OUTLINE: This is a randomized, multicenter study. Patients are stratified according to performance status (0 vs 1); disease symptoms, including pain, weight loss, loss of appetite, malaise, and fever of unknown origin (yes vs no); weight loss during the past 6 months (more than 5% vs 5% or less); and disease-free interval (more than 6 months vs 6 months or less). Patients are randomized to 1 of 2 treatment arms.