ECP-DL Cell Infusion for Induction in Living Donor Kidney (LDK) Transplants

Brief Summary

This is a phase 1 trial, 36 month duration for subjects with end-stage renal disease (ESRD). The objectives of the trail are1) Determine the safety of ECP-DL cell infusion in living donor renal transplant recipients. 2) Determine rates of graft rejection and compare to historical controls. One week prior to planned LDK transplant the donor and recipient pair will be seen for ECP-DL preparation and infusion. Donors will undergo one single unstimulated peripheral blood mononuclear cell collection using the THERAKOS® CELLEX® Photopheresis System; the cell product will then undergo ECP treatment to make ECP-DL, which will then be infused into the recipient. One week later, recipients (n=12) will undergo LDK transplant using standard of care maintenance immunosuppression without antibody induction therapy. Subsequent patients will receive cell infusions in escalating cell doses. A minimum of two months will be used as an interval between ECP-DL treatment in each tier. A staggered approach for moving to the next tier will be employed waiting no less than two months to ensure absence of adverse events using the following tier dosing schema: Tier 1: 0.5 x 10\^9 ECP-DL treated cells (n=4) Tier 2: 1 x 10\^9 ECP-DL treated cells (n=4) Tier 3: 2 x 10\^9 ECP-DL treated cells (n=4) Following transplant, LDK recipients will undergo ECP using the Therakos system on two consecutive days per month for 6 months (12 treatments). Peripheral IV access will be used whenever possible.

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