OBJECTIVES: I. Compare the 1 year survival rate, time to worsening of disease related symptoms, and progression free survival in chemotherapy naive patients with stage IIIB or IV non-small cell lung cancer treated with one of two doses of ZD 1839 or placebo combined with gemcitabine and cisplatin.
OUTLINE: This is a randomized, double blind, placebo controlled, multicenter study. Patients are randomized to one of three treatment arms. Patients receive gemcitabine and cisplatin combined with lower dose oral ZD 1839 (arm I), higher dose oral ZD 1839 (arm II), or placebo (arm III).
PROJECTED ACCRUAL: A total of 1,029 patients (343 per arm) will be accrued for this study.