Steroid maintenance in repeat kidney transplantation: influence of induction agents on outcomes

Saudi J Kidney Dis Transpl. 2014 Jul;25(4):741-9. doi: 10.4103/1319-2442.134954.

Abstract

The influence of steroid maintenance on the outcomes of repeat kidney transplant (RKT) recipients with respect to induction type is unclear. Using the Organ Procurement and Transplant Network/United Network of Organ Sharing (OPTN/UNOS) database, we identified patients (≥ 18 years) who underwent deceased donor RKT from January 2000 to December 2008 after receiving induction with rabbit-antithymocyte globulin (r-ATG), alemtuzumab or an IL-2 receptor blocker (IL-2B) and were discharged on a calcineurin inhibitor/mycophenolate mofetil regimen with or without steroids. Of 5634 patients, 3643 received r-ATG (steroid = 3157, no-steroid = 486), 448 alemtuzumab (steroid = 196, no-steroid = 252) and 1543 an IL-2B (steroid = 1465, no-steroid = 78). Unadjusted graft survivals were similar for the no-steroid versus steroid groups for induction with r-ATG [hazard ratio (HR) 0.85 and 95% confidence interval (95% CI) 0.70-1.03, P = 0.10], alemtuzumab (HR 0.76, 95% CI 0.51-1.14, P = 0.18) and IL-2B (HR 0.77, 95% CI 0.56-1.70, P = 0.23). In the adjusted model, steroid use improved graft survival in alemtuzumab (HR 0.44, 95% CI 0.25-0.76, P = 0.003) but not in the r-ATG (HR 0.86, 95% CI 0.68-1.09, P = 0.21) or IL-2B (HR 0.98, 95% CI 0.56-1.70, P = 0.94) groups. Steroid use was associated with inferior patient survival in unadjusted (HR 1.30, 95% CI 1.17-1.44, P <0.001) and adjusted (HR 1.29, 95% CI 1.14-1.45, P <0.001) models for r-ATG induction, whereas this was not observed with alemtuzumab (unadjusted HR 1.11, 95% CI 0.89-1.37, P = 0.36; adjusted HR 0.90, 95% CI 0.68-1.20, P = 0.49) or IL-2B (unadjusted HR 1.01, 95% CI 0.87-1.18, P = 0.87; adjusted HR 1.15, 95% CI 0.97-1.38, P = 0.12) inductions. Our study showed a graft survival benefit in the alemtuzumab- and patient death risk in the r-ATG-induced RKT recipients discharged on steroids.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Alemtuzumab
  • Antibodies, Monoclonal / administration & dosage
  • Antibodies, Monoclonal, Humanized / administration & dosage
  • Antilymphocyte Serum / administration & dosage
  • Basiliximab
  • Daclizumab
  • Drug Administration Schedule
  • Drug Therapy, Combination
  • Female
  • Graft Rejection / immunology
  • Graft Rejection / mortality
  • Graft Rejection / prevention & control*
  • Graft Survival / drug effects*
  • Humans
  • Immunoglobulin G / administration & dosage
  • Immunosuppressive Agents / administration & dosage*
  • Immunosuppressive Agents / adverse effects
  • Kidney Transplantation / adverse effects*
  • Kidney Transplantation / mortality
  • Male
  • Middle Aged
  • Recombinant Fusion Proteins / administration & dosage
  • Reoperation
  • Risk Factors
  • Steroids / administration & dosage*
  • Steroids / adverse effects
  • Survival Analysis
  • Time Factors
  • Tissue and Organ Procurement
  • Treatment Outcome
  • United States
  • Young Adult

Substances

  • Antibodies, Monoclonal
  • Antibodies, Monoclonal, Humanized
  • Antilymphocyte Serum
  • Immunoglobulin G
  • Immunosuppressive Agents
  • Recombinant Fusion Proteins
  • Steroids
  • Alemtuzumab
  • Basiliximab
  • Daclizumab