Annotation Detail

Information
Associated Genes
BRAF
Associated Variants
BRAF p.Val640Glu (p.V640E) ( ENST00000288602.11, ENST00000496384.7, ENST00000644969.2, ENST00000646891.2 )
BRAF p.Val640Glu (p.V640E) ( ENST00000288602.11, ENST00000496384.7, ENST00000644969.2, ENST00000646891.2 )
Associated Disease
colorectal cancer
Source Database
CIViC Evidence
Description
Patients with completely resected colorectal adenocarcinoma (Stage II-III) were treated with fluorouracil and leucovorin +/- ironotecan. Of the 1,307 FFPE samples tested, V600E was observed in 31 Stage II samples (7.6%) and 72 Stage III samples (7.9%). V600E was prognostic for overall survival, but not for relapse-free survival, in patients with stages II and III combined, and in stage III alone. For all MSI low and stable tumors, BRAF V600E positive samples had a hazard ratio (HR) of 2.19 (95% CI, 1.43 to 3.37, P=0.00034). For all samples in the cohort (MSI-H and MSI-L) BRAF V600E positive samples had a 1.66 HR (95% CI, 1.15 to 2.40, P=0.0069). The authors note prognostic value for BRAF V600E, especially in non-MSI high tumors.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/7156
Gene URL
https://civic.genome.wustl.edu/links/genes/5
Variant URL
https://civic.genome.wustl.edu/links/variants/12
Rating
4
Evidence Type
Prognostic
Disease
Colorectal Cancer
Evidence Direction
Supports
Evidence Level
B
Clinical Significance
Poor Outcome
Pubmed
20008640
Drugs