OUTLINE: This is a randomized, multicenter study. Patients are stratified by center, stage of disease (IIIB vs IV), and performance status (0 vs 1 vs 2). Patients are randomized to one of three treatment arms. Patients receive either vinorelbine IV, gemcitabine IV, or both on days 1 and 8 of each 21 day course. Patients who achieve an objective response or stable disease after 3 courses receive 3 more courses (for a total of 6 courses). Quality of life is assessed before treatment, after course 4 (or 3 weeks after course 3, if therapy is stopped), and at 21 days after course 6 (or 12 weeks after course 3).