Benjamin Walbaum: Breast Cancer Weekly Highlights
Benjamin Walbaum/LinkedIn

Benjamin Walbaum: Breast Cancer Weekly Highlights

Benjamin Walbaum, Medical Oncologist at Pontifical Catholic University of Chile, shared a post on LinkedIn:

Breast Cancer Weekly Highlights | April 19–26, 2026
My take from this week’s publications in breast cancer

 

1. Association Between Tumor Size and Nodal Positivity for HER2+ and Triple-Negative Early-Stage Breast Cancer
Journal: Annals of Surgical Oncology
T1c HER2+ and TNBC tumors have substantial occult nodal risk, supporting careful preoperative axillary assessment and consideration of neoadjuvant therapy.

2. Comparison of T-DXd-Associated Pulmonary Toxicity in Real-World Settings and Clinical Trials
Journal: npj Breast Cancer
Real-world ILD severity with T-DXd may be higher than in phase III trials, reinforcing the need for structured monitoring and early recognition.

3. Durvalumab in Combination With Neoadjuvant Chemotherapy in Early Triple-Negative Breast Cancer: Long-Term Analysis From the GeparNuevo Trial
Journal: Journal of Clinical Oncology
Long-term follow-up supports durable survival benefit with neoadjuvant durvalumab in early TNBC, even without adjuvant immunotherapy continuation.

4. Including Tumor-Infiltrating Lymphocytes into the PREDICT Prognostic Model for Triple-Negative Breast Cancer Survival
Journal: Annals of Oncology
Adding sTILs to PREDICT improves risk stratification in early TNBC and may help identify patients suitable for future de-escalation strategies.

5. Transcriptomic Insights into Lobular Breast Cancer Biology and Patient Outcomes: Analysis of the MINDACT Clinical Trial
Journal: CCR
Lobular breast cancer has distinct transcriptomic biology that may explain late relapse, endocrine sensitivity, and the need for ILC-specific risk refinement.

6. Identification of Cycling Regulatory T Cell Precursors as Conductors of Immune Escape During Breast Carcinoma Progression
Journal: Cancer Cell
Immune escape may begin early during DCIS-to-invasive progression, with cycling Tregs emerging as potential biomarkers and therapeutic targets.

7. Stage I TNBC: Moving From One-Size-Fits-All to a Personalized Approach
Journal: ASCO Educational Book
Stage I TNBC should not be managed as a single entity; tumor size, TILs, and emerging biomarkers may help balance overtreatment and recurrence risk.

8. The Evolving Landscape of CDK Inhibitor Use in BC Therapy and Beyond
Journal: Nature Reviews Drug Discovery
The next decade of CDK inhibition will require better biomarkers, rational sequencing, and next-generation inhibitors to overcome resistance.

9. Re-Evaluating Antibody–Drug Conjugate Linker Stability: Assessment, Interpretation, and Clinical Translation
Journal: Annals of Oncology
For ADCs, “more stable” does not necessarily mean “better”; clinical performance depends on the full ADC system, not linker stability alone.

10. How I Read a Clinical Trial Report? A Primer for Busy Clinicians
Journal: JCO Oncology Practice
Before asking whether a trial is statistically positive, we should ask whether it is clinically meaningful, generalizable, ethically controlled, and relevant to the patient in front of us.”

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