Gene test before kidney transplant could prevent rejection and save money

This study tests whether doing a genetic test before a kidney transplant can help doctors choose the best starting dose of tacrolimus, an anti-rejection drug. About 114 adults waiting for a kidney transplant will be randomly assigned to either standard care or the genetic-testing approach. The goal is to see if more patients reach the ideal drug level in their blood by day 4 after transplant, and whether this strategy is cost-effective for the Spanish health system.