Enteric-coated mycophenolate sodium versus mycophenolate mofetil maintenance immunosuppression: outcomes analysis of the United Network for Organ Sharing/Organ Procurement and Transplantation Network database.
A large, retrospective database analysis was conducted to evaluate the long-term outcomes of patients who received enteric-coated mycophenolate sodium (EC-MPS) versus mycophenolate mofetil (MMF) maintenance immunosuppression at the time of discharge.All primary kidney transplant patients who received either EC-MPS or MMF at time of discharge in the United Network for Organ Sharing/Organ Procurement and Transplantation Network database from 2004 to 2007 were included. Patients were excluded if they had received a previous kidney transplant, multiple organs, or combination therapy with everolimus at the time of discharge. Outcomes included graft failure, death-censored graft failure, and death with functioning graft, biopsy-proven acute rejection (BPAR), new-onset diabetes mellitus, and renal function. The propensity score method was used to adjust for nonrandomized treatment selection. A total of 48,458 patients were included in the analysis.At time of discharge, 10.4% of patients received EC-MPS (n=5057) and 89.6% received MMF (n=43,401). Propensity score-adjusted regression analysis showed that patients who received EC-MPS were at increased risk of BPAR (hazards ratio, 1.167; 95% confidence interval, 1.056-1.129; P=0.002).The adjusted BPAR rate difference at 3 years posttransplantation was less than 2% (13.6% vs. 11.7%); statistically significant because of the large number of patients included in the analysis, but a difference that may not be clinically meaningful. No differences in graft survival, new-onset diabetes mellitus, or renal function were observed between the treatment groups.
Irish, W; Arcona, S; Gifford, RJ; Baillie, GM; Cooper, M
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