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| Title | Erbitux (cetuximab) FDA Drug Label | ||||||||||||
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| URL | https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=overview.process&ApplNo=125084 | ||||||||||||
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| Molecular Profile | Treatment Approach |
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| Gene Name | Source | Synonyms | Protein Domains | Gene Description | Gene Role |
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| Drug Name | Trade Name | Synonyms | Drug Classes | Drug Description |
|---|---|---|---|---|
| Cetuximab | Erbitux | IMC-C225 | EGFR Antibody 72 | Erbitux (cetuximab) is a monoclonal antibody directed against EGFR, which inhibits signal transduction and cell proliferation (PMID: 28695301). Erbitux (cetuximab) is FDA-approved for use in head and neck squamous cell carcinoma and KRAS wild-type, EGFR-positive colorectal cancer, and in combination with Braftovi (encorafenib) with or without mFOLFOX6 in patients with metastatic colorectal cancer with BRAF V600E (FDA.gov). |
| 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 |
|---|---|---|---|---|---|---|---|
| NRAS K117X | colorectal cancer | resistant | Cetuximab | FDA contraindicated | Actionable | Erbitux (cetuximab) treatment of colorectal cancer patients with NRAS exon 4, codon 117 mutations is contraindicated (FDA.gov). | detail... |
| BRAF V600E | colorectal cancer | sensitive | Cetuximab + Encorafenib + Fluorouracil + Leucovorin + Oxaliplatin | FDA approved - On Companion Diagnostic | Actionable | In a Phase III trial (BREAKWATER) that supported FDA approval, Braftovi (encorafenib) in combination with Erbitux (cetuximab) and mFOLFOX6 significantly improved objective response rate (60.9%, 67/110 vs 40.0%, 44/110, OR 2.443, p=0.0008) compared to standard of care in patients with metastatic colorectal cancer harboring BRAF V600E, with median duration of response of 13.9 vs 11.1 mo, and overall survival was not estimable vs 14.6 mo (HR 0.47) (PMID: 39863775; NCT04607421). | detail... 39863775 detail... detail... |
| NRAS G12X | colorectal cancer | resistant | Cetuximab | FDA contraindicated | Actionable | Erbitux (cetuximab) treatment of colorectal cancer patients with NRAS exon 2, codon 12 mutations is contraindicated (FDA.gov). | detail... |
| NRAS A146X | colorectal cancer | resistant | Cetuximab | FDA contraindicated | Actionable | Erbitux (cetuximab) treatment of colorectal cancer patients with NRAS exon 4, codon 146 mutations is contraindicated (FDA.gov). | detail... |
| NRAS G13X | colorectal cancer | resistant | Cetuximab | FDA contraindicated | Actionable | Erbitux (cetuximab) treatment of colorectal cancer patients with NRAS exon 2, codon 13 mutations is contraindicated (FDA.gov). | detail... |
| NRAS A59X | colorectal cancer | resistant | Cetuximab | FDA contraindicated | Actionable | Erbitux (cetuximab) treatment of colorectal cancer patients with NRAS exon 3, codon 59 mutations is contraindicated (FDA.gov). | detail... |
| NRAS Q61X | colorectal cancer | resistant | Cetuximab | FDA contraindicated | Actionable | Erbitux (cetuximab) treatment of colorectal cancer patients with NRAS exon 3, codon 61 mutations is contraindicated (FDA.gov). | detail... |