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Kamar N.,Dialysis and Organ Transplantation | Rostaing L.,Dialysis and Organ Transplantation | Cassuto E.,Hopital Pasteur | Villemain F.,Angers University Hospital Center | And 6 more authors.
Clinical Nephrology | Year: 2012

Mycophenolic acid (MPA) dose is frequently reduced in tacrolimus-treated kidney transplant patients, but alternatively the recommended MPA dose can be maintained with reduced tacrolimus exposure. In a 6-month, multicenter, randomized, openlabel study, maintenance kidney transplant patients receiving MPA (mycophenolate mofetil 1g/d or enteric-coated mycophenolate sodium (EC-MPS) 720 mg/d) and tacrolimus were randomized to convert to EC-MPS 1,440 mg/d with reduced tacrolimus (n = 46), or receive EC-MPS 720 mg/d with unchanged tacrolimus (n = 48). Mean estimated GFR (eGFR, aMDRD) at Month 6 was 49.1 ± 11.1 and 44.7 ± 11.5 ml/min/1.73 m2 in the EC-MPS 1,440 mg and 720 mg groups, respectively (p = 0.07). The primary endpoint, change in eGFR from Day 0 to Month 6, was 2.48 ± 0.95 ml/min/1.73 m2 with EC-MPS 1,440 mg and -0.48 ± 0.93 ml/min/1.73 m2 with EC-MPS 720 mg (difference 2.96 ml/min/1.73 m2; 95% CI 0.32-5.60; p = 0.028). There were no deaths, graft losses or acute rejections. Adverse events were more frequent with EC-MPS 1,440 mg than 720 mg (66.7% vs. 44.7%, p = 0.034). Adverse events with suspected relation to EC-MPS occurred in 26.7% and 21.3% of patients, respectively (p = 0.59). Conversion of kidney transplant patients to increased MPA dosing using EC-MPS 1,440 mg/d, with reduced tacrolimus exposure, appears an effective immunosuppression strategy and may improve renal function. Adverse events overall, but not those with a suspected relation to EC-MPS, were higher with ECMPS 1,440 mg/d. © 2012 Dustri-Verlag Dr. K. Feistle.

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