Variant · Snv
PIK3CA Q75E
CI-VAR-00003589Explore in graph →CIViC 5043
Curated evidence
Evidence by cancer (2 items)
Grouped by cancer context first, then therapy. The same variant can be sensitizing in one cancer and irrelevant in another — contexts are never merged. 50 items per page; a cancer group may continue on the next page.
- Source
- CIViC — Clinical Interpretation of Variants in Cancer
- Dataset
- CIViC evidence items
- Version
- civic-2026-09-08
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Evidence
- expert curation
- License
- CC0 1.0
- PMID
- 34779417
- Run
- ING-CIVIC-20260908-000001
| Molecular profile | Therapy | Type | Level | Direction · significance | Rating (1–5) | Status | Evidence | Source |
|---|---|---|---|---|---|---|---|---|
| Squamous Cell Carcinoma2 | ||||||||
| PIK3CA N345K OR PIK3CA M1043V OR PIK3CA Q75E | Alpelisib | Predictive | D | Supports Sensitivity Response | 2 | submitted | EID12160In this pre-clinical study, the role of the non-canonical PIK3CA mutation PIK3CA Q75E was evaluated. The expression of pKAT/total AKT was compared across canonical PIK3CA E545K mutation, non-canonical… (full text at CIViC) PMID 34779417 · Jin et al., 2021 · Open in CIViC | civic |
| PIK3CA Q75E | Alpelisib | Predictive | C | Supports Sensitivity Response | 2 | submitted | EID12159A 55-year-old man with HNSCC harbouring PIK3CA Q75E (non-canonical) mutation was previously treated and responded to concurrent chemoradiation therapy (CRT) with cisplatin, however, experienced local … (full text at CIViC) PMID 34779417 · Jin et al., 2021 · Open in CIViC | |
ClinVar
Clinical significance (0)
ClinVar interpretations are shown as structured records — significance, review status, star rating, conditions — never flattened into one word.
Data not yet available