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  • Title: Immunosuppressive minimization with mTOR inhibitors and belatacept.
    Author: Diekmann F.
    Journal: Transpl Int; 2015 Aug; 28(8):921-7. PubMed ID: 25959589.
    Abstract:
    Immunosuppressive therapy after kidney transplantation consists of a calcineurin inhibitor (CNI)-based therapy in combination with mycophenolic acid and steroids in most cases. In spite of low acute rejection rates and excellent graft survival, it is associated with major long-term complications, such as cardiovascular events, malignancy, and nephrotoxicity, and does not favor tolerogenic processes. Mammalian target of rapamycin (mTOR) inhibitors in combination with low-dose CNI offer good rejection rates and acceptable allograft function; however, de novo mTOR inhitibor-based treatment in combination with mycophenolate is not widely used due to higher acute rejection rates. Early conversion from a CNI to an mTOR inhibitor is a feasible option in selected patients with a slightly higher acute rejection rate, but equal or better GFR. Costimulation blockade has been proven to facilitate antirejection prophylaxis without CNI-associated side effects. So far, belatacept has been approved in combination with mycophenolate and steroids with better graft function, however, a slightly higher acute rejection rate. Recently, the combination of an mTOR inhibitor and belatacept with lymphocyte-depleting antibody induction and without maintenance steroids has been explored in two pilot studies with very low acute rejection rates, very good graft function, and an acceptable side effect profile.
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