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BIOMARKER:

PIK3CA mutation

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Other names: PIK3CA, Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha, Phosphoinositide-3-kinase, catalytic, alpha polypeptide, Serine/threonine protein kinase PIK3CA, PtdIns-3-kinase subunit P110-alpha, PI3K-alpha, Phosphatidylinositol-4,5-bisphosphate 3-kinase 110 KDa catalytic subunit alpha, Phosphatidylinositol 3-kinase, Catalytic, 110-KD, alpha, PI3-kinase P110 subunit alpha, PI3-kinase subunit alpha, PtdIns-3-kinase subunit alpha, PI3Kalpha, P110alpha, PI3K
Entrez ID:
Related biomarkers:
Related tests:
1d
"Beyond HER2 overexpression: somatic alterations in HER2 and PI3K genes in HER2-high and HER2-low/TNBC breast cancer. (PubMed, Clin Transl Oncol)
HER2-high and HER2-low/TNBC breast cancers demonstrate distinct clinicopathologic and molecular profiles. Therapy-associated enrichment of PIK3CA mutations and their association with aggressive behavior underscore their prognostic and therapeutic significance in HER2-positive disease. Further studies are needed to clarify their role in guiding personalized treatment strategies.
Journal
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HER-2 (Human epidermal growth factor receptor 2) • TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • PI3K (Phosphoinositide 3-kinases)
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HER-2 positive • TP53 mutation • HER-2 overexpression • PIK3CA mutation • HER-2 positive + HER-2 overexpression
3d
A Case of Hormone Receptor-Positive, HER2-Negative Metastatic Recurrent Breast Cancer Successfully Treated with Capivasertib and Fulvestrant in Late-Line Therapy (PubMed, Gan To Kagaku Ryoho)
In the CAPItello-291 trial, capivasertib and fulvestrant demonstrated efficacy in patients with up to two prior lines endocrine therapy, but its use in late-line settings has not yet been reported. In this article, we report a case of a woman with metastatic recurrent breast cancer who was treated with capivasertib and fulvestrant was used as the late-line treatment, resulting in a progression-free survival of 8 months.
Journal
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HER-2 (Human epidermal growth factor receptor 2) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • PTEN (Phosphatase and tensin homolog)
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HR positive • HER-2 negative • PIK3CA mutation • PTEN mutation • HR positive + HER-2 negative
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fulvestrant • Truqap (capivasertib)
3d
New trial
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HER-2 (Human epidermal growth factor receptor 2) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha)
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HER-2 negative • PIK3CA mutation
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Ibrance (palbociclib) • fulvestrant • Itovebi (inavolisib)
4d
RAS-variant allele frequency as a potential prognostic marker of overall survival in patients with metastatic colorectal cancer. (PubMed, Cancer Treat Res Commun)
This is the first real world evidence of the potential prognostic significance of VAF in mCRC. Patients with low RAS VAF had better survival compared with high VAF counterparts. Presence of low RAS VAF in tumour samples may suggest that patients progress in a manner resembling RAS wild-type tumours.
Journal
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TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • RAS (Rat Sarcoma Virus)
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TP53 mutation • PIK3CA mutation • RAS mutation • RAS wild-type
5d
Molecular characterization of clear cell adenocarcinoma of the urinary bladder. (PubMed, Histopathology)
In summary, we identified a distinct oncogenic pathway in CCA of the urinary bladder, most commonly involving activation of the PI3K/AKT/mTOR pathway through gain-of-function mutations in PIK3CA (74%) and/or KRAS (26%). These tumours frequently harbour loss-of-function mutations in tumour suppressor genes (TP53, SMAD4, RB1 and APC) and point/missense mutations of proto-oncogenes (ERBB2 and MET). Our study also highlights potential therapeutic targets for this aggressive malignancy.
Journal
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HER-2 (Human epidermal growth factor receptor 2) • KRAS (KRAS proto-oncogene GTPase) • TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • RB1 (RB Transcriptional Corepressor 1) • SMAD4 (SMAD family member 4)
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TP53 mutation • KRAS mutation • PIK3CA mutation • MET mutation
7d
Mutational landscape of lung adenocarcinoma in Czechia. (PubMed, Cancer Treat Res Commun)
The data are in line with current literature that targeted treatment is being applied for selected LC patients in CZ. It can be expected that LC patients benefit from therapeutic and other clinical improvements, which however do not reduce the primary importance of anti-smoking campaigns.
Journal
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EGFR (Epidermal growth factor receptor) • KRAS (KRAS proto-oncogene GTPase) • BRAF (B-raf proto-oncogene) • TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • MET (MET proto-oncogene, receptor tyrosine kinase)
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TP53 mutation • BRAF V600E • KRAS mutation • EGFR mutation • PIK3CA mutation • BRAF V600 • EGFR L858R
7d
EPIK-B6: Study Assessing the Efficacy and Safety of Treatment With Alpelisib Plus Fulvestrant in Japanese Men and Postmenopausal Women With Advanced Breast Cancer (clinicaltrials.gov)
P2, N=24, Active, not recruiting, Novartis Pharmaceuticals | Trial completion date: Jul 2026 --> Jan 2027 | Trial primary completion date: Jun 2026 --> Jan 2027
Trial completion date • Trial primary completion date
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HER-2 (Human epidermal growth factor receptor 2) • ER (Estrogen receptor) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha)
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HER-2 negative • PIK3CA mutation
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Piqray (alpelisib) • fulvestrant
7d
A071401: Vismodegib, FAK Inhibitor GSK2256098, Capivasertib, and Abemaciclib in Treating Patients With Progressive Meningiomas (clinicaltrials.gov)
P2, N=124, Recruiting, Alliance for Clinical Trials in Oncology | Trial primary completion date: Jan 2026 --> Jan 2027
Trial primary completion date
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PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • PTEN (Phosphatase and tensin homolog) • CDKN2A (Cyclin Dependent Kinase Inhibitor 2A) • AKT1 (V-akt murine thymoma viral oncogene homolog 1) • CCND1 (Cyclin D1) • CCNE1 (Cyclin E1) • PTCH1 (Patched 1) • CDK4 (Cyclin-dependent kinase 4) • NF2 (Neurofibromin 2) • SMO (Smoothened Frizzled Class Receptor) • CDK6 (Cyclin-dependent kinase 6) • CCND2 (Cyclin D2) • CCND3 (Cyclin D3)
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PIK3CA mutation • PTEN mutation • AKT1 mutation
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Verzenio (abemaciclib) • Truqap (capivasertib) • Erivedge (vismodegib) • GSK2256098
8d
A comparative analysis of mutational profiles between triple-negative breast cancer and non-triple-negative breast cancer. (PubMed, Discov Oncol)
Our study delineates the distinct genomic mutational landscapes between TNBC and non-TNBC cohorts, and reveals somatic interactions, driver genes, mutational signatures and pathway enrichment. These findings highlight the distinct molecular features of TNBC, which may contribute to its aggressive clinical behavior.
Journal • Tumor mutational burden
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TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • TMB (Tumor Mutational Burden) • KMT2C (Lysine Methyltransferase 2C) • MAP3K1 (Mitogen-Activated Protein Kinase Kinase Kinase 1) • TGFB1 (Transforming Growth Factor Beta 1) • GATA3 (GATA binding protein 3)
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TP53 mutation • PIK3CA mutation
8d
Dual-mode temperature-switchable TSCP probes for precise analysis of PIK3CA mutations and VAF. (PubMed, Anal Chim Acta)
This technology represents a significant advancement in molecular diagnostics by integrating mutation detection and clonality assessment in a single assay. Its cost-effective design and modular architecture make it adaptable for various oncogenic mutations, providing clinicians with a powerful tool for therapy selection and tumor heterogeneity monitoring. The platform's capabilities in detecting low-frequency variants suggest promising applications in minimal residual disease monitoring and liquid biopsy analysis, potentially transforming precision oncology practice. Future development will focus on enhancing multiplexing capacity and microfluidic integration to further expand its clinical utility.
Journal
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PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha)
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PIK3CA mutation
8d
Preoperative Detection of Dual TERT Promoter Mutations in Thyroid Cancer: A Case Series. (PubMed, Diagn Cytopathol)
To our knowledge, this is the first report of dual TERTp mutations detected in the preoperative setting in thyroid carcinoma. Clinical correlation with future cases will be of interest, particularly if cases with monoallelic dual TERTp mutations are discovered.
Journal
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TERT (Telomerase Reverse Transcriptase)
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BRAF V600E • PIK3CA mutation • BRAF V600
8d
Characterization of Korean Colorectal Cancer Reveals Novel Driver Gene and Clinically Relevant Mutations. (PubMed, MedComm (2020))
Our findings demonstrate potential driver genes and mutational hotspots associated with CRC patient, characterizing the mutational landscape related to clinical characteristics. Significantly advancing our understanding of CRC's heterogeneous nature, this study lays a solid foundation for devising more efficacious management strategies.
Journal
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KRAS (KRAS proto-oncogene GTPase) • TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • MAP1A (Microtubule Associated Protein 1A)
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KRAS mutation • PIK3CA mutation • KRAS G12D • KRAS G12