ALK and non-small cell lung carcinoma: As a result, several novel therapies such as epidermal growth receptor (EGFR) tyrosine kinase inhibitors (TKIs) (e.g., erlotinib, gefitinib, and afatinib) and anaplastic lymphoma kinase (ALK) inhibitors (e.g., crizotinib, ceritinib, and alectinib) are now at the forefront of personalized medicine for the treatment of non‐small‐cell lung cancer (NSCLC).