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. 2003;5(2):96-100.
doi: 10.1186/bcr574. Epub 2003 Feb 3.

Trastuzumab, an appropriate first-line single-agent therapy for HER2-overexpressing metastatic breast cancer

Carlos L Arteaga  1
Affiliations

Trastuzumab, an appropriate first-line single-agent therapy for HER2-overexpressing metastatic breast cancer

Carlos L Arteaga. Breast Cancer Res. 2003.

Abstract

Overexpression of the HER2/Neu (ErbB2) proto-oncogene is associated with breast cancer progression and poor patient prognosis. Herceptin (trastuzumab) is a humanized IgG1 against the ectodomain of the HER2 receptor. In combination with chemotherapy, it induces regression of HER2-overexpressing metastatic breast tumors and prolongs patient survival. Single-agent Herceptin in patients with HER2-amplified breast tumors also induces a definite objective response and clinical benefit rates, and is well tolerated. These data suggest that Herceptin is an effective first-line single-agent therapy for a predictable cohort of metastatic breast cancers and can therefore be used as a platform for therapeutic discovery against tumors that overexpress HER2.

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