Abstract
A randomized phase III trial evaluated the effect of adding lapatinib to paclitaxel as first-line therapy for patients with metastatic breast cancer whose tumors were negative or untested for human epidermal growth factor receptor 2 (HER2) overexpression. Progression-free survival was prolonged significantly in patients with HER2-overexpressing tumors, which indicates that lapatinib exerts its main effects via the HER2 pathway.
MeSH terms
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Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
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Breast Neoplasms / drug therapy*
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Breast Neoplasms / metabolism*
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Breast Neoplasms / pathology
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Clinical Trials, Phase III as Topic
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Female
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Humans
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Lapatinib
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Paclitaxel / administration & dosage
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Quinazolines / administration & dosage
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Randomized Controlled Trials as Topic
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Receptor, ErbB-2 / metabolism*
Substances
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Quinazolines
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Lapatinib
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Receptor, ErbB-2
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Paclitaxel