San Antonio Breast Cancer Symposium

Rates of invasive cancer were noninferior when patients with low-risk ductal carcinoma in situ received active monitoring vs guideline concordant care.

Radiation therapy produced superior HRQOL outcomes and fewer toxicities vs endocrine therapy in older patients with stage I luminal-like breast cancer.

Ultra-sensitive tissue-free ctDNA testing showed that baseline ctDNA was associated with larger pathological tumor size in HR-positive breast cancer.

Elacestrant increased real-world TTNT for patients with ESR1-mutant HR-positive/HER2-negative breast cancer vs PFS from the phase 3 EMERALD trial.

The risk of developing high-grade immune-related AEs was heightened among patients with breast cancer who were older and who had chronic kidney disease.

Albert Grinshpun, MD, MSc, discusses the utility of ctDNA as a predictive biomarker of endocrine therapy sensitivity in patients with HR+ breast cancer.

Erica L. Mayer, MD, MPH, discusses findings with neoadjuvant niraparib plus dostarlimab in ER-positive, HER2-negative, BRCA/PALB2-mutated breast cancer.

ctDNA was most frequently detected within 6 months post-treatment in patients with TNBC, aligning with the early recurrence pattern characteristic of the disease.

Treatment with atezolizumab and neoadjuvant chemotherapy followed by adjuvant atezolizumab did not improve EFS in triple-negative breast cancer.

T-DXd displayed favorable HRQOL and neurological function results in HER2+ metastatic breast cancer regardless of the presence of brain metastases.

Treatment with preoperative niraparib plus dostarlimab generated responses among patients with BRCA-mutant, ER-positive, HER2-negative breast cancer

Neoadjuvant camrelizumab paired with chemotherapy significantly improved pCR over chemotherapy alone in early or locally advanced TNBC.

Mariya Rozenblit, MD, discusses how genomic alterations and TMB influence the efficacy of immune checkpoint inhibitors in HR+ metastatic breast cancer.

Maxwell Lloyd, MD, discusses a real-world study of elacestrant outcomes based on prior treatment and ESR1 mutation status in HR+ breast cancer.

Palbociclib plus anti-HER2 and endocrine therapy improved progression-free survival in hormone receptor–positive, HER2-positive metastatic breast cancer.

Tamoxifen reduced the risk of invasive ipsilateral breast recurrence in patients with good-risk ductal carcinoma in situ.

Retrospective data showed there was no OS difference between 3 frontline CDK4/6 inhibitor combos in HR-positive breast cancer.

Patients with luminal B and HER2E breast cancer subtypes may have a greater PFS benefit with ribociclib plus endocrine therapy vs combination chemotherapy.

Azka Ali, MD, discusses findings from the S0221 trial of alternative adjuvant anthracycline and taxane dosing schedules in high-risk, early breast cancer.

Imlunestrant with or without abemaciclib improved PFS in select patients with ER-positive, HER2-negative advanced breast cancer after endocrine therapy.

Neoadjuvant patritumab deruxtecan with or without letrozole produced pathologic complete responses in high-risk, HR-positive/HER2-negative breast cancer.

SHR-A1811 monotherapy demonstrated high clinical activity and was well tolerated in patients with HER2-positive breast cancer.

Adjuvant olaparib maintained an efficacy benefit vs placebo in patients with BRCA1/2 mutation–positive, HER2-negative high-risk breast cancer.

Elacestrant plus abemaciclib demonstrated clinically important efficacy in ER-positive/HER2-negative advanced or metastatic breast cancer.

Hope S. Rugo, MD, FASCO, discusses updated safety findings from the ELEVATE trial of elacestrant-based combinations in ER+/HER2– metastatic breast cancer.

Risk-reducing surgery improved survival outcomes in younger patients with breast cancer and a germline BRCA mutation.

T-DXd improved PFS vs treatment of physician’s choice in hormone receptor-positive, HER2-low/-ultralow metastatic breast cancer.

Elacestrant was partnered with multiple targeted agents across varying dose levels and schedules for patients with estrogen receptor–positive advanced breast cancer.

Virginia Kaklamani, MD, DSc, discusses an analysis of ESR1 allelic frequencies in elacestrant-exposed ER+/HER2– metastatic ESR1-mutated breast cancer.

Pembrolizumab plus chemotherapy conferred an efficacy advantage over chemotherapy alone in high-risk TNBC subgroups defined by potential biomarkers.