期刊
THERAPEUTIC DRUG MONITORING
卷 45, 期 1, 页码 102-109出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/FTD.0000000000001035
关键词
tacrolimus; diabetes mellitus; renal transplant; exposure; Cox model
This study aimed to evaluate the relationship between cumulative tacrolimus exposure and the occurrence of new-onset diabetes mellitus (NODM). The study found that tacrolimus concentrations >15 mcg/L increase the risk of NODM.
Purpose:Tacrolimus is an immunosuppressant widely used in transplantations requiring mandatory concentration-controlled dosing to prevent acute rejection or adverse effects, including new-onset diabetes mellitus (NODM). However, no relationship between NODM and tacrolimus exposure has been established. This study aimed to evaluate the relationship between cumulative tacrolimus exposure and NODM occurrence.Methods:A total of 452 kidney transplant patients were included in this study. Sixteen patients developed NODM during the first 3 months after transplant. We considered all tacrolimus concentration (C0) values collected until the diagnosis of NODM in these patients and until 3 months after transplant in the others. New tacrolimus cumulative exposure metrics were derived from the time profile of the tacrolimus morning predose concentration, C0: the percentage of C0 values > cutoff, the average of C0 values above the cutoff, and the percentage of the area under C0 versus time curve, AUC(C0), above the cutoff. The cutoff chosen was 15 ng/mL, corresponding to the higher end of the therapeutic range for the early post-transplant period. The influence of these metrics on NODM and other clinical and biological characteristics was investigated using the Cox models.Results:The percentage of C0 > 15 mcg/L was statistically different between patients with and without NODM (P = 0.01). Only these tacrolimus C0-derived metrics were significantly associated with an increased risk of NODM [HR: 1.73 (1.43-2.10, P < 0.001)].Conclusion:This study shows that tacrolimus concentrations >15 mcg/L affect the incidence of NODM.
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