Abstract
Since the approval of trastuzumab for the treatment of breast cancers more than two decades ago, many clinically effective targeted anti-cancer therapies have been developed. Here we consider the evidence that supports genomics-guided drug development and review the concept of oncogene addiction, including recent findings that inform this therapeutic approach. We consider non-oncogene addiction and how this synthetic-lethal paradigm could expand the range of new therapies, particularly for currently undruggable cancers. We discuss how CRISPR-based genetic screening is enhancing the ability to identify new targets. We conclude by considering opportunities for expanding the scope and refining the use of precision cancer medicines.
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