San Antonio Breast Cancer Symposium | Conference

Adjuvant Metformin Does Not Improve Survival Outcomes in Early Breast Cancer

December 7th 2021

Metformin failed to improve invasive disease-free survival or overall survival when used as adjuvant treatment in patients with early breast cancer, irrespective of estrogen or progesterone receptor status.

Tamoxifen May Increase Risk of Secondary Uterine Cancer In Select Patients With Primary Breast Cancer

December 7th 2021

Patients with primary breast cancer who developed secondary uterine cancer following treatment with tamoxifen may have had disease driven by PI3K-pathway activation.

Breast Cancer–Related Lymphedema Occurs More Often in Black Women Vs White Women

December 7th 2021

The highest incidence of lymphedema observed was among the Black women with a 24-month lymphedema rate of 39.4%.

Elacestrant Significantly Improves PFS in Advanced ER+ Breast Cancer, Including ESR1-Mutant Subtype

December 7th 2021

The selective estrogen receptor degrader elacestrant (RAD1901) led to a 30% reduction in the risk of disease progression or death compared with standard of care in patients with estrogen receptor–positive, HER2-negative metastatic breast cancer who previously received CDK4/6 inhibition.

Matched Targeted Therapy Improves PFS Through Multigene Sequencing in Metastatic Breast Cancer

December 7th 2021

Genomic alterations identified through multigene sequencing, classified in the I/II tiers of the ESMO Scale of Actionability of Molecular Targets, and paired with matching targeted therapy led to a significant improvement in progression-free survival vs maintenance chemotherapy in patients with HER2-negative metastatic breast cancer.

Single-Cell Spatial Analysis for Immunotherapy Response Prediction in Early TNBC Shows Promise

December 7th 2021

Imaging mass cytometry at the single-cell level showed potential as an immunotherapy response prediction tool in early triple-negative breast cancer.

Neratinib Improves PFS in HER2+ Breast Cancer With Brain Metastases

December 14th 2020

December 14, 2020 - The combination of neratinib and capecitabine showed a 34% reduction in the risk of disease progression or death compared with lapatinib and capecitabine in patients with HER2-positive breast cancer who had central nervous system metastases at baseline.

Dr. Hamilton on the Mechanism of Action of OP-1250 in HR+/HER2- Metastatic Breast Cancer

December 12th 2020

Erika P. Hamilton, MD, discusses the mechanism of action of OP-1250 in patients with hormone receptor–positive, HER2-negative metastatic breast cancer.

Dr. Harbeck on Ki-67 as a Biomarker for Identifying High-Risk Early Breast Cancer

December 12th 2020

Nadia Harbeck, MD, PhD, discusses Ki-67 as a biomarker for identifying patients with high-risk early breast cancer who received treatment on the monarchE trial.

Tucatinib Triplet Prolongs Time to Deterioration of HRQOL in HER2+ Breast Cancer With Brain Metastases

December 12th 2020

December 11, 2020 - Tucatinib in combination with trastuzumab and capecitabine significantly prolonged the time to deterioration of health-related quality of life in patients with HER2- positive metastatic breast cancer with brain metastases.

Addition of 1-Year Palbociclib to Endocrine Therapy Fails to Improve iDFS in High-Risk HR+/HER2- Breast Cancer

December 11th 2020

December 11, 2020 - The addition of 1 year of palbociclib to endocrine therapy failed to improve invasive disease-free survival in patients with hormone receptor–positive, HER2-negative breast cancer who are at high risk of relapse following neoadjuvant chemotherapy.

RSClin Delivers More Precise Assessment of Distant Recurrence Risk and Chemo Benefit in Early Breast Cancer

December 11th 2020

The clinical tool RSClin™, which integrates the 21-gene expression assay and clinical pathologic features, was shown to provide more prognostic information than the 21-gene recurrence score or clinical pathologic features alone and a more precise prediction of absolute chemotherapy benefit in node-negative early breast cancer.

GI AEs Associated With Oral Paclitaxel Plus Encequidar Subside with Antiemetics, Loperamide in Metastatic Breast Cancer

December 11th 2020

December 11, 2020 - Gastrointestinal adverse events that occurred in patients with metastatic breast cancer who were treated with oral paclitaxel and encequidar can be managed by the use of 5- HT3 inhibitors and early intervention with loperamide.

Sacituzumab Govitecan Improves PFS in Metastatic TNBC With Brain Metastases

December 11th 2020

December 11, 2020 - Sacituzumab govitecan increased response rates and improved progression-free survival vs chemotherapy in patients with metastatic triple-negative breast cancer with stable brain metastases, although no overall survival improvement was observed.

ctDNA Emerges as a Biomarker for Response, Outcomes in High-Risk Early Breast Cancer

December 11th 2020

December 11, 2020 - The presence of circulating tumor DNA following neoadjuvant chemotherapy with or without pembrolizumab was a biomarker for response and distant recurrence-free survival in patients with high-risk early-stage breast cancer.

Combination Therapy with Tesetaxel and Capecitabine Improves PFS in HER2-, HR+ Metastatic Breast Cancer

December 11th 2020

December 11, 2020 - Patients with human epidermal growth factor receptor 2-negative, hormone receptor-positive metastatic breast cancer who were treated with tesetaxel and a reduced dose of capecitabine experienced improvements in progression-free survival compared with those treated with the FDA-approved dose of capecitabine alone.

Plinabulin/Pegfilgrastim Shows 53% Efficacy Rate in Preventing Profound Neutropenia

December 11th 2020

December 11, 2020 - The combination of plinabulin and pegfilgrastim was 53% more effective in reducing the incidence of profound neutropenia compared with pegfilgrastim alone in patients undergoing chemotherapy, according to full findings of the phase 3 PROTECTIVE-2 trial.

AI-Based Analysis Enhances Prediction of Best Responders for Trastuzumab Deruxtecan

December 11th 2020

December 11, 2020 - Use of a novel HER2 quantitative continuous score was better able to provide an objective and quantitative assessment of HER2 expression to identify patients who are most likely to respond to fam-trastuzumab deruxtecan-nxki.

GP2/GM-CSF Combo Elicits 100% DFS Rate in HER2 3+ Breast Cancer at 5 Years

December 11th 2020

December 10, 2020 - The GP2 immunotherapy plus granulocyte-macrophage colony-stimulating factor demonstrated potent responses and a 100% disease-free survival in patients with HER2/neu 3–positive disease who received adjuvant trastuzumab.

Amcenestrant Demonstrates Intriguing Activity in Postmenopausal Advanced ER+ Breast Cancer

December 11th 2020

December 10, 2020 - Amcenestrant elicited antitumor activity in heavily pretreated, postmenopausal women with advanced or metastatic estrogen receptor–positive breast cancer.