General Information
Afatinib dimaleate, the dimaleate salt form of afanitib, is an orally available antineoplastic agent. It is indicated for the first-line treatment of patients with metastatic non-small cell lung cancer (NSCLC) whose tumors have epidermal growth factor receptor (EGFR) exon 19 deletions or exon 21 (L858R) substitution mutations as detected by an FDA-approved test. In the past, standard treatment with a platinum-based chemotherapy doublet regimen was considered standard first-line therapy for all patients with NSCLC. However, emerging evidence has identified subpopulations in which targeted therapy is more effective, leading to the development of mutation-specific drugs.