RecruitingClinical trialComprehensive Genomic Analysis in Tissue Samples From Patients With Recurrent or Stage IV Non-small Cell Lung CancerThis research trial studies comprehensive genomic analysis in tissue samples from patients with non-small cell lung cancer that has come back or is stage IV. Comprehensive genomic analysis may identify specific gene mutations (changes in deoxyribonucleic acid \[DNA\]) and help doctors to tailor treatment to target the specific mutations.