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The optimum approach towards immunosuppression withdrawal following kidney transplant failure is unclear. Prolonged weaning may be associated with reduced sensitization, less graft nephrectomy and greater likelihood of retransplantation, but conversely increased risk of infection, malignancy and death. We conducted a single-centre retrospective analysis of patients experiencing graft failure between 2007 and 2017, comparing rates of sensitization, retransplantation, nephrectomy, infection, malignancy and death between patients who had immunosuppression weaned over <90 vs. 90-180 vs. >180 days. Patient survival after immunosuppression withdrawal over <90 vs. 90-180 vs. >180 days was 73.3%, 72.1% and 80.4%, respectively (P = 0.35), with no differences in cPRA (80.06 vs. 81.21 vs. 85.42, P = 0.66) or retransplantation rate [24/31 (77.4%) vs. 21/35 (60.0%) vs. 22/36 (61.1%), P = 0.13]. There was significantly less nephrectomy after late immunosuppression cessation [10/42 (23.8%) vs. 7/42 (16.7%) vs. 3/43 (7.0%), P = 0.01] but no differences in infections or malignancy. On competing risk regression (death as competing risk) controlling for cofactors including age, nephrectomy and rejection, prolonged immunosuppression did not predict likelihood of retransplantation (SHR 1.000, P = 0.88). Prolonged immunosuppression withdrawal does not reduce sensitization or improve retransplantation rates but is associated with less nephrectomy. Immunosuppression withdrawal should be tailored to individual circumstances after graft failure.
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