EuroCYST initiative aims to build a large, well-characterized cohort of Autosomal Dominant polyCYSTic Kidney Disease (ADPKD) subjects who are followed in a longitudinal observational cohort study has the potential to identify progression factors and biomarkers, and to assess disease stage specific mortality, morbidity and health care costs.

The EuroCYST Initiative aims to build a network of ADPKD reference centers across Europe and to establish a large-scale observational cohort of ADPKD patients for the purpose of studying the pathogenesis, rate of disease progression, progression rate modifiers, disease stage specific morbidity, mortality, health economic issues and the predictive value of biomarkers in ADPKD. Overall 1,100 patients will be enrolled in 14 study sites across Europe and will be followed up for at least three years. The ADPKD reference center network across Europe and the observational cohort study will enable European ADPKD researchers to gain insight into the natural history, heterogeneity and associated complications of the disease as well as how it affects the lives of patients across Europe.

Inclusion Criteria:

• Participants ≥ 18 years;
• Clinical diagnosis of ADPKD based on kidney imaging and family history;
• Estimated Glomerular Filtration Rate (eGFR) ≥ 30 ml/min/1.73m2 (Chronic Kidney Disease Epidemiology Collaboration(CKD-EPI)- formula);
• Provided written informed consent.

Exclusion Criteria:

• Receiving chronic renal replacement therapy before enrollment (dialysis, allograft) or anticipated in the following 12 months after enrollment;
• Participation in a clinical trial aiming to modify disease outcome one year or less before enrollment in the EuroCYST study;
• New York Heart Association (NYHA) stadium IV.

The study will include 1,100 participants aged 18 and above with a diagnosis of ADPKD, diagnosed via imaging and family history. The assessment of participants is based on defined inclusion and exclusion criteria.