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Transplant Proc. 2007 Jan-Feb;39(1):103-8.

Conversion from mycophenolate mofetil to enteric-coated mycophenolate sodium in stable maintenance renal transplant patients: pooled results from three international, multicenter studies.

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  • 1University Hospital Essen, Department of Nephrology, Essen, Germany.



Mycophenolate mofetil (MMF) is effective in renal transplant patients but concerns remain over its gastrointestinal (GI) tolerability. Enteric-coated mycophenolate sodium (EC-MPS; myfortic) has been developed with the intention of improving mycophenolic acid-related GI tolerability.


Data were pooled in a planned analysis of three subprotocols of the myfortic Prospective Multicenter Study (myPROMS). In a 6-month study, efficacy and safety of converting stable renal transplant recipients from MMF to a bioequivalent dose of EC-MPS for mycophenolic acid exposure were evaluated. Treatment efficacy was recorded and graft function was assessed by measuring serum creatinine and estimating creatinine clearance. Adverse events (AEs) and infections were monitored and the incidence of EC-MPS dose changes was recorded.


A total of 588 patients were recruited, 564 (96%) of whom completed the study. The rate of treatment failure (defined as biopsy-proven acute rejection, graft loss, or death) was 1.9%, with no episodes of graft loss and only one death reported during the study. Renal function remained stable throughout the trial. EC-MPS was well tolerated; the majority of AEs were mild or moderate in severity. Dose reductions or interruptions were required by 6.3% and 1.9% of patients, respectively. Gastrointestinal AEs occurred in 138 patients (23.5%). The rate of dose adjustment as a result of a GI AE was 2.2%.


Equimolar conversion from MMF to EC-MPS in maintenance renal transplant patients was safe and maintained efficacy.

[PubMed - indexed for MEDLINE]
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