Randomized trial of conversion from mycophenolate mofetil to azathioprine 6 months after renal allograft transplantation. |
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Authors: | R P Wüthrich S Cicvara P M Ambühl U Binswanger |
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Institution: | Division of Nephrology, Department of Medicine, University Hospital, Zürich, Switzerland. |
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Abstract: | BACKGROUND: In the first year after renal allograft transplantation, triple therapy immunosuppression with cyclosporin (CsA), prednisone (P), and mycophenolate mofetil (MMF) is superior to a triple therapy treatment that includes azathioprine (AZA) instead of MMF. Whether long-term treatment with CsA-P-MMF is better than treatment with CsA-P-AZA is a matter of debate, as 3-year graft survival is similar in MMF- and AZA-treated patients. The purpose of the present study was to examine the short-term effect of changing MMF to AZA in low-risk renal allograft recipients 6 months after transplantation. METHOD: This was a randomized, open-label single-centre study, recruiting 48 low risk renal allograft recipients on CsA-P-MMF therapy 6 months after transplantation, comparing the outcome with continued MMF treatment (2 g b.i.d.) (group A, n=22) or switching MMF to AZA (1 mg/kg) treatment (group B, n=26). RESULTS: The outcome after a 6-months follow-up of patients in group A and group B was similar. Treatment failure rates (defined as clinically diagnosed acute rejection episodes) were 4.5% in group A and 3.8% in group B. There were no patient deaths and no graft failures during the 6-months observation period. Graft function was excellent and similar in both groups. CONCLUSION: Replacing MMF with AZA 6 months after transplantation in low-risk renal allograft recipients is safe and is not associated with altered graft function in the short term. |
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Keywords: | CsA dosage low-risk kidney transplant recipients mycophenolate mofetil to azathioprine conversion prednisone short-term graft survival six-month trial |
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