Annotation Detail

Information
Associated Genes
ERBB2
Associated Variants
ERBB2 OVEREXPRESSION
ERBB2 OVEREXPRESSION
Associated Disease
pancreatic cancer
Source Database
CIViC Evidence
Description
This is Phase II trial of Trastuzumab and capecitabine as first line treatment in patients with IHC 3+ HER2 expressing advanced pancreatic cancer or cancer with HER2 gene amplification of stage IVB. Total 207 patients could be assessed for HER2 expression. From the 23 patient with IHC 3+ HER2 expression or IHC 2+ and HER2 gene amplification, 17 patients were included in the study and could be assessed for response to the treatment. Contrary to breast and gastric cancer, only 7 out of 11 (64%) patients with IHC 3+ HER2 expression showed gene amplification. PFS rate at 12 weeks was estimated as 23.5%. Median PFS was 65 days. Median OS was 6.9 months. Authors concluded not to recommend further evaluation of anti-HER2 treatment in patients with metastatic pancreatic cancer.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/5955
Gene URL
https://civic.genome.wustl.edu/links/genes/20
Variant URL
https://civic.genome.wustl.edu/links/variants/875
Rating
4
Evidence Type
Predictive
Disease
Pancreatic Cancer
Evidence Direction
Does Not Support
Drug
Capecitabine,Trastuzumab
Evidence Level
B
Clinical Significance
Sensitivity/Response
Pubmed
22374460
Drugs
Drug NameSensitivitySupported
CapecitabineSensitivityfalse
TrastuzumabSensitivityfalse