No, officially it is adversarial, as the defense has the right to discovery, to present testimony, and to have an impartial judge to oversee the trial, who is not to function as the investigative director (that role having been fully transferred to the prosecution) - all the essentials of the Adversarial System. The sole official exception to this is with the so called 'fast track' trial, which functions in the old manner (essentially giving a defendant no chance at actually defending themselves). Yes, in practice many aging Judges have corruptly stuck with the old ways, but that is not how the system is supposed to function.
Italy has a long way to go yet, but it has made amazingly large steps towards giving up an evil, long outdated system of legal thought that a number of other European nations still cling to.