Optical Coherence Tomography And NEphropathy: The OCTANE Study

Recruiting now

Conditions studied: Health, Hypertension, Chronic Kidney Disease

In brief

Patients with high blood pressure (hypertension) and chronic kidney disease are at an increased risk of developing heart disease and strokes. Part of this risk is due to changes in the structure and function of the blood vessels throughout the body. It is thought that reducing high blood pressure and treating chronic kidney disease improves the structure and function of blood vessels but information on this is limited. Optical coherence tomography (OCT) is a method of looking at the blood vessels at the back of the eye. It is a simple, quick and non-invasive test that you may have previously had during a visit to the optician. The purpose of the study is to ascertain whether OCT is able to detect changes in the eye's blood vessels in patients with hypertension and chronic kidney disease compared to healthy individuals and also to see if any differences seen improve with treatment.

Key facts

Study ID

NCT02132741

Run by

University of Edinburgh

People needed

150

Starts

2014-05-16

Expected to finish

2028-09-01

Last updated by the study team

2026-05-13

Who can join

Age: 18 and older, up to 80. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Male or female
• Age 18-80
• Body mass index ≤35
• For those with hypertension: BP ≥140/90 or on treatment for hypertension
• For those with CKD: CKD as defined by the Kidney Diseases Quality Initiative guidelines

You may not qualify if…

• Subject is below the age of legal consent, or is mentally or legally incapacitated
• The subject has donated blood (450 ml) within the last 4 weeks
• Past or present drug or alcohol abuse including intravenous drug abuse at any time
• Participation in another clinical trial within 1 month
• Considered to be at high risk of HIV or hepatitis B
• Patients with known eye disease, or previous eye surgery, or refractive error greater than +/- 6 dioptres.

Where it is running

• University of Edinburgh — Edinburgh, Midlothian, United Kingdom (enrolling)

Full record on ClinicalTrials.gov

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