 2% women) treated with ICIs between 2014 and 2023. BMD was measured at baseline (T0), 1 year (T1), and 2 years (T2) on L1 vertebrae. Vertebral fractures were assessed on sagittal slices. Paired t-tests compared BMD values at the different time points, and we analyzed risk factors for BMD changes with regression models. BMD significantly decreased over 2 years (mean difference: 14. 02 Hounsfield Units (HU), 95% CI 10. 31-17. 74, p 

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Concepts Keywords
65years Aged
Ct Aged, 80 and over
Immunotherapy Bone Density
Models Bone mineral density
Skeleton Female
Humans
Immune Checkpoint Inhibitors
Immune Checkpoint Inhibitors
Immune-checkpoint inhibitors
Immune-related adverse events
Immunotherapy
Immunotherapy
Male
Melanoma
Melanoma
Middle Aged
Osteoporosis
Retrospective Studies
Risk Factors
ROI
Tomography, X-Ray Computed
Vertebral fracture

Semantics

Type Source Name
disease MESH melanoma
pathway KEGG Melanoma
disease MESH osteoporosis

Original Article

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