Evaluation of Donor Specific Immune Senescence and Exhaustion as Biomarkers of Tolerance Post Liver Transplantation

"Participants will initiate calcineurin inhibitor (CNI) withdrawal after at least 3 weeks of stable liver function, as documented by liver function tests (direct bilirubin, alanine aminotransferase and gamma-glutamyl transferase) separated by at least 1 week in the 3 week period prior to withdrawal.~CNI withdrawal will occur in eight 3 week intervals with each subsequent reduction based on liver function tests over the prior 3 week interval.~Participants on CNI and prednisone will undergo withdrawal from the two therapies concurrently.~If participants are weaned off the CNI successfully, they will initiate non-CNI withdrawal. The non-CNI withdrawal includes two dose reductions of approximately 50% over a 6 week period each, after which the drug will be discontinued."