Preliminary research suggests that the second-generation tyrosine kinase inhibitor (TKI) dacomitinib (see right structure)may improve progression-free survival (PFS) in patients with advanced non-small-cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations.
Noting that the majority of patients develop resistance to the first-generation TKIs, such as gefitinib and erlotinib (below structures from left and right side respectively), Pasi Jänne (Dana Farber Cancer Institute, Boston, Massachusetts, USA) and co-workers explain that alternative agents are needed to improve patient outcomes.
The open-label, phase II trial included 89 treatment-naïve patients with stage IIIB or IV NSCLC who were selected for dacomitinib once-daily treatment on the basis of clinical markers (never or former light smokers) or molecular markers (absence of KRASmutation in non-Asian patients or EGFR mutation).
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