Resistance to BRAF-targeted therapy in melanoma

BRAF mutations are identified in 40–50% of patients with melanoma. Treatment of these patients with either of two BRAF inhibitors (vemurafenib, dabrafenib) or the MEK inhibitor trametinib is associated with improved clinical benefit (response rate, progression free survival, and overall survival) co...

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Vydáno v:European journal of cancer (1990) Ročník 49; číslo 6; s. 1297 - 1304
Hlavní autoři: Sullivan, Ryan J., Flaherty, Keith T.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Kidlington Elsevier Ltd 01.04.2013
Elsevier
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ISSN:0959-8049, 1879-0852, 1879-0852
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Shrnutí:BRAF mutations are identified in 40–50% of patients with melanoma. Treatment of these patients with either of two BRAF inhibitors (vemurafenib, dabrafenib) or the MEK inhibitor trametinib is associated with improved clinical benefit (response rate, progression free survival, and overall survival) compared with treatment with chemotherapy in three phase III trials. Unfortunately, most patients, including those who experience initial, profound tumour regression, have evidence of disease progression within 6–8months after commencing therapy with one of these agents. The mechanisms of resistance are varied and include activation of alternative signalling pathways as well as reactivating the MAP kinase pathway through alternative means. This review describes relevant aspects of MAP kinase pathway signalling, summarises the clinical data with BRAF and MEK inhibitors, presents the known resistance mechanisms to BRAF inhibitor therapy, and provides some strategies for how resistance may be overcome.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
ObjectType-Review-3
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ISSN:0959-8049
1879-0852
1879-0852
DOI:10.1016/j.ejca.2012.11.019