OUTLINE: This is a randomized, double-blind, placebo-controlled, multicenter study. Patients are stratified according to number of organs with metastases (1 vs more than 1) and ECOG performance status (0 vs 1). Patients are randomized to one of two treatment arms. Arm I: Patients receive oral AE-941 (Neovastat) twice a day. Arm II: Patients receive oral placebo twice a day. Treatment continues in the absence of unacceptable toxicity or disease progression. Quality of life is assessed on day 1 and then every 8 weeks thereafter. Patients are followed every 4 weeks until disease progression and then every 8 weeks thereafter.