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Updated: Jun 8, 2025

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
07:49

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods

Published on: July 17, 2019

6.0K

Targeting RAF1 gene fusions with MEK inhibition in metastatic melanoma

Karam Khaddour1,2,3, Rizwan Haq1,2,3, Elizabeth I Buchbinder1,2,3

  • 1Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, United States.

The Oncologist
|November 6, 2024
PubMed

Insights

RAF1 gene fusions in melanoma patients may respond to targeted therapy. MEK inhibitors show anti-tumor activity, suggesting their use for patients with RAF1 gene fusions.

Area of Science:

  • Oncology
  • Genetics
  • Pharmacology

Background:

  • The clinical significance of gene fusions in melanoma remains unclear.
  • Preclinical data suggests RAF1 gene fusions may be a target for therapy.

Purpose of the Study:

  • To investigate the clinical relevance and therapeutic potential of RAF1 gene fusions in melanoma.
  • To evaluate the efficacy of targeted therapy in patients with melanoma harboring RAF1 gene fusions.

Main Methods:

  • Retrospective review of 1268 melanoma patients with targeted sequencing data.
  • Identification and clinicopathologic characterization of 9 cases with RAF1 gene fusions.
  • Consolidation of data with published reports on targeted therapy for RAF1 gene fusions.

Main Results:

  • Nine cases of melanoma with RAF1 gene fusions were identified.
  • Two patients treated with MEK inhibitors experienced favorable outcomes, including one durable response.
  • Pooled data indicates anti-tumor activity of single-agent MEK inhibition.

Conclusions:

  • Single-agent MEK inhibition demonstrates anti-tumor activity in melanoma patients with RAF1 gene fusions.
  • Patients with RAF1 gene fusions should be considered for MEK inhibitor therapy.
Keywords:
RAF1 gene fusionMEK inhibitionmelanomatargeted therapy

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