HER2: a never ending story

Article Oncology

Clinical, pathological, and PAM50 gene expression features of HER2-low breast cancer

Francesco Schettini et al.

Summary: Novel antibody-drug conjugates targeting HER2 have shown high activity in HER2-negative breast cancer with low HER2 expression, but the clinical and molecular characteristics of HER2-low breast cancer remain unclear. This study reveals that HER2-low is more common in HR-positive disease than in TNBC, and emphasizes the significant biological heterogeneity of HER2-low BC, highlighting the importance of reproducible and sensitive assays for measuring low HER2 expression.

NPJ BREAST CANCER (2021)

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Review Oncology

Unlocking the potential of antibody-drug conjugates for cancer therapy

Joshua Z. Drago et al.

Summary: Nine ADCs are currently approved for cancer treatment, with many more in development. Advances in synthetic biochemistry have led to a new generation of ADCs promising improved tissue specificity and cytotoxicity. Despite impressive activity against treatment-refractory cancers, challenges such as systemic toxicity and acquired resistance remain. This review discusses the design, mechanism of action, and limitations of ADCs, proposing strategies to maximize their therapeutic benefit for cancer patients.

NATURE REVIEWS CLINICAL ONCOLOGY (2021)

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Article Medicine, General & Internal

Sacituzumab Govitecan in Metastatic Triple-Negative Breast Cancer

A. Bardia et al.

Summary: Patients with metastatic triple-negative breast cancer treated with Sacituzumab govitecan had significantly longer progression-free and overall survival compared to standard chemotherapy, but experienced more frequent myelosuppression and diarrhea as adverse events.

NEW ENGLAND JOURNAL OF MEDICINE (2021)

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Article Oncology

Clinical and molecular characteristics of HER2-low-positive breast cancer: pooled analysis of individual patient data from four prospective, neoadjuvant clinical trials

Carsten Denkert et al.

Summary: The development of anti-HER2 antibody-drug conjugates provides new therapeutic options for breast cancer patients, including those with low expression of HER2. HER2-low-positive breast cancer is a distinct subtype with specific biology, showing differences in response to therapy and prognosis, especially in hormone receptor-negative tumors.

LANCET ONCOLOGY (2021)

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Article Oncology