...- All patients must have pathologic evidence of advanced lung adenocarcinoma (stage IIIB or stage IV) confirmed histologically/cytologically at NU, MSKCC, or DFCI and EITHER previous RECIST-defined response (CR or PR) to an EGFR-TKI (erlotinib or gefitinib) or an investigational EGFR TK inhibitor OR a documented mutation in the EGFR gene (G719X, exon 19 deletion, L858R, L861Q)...