Herceptin Research - Side-effects, Breast Cancer, Treatment, Therapy

Herceptin Research Today is a free monthly online journal that collates and summarizes the latest research about Herceptin, including details on side-effects, breast cancer, treatment, therapy.


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Trastuzumab emtansine in the treatment of HER-2-positive metastatic breast cancer patients.

Bighin C, Pronzato P, Del Mastro L

Department of Medical Oncology, IRCCS (Istituto di Ricovero & Cura a Carattere Scientifico)- AOU (Azienda Ospedaliera Universitaria) San Martino-IST (Istituto Nazionale per la Ricerca sul Cancro), Genova, Italy.

Hurvitz SA, Dirix L, Kocsis J et al. Phase II randomised study of trastuzumab emtansine versus trastuzumab plus docetaxel in patients with human epidermal growth factor receptor 2-positive metastatic breast cancer. J. Clin. Oncol. 31(9), 1157-1163 (2013). The introduction of trastuzumab in the treatment of HER-2-positive metastatic breast cancer patients favorably changed the natural history of this disease. First-line treatment with trastuzumab and taxanes demonstrated a significant improvement in overall survival and progression-free survival compared with taxane alone. Despite such a major advance, HER-2-positive metastatic breast cancer will eventually progress in most patients. Moreover chemotherapy-associated toxicities, such as myelosuppression (docetaxel) and neurotoxicity (paclitaxel), may hamper the possibility to adequately treat metastatic breast cancer and may have a negative effect on patients' quality of life. The need for more effective and better-tolerated therapy for HER-2-positive metastatic breast cancer led to the development of new anti-HER-2 agents. Pertuzumab and trastuzumab emtansine are two of the new agents that will change the approach to the treatment of HER-2-positive metastatic breast cancer. Pertuzumab is a humanized monoclonal antibody that binds HER-2 at a different epitope of the HER-2 extracellular domain (subdomain II) than that at which trastuzumab binds. Trastuzumab emtansine is a HER-2-targeted antibody-drug conjugate, composed of the cytotoxic microtubule polymerization inhibitor DM1 that is conjugated to the monoclonal antibody trastuzumab, able to selectively deliver a cytotoxic agent to HER-2-positive tumor cells. TDM-1 is superior and less toxic than lapatinib plus capecitabine in metastatic breast cancer patients previously treated with trastuzumab and taxanes, and its role as a first-line therapy is currently under investigation.

Published 10 July 2013 in Future Oncol, 9(7): 955-7.
Full-text of this article is available online (may require subscription).


Articles on Herceptin published 8 July 2013:

Identification of caveolin-1 as a potential causative factor in the generation of trastuzumab resistance in breast cancer cells.   J Cancer, 4(5): 391-401.

The oncogenic tyrosine kinase receptor ErbB2 is a prognostic factor and target for breast cancer therapeutics. In contrast with the other ErbB receptors, ErbB2 is hardly internalized by ligand induced mechanisms, indicating a prevalent surface expression. Elevated levels of ErbB2 in tumor cells are associated with its defective endocytosis and down regulation. Here we show that caveolin-1 expression in breast cancer derived SKBR-3 cells (SKBR-3/Cav-1) facilitates ligand induced ErbB2 ... [Abstract] [Full-text]

Prognostic factors of brain metastases from breast cancer: Impact of┬átargeted therapies.   Breast.

[Abstract] [Full-text]

Retinoic Acid Receptor Alpha Amplifications and Retinoic Acid Sensitivity in Breast Cancers.   Clin Breast Cancer.

[Abstract] [Full-text]

LGR5 is a biomarker for stratification of HER-2 positive breast cancer patients and personalized treatment.   Med Hypotheses.

[Abstract] [Full-text]

Are monoclonal antibodies a safe treatment for cancer during pregnancy?   Immunotherapy, 5(7): 733-41.

Monoclonal antibodies (mAbs) are the cornerstone of the treatment of several types of tumors, but their use in pregnant women is not clearly defined. Here, we report and analyze all available data on mAb treatment in pregnant cancer patients. A literature search was performed from 2000 until January 2013 and all articles addressing safety of mAbs during pregnancy were reviewed. We found very few data on the use of bevacizumab in pregnant women. However, owing to its antiangiogenic effects and ... [Abstract] [Full-text]

Construction and characterization of a new chimeric antibody against HER2.   Immunotherapy, 5(7): 703-15.

Aim: Immunotherapy with anti-HER2 antibodies has shown promising results in patients with HER2-positive breast cancer. We have recently reported characterization of a mouse monoclonal antibody (mAb) against HER2, which binds to an epitope different from that recognized by trastuzumab and specifically inhibits proliferation of tumor cells overexpressing HER2. In the present study we report chimerization of this antibody. Materials & methods: The immunoglobulin variable region heavy and light ... [Abstract] [Full-text]

Health-Related Quality of Life With Adjuvant Docetaxel- and Trastuzumab-Based Regimens in Patients with Node-Positive and High-Risk Node-Negative, HER2-Positive Early Breast Cancer: Results from the BCIRG 006 Study.   Oncologist.

[Abstract] [Full-text]

Pharmacogenomics Variation in Drug Metabolizing Enzymes and Transporters in Relation to Docetaxel Toxicity in Lebanese Breast Cancer Patients: Paving the Way for OMICs in Low and Middle Income Countries.   OMICS, 17(7): 353-67.

Abstract We investigated the association of genetic polymorphisms in drug metabolizing enzymes (DMEs) and transporters in patients with docetaxel-induced febrile neutropenia, by a new high-throughput DMEs and transporters (DMETPlus) microarray platform, characterizing 1936 single nucleotide polymorphisms (SNPs) in 225 genes. We recruited 100 Lebanese breast cancer patients from a consecutive cohort of 277 patients who received docetaxel either alone, or in combination with trastuzumab. Out of ... [Abstract] [Full-text]


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