Abstract
Purpose
Immune checkpoint inhibitors (ICI) and BRAF and MEK inhibitors (BMi) have improved survival in metastatic melanoma (MM). However, the experience of long-term responders remains undescribed. This study characterised survivorship issues faced by long-term responders to ICI or BMi.
Methods
Patients with MM, aged ≥ 18 years old, ≥ 6 months post-ICI or BMi initiation with an objective response or stable disease. A 72-question survey assessed physical and psychological effects, impact on lifestyle, access to information, satisfaction with care, and availability of supports.
Results
One hundred and five of 120 (88%) patients completed the survey (ICI 69/BMI 36). For the ICI cohort, 39 (57%) were receiving ongoing treatment, 17 ceased due to toxicity and 13 due to a sustained response. For the BMi cohort, 31 (85%) were receiving ongoing treatment, 4 ceased due to toxicity and 1 due to a sustained complete response. At data cut-off on 18 December 2018, median PFS (range) was 2.5 years (1.3–8.5) for ICI and 3.1 years (0.6–7.3) for BMi. Long-term toxicities included dry/itchy skin (ICI 51, 74%/ BMi 25, 69%), arthralgias (ICI 30, 58%/ BMi 23, 64%) and fatigue (ICI 62, 90%/ BMi 33, 92%). Psychological morbidity was common, including anxiety awaiting results (ICI 50, 72%/ BMi 29, 81%), fear of melanoma recurring or progressing (ICI 56, 81%/ BMi 31, 86%) or death (ICI 44, 64%/ BMi 26, 72%).
Conclusion
MM survivors experience chronic treatment toxicities and frequently report psychological concerns.
Implications for Cancer Survivors
Survivors may benefit from discussions regarding long-term toxicities and tailored psychological supports.




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Acknowledgements
We would like to thank the Skin and Melanoma Service at Peter MacCallum Cancer Centre for their support with patient enrolment and data collection, and the Melanoma Research Victoria Consumer Group for reviewing the questionnaire.
Funding
This work was financially supported by a Research Grant from the Skin and Melanoma Service, Peter MacCallum Cancer Centre.
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CK has received travel assistance from Roche. DM has received honoraria and consultancy fees from Bristol-Myers Squibb, MSD and Novartis, and institutional research funding from Merck. SS has received honoraria and consultancy fees from Bristol-Myers Squibb and Merck. MJ has received travel assistance from Roche. All remaining authors have declared no conflicts of interest.
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Lai-Kwon, J., Khoo, C., Lo, S. et al. The survivorship experience for patients with metastatic melanoma on immune checkpoint and BRAF-MEK inhibitors. J Cancer Surviv 13, 503–511 (2019). https://doi.org/10.1007/s11764-019-00770-0
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DOI: https://doi.org/10.1007/s11764-019-00770-0
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