Molecular Profile Detail

Contact

Missing content? – Request curation!

Request curation for specific Genes, variants, or PubMed publications.

Have questions, comments or suggestions? - Let us know!

Email us at : ckbsupport@jax.org

Profile Name ERBB2 pos PIK3CA mut
Gene Variant Detail

ERBB2 positive (unknown)

PIK3CA mutant (unknown)

Relevant Treatment Approaches

Filtering

  • Case insensitive filtering will display rows where any text in any cell matches the filter term
  • Simple literal full or partial string matches
  • Separate multiple filter terms with a spaces, order doesn't matter (a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page, filtering has no impact on query parameters
  • Use quotes to match a longer phrase which contains spaces "mtor c1483f"

Sorting

  • Generally, the default sort order for tables is set to be first column ascending, however, specific tables may set a different default sort order.
  • Click on any column header arrows to sort by that column
  • Hold down the Shift key and click multiple columns to sort by more than one column, be sure to set ascending or descending order for a given column, before moving on to the next column.

Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
ERBB2 pos PIK3CA mut Her2-receptor positive breast cancer decreased response Trastuzumab Clinical Study - Cohort Actionable In a clinical study, a retrospective analysis of Herceptin (trastuzumab) treatment in ERBB2 (HER2) positive breast cancer patients demonstrated patients harboring a PIK3CA mutation trended towards a decreased response when compared to patients with wild-type PIK3CA (PMID: 28177460). 28177460
ERBB2 pos PIK3CA mut Her2-receptor positive breast cancer predicted - sensitive Neratinib Phase III Actionable In a Phase III trial (ExteNET), Nerlynx (neratinib) treatment resulted in improved 5-year invasive disease-free survival (92.4% vs 84.5%, HR=0.41, p=0.028) and clinical benefit (HR=0.40, p=0.041) compared to placebo in patients with ERBB2 (HER2)-positive early breast cancer who completed trastuzumab-based adjuvant therapy, and harbored PIK3CA amplification (n=61) or mutations (n=210), including H1047R (n=110), E542K (n=18), and E545K/D (n=82) (PMID: 30867034; NCT00878709). 30867034
ERBB2 pos PIK3CA mut Her2-receptor positive breast cancer decreased response Lapatinib + Trastuzumab Phase II Actionable In a Phase II trial, ERBB2-positive breast cancer patients harboring PIK3CA mutations demonstrated lower pathologic complete remission rate (12.5%) compared to those with wild-type PIK3CA (48.4%) after Herceptin (trastuzumab) and Tykerb (lapatinib) combination therapy (PMID: 26245675). 26245675
ERBB2 pos PIK3CA mut Her2-receptor positive breast cancer decreased response Lapatinib + Trastuzumab Clinical Study - Cohort Actionable In a clinical study, a retrospective analysis of the combined treatment, Herceptin (trastuzumab) and Tykerb (lapatinib), in ERBB2 (HER2) positive breast cancer patients demonstrated patients harboring a PIK3CA mutation trended towards a decreased response when compared to patients with wild-type PIK3CA (PMID: 28177460). 28177460
ERBB2 pos PIK3CA mut Her2-receptor positive breast cancer sensitive AT13148 Preclinical - Cell line xenograft Actionable In a preclinical study, AT13148 inhibited tumor growth in a ERBB2 (HER2)-positive human breast cancer cell line xenograft model harboring mutant PIK3CA (PMID: 22781553). 22781553
ERBB2 pos PIK3CA mut Her2-receptor positive breast cancer decreased response Lapatinib Clinical Study - Cohort Actionable In a clinical study, a retrospective analysis of Tykerb (lapatinib) treatment in ERBB2 (HER2) positive breast cancer patients demonstrated patients harboring a PIK3CA mutation trended towards a decreased response when compared to patients with wild-type PIK3CA (PMID: 28177460). 28177460
ERBB2 pos PIK3CA mut Her2-receptor positive breast cancer decreased response Capecitabine + Lapatinib Phase III Actionable In a Phase III trial, Tykerb (lapatinib) and Xeloda (capecitabine) combination treatment resulted in decreased median progression free survival (4.3 vs. 6.4 months), median overall survival (17.3 vs. 27.8 months), and overall response rate(17.1% vs. 39.7%) in ERBB2 (HER2) positive breast cancer patients harboring PIK3CA mutations compared to PIK3CA wild type patients (PMID: 26920887). 26920887
Clinical Trial Phase Therapies Title Recruitment Status