HER-2 positive

In conclusion, this randomized clinical trial met its primary outcome. Culmerciclib plus fulvestrant is well tolerated and leads to a significant gain in PFS of pretreated HR-positive HER2-negative ABC patients.

ET+CDK4/6i use rose up to ∼50 % after 2017, reaching ∼70 % in recent years among women with good PS, but remained ∼50 % in older patients with poor PS. Broader adoption is needed, with less chemotherapy use. Survival outcomes have improved but, causality cannot be confirmed due to the observational design.

This study evidences a substantial shift towards SLNB as the primary axillary surgery following NAT during the study period. This trend emphasizes a preference for less invasive procedures, likely due to the efficacy of neoadjuvant therapy in reducing axillary lymph node involvement.

These findings demonstrate important differences in disease presentation and surgical management between age groups in Turkey, where breast cancer screening ends at age 69. The absence of screening detection in elderly patients, combined with their advanced disease presentation, highlights the need for further investigation with larger, multicenter cohorts to evaluate optimal screening strategies for women beyond age 69.

P2, N=16, Recruiting, Wake Forest University Health Sciences | Trial primary completion date: Dec 2025 --> May 2026

P2, N=37, Active, not recruiting, M.D. Anderson Cancer Center | Trial completion date: Dec 2025 --> Dec 2027 | Trial primary completion date: Dec 2025 --> Dec 2027

This evolving landscape challenges the traditional use of HER2 as a diagnostic marker and underscores the need for a deeper understanding of HER2 biology. This review addresses these complexities, focusing on the emerging HER2-Low and Ultralow subtypes, and evaluates the distinct therapeutic responses across the spectrum of HER2 expression in different BC subtypes.

TQB2440 showed equivalent efficacy, comparable safety, PK, and immunogenicity profiles to reference pertuzumab in the neoadjuvant treatment of patients with HER2-positive early or locally advanced breast cancer.

Emerging evidence indicates that sequential ADC use can be effective despite some cross-resistance, especially when distinct payload mechanisms are employed. Clinical use should consider payload type, timing, and breast cancer subtype, but toxicities remain critical for decision-making. Research providing insights into resistance mechanisms and biomarkers is needed for personalized approaches.

Patients with HR+ /HER2+ BC had lower risks of breast cancer-specific death and higher overall survival rates. Mast cells were enriched in the HR+ /HER2+ BC group, while plasma cells were more abundant in the HR-/HER2+ BC group.In conclusion, HER2+ BC patients benefit differently from current HER2-directed therapies, maybe partly due to the HR status and gene mutations, and they may provide potentially prognostic and predictive value and new treatment strategies for clinicians.

P3, N=920, Active, not recruiting, Jazz Pharmaceuticals | Trial completion date: May 2026 --> Jul 2027 | Trial primary completion date: Dec 2025 --> Jul 2026