Cohort Studies (iNET-CKD)

Share your research expertise with the global nephrology community.

The ISN International Network of Chronic Kidney Disease cohort studies (iNET-CKD) is an international network of existing, independently funded Chronic Kidney Disease (CKD) cohort studies. Such collaboration between observational cohort studies in CKD investigators facilitates the understanding of CKD progression and its consequences.

  • Promote and enhance research opportunities using patient-level data and bio-samples to understand CKD progression and outcomes;
  • Improve research capacity around the world through education, especially to carry out observational cohort studies; and
  • Help investigators establish CKD cohort studies.

iNET-CKD Membership Eligibility criteria

Full membership

Inclusion Criteria

  1. Observational studies of CKD
      • based on a priori hypotheses and study objectives
      • study individuals with CKD
      • collect longitudinal data prospectively
      • examine a broad spectrum of CKD-related health outcomes
      • collect and analyze bio-samples
  1. sample size >1000 in adult studies and >300 in pediatric studies
  2. duration of follow up >3 years

Exclusion Criteria

  • Kidney failure cohorts
  • General population cohorts
  • Randomized controlled trials
  • Clinical databases

Affiliate Membership

iNET-CKD focuses on prospective observational studies of pre-dialysis CKD patients. Affiliate member studies, such as regional registries of CKD patients, or well-designed cohort studies that do not meet all the inclusion criteria, may also be considered for inclusion in some cases.

The iNET-CKD Core Group makes the final decision regarding the inclusion of affiliate member studies.

Affiliate Member Cohort Studies are not eligible to serve on the Core Group.

Interested in joining the iNET-CKD network? Apply here.

For all inquiries on iNET-CKD, contact the ISN Research Team at

Meet the iNET-CKD Committee Chairs and Members here.


iNET-CKD Authorship Policy

The purpose of the authorship policy is to encourage and facilitate the presentation of iNET-CKD analyses while providing guidelines to ensure equitable access to authorship and adherence to established principles of authorship.

This policy applies to iNET-CKD authors, defined as individuals affiliated with cohorts who are members of the iNET-CKD.

iNET-CKD Publication

A collaborative, individual-level analysis compared longitudinal outcomes across the International Network of Chronic Kidney Disease (iNET-CKD) cohorts.

iNET-CKD Publication

Considerable international variation exists in blood pressure control and antihypertensive prescription patterns in chronic kidney disease.

iNET-CKD Members