OUTLINE: This is a multicenter study. Patients receive oral capecitabine twice daily on days 1-14. Treatment continues every 21 days for up to 8 courses in the absence of disease progression or unacceptable toxicity. Quality of life is assessed on days 1 and 8 of the first course of treatment, on day 1 of each course thereafter, and at treatment failure. Patients are followed every 3 months until disease progression.