"Co-interferências da farmacocinética dos inibidores de calcineurina em associação com micofenolato mofetil em pacientes transplantados renais" / Interferences of calcineurin inhibitors on the pharmacokinetics of mycophenolic acid in renal transplantation

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

To evaluate the exposure to mycophenolic acid (MPA) early after renal transplantation, recipients were allocated to tacrolimus (n = 33) or Neoral (n =19, control) plus MMF. Pharmacokinetic curves (AUC) of calcineurin inhibitor and MPA were drawn on days 7, 14, 30, 60 and 180 post-transplant. From days 14-180, MPA-AUC was higher in tacrolimus group due to a higher second MPA peak. With fixed MMF doses, a great amount of curves fell below the proposed therapeutic range. On day 7, the equation that uses pre-dose (C0) and second-hour (C2) concentrations was the most accurate. After day 7, the equation that uses C2 alone was the most accurate. Exposure to MPA during the first six months after transplantation is higher under tacrolimus than Neoral. Nevertheless, despite the calcineurin inhibitor associated with MMF, an equation that uses C0 and C2 up to day 7 and C2 thereafter allows precise MPA monitoring

ASSUNTO(S)

farmacocinética monitoramento de medicamentos transplante de rim Ácido micofenólico drug monitoring kidney transplantation Áreas sob a curva cyclosporine tacrolimus area under curve ciclosporina mycophenolic acid tacrolimo pharmacokinetics

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