Annotation Detail

Information
Associated Genes
KRAS
Associated Variants
KRAS EXON 2 MUTATION
KRAS EXON 2 MUTATION
Associated Disease
pancreatic cancer
Source Database
CIViC Evidence
Description
In a retrospective study of 136 pancreatic cancer patients, point mutations in KRAS exon 2 were associated with worse overall survival compared to that of wild-type KRAS (5.8 vs 8.0 months; P = 0.001; multivariate analysis). This difference was largely driven by the subgroup of patients with reduced response to gemcitabine-erlotinib combination therapy (7.5% vs 23.3%) with overall survival of 5.2 vs 9.7 months (N=40 vs 30) compared to those that received other therapies with an overall survival of 7.0 months for both KRAS mutated (N=31) and KRAS wildtype (N=35) patients.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/1219
Gene URL
https://civic.genome.wustl.edu/links/genes/30
Variant URL
https://civic.genome.wustl.edu/links/variants/75
Rating
4
Evidence Type
Predictive
Disease
Pancreatic Cancer
Evidence Direction
Supports
Drug
Gemcitabine,Erlotinib
Evidence Level
B
Clinical Significance
Resistance
Pubmed
21862683
Drugs
Drug NameSensitivitySupported
ErlotinibResitance or Non-Reponsetrue
GemcitabineResitance or Non-Reponsetrue