All cohort participants are assessed annually for at least 5 years, until 6 months after the start of renal replacement therapy.
Each year, data are collected from both medical records and patients interview and self-administrated questionnaires are asked to report clinical events.
Interviews and routine biological measurements are repeated annually.
CKD-REIN is funded by the Agence Nationale de la Recherche through the 2010 'Cohortes-Investissements d'Avenir' programme and by the 2010 national Programme Hospitalier de Recherche Clinique.
CKD-REIN is also supported through a public-private partnership with Amgen, Fresenius Medical Care, and GlaxoSmithKline since 2012; Baxter and MerckSharp\&Dohme-Chibret (France) from 2012 to 2017; LillyFrance since 2013; Otsuka Pharmaceutical since 2015; Vifor Fresenius since 2017; AstraZeneca since 2018; and Sanofi-Genzyme from 2012 to 2015.
