Annotation Detail

Information
Associated Genes
BRAF
Associated Variants
BRAF MUTATION
BRAF MUTATION
Associated Disease
colorectal cancer
Source Database
CIViC Evidence
Description
This was a retrospective clinical study of 100 metastatic colorectal cancer patients who received FOLFOX (oxaliplatin + 5-fluorouracil + folinic acid) first-line therapy alone or with monoclonal antibodies (bevacizumab or cetuximab). It assessed the relationship between BRAF mutation status in primary tumors and response to oxaliplatin-based first-line therapy, as measured by post treatment PFS. Of 100 patients, 94 had wildtype BRAF and 6 had mutations in BRAF—including V600E and D594K. The study found that patients harboring a BRAF mutation were significantly more resistant to oxaliplatin-based first-line therapy than patients with wildtype BRAF (Median PFS: 5.0 and 11. 7 months, respectively; p < .0001).
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/6303
Gene URL
https://civic.genome.wustl.edu/links/genes/5
Variant URL
https://civic.genome.wustl.edu/links/variants/399
Rating
3
Evidence Type
Predictive
Disease
Colorectal Cancer
Evidence Direction
Supports
Drug
Oxaliplatin
Evidence Level
B
Clinical Significance
Resistance
Pubmed
19603024
Drugs
Drug NameSensitivitySupported
OxaliplatinResitance or Non-Reponsetrue