This is a retrospective, prospective, single-centre, non-pharmacological observational study.

The primary objective is to investigate the long-term prognosis of the kidney transplant function of different types of donors.

It provides for the systematic collection of clinical information of patients undergoing kidney transplantation from 01/01/2017 until the Ethics Committee approves the study and the Director General of the IRCCS issues the authorisation. Data collection will continue for 9 years after the start of the study.

Patients participating in the prospective part will be treated according to clinical practice, in accordance with the judgement of the physician and the information reported in the Technical Data Sheet of each individual product of any concomitant therapies administered according to clinical practice. There are no additional study-specific visits/examinations for enrolled patients and any data recorded for the purposes of the study is collected for care purposes during the patient's normal course of treatment.

Inclusion Criteria:

• Age ≥ 18 years.
• Kidney transplant recipient from any donor.
• Acquisition of Informed Consent to study participation and data processing.

Exclusion Criteria:

-

The medical records of all patients undergoing kidney transplantation performed at the O.U. Nephrology, Dialysis and Transplantation of IRCCS AOUBO from January 2017 until the start of the study will be retrospectively reviewed. After that, all kidney transplant recipients over the next 9 years, performed c/o the U.O. Nephrology, Dialysis and Transplantation of IRCCS AOUBO, will be prospectively enrolled.