Steroid-dependent nephrotic syndrome in lupus nephritis. Response to chlorambucil.

Nephrotic syndrome associated with mesangial lupus nephritis developed in a young woman. The heavy proteinuria exhibited a striking steroid-dependent course during a three-year period of time, with ten relapses occurring whenever attempts were made to withdraw prednisone therapy. A prolonged remission was induced by the administration of chlorambucil.