Tacrolimus prolonged release in kidney transplantation.
Lack of improvement in long-term post-transplant outcomes in recent times has highlighted nonadherence to immunosuppressive therapy as a major risk factor for poor patient outcomes. A once-daily immunosuppressive dosing regimen has been shown to be associated with improved patient adherence and, possibly, better long-term outcomes. Consequently, tacrolimus prolonged release (Advagraf) has been developed to ensure similar efficacy and safety to Prograf, with the added benefit of once-daily dosing. Phase II pharmacokinetic studies have demonstrated that patients can be converted from Prograf to Advagraf on a one-to-one total daily-dose basis and that trough levels can be monitored using the systems already in place. Studies investigating de novo use have shown that Advagraf can be initiated within the same dose range as Prograf, and that trough levels should be monitored over time, with the dose adjusted accordingly to maintain exposure within the appropriate therapeutic range. Large multicenter Phase III studies have demonstrated the good long-term efficacy and safety profiles of Advagraf, and suggest that Advagraf also has the potential to provide the added benefits of lower inter- and intrasubject variability compared with Prograf. In one large Phase III study, measures of renal function also favored Advagraf over Prograf. In conclusion, once-daily Advagraf treatment could potentially enhance post-transplantation adherence to medication and, consequently, improve long-term graft protection while maintaining adequate immunosuppression.
Krämer
Bernhard K
BK
Medizinische Klinik I, Marienhospital Herne, University of Bochum, Germany. bernhard.kraemer@marienhospital-herne.de