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Everolimus vs Mycophenolate Mofetil in Combination With Tacrolimus: A Propensity Score-matched Analysis in Liver
P De Simone1, P Carrai1, L Coletti1
1Hepatobiliary Surgery and Liver Transplantation, University of Pisa Medical School Hospital, Pisa, Italy.
Background:
No trial has investigated the long-term outcome of everolimus (EVR)-incorporating immunosuppression vs tacrolimus (TAC) and mycophenolate mofetil (MMF) after liver transplantation.
Materials And Methods:
With a propensity score methodology, 178 recipients on TAC and MMF were compared to 178 patients on TAC and EVR.
Results:
At a median (interquartile range) follow-up of 45 (46.3) months, the probability of treated biopsy-proven acute rejection, graft loss, and death was 36.6% for MMF and 28.1% for EVR (P = .0891). Treated biopsy-proven acute rejection was numerically lower for EVR (3.3% vs 7.3%, P = .09), while adverse events (70.2% vs 58.9%, P = .02) and drug discontinuations (21.3% vs 11.8%, P = .01) were significantly higher with regard to hypercholesterolemia (P = .001), thrombocytopenia (P = .0062), and edema (P = .0107). Patients on MMF showed more hypertension (P = .0315), tremor (P = .0006), cytomegalovirus infection (P = .0165), and malignancies (P = .0175). EVR was associated with lesser deterioration in mean (SD) renal function at the latest follow-up (-2.2 (1.8) vs -5.1 (3.2) mL/min/1.73 m2, t = 3.6, P = .005).
Conclusions:
The efficacy of the combination of TAC and EVR is comparable to that of TAC and MMF. Drug discontinuations and adverse events were higher for patients on EVR, but these latter showed less hypertension, cytomegalovirus infection, and renal dysfunction. The observed reduction in posttransplant malignancies for EVR requires longer follow-up to be confirmed.
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