History of pneumonitis attributed to an EGFR inhibitor; history of radiation pneumonitis is allowed provided steroid administration for pneumonitis was not required Active non-infectious pneumonitis >= grade 2 or history of grade 3 non-infectious pneumonitis requiring steroids within the past 12 months; or any history of grade 4 non-infectious pneumonitis History of, or any evidence of active, non-infectious pneumonitis Patients must not have history of (non-infectious) pneumonitis that required steroids or current pneumonitis Patients must not have a history of (non-infectious) pneumonitis that required steroids or evidence of active pneumonitis Patients must not have history of (non-infectious) pneumonitis that required steroids or current pneumonitis Patients may not have a known or confirmed history of pneumonitis Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis Patients must not have a history of immune-mediated pneumonitis or colitis that required interruption of therapy or treatment of steroids