IMMUNOSUPPRESSIVE DRUG THERAPY IN LUPUS GLOMERULONEPHRITIS

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Pulse cyclophosphamide is more effective than prednisone alone in preventing renal failure in lupus nephritis. This study sought to define whether pulse methylprednisolone could equal pulse cyclophosphamide in preserving renal function, and whether there was a difference between long and short courses of pulse cyclophosphamide in preventing exacerbations of lupus. Patients were treated with prednisone and randomized to receive concomitantly (a) pulse methylprednisolone monthly for 6 months, or (b) pulse cyclophosphamide monthly for 6 months, or (c) pulse cyclophosphamide monthly for 6 months followed by a maintenance regimen every 3 months for an additional two years. During the final 24 months of the study, all patients continue to receive low dose, alternate day prednisone. Patients treated with pulse methylprednisolone had a higher probability of developing renal insufficiency than patients treated with the long course of pulse cyclophosphamide. In addition, patients treated with only a short course of pulse cyclophosphamide has a higher probability of major exacerbations of lupus than those treated with the extended course of pulse cyclophosphamide.