- Histologic documentation of primary lung carcinoma, non-squamous histology with activating epidermal growth factor receptor (defined as deletion 19 or exon 21 L858R mutation); Note: EGFR mutation testing must be performed at a Clinical Laboratory Improvement Amendments (CLIA) certified lab; either institutional or through a commercial laboratory (e.g. Genzyme, Response Genetics, etc); the laboratory report from the commercial laboratories report the specific mutations detected, and the method of detecting the exon 19 and exon 21 L858R point mutations must be available