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Improved Survival with MEK Inhibition in BRAF-Mutated Melanoma

Open access
Flaherty, Keith T., Robert, Caroline, Hersey, Peter, Nathan, Paul, Garbe, Claus, Milhem, Mohammed, Demidov, Lev V., Hassel, Jessica C., Rutkowski, Piotr, Mohr, Peter, Dummer, Reinhard, Trefzer, Uwe, Larkin, James M.G., Utikal, Jochen, Dreno, Brigitte, Nyakas, Marta, Middleton, Mark R., Becker, Jürgen C., Casey, Michelle, Sherman, Laurie J., Wu, Frank S., Ouellet, Daniele, Martin, Anne-Marie, Patel, Kiran, Schadendorf, Dirk·2012·New England Journal of Medicine

Abstract

BACKGROUND: Activating mutations in serine-threonine protein kinase B-RAF (BRAF) are found in 50% of patients with advanced melanoma. Selective BRAF-inhibitor therapy improves survival, as compared with chemotherapy, but responses are often short-lived. In previous trials, MEK inhibition appeared to be promising in this population. METHODS: In this phase 3 open-label trial, we randomly assigned 322 patients who had metastatic melanoma with a V600E or V600K BRAF mutation to receive either trametinib, an oral selective MEK inhibitor, or chemotherapy in a 2:1 ratio. Patients received trametinib (2 mg orally) once daily or intravenous dacarbazine (1000 mg per square meter of body-surface area) or paclitaxel (175 mg per square meter) every 3 weeks. Patients in the chemotherapy group who had disease progression were permitted to cross over to receive trametinib. Progression-free survival was the primary end point, and overall survival was a secondary end point. RESULTS: Median progression-free survival was 4.8 months in the trametinib group and 1.5 months in the chemotherapy group (hazard ratio for disease progression or death in the trametinib group, 0.45; 95% confidence interval [CI], 0.33 to 0.63; P<0.001). At 6 months, the rate of overall survival was 81% in the trametinib group and 67% in the chemotherapy group despite crossover (hazard ratio for death, 0.54; 95% CI, 0.32 to 0.92; P=0.01). Rash, diarrhea, and peripheral edema were the most common toxic effects in the trametinib group and were managed with dose interruption and dose reduction; asymptomatic and reversible reduction in the cardiac ejection fraction and ocular toxic effects occurred infrequently. Secondary skin neoplasms were not observed. CONCLUSIONS: Trametinib, as compared with chemotherapy, improved rates of progression-free and overall survival among patients who had metastatic melanoma with a BRAF V600E or V600K mutation. (Funded by GlaxoSmithKline; METRIC ClinicalTrials.gov number, NCT01245062.).

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Research works printed but not linked: 12

  1. 10.1016/j.canlet.2009.01.022 · DOI · Paper page
  2. 10.1073/pnas.0711741105 · DOI · Paper page
  3. 10.1038/nature04304 · DOI · Paper page
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  5. Infante JR, Fecher LA, Nallapareddy S, et al. Safety and efficacy results from the first-in-human study of the oral MEK 1/2 inhibitor GSK1120212. Presented at the annual meeting of the American Society of Clinical Oncology, Chicago, June 4–8, 2010. · DOI
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Metadata

Authors
Flaherty, K. T., Robert, C., Hersey, P., Nathan, P., Garbe, C., Milhem, M., Demidov, L. V., Hassel, J. C., Rutkowski, P., Mohr, P., Dummer, R., Trefzer, U., Larkin, J. M. G., Utikal, J., Dreno, B., Nyakas, M., Middleton, M. R., Becker, J. C., Casey, M., Sherman, L. J., Wu, F. S., Ouellet, D., Martin, A.-M., Patel, K., & Schadendorf, D.
Venue
New England Journal of Medicine
Published
2012-07-12
Volume
367
Issue
2
Pages
107-114
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2136474966
Cited by
2,160
References
7
FWCI
96.89
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Improved Survival with MEK Inhibition in BRAF-Mutated Melanoma. https://app.cochat.ai/papers/10.1056/nejmoa1203421
The paper
Flaherty, K. T., Robert, C., Hersey, P., Nathan, P., Garbe, C., Milhem, M., Demidov, L. V., Hassel, J. C., Rutkowski, P., Mohr, P., Dummer, R., Trefzer, U., Larkin, J. M. G., Utikal, J., Dreno, B., Nyakas, M., Middleton, M. R., Becker, J. C., Casey, M., . . . Schadendorf, D. (2012). Improved Survival with MEK Inhibition in BRAF-Mutated Melanoma. New England Journal of Medicine. https://doi.org/10.1056/nejmoa1203421

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.