Author:

Keywords:

Science & Technology, Life Sciences & Biomedicine, Rheumatology, MYCOPHENOLATE-MOFETIL, IMMUNOSUPPRESSIVE THERAPY, PULSE METHYLPREDNISOLONE, COMBINATION, Adolescent, Adult, Azathioprine, Cyclophosphamide, Dose-Response Relationship, Drug, Drug Therapy, Combination, Epidemiologic Methods, Female, Humans, Immunosuppressive Agents, Injections, Intravenous, Kidney Function Tests, Lupus Nephritis, Male, Middle Aged, Proteinuria, Treatment Outcome, Young Adult, 1103 Clinical Sciences, 1107 Immunology, 1117 Public Health and Health Services, Arthritis & Rheumatology, 3202 Clinical sciences, 3204 Immunology

Abstract:

OBJECTIVE: To update the follow-up of the Euro-Lupus Nephritis Trial (ELNT), a randomized prospective trial comparing low-dose (LD) versus high-dose (HD) intravenous (IV) cyclophosphamide (CY) followed by azathioprine (AZA) as treatment for proliferative lupus nephritis. PATIENTS AND METHODS: Data regarding survival and kidney function were prospectively collected during a 10-year period for the 90 patients randomized in the ELNT, except in 6 lost to follow-up. RESULTS: Death, sustained doubling of serum creatinine and end-stage renal disease rates did not differ between the LD and HD group (11% vs 4%, 14% vs 11% and 5% vs 9%, respectively) nor did mean serum creatinine, 24-h proteinuria and damage score at last follow-up. Most patients in both groups were still treated with glucocorticoids, other immunosuppressants and blood pressure lowering drugs. We confirm, after 10 years of follow-up, the positive predictive value for a good outcome of an early drop in proteinuria in response to initial immunosuppressive therapy. CONCLUSION: Our data confirm that a LD IVCY regimen followed by AZA - the "Euro-Lupus regimen" - achieves good clinical results in the very long-term.