Annotation Detail

Information
Associated Genes
BRAF
Associated Variants
BRAF V600
BRAF V600
Associated Disease
colorectal cancer
Source Database
CIViC Evidence
Description
A randomized clinical trial was done with metastatic colorectal cancer (mCRC) patients (50 in the control group, 49 in the experimental group) with BRAF V600 mutations and RAS wild type that were enrolled from December 2014 to April 2016. The patients were randomized into groups with irinotecan and cetuximab with vemurafenib (VIC group) or without (IC group). The VIC group showed an improvement of progression of free survival (HR 0.42, 95% CI: 0.26 to 0.66, p < 0.001) with a median value of 4.4 months compared to 2.0 months for the IC group. In addition, for the VIC group, there was a 16% drug response rate while the IC group had a 4% drug response rate (p-value = 0.08). Some grade 3/4 adverse events were higher in the experimental arm, and skin toxicity and fatigue showed no increase.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/7355
Gene URL
https://civic.genome.wustl.edu/links/genes/5
Variant URL
https://civic.genome.wustl.edu/links/variants/17
Rating
3
Evidence Type
Predictive
Disease
Colorectal Cancer
Evidence Direction
Supports
Drug
Vemurafenib,Cetuximab,Irinotecan
Evidence Level
B
Clinical Significance
Sensitivity/Response
Drugs
Drug NameSensitivitySupported
CetuximabSensitivitytrue
IrinotecanSensitivitytrue
VemurafenibSensitivitytrue