Tacrolimus interaction with oral oestrogen in kidney transplant recipients: A case-control study

Journal of Clinical Pharmacy and Therapeutics
M GhadimiA Alamdari

Abstract

Oestrogens could inhibit the metabolism of drugs, such as calcineurin inhibitors, that are substrates for cytochrome P-450 microsomal enzymes. This study assessed the potential tacrolimus interaction with oral conjugated oestrogen in kidney transplant recipients who received conjugated oestrogen as prophylaxis against bleeding, before kidney biopsy. In this case-control study, 13 kidney transplant recipients who received oral conjugated oestrogen as prophylaxis against uraemic bleeding before allograft biopsy were considered as cases. Thirteen matched kidney transplant recipients with similar immunosuppressive regimen served as controls. In this study, comparisons were made between the groups regarding daily dose, blood trough concentrations and calculated concentration corrected for dose of tacrolimus at three time points of the study. All patients in the case group received conjugated oestrogen at a dose of 3.75 mg/day for 4.78 ± 0.83 days. Without any change in tacrolimus dose, the blood concentration of tacrolimus increased during concomitant administration of conjugated oestrogen (from 8.10 ± 2.85 to 12.35 ± 4.62 ng/mL; P = .11) and decreased after cessation of conjugated oestrogen (6.07 ± 2.18 ng/mL; P = .015). The calcul...Continue Reading

References

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Aug 21, 2013·Seminars in Hematology·Nelson Leung
Sep 24, 2014·Nature Reviews. Nephrology·Teun van GelderDennis A Hesselink

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Citations

Sep 16, 2020·Muscle & Nerve·Kavita M Grover, Naganand Sripathi
Jun 27, 2019·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Indranee N RajapreyarJose Tallaj

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