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  • Title: De novo low-dose sirolimus versus mycophenolate mofetil in combination with extended-release tacrolimus in kidney transplant recipients: a multicentre, open-label, randomized, controlled, non-inferiority trial.
    Author: Huh KH, Lee JG, Ha J, Oh CK, Ju MK, Kim CD, Cho HR, Jung CW, Lim BJ, Kim YS, RECORD Study.
    Journal: Nephrol Dial Transplant; 2017 Aug 01; 32(8):1415-1424. PubMed ID: 28810721.
    Abstract:
    BACKGROUND: Most of the previous studies reported that tacrolimus (TAC) with sirolimus (SRL) was associated with worse post-transplant outcomes in kidney transplantation, compared with TAC with mycophenolate mofetil (MMF). These might be attributable to high-dose SRL. However, outcomes using low-dose SRL with TAC for kidney transplantation are uncertain. The aim of this study was to assess the efficacy and safety of low-dose SRL with extended-release tacrolimus (ER-TAC) versus MMF with ER-TAC. METHODS: We randomly assigned 158 renal transplant patients to receive low-dose SRL or MMF in combination with ER-TAC and corticosteroid. The primary endpoint was the composite efficacy failure rate, including biopsy-proven acute rejection (BPAR), graft loss, death or loss to follow-up, within 12 months post-transplantation. This trial is registered with ClinicalTrial.gov (number NCT01680952). RESULTS: The efficacy failure rate was 6.6% in the low-dose SRL group and 13.3% in the MMF group in the intention-to-treat population (absolute difference, 6.8%; 95% confidence interval, -2.8% to 16.3%). The incidence of BPAR within 12 months post-transplantation was 5.3% in the low-dose SRL group and 13.3% in the MMF group (P = 0.09). The mean estimated glomerular filtration rate at 12 months post-transplantation was 53.2 mL/min/1.73 m2 in the low-dose SRL group and 52.4 mL/min/1.73 m2 in the MMF group (P = 0.76). The incidences of adverse events and serious adverse events were similar between groups. CONCLUSION: Low-dose SRL with ER-TAC was not inferior to MMF with ER-TAC with respect to efficacy and safety. When used for immunosuppression in kidney transplantation, low-dose SRL with ER-TAC can effectively prevent acute rejection and preserve renal function.
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