Summary We report the 48‐month results of a trial testing whether withdrawal of cyclosporine (CsA) from a sirolimus (SRL)‐CsA‐steroid (ST) regimen would impact renal allograft survival. Eligible patients receiving SRL‐CsA‐ST from transplantation were randomly assigned at 3 months to remain on triple therapy (SRL‐CsA‐ST, n = 215) or to have CsA withdrawn and SRL trough concentrations increased (SRL‐ST, n = 215). SRL‐ST therapy resulted in significantly better graft survival, either when including death with a functioning graft as an event (84.2% vs. 91.5%, P = 0.024) or when censoring it (90.6% vs. 96.1%, P = 0.026). Calculated glomerular filtration rate (43.8 vs. 58.3 ml/min, P < 0.001) and mean arterial blood pressure (101.3 vs. 97.1 mmHg, P = 0.047) were also improved with SRL‐ST. Differences in the incidences of biopsy‐proven acute rejection after randomization (6.5% vs. 10.2%, SRL‐CsA‐ST versus SRL‐ST, respectively) and mortality (7.9% vs. 4.7%) were not significant. SRL‐CsA‐ST‐treated patients had significantly higher incidences of adverse events generally associated with CsA, whereas those in the SRL‐ST group experienced greater frequencies of events commonly related to higher trough levels of SRL. In conclusion, early withdrawal of CsA from a SRL‐CsA‐ST regimen rapidly improves renal function and ultimately results in better graft survival.

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Data at 2 years confirm that early CsA withdrawal followed by an SRL-ST maintenance regimen results in long-term improvement in both renal function and blood pressure, without increased risk of graft loss or late acute rejection.

Prolactinomas, drug induced hyperprolactinemia, and macroprolactinemia were the 3 most common causes of hyperprolactinemia. Although PRL levels could not reliably define the etiology of hyperprolactinemia, PRL values >500 ng/ml were exclusively seen in patients with prolactinomas. CAB was significantly more effective than BCR in terms of prolactin normalization, tumor shrinkage, and tolerability.

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