Breast Cancer

Panelists discuss how patients with HER2+ breast cancer frequently develop brain metastases, with recent pivotal trials such as HER2CLIMB and DESTINY-Breast03 demonstrating improved intracranial responses with newer agents such as tucatinib, and how trastuzumab deruxtecan leads to evolving standards of care (SOC) that now incorporate these targeted therapies alongside traditional local therapies.

Julie Lang, MD, discusses real-world outcomes of the neoadjuvant KEYNOTE-522 regimen in patients with early-stage triple-negative breast cancer.

Panelists discuss how genotype-directed treatment options compare with fulvestrant, factors influencing the choice of therapy, and strategies for managing adverse events with this class of therapies.

Panelists discuss perceptions on the efficacy and safety data for proteolysis targeting chimeras (PROTACs) and the selective estrogen receptor modulator (SERM) lasofoxifene in the treatment of HR+/HER2– breast cancer.

Panelists discuss how decentralizing testing can address socioeconomic disparities by improving access to diagnostics for underserved populations. In-house testing reduces barriers like transportation challenges, lack of insurance, and limited availability of specialized tests, ensuring timely, equitable health care for all communities.

Panelists discuss how decentralizing biomarker testing improves access to targeted therapies and clinical trials for underserved populations by reducing geographic and systemic barriers, fostering equity in cutting-edge health care.

The top 5 videos of the week cover insights in lung cancer, multiple myeloma, breast cancer, and follicular lymphoma.

Encorafenib combination boosts survival in BRAF V600E+ mCRC, pertuzumab biosimilar BLA is under review for HER2+ breast cancer, and more from OncLive.

Kevin T. Nead, MD, MPhil, details findings on the association between prevalent CVD and breast cancer and next steps for investigating the connection.

Manish R. Patel, MD, and Gottfried E. Konecny, MD, detail findings from studies evaluating CLDN6-directed agents that showed signals of promising efficacy and tolerability.

Panelists discuss how trastuzumab deruxtecan’s (T-DXd's) key adverse events (AEs) include interstitial lung disease, neutropenia, and nausea/fatigue, emphasizing the importance of proactive monitoring, early intervention through coordinated multidisciplinary care, and comprehensive patient education with clear communication channels for reporting symptoms.

Panelists discuss how trastuzumab deruxtecan (T-DXd) demonstrated favorable patient-reported outcomes and quality of life measures in HER2-low hormone receptor-positive metastatic breast cancer patients in DESTINY-Breast06, suggesting it could be a well-tolerated therapeutic option that maintains patients' daily functioning while providing clinical benefit.

Eric Winer, MD, discusses considerations for inavolisib plus palbociclib with fulvestrant in PIK3CA-mutated, HR-positive, HER2-negative breast cancer.

Panelists discuss recent data on other selective estrogen receptor degraders (SERDs) and their implications in the treatment of HR+/HER2– breast cancer.

Panelists discuss the clinical findings of elacestrant, an oral selective estrogen receptor degrader (SERD), for the treatment of ER+/HER2– metastatic breast cancer.

Here is your snapshot of all therapeutic options that were approved by the FDA in January 2025 spanning tumor types.

Aditya Bardia, MD, MPH, FASCO, discusses the FDA approval of Dato-DXd for pretreated, hormone receptor–positive, HER2-negative metastatic breast cancer.

Coauthor of the Lancet Breast Cancer Commission report, Reshma Jagsi, MD, DPhil, details the 6 themes of the evidence-based plan aimed to address challenges in the field.

Panelists discuss how in-house laboratory testing has demonstrated significant advantages in patient care through rapid turnaround times and immediate decision-making capabilities. Emergency departments have seen notably improved outcomes when critical tests like cardiac markers and blood gases are performed on-site, enabling faster treatment initiation for acute conditions. For example, rapid troponin testing in-house allows for immediate cardiac intervention decisions, while stat electrolyte panels enable quick medication adjustments for critical patients. Additionally, on-site therapeutic drug monitoring helps clinicians make real-time dosing modifications, which is particularly beneficial for antibiotics and anticoagulation therapy.

Panelists discuss how in-house testing facilities significantly enhance multidisciplinary coordination by enabling rapid result turnaround and real-time treatment adjustments. This streamlined process facilitates immediate care planning among specialists, leading to faster clinical decisions and reduced wait times. Studies demonstrate that on-site testing correlates with improved patient outcomes through earlier interventions, decreased length of stay, and enhanced treatment monitoring, ultimately supporting more efficient and responsive patient care delivery.

T-DXd wins FDA approval in HER2-low and -ultralow breast cancer, 177 Lutetium edotreotide boosts PFS in GEP-NETS, and more from OncLive this week.

Datopotamab deruxtecan approaches approval in Europe as an option for patients with previously treated hormone receptor–positive breast cancer.

OQY-3258 (ESG401) showed preliminary efficacy in multiple breast cancer subtypes, including TNBC and HR+/HER2- breast cancer.

Panelists discuss how emerging data on HER2-ultralow breast cancer is informing treatment decisions, particularly regarding the potential role of trastuzumab deruxtecan, while acknowledging the need for careful patient selection and consideration of traditional treatment sequences.