Eye-brain-kidney connections in chronic kidney disease
Official title: A Study on the Eye-Brain-Kidney Interaction Mechanisms in Chronic Kidney Disease Based on Multimodal Magnetic Resonance Imaging
Run by Beijing Friendship Hospital · NCT07358572 · Data updated 2026-11-12
This study will see if changes in brain network connectivity and retinal blood vessels are linked to cognitive decline and kidney function in adults with chronic kidney disease.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 1500 (estimated) |
| Sponsor | Beijing Friendship Hospital Academic / other |
| Locations | 1 site (Beijing, Beijing Municipality) |
| Status | Recruiting |
| Started | December 1, 2025 |
| Main results expected | December 31, 2031 |
| Study ends | December 31, 2031 |
| Registry record updated | January 27, 2026 |
| Trial ID | NCT07358572 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18–70 years old with clinically diagnosed CKD stages 1–5 who can undergo MRI and eye imaging and are willing to complete cognitive testing are ideal candidates.
✕Probably not a fit
Patients with MRI contraindications, prior stroke or other central nervous system diseases, severe unstable cardiac conditions, or who are pregnant or lactating are unlikely to benefit or be eligible.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This prospective, single-center observational cohort will enroll adults aged 18–70 with CKD stages 1–5 at Beijing Friendship Hospital. Participants will complete neuropsychological testing (including the Montreal Cognitive Assessment), blood tests for biomarkers, and multimodal imaging—3.0T brain MRI, multiparametric kidney MRI, and retinal OCT/OCTA—at baseline and at a 3-year follow-up. The study will analyze relationships among retinal microvasculature, brain connectivity and perfusion measures, cognitive performance, and kidney function over time. Findings aim to establish an integrated eye–brain–kidney framework using noninvasive imaging and clinical data.
Why it matters
Potential benefit: If successful, the project could identify noninvasive imaging markers that help detect or monitor cognitive decline and kidney disease progression earlier.
How similar studies have gone: Previous cross-sectional studies have reported links between retinal microvascular changes, brain imaging markers, and cognitive impairment, but longitudinal multimodal eye–brain–kidney cohorts are relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Aged 18-70 years. 2. Patients clinically diagnosed with CKD stages 1-5. 3. No contraindications for MRI examination (e.g., cardiac pacemaker, claustrophobia, cochlear implant, hearing aid, coronary stents implanted before 2015) and able to complete the MRI scan. Exclusion Criteria: 1. Patients with recent or prior cerebral hemorrhage or cerebral infarction. 2. History of epileptic seizures or psychiatric disorders. 3. Patients with claustrophobia. 4. Pregnant or lactating patients. 5. Presence of other central nervous system diseases (e.g., tumor, trauma). 6. Unstable angina, congestive heart failure (NYHA class III or IV), or acute myocardial infarction. 7. Any systemic or other diseases deemed unsuitable for clinical trial participation.
Where it's running
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Beijing Friendship Hospital, Capital Medical University
Beijing, Beijing Municipality, China Recruiting
Study contacts
- Study coordinator: Hao Wang
- Email: wanghao4756@163.com
- Phone: +86 18810643768
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.