42 necrokidney transplants, performed in Renal Unit of "Niguarda - Ca' Granda" Hospital in Milan, since 1972, have been examined. Hystocompatibility score and previous transfusions and/or pregnancies apparently did not correlate with three months transplants survival. Our patients have been separated into two groups according to treatment with or without ALG: the group treated with ALG showed a better percentage survival of the kidney at three months a lower incidence of rejection episodes during the same period. The usefulness of ALG treatment is reaffirmed; we consider that a better prognosis at three months probably means a more favorable clinical course.