Pharmacokinetic Analysis of Mycophenolate Mofetil and Enteric-Coated Mycophenolate Sodium in Calcineurin Inhibitor-Free Renal Transplant Recipients

Therapeutic Drug Monitoring
Jochen GraffJan Gossmann

Abstract

Considerable interest exists in identifying calcineurin inhibitor (CNI)-free and thus, less-toxic immunosuppressive regimens, with mycophenolic acid (MPA)-based treatments being a suitable approach. Because pharmacokinetic analyses of MPA treatments in stable CNI-free renal transplant recipients are lacking, the authors aimed at comparing the steady-state pharmacokinetic characteristics of MPA in patients on stable treatment with mycophenolate mofetil (MMF) or enteric-coated mycophenolate sodium (EC-MPS) plus prednisone (≤5 mg/d). In the prospective, nonrandomized, open-label study, patients with stable transplant function since ≥6 months received their routine single dose of either MMF (n = 12) or EC-MPS (n = 11). The MPA plasma concentration was recorded over 12 hours. Parameters assessed were predose MPA concentration (C0), postdose minimum and maximum concentration (Cmin and Cmax), time to maximum concentration (Tmax), and area under the concentration-time curve (AUC) for the 12-hours of exposure (AUC0-12). Baseline characteristics were comparable between both the groups. Consistent with enteric coating, the mean Tmax was significantly longer after the intake of EC-MPS compared with MMF (2.2 versus 0.8 hours; P = 0.0002). T...Continue Reading

References

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