Annotation Detail

Information
Associated Genes
PIK3CA
Associated Variants
PIK3CA MUTATION
PIK3CA MUTATION
Associated Disease
cancer
Source Database
CIViC Evidence
Description
A set of 474 cell lines from the Cancer Cell Line Encyclopedia was tested for responsiveness to the PI3Kalpha specific inhibitor BYL719 (Alpelisib). In the PIK3CA wild type subroup of cell lines, 22% were assessed as responsive, while in the subgroup of cell lines with PIK3CA mutations, 64% were labeled as responders. 7 patient derived xenografts with PIK3CA mutations (H1047R, E545K, M1043I, C420R, Q546K) were transplanted into mice and treated with BYL719. 6/7 mice responded with strong tumor growth inhibition or regression, while one (H1047R) responded with weak growth inhibition.
Variant Origin
somatic
Variant Origin
Somatic
Evidence URL
https://civic.genome.wustl.edu/links/evidence_items/1402
Gene URL
https://civic.genome.wustl.edu/links/genes/37
Variant URL
https://civic.genome.wustl.edu/links/variants/311
Rating
4
Evidence Type
Predictive
Disease
Cancer
Evidence Direction
Supports
Drug
Alpelisib
Evidence Level
D
Clinical Significance
Sensitivity/Response
Pubmed
24608574
Drugs
Drug NameSensitivitySupported
AlpelisibSensitivitytrue