OUTLINE: This is a randomized, double blind, multicenter study. Patients are randomized to one of two treatment arms receiving different doses of ERA-923. Patients receive oral ERA-923 daily for 48 weeks in the absence of disease progression or unacceptable toxicity. Quality of life is assessed at baseline; at weeks 4, 8, 16, 24, 32, 40, and 48; and then at 4 weeks after last dose. Patients are followed at 4 weeks and then every 3 months thereafter.