PROTOCOL OUTLINE: This is a randomized, double blind, multicenter study. Patients are randomized into initial therapy with prednisone plus weekly placebo or prednisone plus weekly oral methotrexate. Patients who do not respond to treatment within 5 days are taken off study. If methotrexate toxicity dose not occur after 2 weeks, methotrexate is increased by one tablet per week until a maximum tolerated dose (MTD) is achieved. The MTD of methotrexate or the matching placebo dose is continued for 12 months in the absence of toxicity. Once 12 continuous months of remission are achieved, methotrexate or placebo is tapered to discontinuation.