Primary Objectives. The primary objective of the trial is to determine if treatment with MMF/Pulse steroids is superior to treatment with CSA in inducing remission from proteinuria over 12 months. The main secondary objective is to determine if treatment with MMF/Pulse steroids is superior to treatment with CSA in inducing remissions which persist for at least 6 months following withdrawal of immunosuppressive therapy but while maintaining ACEI or angiotensin receptor blocker (ARB) therapy.