The Zeaxanthin and Visual Function Study (NCT00564902) | Clinical Trial Compass
CompletedNot Applicable
The Zeaxanthin and Visual Function Study
United States60 participantsStarted 2007-11
Plain-language summary
To evaluate if supplementation of zeaxanthin (with or without Lutein) is beneficial to patients with early and moderate Atrophic Age Related Macular Degeneration.
Who can participate
Age range
45 Years – 90 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* diagnosis of atrophic AMD (ICD9 362.51) by stereo bio-ophthalmoscopy and at least one vision degrading visual-psychophysical abnormality associated with AMD in one or both eyes.
* clear non-lenticular ocular media (cornea, aqueous and vitreous)
* free of advanced glaucoma and diabetes or any other ocular or systemic disease that could affect central or parafoveal macula visual function
Exclusion Criteria:
* high risk retinal characteristics for advanced AMD or advanced AMD for which existing medical / surgical options are available
* presence of ophthalmologically significant active exudative, AMD pathology by fluorescein angiography but also a single large drusen, \>15, multiple intermediate drusen, parafoveal geographic atrophy or loss of vision in one eye due to advanced AMD
* recent (within 6 months) cataract or retinal surgery
* taking photosensitizing drugs such as phenothiazines and chloroquine
* having taken lutein or zeaxanthin supplements within the past six months.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.