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Association details:
| Biomarker: | MLL2 mutation |
|---|---|
| Cancer: | HER2 Positive Breast Cancer |
| Drug: | lapatinib (EGFR inhibitor, HER2 inhibitor) |
| Direction: | Sensitive |
Evidence:
Source:
Title:
Predictive Role of TP53, PIK3CA and MLL2 in ER+ HER2+ Breast Bancer: Biomarker Analysis of Neo-ALL-IN [NCT 01275859]
Excerpt:
TP53 (61.9%) and PIK3CA (57.1%) were the two most frequently mutated genes that were inter-correlated (p=0.026). They were associated with unfavorable clinical outcomes, particularly when accompanying PIK3CA mutations at exon 9 in helical domains….Mutations in TP53 and PIK3CA hotspot at exon 9 may be potential negative predictors of ER+HER2+ BC treated with neoadjuvant letrozole and lapatinib, while MLL2 inactivating mutation might confer therapeutic benefit in these patients.
Secondary therapy:
letrozole
DOI:
10.21873/anticanres.14608
