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  • Title: Long-term safety, tolerability and efficacy of daclizumab (Zenapax) in a two-dose regimen in liver transplant recipients.
    Author: Niemeyer G, Koch M, Light S, Kuse ER, Nashan B.
    Journal: Am J Transplant; 2002 May; 2(5):454-60. PubMed ID: 12123212.
    Abstract:
    A major thrust of transplantation research is to find more effective and less broadly toxic immunosuppressive agents. One potential way is the use of monoclonal antibodies directed to IL-2R alpha. Immunoprophylaxis with daclizumab, a humanized anti-IL-2R alpha monoclonal antibody, has been shown to be effective in the prevention of acute rejection in kidney transplant patients. These results encouraged us to initiate a pilot study in 28 liver transplant patients in 1997. Daclizumab was administered intravenously approximately 6 h after reperfusion (1 mg/kg) and on day 4 post-transplant (0.5 mg/kg). Additional immunosuppression consisted of cyclosporine A as well as of corticosteroids. Administration of daclizumab was not associated with any side-effects. We only experienced one acute rejection in a patient on day 17 post-transplant. It resolved immediately under therapy with prednisolone. The rate of opportunistic infections did not differ from results with conventional immunosuppressive regimens. At 4 years post-transplant no lymphoproliferative disease was observed. Patient survival at 12, 24, 36 and 48 months post-transplant was 88.5, 84.6, 80.8 and 73.1%, respectively. Immunoprophylaxis with a two-dose daclizumab regimen is safe, effective and well tolerated, and does not lead to increased opportunistic infections.
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