Gene Variant Detail

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Gene BRAF
Variant G469A
Impact List missense
Protein Effect gain of function
Gene Variant Descriptions BRAF G469A is a hotspot mutation within the protein kinase domain of the Braf protein (UniProt.org). G469A results in increased Braf kinase activity and downstream activation of Erk, and is transforming in cell culture (PMID: 19010912, PMID: 12068308, PMID: 29533785).
Associated Drug Resistance
Category Variants Paths

BRAF mutant BRAF act mut BRAF G469A

BRAF mutant BRAF G469X BRAF G469A

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Transcript NM_004333.6
gDNA chr7:g.140781602C>G
cDNA c.1406G>C
Protein p.G469A
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_001378474.1 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_004333.5 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_001378467.1 chr7:g.140781611C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_004333 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_001354609.1 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_001378468.1 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
XM_005250045 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_001354609.2 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_001378470.1 chr7:g.140778000C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
XM_047420769.1 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38
NM_004333.6 chr7:g.140781602C>G c.1406G>C p.G469A RefSeq GRCh38/hg38

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
BRAF G469A lung non-small cell carcinoma sensitive Trametinib Preclinical - Cell culture Actionable In a preclinical study, Mekinist (trametinib) induced apoptosis and inhibited growth of a non-small cell lung cancer cell line harboring BRAF G469A in culture (PMID: 25706985). 25706985
BRAF G469A lung adenocarcinoma conflicting Trametinib Case Reports/Case Series Actionable In a Phase II trial (NCI-MATCH), Mekinist (trametinib) treatment did not demonstrate clinical activity in patients with advanced solid tumors or lymphoma harboring BRAF fusion or non-V600 mutations, resulted in stable disease in a patient with lung adenocarcinoma harboring BRAF G469A, who remained on therapy for 20.4 months without progression (PMID: 31924734; NCT02465060). 31924734
BRAF G469A lung adenocarcinoma conflicting Trametinib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were sensitive to treatment with Mekinist (trametinib) in culture, demonstrating inhibition of cell growth (PMID: 32540409). 32540409
BRAF G469A invasive bladder transitional cell carcinoma predicted - sensitive Trametinib Case Reports/Case Series Actionable In a clinical case study, Mekinist (trametinib) treatment resulted in a partial response and stable disease lasting more than 18 months in a patient with muscle-invasive urothelial bladder carcinoma harboring BRAF G469A (PMID: 39224677). 39224677
BRAF G469A lung non-small cell carcinoma sensitive Dabrafenib Preclinical - Cell culture Actionable In a preclinical study, Tafinlar (dabrafenib) treatment did not result in significant growth inhibition in a non-small lung cancer cell line harboring BRAF G469A in culture (PMID: 29903896). 29903896
BRAF G469A lung adenocarcinoma resistant Dabrafenib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were resistant to treatment with Tafinlar (dabrafenib) in culture (PMID: 32540409). 32540409
BRAF G469A lung non-small cell carcinoma resistant Vemurafenib Case Reports/Case Series Actionable In a Phase II trial, Zelboraf (vemurafenib) treatment did not result in response in the cohort of 15 non-small cell lung cancer patients with non-V600 BRAF mutations, which included 3 patients harboring BRAF G469A, and enrollment in this cohort was discontinued (PMID: 31959346; NCT02304809). 31959346
BRAF G469A lung non-small cell carcinoma resistant Vemurafenib Preclinical - Cell culture Actionable In a preclinical study, a non-small cell lung cancer cell line harboring BRAF G469A demonstrated resistance to induction of apoptosis by Zelboraf (vemurafenib,) and treatment with Zelboraf (vemurafenib) was not effective in inhibiting growth in culture (PMID: 25706985). 25706985
BRAF G469A lung adenocarcinoma resistant Vemurafenib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were resistant to treatment with Zelboraf (vemurafenib) in culture (PMID: 32540409). 32540409
BRAF G469A Advanced Solid Tumor resistant Vemurafenib Clinical Study - Cohort Actionable In a Phase II trial (MyPathway), Zelboraf (vemurafenib) treatment resulted in an objective response in only 4% (1/23) of patient with advanced solid tumors harboring non-V600 BRAF mutations, 2 of the non-responding patients harbored BRAF G469A (PMID: 29320312; NCT02091141). 29320312
BRAF G469A Advanced Solid Tumor resistant Vemurafenib Preclinical - Cell culture Actionable In a preclinical study, Zelboraf (vemurafenib) did not inhibit MEK and ERK activation in transformed cells over expressing the constitutively dimerized BRAF G469A (PMID: 26343582). 26343582
BRAF G469A colorectal cancer not predictive Cetuximab Case Reports/Case Series Actionable In a clinical study, Erbitux (cetuximab) treatment as a third-line therapy resulted in stable disease with progression-free survival of 2.8 months in a patient with metastatic colorectal cancer harboring BRAF G469A (PMID: 31515458). 31515458
BRAF G469A lung adenocarcinoma resistant Ulixertinib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were resistant to treatment with Ulixertinib (BVD-523) in culture (PMID: 32540409). 32540409
BRAF G469A small intestine carcinoma sensitive Ulixertinib Case Reports/Case Series Actionable In a Phase I trial, treatment with Ulixertinib (BVD-523) resulted in a partial response in two patients harboring BRAF G469A, including one patient with head and neck cancer and one patient with small bowel cancer (PMID: 29247021; NCT01781429). 29247021
BRAF G469A head and neck cancer sensitive Ulixertinib Case Reports/Case Series Actionable In a Phase I trial, treatment with Ulixertinib (BVD-523) resulted in a partial response in two patients harboring BRAF G469A, including one patient with head and neck cancer and one patient with small bowel cancer (PMID: 29247021; NCT01781429). 29247021
BRAF G469A lung adenocarcinoma resistant Tovorafenib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were resistant to treatment with Ojemda (tovorafenib) in culture (PMID: 32540409). 32540409
BRAF G469A melanoma sensitive PLX8394 Preclinical - Cell culture Actionable In a preclinical study, PLX8394 treatment inhibited Erk signaling and reduced proliferation of melanoma cells harboring BRAF G469A in culture (PMID: 30559419). 30559419
BRAF G469A lung adenocarcinoma sensitive PLX8394 Preclinical - Cell line xenograft Actionable In a preclinical study, PLX8394 decreased growth of lung adenocarcinoma cell lines harboring BRAF G469A in culture, and reduced tumor growth in xenograft models (PMID: 27834212). 27834212
BRAF G469A lung non-small cell carcinoma sensitive Dabrafenib + Trametinib Case Reports/Case Series Actionable In a clinical case study, treatment with the combination of Mekinist (trametinib) and Tafinlar (dabrafenib) resulted in a reduction of the liver tumor and stable disease in the brain lesion in a patient with non-small cell lung cancer harboring BRAF G469A (PMID: 32981611). 32981611
BRAF G469A lung non-small cell carcinoma sensitive Dabrafenib + Trametinib Preclinical - Cell culture Actionable In a preclinical study, treatment with the combination of Mekinist (trametinib) and Tafinlar (dabrafenib) resulted in decreased viability and enhanced ERK inhibition compared to either agent alone, in a non-small cell lung cancer cell line harboring BRAF G469A in culture (PMID: 28947956). 28947956
BRAF G469A lung adenocarcinoma sensitive Dabrafenib + Trametinib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were sensitive to the combination treatment of Tafinlar (dabrafenib) and Mekinist (trametinib) in culture, demonstrating inhibition of cell growth (PMID: 32540409). 32540409
BRAF G469A colorectal cancer not predictive Cetuximab + Irinotecan Case Reports/Case Series Actionable In a clinical study, the combination of Erbitux (cetuximab) with Camptosar (irinotecan) as a third-line therapy resulted in stable disease with a PFS of 3.5 months in a patient with metastatic colorectal cancer harboring BRAF G469A (PMID: 31515458). 31515458
BRAF G469A lung non-small cell carcinoma sensitive TAE226 Preclinical Actionable In a preclinical study, TAE226 treatment inhibited proliferation of non-small cell lung carcinoma cell lines harboring BRAF G469A mutation in culture (PMID: 26090892). 26090892
BRAF G469A lung adenocarcinoma resistant Ravoxertinib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were resistant to treatment with Ravoxertinib (GDC-0994) in culture (PMID: 32540409). 32540409
BRAF G469A colorectal cancer not predictive Cetuximab + Fluorouracil + Irinotecan + Leucovorin Case Reports/Case Series Actionable In a clinical study, the combination of Erbitux (cetuximab) with FOLFIRI as a third-line therapy resulted in stable disease with a PFS of 4.4 months in a patient with metastatic colorectal cancer harboring BRAF G469A (PMID: 31515458). 31515458
BRAF G469A lung adenocarcinoma resistant MK-8353 Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were resistant to treatment with MK-8353 in culture (PMID: 32540409). 32540409
BRAF G469A lung adenocarcinoma sensitive Lifirafenib Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were sensitive to treatment with Lifirafenib (BGB-283) in culture, demonstrating inhibition of cell growth (PMID: 32540409). 32540409
BRAF G469A colorectal cancer not predictive Irinotecan + Panitumumab Case Reports/Case Series Actionable In a clinical study, the combination of Vectibix (panitumumab) with Camptosar (irinotecan) as a third-line therapy resulted in stable disease with a PFS of 4.0 months in a patient with metastatic colorectal cancer harboring BRAF G469A (PMID: 31515458). 31515458
BRAF G469A lung non-small cell carcinoma conflicting Trametinib + Vemurafenib Preclinical - Cell culture Actionable In a preclinical study, the addition of Zelboraf (vemurafenib) to treatment with Mekinist (trametinib) resulted in increased proliferation compared to Mekinist (trametinib) alone in a non-small cell lung cancer cell line harboring BRAF G469A in culture (PMID: 29903896). 29903896
BRAF G469A lung non-small cell carcinoma conflicting Trametinib + Vemurafenib Preclinical - Cell culture Actionable In a preclinical study, the combination of Mekinist (trametinib) and Zelboraf (vemurafenib) inhibited growth of a non-small cell lung cancer cell line harboring BRAF G469A in culture, and prevented Mekinist (trametinib)-related activation of AKT and resulted in increased induction of apoptosis compared to either agent alone (PMID: 25706985). 25706985
BRAF G469A lung adenocarcinoma sensitive LXH 254 Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were sensitive to treatment with LXH 254 in culture, demonstrating inhibition of cell growth (PMID: 32540409). 32540409
BRAF G469A lung adenocarcinoma resistant LY3214996 Preclinical - Patient cell culture Actionable In a preclinical study, cells derived from a lung adenocarcinoma patient harboring BRAF G469A were resistant to treatment with LY3214996 in culture (PMID: 32540409). 32540409
BRAF G469A lung non-small cell carcinoma sensitive Encorafenib + Trametinib Preclinical - Cell culture Actionable In a preclinical study, the addition of Braftovi (encorafenib) to treatment with Mekinist (trametinib) resulted in increased growth inhibition in a non-small cell lung cancer cell line harboring BRAF G469A in culture (PMID: 29903896). 29903896
BRAF G469A lung cancer resistant RMC-4550 Preclinical - Cell culture Actionable In a preclinical study, RMC-4550 did not inhibit Erk phosphorylation or proliferation of lung cancer cells harboring BRAF G469A in culture (PMID: 30104724). 30104724
BRAF G469A lung non-small cell carcinoma sensitive PF-07799933 Preclinical - Pdx Actionable In a preclinical study, PF-07799933 treatment resulted in tumor regression in a patient-derived xenograft (PDX) model of non-small cell lung cancer harboring BRAF G469A (PMID: 38691346). 38691346
BRAF G469A Advanced Solid Tumor sensitive IHMT-RAF-128 Preclinical - Cell culture Actionable In a preclinical study, IHMT-RAF-128 inhibited proliferation of a cell line expressing BRAF G469A in culture (PMID: 37164118). 37164118
BRAF G469A lung non-small cell carcinoma sensitive SIJ777 Preclinical - Cell culture Actionable In a preclinical study, SIJ777 inhibited proliferation of a non-small cell lung cancer cell line harboring BRAF G469A in culture (PMID: 33917428). 33917428
BRAF G469A lung sarcomatoid carcinoma sensitive NST-628 Preclinical - Pdx Actionable In a preclinical study, NST-628 treatment resulted in an overall response rate of 69.5% in a panel of patient-derived xenograft (PDX) models of solid tumors harboring RAS-MAPK pathway alterations, including a response in a lung sarcomatoid carcinoma patient-derived xenograft (PDX) model harboring BRAF G469A (PMID: 38588399). 38588399