- Histologically or cytologically confirmed NSCLC: Either histologic or cytologic proof of a newly diagnosed non-small cell lung cancer is required. A biopsy with histology is preferred, but cytology is allowed. Histology or cytology from involved mediastinal or supraclavicular lymph nodes alone will be allowed if a separate distal primary lesion is clearly evident on radiographs (i.e., a second biopsy will not be required).