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PIK3CA Biological Pathways Reviews

Videos

Alberto Montero, MD, UH Seidman Cancer Center
Videos
10/17/2024
Alberto Montero, MD, discusses phase 1/2 study results which demonstrated that STX-478 shows promise in patients with heavily pre-treated PI3Kα-mutated solid tumors.
Alberto Montero, MD, discusses phase 1/2 study results which demonstrated that STX-478 shows promise in patients with heavily pre-treated PI3Kα-mutated solid tumors.
Alberto Montero, MD, discusses...
10/17/2024
Oncology
Demetria Smith-Graziani, MD, MPH, Winship Cancer Institute
Videos
09/24/2024
Demetria Smith-Graziani, MD, MPH, describes the currently enrolling and ongoing INAVO121 trial, evaluating inavolisib vs alpelisib, both in combination with fulvestrant, for patients with PIK3CA-mutated, hormone receptor-positive,...
Demetria Smith-Graziani, MD, MPH, describes the currently enrolling and ongoing INAVO121 trial, evaluating inavolisib vs alpelisib, both in combination with fulvestrant, for patients with PIK3CA-mutated, hormone receptor-positive,...
Demetria Smith-Graziani, MD,...
09/24/2024
Oncology
Heather McArthur, MD
Videos
09/16/2024
Heather McArthur, MD, discusses results from the phase 3 CAPItello-290 trial which evaluated capivasertib plus paclitaxel as first-line treatment for patients with metastatic triple-negative breast cancer.
Heather McArthur, MD, discusses results from the phase 3 CAPItello-290 trial which evaluated capivasertib plus paclitaxel as first-line treatment for patients with metastatic triple-negative breast cancer.
Heather McArthur, MD, discusses...
09/16/2024
Oncology
Demetria Smith-Graziani, MD, MPH, Winship Cancer Institute
Videos
09/03/2024
Demetria Smith-Graziani, MD, MPH, shares insights from the results of the phase 3 INAVO120 study, evaluating the addition of inavolisib to palbociclib and fulvestrant for patients with PIK3CA-mutated, HR-positive, HER2-negative advanced...
Demetria Smith-Graziani, MD, MPH, shares insights from the results of the phase 3 INAVO120 study, evaluating the addition of inavolisib to palbociclib and fulvestrant for patients with PIK3CA-mutated, HR-positive, HER2-negative advanced...
Demetria Smith-Graziani, MD,...
09/03/2024
Oncology
Alexey Danilov, MD
Conference Coverage
10/21/2024
Alexey Danilov, MD, reviews the latest exciting developments in the chronic lymphocytic leukemia clinical research landscape, highlighting BTK and BCL2 inhibitors as well as BTK degraders.
Alexey Danilov, MD, reviews the latest exciting developments in the chronic lymphocytic leukemia clinical research landscape, highlighting BTK and BCL2 inhibitors as well as BTK degraders.
Alexey Danilov, MD, reviews the...
10/21/2024
Oncology
Alexey Danilov, MD
Conference Coverage
10/21/2024
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Alexey Danilov, MD, participated in a debate of optimal frontline therapies for patients with chronic lymphocytic leukemia in which he argued in favor of utilizing acalabrutinib.
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Alexey Danilov, MD, participated in a debate of optimal frontline therapies for patients with chronic lymphocytic leukemia in which he argued in favor of utilizing acalabrutinib.
At the 2024 Lymphoma, Leukemia &...
10/21/2024
Oncology
Benjamin Besse, MD, PhD
Conference Coverage
10/21/2024
Benjamin Besse, MD, PhD, discusses early analysis results from the MARIPOSA study which demonstrated that amivantamab plus lazertinib has promising antitumor activity in patients with advanced EGFR-mutated NSCLC.
Benjamin Besse, MD, PhD, discusses early analysis results from the MARIPOSA study which demonstrated that amivantamab plus lazertinib has promising antitumor activity in patients with advanced EGFR-mutated NSCLC.
Benjamin Besse, MD, PhD,...
10/21/2024
Oncology
Daniel Landsberg, MD
Conference Coverage
10/19/2024
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Daniel Landsburg, MD, participated in a debate where he argued in favor of utilizing CAR T-cell therapy to treat patients with relapsed/refractory follicular lymphoma.
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Daniel Landsburg, MD, participated in a debate where he argued in favor of utilizing CAR T-cell therapy to treat patients with relapsed/refractory follicular lymphoma.
At the 2024 Lymphoma, Leukemia &...
10/19/2024
Lymphoma, Leukemia & Myeloma Network
Joshua Richter, MD
Conference Coverage
10/19/2024
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Joshua Richter, MD, discusses the role of measurable residual disease in the treatment of patients with multiple myeloma.
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Joshua Richter, MD, discusses the role of measurable residual disease in the treatment of patients with multiple myeloma.
At the 2024 Lymphoma, Leukemia &...
10/19/2024
Lymphoma, Leukemia & Myeloma Network
Joanna Rhodes, MD
Conference Coverage
10/18/2024
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Joanna Rhodes, MD, participated in a debate in which she discussed the use of novel therapies including targeted agents for treating patients with relapsed/refractory follicular lymphoma.
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Joanna Rhodes, MD, participated in a debate in which she discussed the use of novel therapies including targeted agents for treating patients with relapsed/refractory follicular lymphoma.
At the 2024 Lymphoma, Leukemia &...
10/18/2024
Lymphoma, Leukemia & Myeloma Network
Craig Sauter, MD
Conference Coverage
10/18/2024
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Craig Sauter, MD, discusses CAR T-cell therapy for R/R aggressive lymphomas such as chronic lymphocytic leukemia/small lymphocytic lymphoma with Richter’s transformation and diffuse large...
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Craig Sauter, MD, discusses CAR T-cell therapy for R/R aggressive lymphomas such as chronic lymphocytic leukemia/small lymphocytic lymphoma with Richter’s transformation and diffuse large...
At the 2024 Lymphoma, Leukemia &...
10/18/2024
Oncology
Beth Faiman, PhD, MSN
Videos
10/18/2024
Beth Faiman PhD, MSN, provides expert insight on tactics for managing oral toxicities associated with talquetamab treatment among patients with relapsed/refractory multiple myeloma.
Beth Faiman PhD, MSN, provides expert insight on tactics for managing oral toxicities associated with talquetamab treatment among patients with relapsed/refractory multiple myeloma.
Beth Faiman PhD, MSN, provides...
10/18/2024
APP Institute Oncology
Justin Kaner, MD
Conference Coverage
10/17/2024
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Justin Kaner, MD, discusses various treatment methods that optimize management of patients with newly diagnosed acute myeloid leukemia, including transplant evaluations and timeliness of test...
At the 2024 Lymphoma, Leukemia & Myeloma Congress, Justin Kaner, MD, discusses various treatment methods that optimize management of patients with newly diagnosed acute myeloid leukemia, including transplant evaluations and timeliness of test...
At the 2024 Lymphoma, Leukemia &...
10/17/2024
Lymphoma, Leukemia & Myeloma Network
Alberto Montero, MD, UH Seidman Cancer Center
Videos
10/17/2024
Alberto Montero, MD, discusses phase 1/2 study results which demonstrated that STX-478 shows promise in patients with heavily pre-treated PI3Kα-mutated solid tumors.
Alberto Montero, MD, discusses phase 1/2 study results which demonstrated that STX-478 shows promise in patients with heavily pre-treated PI3Kα-mutated solid tumors.
Alberto Montero, MD, discusses...
10/17/2024
Oncology
OLN

PIK3CA

ALIASES

Phosphatidylinositol 3-kinase catalytic subunit

References

PIK3CA (phosphatidylinositol 3-kinase catalytic subunit) is an oncogene that encodes one piece (a subunit) of an enzyme called phosphatidylinositol 3-kinase (PI3-Kinase).1 PIK3CA plays a role in the control of cell growth, cell survival, and cell migration. Mutations in the PIK3CA gene can lead to uncontrolled cell growth and contribute to the proliferation and progression of cancer.2 

The PI3-Kinase pathway is one of many signaling pathways that are important for cell growth, transformation, adhesion, apoptosis, survival and invasion.3 PI3-Kinases are heterodimeric lipid kinases composed of catalytic and adaptor/regulatory subunits encoded by separate genes and alternative splicing. In the case of oncogenes, including PIK3CA, genetic changes such as a mutation can result in a cellular state whereby the PIK3CA gene product is constantly activated. Ultimately, this contributes toward uncontrolled cellular growth and other features that are the hallmarks of cancer.1

Gene amplifications, deletions and more recently, somatic missense mutations in the PIK3CA gene have been reported in many human cancer types including cancers of the colon, breast, brain, liver, stomach and lung. These somatic missense mutations were proposed to increase the kinase activity of PIK3CA contributing to cellular transformation.3

PIK3CA mutations are found in 20% to 25% of colon cancers and 10% of rectal cancers. In addition to colorectal cancer, PIK3CA oncogene mutations are involved in several human cancers including breast cancer, ovarian cancer, and non-small cell lung cancer (NSCLC).2

Understanding the Role of PIK3CA

News

FDA Approval
10/10/2024
The FDA has approved inavolisib, with palbociclib and fulvestrant for patients with endocrine-resistant, PIK3CA-mutated HR-positive, HER2-negative locally advanced or metastatic breast cancer.
The FDA has approved inavolisib, with palbociclib and fulvestrant for patients with endocrine-resistant, PIK3CA-mutated HR-positive, HER2-negative locally advanced or metastatic breast cancer.
The FDA has approved inavolisib,...
10/10/2024
Oncology
News
10/02/2024
The phase 3 SAKK 41/13 trial provides the first prospective data that there is a protective effect with adjuvant advil among patients with resected, PIK3CA-mutant colon cancer.
The phase 3 SAKK 41/13 trial provides the first prospective data that there is a protective effect with adjuvant advil among patients with resected, PIK3CA-mutant colon cancer.
The phase 3 SAKK 41/13 trial...
10/02/2024
Oncology
News
09/24/2024
The ongoing INAVO121 trial is open for enrollment of patients with hormone receptor-positive, HER2-negative, PIK3CA-mutated locally advanced or metastatic breast cancer who progressed during or after a CDK4/6-inhibitor–based regimen.
The ongoing INAVO121 trial is open for enrollment of patients with hormone receptor-positive, HER2-negative, PIK3CA-mutated locally advanced or metastatic breast cancer who progressed during or after a CDK4/6-inhibitor–based regimen.
The ongoing INAVO121 trial is...
09/24/2024
Oncology
Conference Coverage
12/08/2023

Stephanie Holland

Stephanie Holland
According to primary analysis results from the phase 3 INAVO120 trial, the addition of inavolisib to palbociclib plus fulvestrant significantly improved investigator-assessed progression-free survival in PIK3CA-mutated, hormone...
According to primary analysis results from the phase 3 INAVO120 trial, the addition of inavolisib to palbociclib plus fulvestrant significantly improved investigator-assessed progression-free survival in PIK3CA-mutated, hormone...
According to primary analysis...
12/08/2023
Oncology
News
10/21/2024
A novel EGFR x HER3 bispecific ADC showed encouraging antitumor activity for heavily-pretreated advanced urothelial carcinoma.
A novel EGFR x HER3 bispecific ADC showed encouraging antitumor activity for heavily-pretreated advanced urothelial carcinoma.
A novel EGFR x HER3 bispecific...
10/21/2024
Oncology
News
10/21/2024
According to second interim data from the MARIPOSA-2 trial, amivantamab plus chemotherapy numerically improved the overall survival, and significantly prolonged the post-progression outcomes among patients with EGFR-mutant non-small cell lung...
According to second interim data from the MARIPOSA-2 trial, amivantamab plus chemotherapy numerically improved the overall survival, and significantly prolonged the post-progression outcomes among patients with EGFR-mutant non-small cell lung...
According to second interim data...
10/21/2024
Oncology
FDA Alerts
10/18/2024
Based on results from the SPOTLIGHT and GLOW trials, the FDA has approved first-line zolbetuximab plus fluoropyrimidine and platinum-containing chemotherapy for patients with locally advanced, unresectable, or metastatic HER2-negative gastric...
Based on results from the SPOTLIGHT and GLOW trials, the FDA has approved first-line zolbetuximab plus fluoropyrimidine and platinum-containing chemotherapy for patients with locally advanced, unresectable, or metastatic HER2-negative gastric...
Based on results from the...
10/18/2024
Oncology
Conference Coverage
10/18/2024
Results from the phase 2 ABIGAIL trial demonstrated that first-line abemaciclib plus endocrine therapy improves efficacy compared to standard chemotherapy among patients with HR-positive, HER2-negative advanced breast cancer.
Results from the phase 2 ABIGAIL trial demonstrated that first-line abemaciclib plus endocrine therapy improves efficacy compared to standard chemotherapy among patients with HR-positive, HER2-negative advanced breast cancer.
Results from the phase 2 ABIGAIL...
10/18/2024
Oncology
FDA Approval
10/17/2024
On October 15, 2024, the FDA granted approval to the Optune Lua, a wearable device that delivers Tumor Treating Fields, for treatment of patients with metastatic non-small cell lung cancer.
On October 15, 2024, the FDA granted approval to the Optune Lua, a wearable device that delivers Tumor Treating Fields, for treatment of patients with metastatic non-small cell lung cancer.
On October 15, 2024, the FDA...
10/17/2024
Oncology
News
10/15/2024
According to phase 3 results from the SIERRA trial, anti-CD45 radioconjugate 131I-apamistamab was well-tolerated and showed a higher durable complete remission rate than standard care among older patients with relapsed/refractory acute...
According to phase 3 results from the SIERRA trial, anti-CD45 radioconjugate 131I-apamistamab was well-tolerated and showed a higher durable complete remission rate than standard care among older patients with relapsed/refractory acute...
According to phase 3 results...
10/15/2024
Oncology
FDA Approval
10/10/2024
The FDA has approved inavolisib, with palbociclib and fulvestrant for patients with endocrine-resistant, PIK3CA-mutated HR-positive, HER2-negative locally advanced or metastatic breast cancer.
The FDA has approved inavolisib, with palbociclib and fulvestrant for patients with endocrine-resistant, PIK3CA-mutated HR-positive, HER2-negative locally advanced or metastatic breast cancer.
The FDA has approved inavolisib,...
10/10/2024
Oncology
News
10/10/2024
Momelotinib was well-tolerated, improved spleen and symptom responses, and reduced transfusion burden among a subgroup of patients with JAK inhibitor-naive myelofibrosis, determined an analysis of the phase 3 SIMPLIFY-1 study.
Momelotinib was well-tolerated, improved spleen and symptom responses, and reduced transfusion burden among a subgroup of patients with JAK inhibitor-naive myelofibrosis, determined an analysis of the phase 3 SIMPLIFY-1 study.
Momelotinib was well-tolerated,...
10/10/2024
Oncology
News
10/10/2024
Nivolumab plus pomalidomide and dexamethasone plus or minus elotuzumab did not demonstrate a clinical benefit compared with pomalidomide and dexamethasone treatment for patients with relapsed/refractory multiple myeloma, according to phase 3...
Nivolumab plus pomalidomide and dexamethasone plus or minus elotuzumab did not demonstrate a clinical benefit compared with pomalidomide and dexamethasone treatment for patients with relapsed/refractory multiple myeloma, according to phase 3...
Nivolumab plus pomalidomide and...
10/10/2024
Oncology
News
10/10/2024
While allogeneic stem cell transplantation is the preferred treatment for younger, transplant-eligible patients with relapsed/refractory peripheral T-cell lymphoma, it is currently not recommended as part of first-line consolidation,...
While allogeneic stem cell transplantation is the preferred treatment for younger, transplant-eligible patients with relapsed/refractory peripheral T-cell lymphoma, it is currently not recommended as part of first-line consolidation,...
While allogeneic stem cell...
10/10/2024
Oncology

Quizzes

Quiz
09/25/2024
Do you know what the progression-free survival was for the inavolisib arm in the INAVO120 trial? Test your knowledge with our quick quiz.
Do you know what the progression-free survival was for the inavolisib arm in the INAVO120 trial? Test your knowledge with our quick quiz.
Do you know what the...
09/25/2024
Oncology
Quiz
09/25/2024
Do you know what percentage of patients with hormone receptor-positive, HER2-negative breast cancer have a PIK3CA mutation? Take our quick quiz to find out!
Do you know what percentage of patients with hormone receptor-positive, HER2-negative breast cancer have a PIK3CA mutation? Take our quick quiz to find out!
Do you know what percentage of...
09/25/2024
Oncology
Quiz
10/16/2024
True or False: According to results from the phase 2, open-label ACE-536-MF-001 trial, luspatercept did not improve anemia and transfusion burden among patients with myelofibrosis-associated anemia with or without both red blood cell...
True or False: According to results from the phase 2, open-label ACE-536-MF-001 trial, luspatercept did not improve anemia and transfusion burden among patients with myelofibrosis-associated anemia with or without both red blood cell...
True or False: According to...
10/16/2024
Oncology
Quiz
10/15/2024
True or False: According to study results comparing a custom DNA sequencing panel designed to detect prognostic copy number alterations and gene mutations versus the widely used FISH panel among untreated patients with CLL and high-count...
True or False: According to study results comparing a custom DNA sequencing panel designed to detect prognostic copy number alterations and gene mutations versus the widely used FISH panel among untreated patients with CLL and high-count...
True or False: According to...
10/15/2024
Oncology
Quiz
10/11/2024
True or False: According to phase 2 prospective study results from a multicenter trial, a high IPSS risk score, high baseline fetal hemoglobin level, and sustained decreases in circulating CD34+ cell counts were associated with a response to...
True or False: According to phase 2 prospective study results from a multicenter trial, a high IPSS risk score, high baseline fetal hemoglobin level, and sustained decreases in circulating CD34+ cell counts were associated with a response to...
True or False: According to...
10/11/2024
Oncology
Quiz
10/11/2024
According to results presented at ASCO 2024 from the SYMPATICO study population in patients with MCL with TP53 mutations, the combination of ibrutinib plus venetoclax increased overall survival to ___ months for all 74 patients. 50473230
According to results presented at ASCO 2024 from the SYMPATICO study population in patients with MCL with TP53 mutations, the combination of ibrutinib plus venetoclax increased overall survival to ___ months for all 74 patients. 50473230
According to results presented...
10/11/2024
Oncology
Quiz
10/11/2024
True or False: According to results from a pooled analysis of 5 clinical trials of acalabrutinib as monotherapy or in combination with obinutuzumab among patients with higher-risk CLL in treatment-naive or relapsed/refractory cohorts, PFSl...
True or False: According to results from a pooled analysis of 5 clinical trials of acalabrutinib as monotherapy or in combination with obinutuzumab among patients with higher-risk CLL in treatment-naive or relapsed/refractory cohorts, PFSl...
True or False: According to...
10/11/2024
Oncology
Quiz
10/08/2024
True or False: According to an analysis of the Richter transformation subgroup from the phase 1/2 BRUIN study, pirtobrutinib demonstrates encouraging safety and activity among patients with relapsed/refractory B-cell malignancies with Richter...
True or False: According to an analysis of the Richter transformation subgroup from the phase 1/2 BRUIN study, pirtobrutinib demonstrates encouraging safety and activity among patients with relapsed/refractory B-cell malignancies with Richter...
True or False: According to an...
10/08/2024
Oncology
Quiz
10/03/2024
Do you know whether SHR-A1811 demonstrated promising antitumor activity among heavily pretreated patients with HER2-expressing or mutated advanced solid tumors? Take our quiz to find out!
Do you know whether SHR-A1811 demonstrated promising antitumor activity among heavily pretreated patients with HER2-expressing or mutated advanced solid tumors? Take our quiz to find out!
Do you know whether SHR-A1811...
10/03/2024
Oncology
Quiz
10/01/2024
True or False: According to phase 2 results from the ELM-2 study, odronextamab treatment achieved high complete response rates among heavily pretreated patients with relapsed/refractory follicular lymphoma, while demonstrating a manageable...
True or False: According to phase 2 results from the ELM-2 study, odronextamab treatment achieved high complete response rates among heavily pretreated patients with relapsed/refractory follicular lymphoma, while demonstrating a manageable...
True or False: According to...
10/01/2024
Oncology
Quiz
09/30/2024
True or False: According to results from a retrospective observational study, among patients with relapsed large B-cell lymphoma who achieve a complete remission, treatment with autologous hematopoietic cell transplantation fails to...
True or False: According to results from a retrospective observational study, among patients with relapsed large B-cell lymphoma who achieve a complete remission, treatment with autologous hematopoietic cell transplantation fails to...
True or False: According to...
09/30/2024
Oncology
Quiz
09/30/2024
In the TROPION-PanTumor03 study, what was the confirmed objective response rate among patients with endometrial cancer treated with datopotamab deruxtecan?
In the TROPION-PanTumor03 study, what was the confirmed objective response rate among patients with endometrial cancer treated with datopotamab deruxtecan?
In the TROPION-PanTumor03 study,...
09/30/2024
Oncology

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