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Hematol Oncol. 2017 Dec;35(4):890-893. doi: 10.1002/hon.2353. Epub 2016 Sep 19.

Vemurafenib in combination with cobimetinib in relapsed and refractory extramedullary multiple myeloma harboring the BRAF V600E mutation.

Author information

1
Medical Oncology and Hematology, Kantonsspital Graubuenden, Chur, Switzerland.
2
Oncology Centre Hirslanden & Zurich, Zurich, Switzerland.

Abstract

BRAF mutations are present in a variety of cancers and cause constitutive activation of the Ras-Raf-MEK-ERK signaling pathway. In cutaneous malignant melanoma, combined treatment with BRAF and MEK inhibitors is associated with high response rates and has been shown to improve progression free as well as overall survival compared to BRAF inhibition alone. In multiple myeloma, BRAF mutations are detectable only in a minority of patients. Only few data are available regarding the clinical activity of BRAF inhibitors in BRAF-positive multiple myeloma patients, including some anecdotal reports on remarkable responses in individuals being resistant to all other available anti-myeloma treatment approaches. We here present the first report on the combination of vemurafenib and cobimetinib in a young patient with highly resistant and rapidly progressing multiple myeloma harboring the BRAF V600E mutation who achieved a rapid and sustained response to this combination therapy.

KEYWORDS:

BRAF V600E; cobimetinib; multiple myeloma; vemurafenib

PMID:
27641727
DOI:
10.1002/hon.2353
[Indexed for MEDLINE]

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