Patients with terminal chronic kidney disease (CRD) need renal function supplementation, namely dialysis or renal transplantation. Transplantation is the most efficient and cost-effective treatment. Early and equitable access to transplantation is a public health issue. Access to transplantation is facilitated by early and systematic information and assessment of patients for inclusion in the national waiting list for transplantation prior to the onset of dialysis, and by the development of transplantation from living donors. In France, there are wide disparities in access to national waiting list registration and transplantation. One of the causes of these inequalities in access would be the disparity in referral practices to a transplant medical and surgical team authorized to register the individual on the national waiting list.

The aim of the TRACE study is to evaluate the impact of a new regional organization promoting renal transplantation on access to renal transplantation.

Inclusion Criteria:

• Patient older than 18 years and younger than 85 years.
• Entered in the French Network Epidemiology and Information in Nephrology register
• Renal function supplementation begun in 2013 -- 2014 (period before regional organization implementation) or in 2018 -- 2019 (period after regional organization implementation).

Exclusion Criteria:

- Patient followed in a Center of nephrology-dialysis or of Renal transplantation located outside French Auvergne Rhône Alpes or Center Regions.

The population participating in the study is composed of patients with a terminal Chronic Kidney Disease (CRD) requiring renal function supplementation.