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Deprecated: Implicit conversion from float 278.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Transplant+Direct 2018 ; 4 (7): ä Nephropedia Template TP
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Nuclear Factor of Activated T Cell-regulated Cytokine Gene Expression for Adjustment of Tacrolimus in Kidney Transplant Recipients: A Randomized Controlled Pilot Trial #MMPMID30046659
Transplant Direct 2018[Jul]; 4 (7): ä PMID30046659show ga
Background: The aim of this pilot study was to assess the feasibility of a pharmacodynamics assay that measures Nuclear Factor of Activated T Cell?dependent cytokines expressed as % mean residual expression (MRE) to adjust tacrolimus (tac) dose (intervention [INT] arm) in comparison with the standard of care of tac trough levels (control [CTL] arm). Methods: We conducted a single-center randomized controlled trial involving 40 stable kidney transplant recipients over 1 year. In the INT arm, the dose of tac was reduced by 15% if the MRE was less than 20% and was increased by 15% if the MRE was greater than 60%. Controls were adjusted based on tac trough levels. Results: There was a median of 2 tac dose changes per arm. Ten subjects had 1 or more infections in the INT arm and 6 subjects had 1 or more infection in the CTL arm. Rates for hospitalizations, rejections, malignancies and death were similar in both arms. In subjects whose tac dose was not adjusted in the first 6 months, those with infections had a lower MRE at enrollment compared with those without infections (P = 0.049). This was not true for tac trough levels (P = 0.80). There was no correlation between MRE and rejection. Conclusions: Our study suggests that adjusting tac based on this pharmacodynamics assay is feasible. Quantitative analysis of nuclear factor of activated T-regulated gene expression may serve as a reliable assay to lower tac dosing. Further studies with larger populations are needed.