Quality of life was assessed by self-report questionnaires in 30 patients receiving dose-intensive chemotherapy for either non-small-cell lung cancer (20 patients) or recurrent head and neck cancer (10 patients). Megestrol acetate was given daily to try to improve appetite and prevent the weight loss usually associated with this chemotherapy. Appetite did not change significantly overall during the first 4 weeks of chemotherapy, but it did improve in those patients still receiving chemotherapy at 8 weeks. Changes in global quality of life were significantly correlated with changes in appetite, fatigue, energy level, and physical function. Thus, these parameters may have more relevance to patients' perceptions of quality of life than does weight change, and should be used more frequently as endpoints in studies of supportive care and palliative treatment of patients with cancer.