#PIK3CA
This review explores the #PI3K signaling pathway and its role in reshaping #CellSignaling, #MetabolicProcesses, and the #TumorMicroenvironment, highlighting emerging #therapeutic strategies for #PIK3CA-mutant #Tumors. #medsky

#OpenAccess: www.sciencedirect.com/science/arti...
November 8, 2025 at 12:37 PM
Months later, after chemo, surgery removes the tumor.

Another sequence done.

KRAS mutation gone. New PIK3CA mutation appears.

Same patient. Different tumor. This isn't magic—it's evolution.
November 7, 2025 at 2:15 PM
In the INAVO120 trial, inavolisib+palbociclib-fulvestrant improved PFS in PIK3CA-mutated, HR+HER2- advanced breast cancer vs placebo+palbociclib-fulvestrant. PMID:40454641, N Engl J Med 2025, @NEJM https://doi.org/10.1056/NEJMoa2501796 #Medsky #Pharmsky #RNA #ASHG #ESHG 🧪
https://doi.org/10.1056/NEJMoa2501796
No description available
doi.org
November 3, 2025 at 1:10 AM
Drug repurposing in PIK3CA-related overgrowth spectrum: breakthroughs from overgrowth syndromes to kidney disease - Kidney International www.kidney-international.org/article/S008...
Drug repurposing in PIK3CA-related overgrowth spectrum: breakthroughs from overgrowth syndromes to kidney disease
PI3Kα is a ubiquitous lipid kinase that transduces extracellular growth, proliferation and metabolism signals. Genes involved in the PI3Kα signaling pathway are frequently mutated in cancer. Apart fro...
www.kidney-international.org
November 2, 2025 at 5:42 PM
Review: Drug repurposing in PIK3CA-related overgrowth spectrum: breakthroughs from overgrowth syndromes to kidney disease
#openaccess
#nephsky
Drug repurposing in PIK3CA-related overgrowth spectrum: breakthroughs from overgrowth syndromes to kidney disease
PI3Kα is a ubiquitous lipid kinase that transduces extracellular growth, proliferation and metabolism signals. Genes involved in the PI3Kα signaling pathway are frequently mutated in cancer. Apart…
www.kidney-international.org
November 1, 2025 at 6:01 PM
Shigehira Saji, MD, PhD, shares final OS data from EMERALD in 1L HER2+ #BreastCancer.

💊 Eribulin or taxane + trastuzumab + pertuzumab
📈 Median OS >6 years, similar across arms
🧬 PIK3CA = poor prognosis, no impact on treatment effect
🎥 buff.ly/R9sZAVk

#BCSM #TrialUpdate #CTSM #ImmunoOnc #ESMO25
EMERALD: eribulin plus dual HER2 blockade in first-line HER2+ breast cancer - VJOncology
Shigehira Saji, MD, PhD, Fukushima Medical University, Fukushima, Japan, comments on discusses final survival results from the EMERALD study (NCT03264547)...
buff.ly
November 1, 2025 at 9:01 AM
PI3Kα inhibitor and degrader inavolisib can co-opt FGFR2 to enhance responses in patients with PIK3CA-mutated solid tumors and in preclinical models aacrjournals.org/clincancerre... #hvhebron #onco [Text complet]
PI3Kα inhibitor and degrader inavolisib can co-opt FGFR2 to enhance responses in patients with PIK3CA-mutated solid tumors and in preclinical models
Abstract. Background: PIK3CA mutations frequently drive solid tumors, particularly hormone receptor-positive (HR+) breast cancer. Inavolisib, an ATP-competitive p110α inhibitor, also promotes the degr...
aacrjournals.org
October 30, 2025 at 3:22 PM
Today is the final webinar in our series on molecular testing for HR+/HER- breast cancer. We'll show how specific genomic alterations (e.g., PIK3CA & ESR1 variants) can guide personalized treatment strategies and improve outcomes.

https://educate.amp.org/local/catalog/view/product.php?productid=577
October 30, 2025 at 1:00 PM
Aspirin may reduce cancer recurrence in patients with *PIK3CA* mutations and lower certain cancer risks, but overall evidence for cancer prevention or survival is mixed and more trials are needed. View in Timelines
October 29, 2025 at 2:01 PM
TODAY is the 2nd webinar in our free series on concepts in molecular testing for HR+/HER- breast cancer. We’ll focus on evaluating assay performance in molecular laboratories for ESR1, PIK3CA, AKT1 & PTEN mutations in breast cancer
https://educate.amp.org/local/catalog/view/product.php?productid=577
October 27, 2025 at 1:00 PM
#GeparPiPPa #GBG105 investigates #neoadjuvant #endocrine therapy in combination with #trastuzumab and #pertuzumab, with or without the #PI3K inhibitor #inavolisib, in patients with HER2-positive, HR-positive, PIK3CA-mutated primary breast cancer.
Learn more about the study www.gbg.de/en/trials/ge...
GeparPiPPa
Phase II trial comparing neoadjuvant endocrine therapy in combination with the PI3K-Inhibitor Inavolisib
www.gbg.de
October 24, 2025 at 3:38 PM
Oct. 30: the final webinar in our FREE series on concepts in molecular testing for HR+/HER- breast cancer, showing how specific genomic alterations (e.g., PIK3CA & ESR1 variants)can guide treatment strategies & improve outcomes.

https://educate.amp.org/local/catalog/view/product.php?productid=577
October 24, 2025 at 1:01 PM
#ArticleinPress: Comparative Performance of a Targeted Next-Generation Sequencing Assay Against Multiplexed Digital PCR Assays in Detecting ERBB2, ESR1, and PIK3CA Mutations in Plasma Circulating Cell-Free DNA from Liquid Biopsies.

Full text: https://loom.ly/YZGyEqc
October 23, 2025 at 7:38 PM
Oct. 27 is the second webinar in our free series on concepts in molecular testing for HR+/HER- breast cancer, focused on evaluating assay performance in molecular laboratories for ESR1, PIK3CA, AKT1& PTEN mutations in breast cancer
https://educate.amp.org/local/catalog/view/product.php?productid=577
October 23, 2025 at 1:01 PM
Thrilled to welcome our first plenary speaker Mariona Graupera @grauperalab.bsky.social - beautiful work on endothelial cell plasticity in obesity and PIK3CA-driven vascular malformations
October 23, 2025 at 12:38 AM
#PostTest Q2️⃣ #TumorBoardTuesday

🧐A 75yo♀️w/ ER+/HER2- PIK3CA+ mBC starts 2L Tx w/alpelisib + fulvestrant. Baseline A1C = 6.1 & BMI = 33. What steps can limit risk for severe hyperglycemia❓

1) Labs QW x 2, then Qmonth
2) Baseline A1C, then Q3 months
3) Consider metformin premed
4) All of the above
Integrity CE
Learn more about the
integrityce.com
October 22, 2025 at 1:25 AM
🧐 A 75yo ♀️w/ ER+/HER2- PIK3CA+ mBC is starting 2L therapy with alpelisib + fulvestrant. Baseline A1C is 6.1 and BMI is 33. What steps can limit risk for severe hyperglycemia❓
October 22, 2025 at 1:06 AM
11/18 #TumorBoardTuesday
👩🏻‍🏫Mini Tweetorial 6🏫

⬆️ Elacestrant benefited all subgroups including: 🦴only, 🫁 visceral mets, > 3 mets
⬆️ Elacestrant benefited all🧬subgroups: ✔️ESR1+PIK3CA, ✔️ESR1+TP53, ✔️ESR1+HER2-low
🤢 Most common AE: N/V
ASCO Publications
ascopubs.org
October 22, 2025 at 12:45 AM
8/18 #TumorBoardTuesday
Back to our case🔎

👉 Everolimus + fulvestrant is not favored given the more targeted approach with Capivasterib for the PIK3CA mutation
✅ Tolerated therapy well with mild rash at start of treatment that resolved with antihistamines
October 22, 2025 at 12:38 AM
8/18 #TumorBoardTuesday
Back to our case🔎

👩‍🦳 Patient received Capivasertib + Fulvestrant due to PIK3CA mutation.
👉 Not yet considered endocrine resistant so would not move onto capecitabine, sacituzumab
👉 Tumor is HER2 negative so no role for trastuzumab deruxtecan
October 22, 2025 at 12:38 AM
7/18 #TumorBoardTuesday
👩🏻‍🏫Mini Tweetorial 4🏫

💊Several FDA approved PIK3CA-inhibitors: Capivasertib or Alpelisib or Inalvosalib
🤔 When and how do you PIK one of the PIK3CA of the 3 available?

📎 pubmed.ncbi.nlm.nih.gov/33246021/
Alpelisib plus fulvestrant for PIK3CA-mutated, hormone receptor-positive, human epidermal growth factor receptor-2-negative advanced breast cancer: final overall survival results from SOLAR-1 - PubMed
NCT02437318.
pubmed.ncbi.nlm.nih.gov
October 22, 2025 at 12:38 AM
7/18 #TumorBoardTuesday
👩🏻‍🏫Mini Tweetorial 4🏫

💊Several FDA👍PIK3CA-inhibitors: Capivasertib or Alpelisib or Inalvosalib
🤔 When and how do you PIK one of the PIK3CA of the 3 available?
✌️Alpelisib & Capivasertib are approved in 2nd line mER+ BC combined with fulvestrant
🔎 NGS results, Baseline A1C
October 22, 2025 at 12:38 AM
7/18 #TumorBoardTuesday
👩🏻‍🏫Mini Tweetorial 4🏫

💊Several FDA👍PIK3CA-inhibitors: Capivasertib or Alpelisib or Inalvosalib
🤔 When and how do you PIK one of the PIK3CA of the 3 available?
☝️Inavolisib+Fulvestrant+Palbo is approved for 1st line mER+ BC after recurrence on/after adjuvant ET therapy
October 22, 2025 at 12:38 AM
EMERALD Con't
⬆️ PFS: ✔️ESR1+PIK3CA, ✔️ESR1+TP53, ✔️ESR1+HER2-low
🤢 Common AE nausea, vomiting

📎Bidard et al. Elacestrant vs standard endocrine therapy for estrogen receptor-positive human epidermal growth factor receptor 2-neg advanced breast cancer. JCO. 2022.

Link: ascopubs.org/doi/10.1200/...
Elacestrant (oral selective estrogen receptor degrader) Versus Standard Endocrine Therapy for Estrogen Receptor–Positive, Human Epidermal Growth Factor Receptor 2–Negative Advanced Breast Cancer: Resu...
PURPOSEPatients with pretreated estrogen receptor (ER)–positive/human epidermal growth factor receptor 2 (HER2)–negative advanced breast cancer have poor prognosis. Elacestrant is a novel, oral select...
ascopubs.org
October 22, 2025 at 12:36 AM
#tumorboardtuesday

Any subtle differences in outcomes based on the specific mutation identified
AKT vs. PTEN vs. PIK3CA❓
October 22, 2025 at 12:29 AM