SynthesisBMC cancer2022
PIK3CA mutation status, progression and survival in advanced HR + /HER2- breast cancer: a meta-analysis of published clinical trials.
Synthesis in BMC cancer, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 59 citations in OpenAlex.
- Guidance for Canadian Breast Cancer Practice: National Consensus Recommendations for the Systemic Treatment of Patients with HR+/HER2- Metastatic Breast Cancer 2025.Current oncology (Toronto, Ont.) · 2026Guideline
- SEOM-GEICAM-SOLTI clinical guidelines in advanced breast cancer (UPDATE 2025).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Guideline
- Trial
- Overall Survival with Inavolisib inThe New England journal of medicine · 2025Trial
- Elacestrant in ER+, HER2- Metastatic Breast Cancer with ESR1-Mutated Tumors: Subgroup Analyses from the Phase III EMERALD Trial by Prior Duration of Endocrine Therapy plus CDK4/6 Inhibitor and in Clinical Subgroups.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024Trial
- Promising reference genes for RT-qPCR normalization in breast tumors and normal adjacent tissues.Molecular biology reports · 2026Article
- Review
- Insulin receptor substrate 2 (IRS2) confers resistance to PI3K pathway inhibition in PIK3CA mutant breast cancer.The Journal of biological chemistry · 2026Article
- Evolving First-Line Endocrine Therapy in HR+/HER2- Metastatic Breast Cancer: CDK4/6 Inhibition, Biomarker-Guided Strategies and Emerging Therapeutic Paradigms.Current oncology (Toronto, Ont.) · 2026Review
- PIK3CA mutation in ER-negative and HER2-positive breast cancer with apocrine differentiation.Breast cancer (Tokyo, Japan) · 2026Article
- Beyond CDK4/6 Inhibition: Current Strategies in Hormone Receptor-Positive Metastatic Breast Cancer.Current treatment options in oncology · 2026Review
- Alpelisib and Fulvestrant in PIK3CA-mutated hormone receptor-positive HER2-negative advanced breast cancer included in the German PRAEGNANT trial.Breast cancer research and treatment · 2026Observational
- Pattern of Somatic Mutations in the PIK3CA Oncogene and Their Role as a Potential Prognostic Biomarker in Breast Cancer Patients in Sri Lanka: A Pilot Study.Asian Pacific journal of cancer prevention : APJCP · 2026Article
- Prognostic Biomarkers and Immunotherapeutic Insights of Circulating Tumor DNA Analysis in Advanced Esophageal Squamous Cell Carcinoma From SCRUM-MONSTAR GOZILA Substudy.JCO precision oncology · 2026Article
- Occult metastasis of hormone receptor-positive breast cancer to the ovary: A case report and literature review.Medicine · 2026Review
- Mapping the Kinase Inhibitor Landscape in Canine Mammary Carcinoma: Current Status and Future Opportunities.Animals : an open access journal from MDPI · 2026Review
- Biomarker testing in advanced or metastatic hormone receptor-positive, human epidermal growth factor receptor 2 negative breast cancer: expert recommendations.Therapeutic advances in medical oncology · 2026Review
- Decoding breast cancer: insights into molecular pathways & therapeutic approaches.Discover oncology · 2025Review
- CDK4/6 Inhibitors in Breast Cancer-Who Should Receive Them?International journal of molecular sciences · 2025Review
- Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 6 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundApproximately 40% of hormone receptor positive/human epidermal receptor 2 negative (HR + /HER2-) metastatic breast cancer (mBC) patients harbor phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) mutations. However, associations between PIK3CA mutation status and clinical outcomes among patients with HR + /HER2- mBC have been heterogeneous across clinical trials. This meta-analysis was conducted to survey recently available trial data to assess the prognostic effects of PIK3CA among patients with HR + /HER2- mBC.
methodsRandomized clinical trials reporting progression-free survival (PFS) or overall survival (OS) stratified by PIK3CA status in HR + /HER2- mBC were identified via systematic literature review. Trial arms receiving phosphatidylinositol 3-kinase (PI3K)-targeted therapies were excluded. Meta-regression analysis was used to estimate the association between PIK3CA status and PFS and OS among included studies.
resultsThe analyzed data included 3,219 patients from 33 study arms across 11 trials (PIK3CA mutated: 1,386, wild type: 1,833). PIK3CA mutation was associated with shorter median PFS (difference [95% CI] (months): -1.8 [-3.4, -0.1], I
conclusionsPooling evidence across multiple studies, PIK3CA mutation was associated with shorter PFS and OS. These findings suggest a negative prognostic value of PIK3CA mutations in patients with HR + /HER2- mBC.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.