Thursday General Session and Poster Spotlight Session presentations

*Titles, times, and locations may change. Check SABCS.org or the SABCS meeting platform and mobile app for the latest schedule.


GENERAL SESSION 2
Thursday, December 7
8:15 a.m. – 11:15 a.m.
Hall 1

8:15–8:30 a.m. —GS02-01: Randomized phase 3 study of datopotamab deruxtecan vs chemotherapy for patients with previously-treated inoperable or metastatic hormone receptor-positive, HER2-negative breast cancer: Results from TROPION-Breast01

8:30–8:45 a.m. —GS02-02: Are nodal ITCs after neoadjuvant chemotherapy an indication for axillary dissection? The OPBC05/EUBREAST-14R/ICARO study

8:45–9:00 a.m. —GS02-03: Discussant for GS02-02

9:00–9:15 a.m. —GS02-04: Surgical treatment of women with breast cancer and a BRCA1 mutation: An international analysis of the impact of bilateral mastectomy on survival

9:15–9:30 a.m. —GS02-05: Overview of axillary treatment in early breast cancer: Patient-level meta-analysis of long-term outcomes among 20,273 women in 29 randomized trials

9:30–9:45 a.m. —GS02-06: Recurrence-free survival following sentinel node-positive breast cancer without completion axillary lymph node dissection: First results from the international randomized SENOMAC trial

9:45–10:00 a.m. —GS02-07: Loco-regional irradiation in patients with biopsy-proven axillary node involvement at presentation who become pathologically node-negative after neoadjuvant chemotherapy: Primary outcomes of NRG oncology/NSABP B-51/RTOG 1304

10:00–10:15 a.m. —GS02-08: Five-year outcomes of the IDEA trial of endocrine therapy without radiotherapy after breast-conserving surgery for postmenopausal patients age 50-69 with genomically selected favorable Stage I breast cancer

10:15–10:30 a.m. —GS02-09: Discussant for GS02-06, GS02-07, and GS02-08

10:30–10:45 a.m. —GS02-10: Effects of a structured and individualized exercise program on fatigue and health-related quality of life in patients with metastatic breast cancer: the multinational randomized controlled PREFERABLE-EFFECT study

10:45–11:00 a.m. —GS02-11: Fertility preservation and assisted reproductive technologies (ART) in breast cancer (BC) patients (pts) interrupting endocrine therapy (ET) to attempt pregnancy

11:00–11:15 a.m. – GS02-12: Discussant for GS02-11


POSTER SPOTLIGHT SESSION #10: REFINING PREDICTION OF CANCER RISK AND OUTCOMES
7:00 a.m. – 8:00 a.m.
Stars at Night Ballroom 3-4

Presentations:

PS10-01: Hormonal contraception and breast cancer risk for carriers of germline pathogenic variants in BRCA1 and BRCA2

PS10-02: Association between germline mutation status and overall survival among women with breast cancer in population-based studies in the United States

PS10-03: Impact of baseline oestradiol and testosterone on the preventive effect of anastrozole

PS10-04: The landscape of somatic genetic alterations in breast cancers from carriers of germline pathogenic variants in DNA-repair genes

PS10-05: Discussant and panel discussion

PS10-06: Contribution of a breast cancer polygenic risk score to mammography artificial intelligence models and breast density for long term breast cancer risk prediction

PS10-07: A second-generation polygenic risk score PRS based on genetic ancestry improves breast cancer BC risk prediction for all ancestries

PS10-08: Validation of a clinical image-based AI-risk model for individualized breast cancer screening in a multi-national setting

PS10-09: Development of an absolute risk prediction model for premenopausal breast cancer in an international consortium

PS10-10: Discussant and panel discussion


POSTER SPOTLIGHT SESSION #11: CNS DISEASE IN BREAST CANCER: WHERE ARE WE NOW AND CAN WE DO BETTER?
7:00 a.m. – 8:00 a.m.
Hemisfair Ballroom 1-2

Presentations:

PS11-01: Brain metastases in metastatic breast cancer: prevalence per line of treatment and cumulative incidence in a cohort of 18075 real-world patients

PS11-02: Clinical risk factors of Central Nervous System CNS-related death in patients with HER2-positive metastatic breast cancer

PS11-03: Comparison of next-generation sequencing NGS results from the cerebrospinal fluid, peripheral blood, and systemic metastatic tumor tissue of patients with metastatic breast cancer MBC and leptomeningeal disease LMD

PS11-05: Trastuzumab deruxtecan in patients with HER2[+] or HER2-low advanced breast cancer and pathologically confirmed leptomeningeal carcinomatosis: Results from cohort 5 of the DEBBRAH study

PS11-06: Analysis of HER2 expression changes from breast primary to brain metastases including HER2 Low and impact on overall survival

PS11-07: High prevalence of HER2-Low and AR expression in breast cancer brain metastases provide novel therapeutic options

PS11-08: Discussant and panel discussion


POSTER SPOTLIGHT SESSION #12: PUTTING BRAKES ON THE CELL CYCLE: UNDERSTANDING MECHANISMS GOVERNING CDK 4/6 INHIBITOR RESISTANCE AND ROLE FOR NOVEL THERAPEUTIC STRATEGIES
7:00 a.m. – 8:00 a.m.
Stars at Night Ballroom 1-2

Presentations:

PS12-02: Exploration of ctDNA Dynamics in the PACE trial: A randomized phase ii study of fulvestrant, palbociclib, and avelumab for HR+/HER2- metastatic breast cancer

PS12-03: p53 loss enables HR+ breast cancer escape from CDK4/6 inhibitor-induced quiescence via CDK2

PS12-04: Inhibition of GPX4 enhances CDK4/6 inhibitor activity in breast cancer.

PS12-05: Discussant and panel discussion

PS12-06: A phase 2 study of abemaciclib monotherapy for patients with retinoblastoma-positive (Rb+), triple-negative metastatic breast cancer

PS12-07: Phase II clinical trial of palbociclib and binimetinib in advanced triple-negative breast cancer (TNBC) with hyperactivation of ERK and/or CDK4/6

PS12-08: MORPHEUS hormone receptor-positive breast cancer: interim analysis of a phase Ib/II, study of fulvestrant ± atezolizumab and abemaciclib triplet treatment in patients metastatic disease

PS12-09: Capivasertib plus cyclin-dependent kinase 4/6 inhibitor and fulvestrant in hormone receptor-positive/human epidermal growth factor receptor 2-negative advanced breast cancer: updated Phase 1b analysis from CAPItello-292

PS12-10: Discussant and panel discussion


POSTER SPOTLIGHT SESSION #13: SPECIAL POPULATIONS: PREGNANCY, MALE AND GERIATRIC PATIENTS
5:30 p.m. – 6:30 p.m.
Stars at Night Ballroom 3-4

Presentations:

PS13-01: Worse prognosis for breast cancer in the second and third trimesters and shortly postpartum: An update of the Dutch pregnancy-associated breast cancer cohort

PS13-02: Clinical outcome and patients’ characteristics of breast cancer diagnosed during pregnancy: A retrospective single institutional study

PS13-03: Safety of taxane chemotherapy for the treatment of breast cancer during pregnancy: an international cohort study

PS13-04: Frequent Intra-tumoral hypoxia in pregnancy-associated breast cancer

PS13-05: Pregnancy after breast cancer in young women with germline BRCA pathogenic variants: results from an international cohort study

PS13-06: Discussant and panel discussion

PS13-07: Systemic therapy in geriatric patients with triple negative breast cancer: a National Cancer Database analysis

PS13-08: Chemotherapy in geriatric patients with early stage HER2+ breast cancer: A National Cancer Database analysis.

PS13-09: Molecular and immunological landscape of sex-based differences in breast cancer: a distinct disease in men.

PS13-10: Discussant and panel discussion


POSTER SPOTLIGHT SESSION #14: SETTING EXPECTATIONS FOR TOXICITIES RELATED TO I/O THERAPY
5:30 p.m. – 6:30 p.m.
Hemisfair Ballroom 1-2

Presentations:

PS14-01: Immune related adverse events in patients ≥65 years vs. <65 years with breast cancer treated with immunotherapy

PS14-02: Real-world analysis comparing Black and White patients with triple-negative breast cancer receiving therapy per KEYNOTE-522

PS14-03: Delayed and post-treatment immune toxicities in patients with breast cancer receiving immune checkpoint inhibitors.

PS14-04: Discussant and panel discussion

PS14-05: Safety evaluation from the KEYNOTE-522 study of neoadjuvant pembrolizumab (or placebo) plus chemotherapy followed by adjuvant pembrolizumab (or placebo) in patients with early triple-negative breast cancer (TNBC)

PS14-06: Real-world analysis comparing Black and White patients with triple-negative breast cancer receiving therapy per KEYNOTE-522

PS14-07: Exploring Circulating Leukocyte RNA Expression: Implications for Treatment Outcomes and Immune-Related Adverse Events in Patients with Triple Negative Breast Cancer Enrolled in the GeparNuevo Trial

PS14-08: Safety evaluation from the KEYNOTE-355 study of pembrolizumab plus chemotherapy vs placebo plus chemotherapy in patients with previously untreated, locally recurrent inoperable or metastatic triple-negative breast cancer

PS14-09: Discussant and panel discussion


POSTER SPOTLIGHT SESSION #15: NOVEL NUCLEAR RECEPTOR TARGETING THERAPIES
5:30 p.m. – 6:30 p.m.
Stars at Night Ballroom 1-2

Presentations:

PS15-01: A first-in-human phase 1 study of SIM0270, a brain-penetrant oral selective estrogen receptor degrader (SERD), in patients with ER+/ HER2- locally advanced or metastatic breast cancer

PS15-02: A Phase Ⅰb Study of D-0502 as monotherapy for advanced or metastatic ER-positive and HER2-negative breast cancer: Results from the dose-expansion stage

PS15-03: Vepdegestrant, a PROteolysis TArgeting Chimera (PROTAC) estrogen receptor (ER) degrader, plus palbociclib in ER–positive/human epidermal growth factor receptor 2 (HER2)–negative advanced breast cancer: phase 1b cohort

PS15-04: A Phase 1b/2 study of palazestrant (OP-1250), an oral complete estrogen receptor antagonist (CERAN) and selective ER degrader (SERD), with palbociclib in ER-positive, HER2-negative, advanced or metastatic breast cancer patients

PS15-05: Discussant and panel discussion

PS15-06: Results of the window-of-opportunity PIONEER trial evaluating addition of the progesterone receptor (PR) agonist megestrol to letrozole for early stage estrogen receptor (ER) positive breast cancer: exploiting ER-PR interaction

PS15-07: Proxalutamide plus Endocrine Therapies in Women with HR+/HER2-/AR+ Metastatic Breast Cancer: A Phase Ic Study

PS15-08: Final Overall Survival (OS) analysis of the SAKK 21/12 trial. CR1447 in HR+/HER2- metastatic breast cancer and androgen receptor positive triple negative breast cancer.

PS15-09: Imlunestrant monotherapy and in combination with abemaciclib, with or without an aromatase inhibitor, in estrogen receptor-positive (ER+), HER2-negative (HER2-) advanced breast cancer (aBC): updated results from the EMBER study

PS15-10: Discussant and panel discussion

Connect with thousands of basic and translational scientists, multidisciplinary clinicians, regulatory and pharmaceutical partners, survivors, and patient advocates at the 49th annual San Antonio Breast Cancer Symposium. Complete your registration by Friday, September 25, to take advantage of discounted early registration rates.