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Could fixing cholesterol help save sight in diabetes?

NCT ID NCT03403686

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study looks at how a cholesterol-regulating protein called LXR might protect the eyes in people with diabetic retinopathy. Researchers will take blood samples from 104 adults with or without diabetes to test how certain blood cells function. The goal is to understand the biology better, not to test a new drug.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this research could point toward new treatments for diabetic retinopathy by targeting cholesterol regulation.
What could go wrong
This is an early-stage observational study, not testing a treatment directly. Results may not lead to a therapy, and findings from lab tests may not translate to patient benefits.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 104 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2018

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients who have retinal abnormalities other than diabetic retinopathy will be excluded. Patients who have systemic conditions that influence hematopoietic stem cell function such as cardiovascular disease, malignant disease, diabetes, hematologic disorder, or estimated glomerular filtration rate less than 60 mL/min or who have undergone treatment with erythropoietin will be excluded. We will record all medications including antihypertensive drug treatment, treatment with statins, Angiotensin-Converting Enzyme (ACE) Inhibitors, Angiotensin Receptor Blockers (ARB) or other pharmacological agents that may influence CD34+ cell function. Baseline characteristics will be recorded, including age, lipid parameters, body mass index (BMI), blood pressure, smoking history, antioxidant intake and use of nutritional supplements.

Ages

21 to 98 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Any man or woman between the ages of 21- 98 years of age will be eligible to participate. To participate in the study as a study subject we will require: a) the subject must either carry the diagnosis of diabetes or be a healthy aged control and b) the patient be willing and have the ability to cooperate with the protocol. Exclusion Criteria: * Exclusion criteria: We will apply the following exclusion criteria: a) evidence of ongoing acute or chronic infection (HIV, Hepatitis B or C, tuberculosis); b) ongoing malignancy; c) cerebral vascular accident or cerebral vascular procedure; d) current pregnancy; e) history of organ transplantation; f) presence of a graft (to avoid any effect of the graft on inflammatory parameters; g) uremic symptoms, an estimated glomerular filtration rate of less than 20 cc/min (by Modification of Diet in Renal Disease equation), or an albumin of less than 3.6 (to avoid malnutrition as a confounding variable); h) be unwilling to abstain from drinking alcohol and i) patients with anemia. Subjects with AMD, glaucoma, uveitis, known hereditary degenerations or other significant ocular complications other than diabetic retinopathy will be excluded.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Alabama at Birmingham

    RECRUITING

    Birmingham, Alabama, 35294, United States

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