Clinical Research Directory

Inclusion Criteria: * Patients with CKD stage 4B or 5 (first consultation with GFR \< 20 mL/min /1.73 m2 in CKD-EPI 2009). * Fluency in French * Membership of a French social security scheme * Non-opposition from the subject to participate in the study Exclusion Criteria: * Subjects with limited legal capacity. * Subjects still in the exclusion period of another study, or according to the national registry of clinical trial participants. * Subjects with no social security coverage. * Subjects judged by the investigator to be unlikely to comply with study procedures * Subjects unable to understand the reasons for the study; psychiatric disorders judged by the investigator to be incompatible with inclusion in the study.