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PMID | (36419902) | ||||||||||||
Authors | Pasau T, Wauters E, Wauters I, Duplaquet F, Pirard L, Pop-Stanciu C, D'Haene N, Dupont M, Vander Borght T, Rondelet B, Ocak S | ||||||||||||
Title | Case report: BRAF A598-T599insV mutation as a potential resistance mechanism to alectinib in ALK-rearranged lung adenocarcinoma. | ||||||||||||
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Abstract Text | Anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitors (TKIs) have improved the prognosis of advanced-stage non-small cell lung cancer (NSCLC) with ALK rearrangement, but resistance mechanisms limit their efficacy. We describe the case of a 63-year-old man with a stage cIVA ALK-rearranged lung adenocarcinoma who developed a BRAF A598-T599insV mutation as a potential resistance mechanism to alectinib, a second-generation ALK TKI. He was treated with an association of BRAF and MEK inhibitors but death occurred two months after treatment initiation in a context of tumor progression and toxicity. Based on this first report of BRAF A598-T599insV mutation occurring in lung cancer, we discuss resistance mechanisms to ALK TKIs, implications of BRAF mutation in NSCLC, and BRAF A598-T599insV mutation in other cancers. |
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Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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EML4 - ALK BRAF A598_T599insV | lung adenocarcinoma | predicted - resistant | Alectinib | Case Reports/Case Series | Actionable | In a clinical case study, a lung adenocarcinoma patient harboring EML4-ALK progressed after an initial response to Alecensa (alectinib) and was found to have acquired BRAF A598_T599insV (PMID: 36419902). | 36419902 |