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01-06-2020 | Metastasis | Skin Cancer (T Ito, Section Editor)

Current Treatment of Melanoma Brain Metastasis

Authors: Anupam Rishi, MD, Hsiang-Hsuan Michael Yu, MD, ScM

Published in: Current Treatment Options in Oncology | Issue 6/2020

Opinion statement

With greater understanding of underlying biology and development of effective BRAF-targeted therapy and immunotherapy, along with remarkable advances in local treatment such as stereotactic radiosurgery, melanoma brain metastasis (MBM) is witnessing continually improving outcome, with 1-year overall survival rate approaching 85%. Given disease complexity and myriad treatment options, all patients with MBM should ideally be evaluated in a multidisciplinary setting to allow an individualized treatment approach based on prognostic groups, molecular classification, number and size of brain metastasis, and performance status. With improving outcome, pendulum has now swayed to focus more on effective treatment modalities with minimal neurological toxicity while maintaining quality of life. Surgery is usually considered in symptomatic and large MBMs, while stereotactic radiosurgery considered in 1–4 lesions, and now also being explored for up to 15 brain metastases for improved local control. The role of whole brain radiotherapy is diminishing given its neurocognitive toxicities and is reserved for patients with diffuse brain involvement. Cytotoxic chemotherapy has largely been ineffective without evidence for survival benefit. Immune checkpoint inhibitors have become the cornerstone of management for melanoma brain metastasis with durable intracranial tumor control and excellent toxicity profile. For patients with asymptomatic MBMs, ipilimumab and nivolumab have shown intracranial response near 60% and provides comparable clinical benefit in MBMs as for extracranial metastases. For patients with driver BRAF mutation, BRAFi-/MEKi-targeted agents are proven to be effective in MBM with high rate intracranial responses (44–59%). However, the durability of intracranial responses induced by BRAFi/MEKi seems to be shorter than that of extracranial disease. Emerging data support novel combination of systemic therapy and stereotactic radiosurgery, which appears to be safe and effective; however, potential benefits and risks should be evaluated prospectively. Promising ongoing trials will further expand therapeutic evidence in MBM, and patients should be encouraged to participate in clinical trials.

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Title: Current Treatment of Melanoma Brain Metastasis
Authors: Anupam Rishi, MD
Hsiang-Hsuan Michael Yu, MD, ScM
Publication date: 01-06-2020
Publisher: Springer US
Keywords: Metastasis
Melanoma
Melanoma
Systemic Therapy
Targeted Therapy
Published in: Current Treatment Options in Oncology / Issue 6/2020
Print ISSN: 1527-2729
Electronic ISSN: 1534-6277
DOI: https://doi.org/10.1007/s11864-020-00733-z

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Keynote webinar | Spotlight on antibody–drug conjugates in cancer