ASCO Annual Meeting: Breast Cancer

Daniel G. Stover, MD, describes how findings from the phase 3 NATALEE trial may support expanding the portion of patients who receive CDK 4/6 inhibitors as a treatment for hormone receptor–positive, HER2-negative breast cancer.

Daniel G. Stover, MD, suggests that stromal tumor infiltrating lymphocytes may serve as a biomarker of immune activation and can potentially help optimize therapy with microtubule-targeting agents for patients with metastatic breast cancer.

Hope Rugo, MD, speaks to the importance of identifying patients with aromatase inhibitor–resistant, hormone receptor–positive, HER2-negative advanced breast cancer who are undergoing treatment with capivasertib/fulvestrant who may be at a high risk of developing diabetes or hyperglycemia.

The anti-tumor activity of lasofoxifene plus abemaciclib does not appear to be compromised by co-occurring alterations that confer resistance among patients with estrogen receptor–positive HER2-negative breast cancer.

Additionally, treatment with sacituzumab govitecan-hziy may result in a prolonged overall response rate and clinical benefit rate vs treatment of physician’s choice in pretreated, endocrine-resistant, hormone receptor–positive, HER2-negative metastatic breast cancer.

Treatment with patritumab deruxtecan appears to yield improved responses in patients who have been heavily pretreated for metastatic breast cancer.

Sara M. Tolaney, MD, MPH, describes the benefit of sacituzumab govitecan for patients with HER2-low metastatic breast cancer seen in the final overall survival analysis of the phase 3 TROPiCS-02 study.

Zotaifin plus abemaciclib and fulvestrant appears to produce no dose-limiting toxicities among patients with estrogen receptor–positive metastatic breast cancer in a phase 1/2 study.

Elacestrant also appears to produce a manageable safety profile in the treatment of patients with estrogen receptor–positive HER2-negative advanced breast cancer in the phase 3 EMERALD trial.

Older patients with hormone receptor–positive, HER2-negative, high-risk early breast cancer maintain a clinically meaningful absolute reduction in risk of distant relapse and invasive disease following treatment with abemaciclib and endocrine therapy.

Results from the phase 3 NATALEE trial investigating ribociclib plus endocrine therapy may change practice for the treatment of hormone receptor–positive or HER2-negative early breast cancer, according to an expert from the University of Chicago Medicine.

Data from a phase 3 study indicate that weight loss intervention with a telephone-based program appears to be effective across all subgroups of breast cancer survivors.

According to Hurvitz, the findings of trials such as DESTINY-Breast04 and TROPiCS-02 shed light on potential new therapies for breast cancer, though more research is needed to address new agents and other unmet needs.

Patients with locally advanced or metastatic ESR1-mutant, estrogen receptor–positive, HER2-negative breast cancer who have progressed on a CDK4/6 inhibitor may benefit from treatment with lasofoxifene and abemaciclib.

Valentina Boni, MD, PhD, spoke about numerous trials in the breast cancer space presented at 2022 ASCO.

Mark Pegram, MD, spoke the most important data from the IDEAL trial he believes his colleagues should take away.

Valentina Boni, MD, PhD, spoke about the safety profile observed of lurbinectedin monotherapy and future analyses for patients with BRCA1/2-associated metastatic breast cancer.

Hope S. Rugo, MD, FASCO, gave an overview of ribociclib plus aromatase inhibitor use vs abemaciclib plus aromatase inhibitors for patients with hormone receptor-positive, HER2-negative advanced breast cancer.

Hope S. Rugo, MD, FASCO, reviewed data from a matching-adjusted indirect comparison study which analyzed quality of life in patients with hormone receptor–positive, HER2-negative advanced breast cancer treated with ribociclib- or abemaciclib-based regimens.

Valentina Boni, MD, PhD, spoke about the rationale behind using lurbinectedin monotherapy for pretreated BRCA1/2-associated metastatic breast cancer.

Mark Pegram, MD, discussed the highlights from ASCO 2022, regarding antibody drug conjugates.

Steven J. Chmura, MD, PhD, discussed recent findings from the phase 2R/3 NRG-BR002 trial in patients with newly diagnosed oligometastatic breast cancer.

Paolo Tarantino, MD, and Sara M. Tolaney, MD, MPH, spoke with CancerNetwork® about highlights from 2022 ASCO in breast cancer research.

Mark Pegram, MD, spoke about predictive and prognostic factors used to determine which patients with early-stage hormone receptor–positive breast cancer benefit from extended vs standard adjuvant endocrine therapy.

Mark Pegram, MD, spoke about using the Breast Cancer Index and Clinical Treatment Score post-5 years to determine outcomes for patients with early-stage hormone receptor–positive breast cancer treated with adjuvant endocrine therapy.

Steven J. Chmura, MD, PhD, spoke about interesting findings from a phase 2R/3 trial of patients with newly oligometastatic breast cancer who were given standard of care systemic treatment with or without stereotactic body radiotherapy and/or surgical resection.

Hope S. Rugo, MD, FASCO, spoke about future analyses of the phase 3 TROPiCS-02 trial that examined sacituzumab govitecan vs physicians’ choice chemotherapy in patients with hormone receptor–positive, HER2-negative advanced breast cancer.

Hope S. Rugo, MD, spoke about results of the phase 3 TROPiCS-02 trial examining sacituzumab govitecan vs physicians’ choice chemotherapy for patients with hormone receptor–positive, HER2-negative advanced breast cancer presented at ASCO 2022.

Dose reductions of ribociclib administered during the phase 2 MONALEESA-2 trial did not have an impact on overall survival for patients with hormone receptor–positive, HER2-negative advanced breast cancer.

Radiotherapy can be avoided after surgery in certain patients with low-grade luminal A breast cancer who have low Ki67 expression and no positive lymph nodes, according to data from 2022 ASCO.