Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2014 Jul 15;111(2):292-9.
doi: 10.1038/bjc.2014.287. Epub 2014 Jun 10.

Correlation of BRAF and NRAS mutation status with outcome, site of distant metastasis and response to chemotherapy in metastatic melanoma

Affiliations

Correlation of BRAF and NRAS mutation status with outcome, site of distant metastasis and response to chemotherapy in metastatic melanoma

M S Carlino et al. Br J Cancer. .

Abstract

Background: The prognostic significance of BRAF and NRAS mutations in metastatic melanoma patients remains uncertain, with several studies reporting conflicting results, often biased by the inclusion of patients treated with BRAF and MEK (MAPK) inhibitors. We therefore interrogated a historical cohort of patients free of the confounding influence of MAPK inhibitor therapy.

Methods: Patients with available archival tissue first diagnosed with metastatic melanoma between 2002 and 2006 were analysed. Mutational analysis was performed using the OncoCarta Panel. Patient characteristics, treatment outcome and survival were correlated with BRAF/NRAS mutation status.

Results: In 193 patients, 92 (48%) melanomas were BRAF-mutant, 39 (20%) were NRAS-mutant and 62 (32%) were wild-type for BRAF/NRAS mutations (wt). There was no difference in response to chemotherapy based on mutation status (35-37%). The distant disease-free interval (DDFI) was significantly shorter in patients with wt melanoma (27.9 months vs 35.1 for BRAF and 49.1 for NRAS) although this was not significant in multivariate analysis. Survival from stage IV melanoma diagnosis was not significantly different based on mutation status. The DDFI was significantly shorter in patients with BRAF(V600K/R) versus BRAF(V600E) melanoma in univariate and multivariate analyses.

Conclusions: BRAF and NRAS mutation status does not influence survival in metastatic melanoma.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Impact of mutation status on DDFI and survival from stage IV melanoma. (A) DDFI from culprit primary melanoma based on BRAF and NRAS status. (B) Survival from diagnosis of stage IV melanoma based on BRAF and NRAS mutation status. (C) DDFI from culprit primary melanoma based on BRAF mutation genotype. (D) Survival from diagnosis of stage IV melanoma based on BRAF mutation genotype.

Similar articles

Cited by

References

    1. Akslen LA, Angelini S, Straume O, Bachmann IM, Molven A, Hemminki K, Kumar R. BRAF and NRAS mutations are frequent in nodular melanoma but are not associated with tumor cell proliferation or patient survival. J Invest Dermatol. 2005;125 (2):312–317. - PubMed
    1. Amanuel B, Grieu F, Kular J, Millward M, Iacopetta B. Incidence of BRAF p.Val600Glu and p.Val600Lys mutations in a consecutive series of 183 metastatic melanoma patients from a high incidence region. Pathology. 2012;44 (4):357–359. - PubMed
    1. Ascierto PA, Schadendorf D, Berking C, Agarwala SS, van Herpen CM, Queirolo P, Blank CU, Hauschild A, Beck JT, St-Pierre A, Niazi F, Wandel S, Peters M, Zubel A, Dummer R. MEK162 for patients with advanced melanoma harbouring NRAS or Val600 BRAF mutations: a non-randomised, open-label phase 2 study. Lancet Oncol. 2013;14 (3):249–256. - PubMed
    1. Brissy S, Gaudy-Marqueste C, Mallet S, Monestier S, Hesse S, Koeppel M-C, Rojat-Habib M-C, Nanni I, Loundou A, Lh Ouafik, Bonnet N, Richard M-A, Grob JJ. BRAF mutation as a pejorative marker in metastatic melanoma. J Clin Oncol. 2012;30 (suppl):abstr 8555.
    1. Bucheit AD, Syklawer E, Jakob JA, Bassett RL, Jr, Curry JL, Gershenwald JE, Kim KB, Hwu P, Lazar AJ, Davies MA. Clinical characteristics and outcomes with specific BRAF and NRAS mutations in patients with metastatic melanoma. Cancer. 2013;119 (21):3821–3829. - PubMed

Publication types

MeSH terms