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Assessing renal function with daclizumab induction and delayed tacrolimus introduction in liver transplant recipients

Yvon Calmus1, Nassim Kamar, Jean Gugenheim

  • 1Unité de Transplantation Hépatique, Hôpital Saint-Antoine, Paris, France. yvon.calmus@sat.aphp.fr

Transplantation
|May 25, 2010
PubMed
Abstract

Insights

Delaying tacrolimus (Tac) after liver transplant did not improve renal function in patients with good baseline kidney health. This study found no significant benefit in renal outcomes for patients receiving delayed Tac compared to standard Tac administration.

Area of Science:

  • Nephrology
  • Transplant Surgery
  • Immunology

Background:

  • Calcineurin inhibitor-induced renal dysfunction is a significant complication in liver transplant recipients.
  • Interleukin-2 receptor antagonist induction followed by delayed tacrolimus (Tac) administration is a potential strategy to mitigate renal damage.
  • This approach aims to preserve kidney function without compromising essential immunoprotection.

Purpose of the Study:

  • To evaluate the efficacy of daclizumab induction with delayed Tac administration on renal function in liver transplant patients.
  • To compare renal function outcomes at 6 months and assess long-term effects up to 24 months.
  • To determine if delaying Tac administration benefits kidney health post-liver transplantation.

Main Methods:

  • An open-label, randomized, multicenter trial involving liver transplant patients with baseline serum creatinine (SrC) < 180 micromol/L.
  • Patients received either delayed Tac with daclizumab induction (n=98) or standard Tac (n=101), both with mycophenolate mofetil and steroids.
  • The primary endpoint was the incidence of SrC > 130 micrommol/L at 6 months, with extended observation for 24 months.

Main Results:

  • The incidence of elevated SrC (>130 micrommol/L) at 6 months was similar between delayed Tac (22.4%) and standard Tac (29.7%) groups (P=ns).
  • Renal function and estimated glomerular filtration rate showed no significant differences at 6, 12, or 24 months between the groups.
  • Biopsy-proven acute rejection, patient survival, graft survival, and adverse events were comparable across both treatment arms.

Conclusions:

  • Delaying tacrolimus administration does not offer significant renal function benefits in liver transplant recipients with preserved baseline renal function.
  • The strategy of using daclizumab induction with delayed Tac did not prove superior to standard Tac in protecting kidney health.
  • Both treatment regimens demonstrated comparable safety and efficacy profiles regarding rejection and survival rates.

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