Lapatinib: a tyrosine kinase inhibitor with a clinical role in breast cancer

Authors: Mukherjee, A; Dhadda, AS; Shehata, M; Chan, Stephen

Source: Expert Opinion on Pharmacotherapy, Volume 8, Number 13, September 2007 , pp. 2189-2204(16)

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Abstract:

Lapatinib is a dual (ErbB-1 and ErB-2) receptor tyrosine kinase inhibitor (TKI) that was recently approved by the FDA for the treatment of advanced breast cancer. It shows synergy with trastuzumab, and has demonstrated clinical activity in trastuzumab-resistant tumour. This paper reviews the drug development of lapatinib from preclinical studies to the pivotal Phase III trial and ongoing clinical studies. Areas of interest include the advantages of small molecule TKIs versus antibodies in targeting HER receptors and the efficacy of lapatinib in the treatment of cerebral metastases. The surprisingly high response rate in inflammatory breast cancer raises the possibility of other novel predictive biomarkers. The potential for combination and sequencing with other biological and cytotoxic agents is both exciting and challenging.

Keywords: biomarkers; breast cancer; lapatinib; trastuzumab resistance

Document Type: Drug Evaluation

DOI: http://dx.doi.org/10.1517/14656566.8.13.2189

Publication date: 2007-09-01

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