Background: Age-related macular degeneration (AMD) is the main reason older people lose their vision. It affects the macula, the center of the retina needed for sharp, clear vision. Researchers want to see if an antibiotic can help people with an advanced form of AMD, Geographic Atrophy (GA). Objective: To see if minocycline is safe for people with GA and if it helps preserve their vision. Eligibility: People age 55 and older who have GA in at least one eye. Design: Participants will be screened with physical exam, medical history, blood tests, and eye exam. Participants will take minocycline. They will take 1 pill twice a day for at least 3 years. Participants will have a minimum of 11 study visits. (But they are not every 3 months.). At each visit, participants will have a medical history. They may have: Blood tests. Eye exam. Vision, eye pressure, and eye movements will be checked. The pupils may be dilated. The inside of the eyes may be photographed. Their thyroid gland felt while they swallow. Microperimetry. They will sit in front of a computer and press a button when they see a light on the screen. Fluorescein angiography. An intravenous line (IV) will be placed in an arm vein. A dye called fluorescein will be placed in the IV and travel through the veins to the blood vessels in the eyes. A camera will take pictures of the dye as it flows through the eye blood vessels.
Age range
55 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.
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.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
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.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Difference in Square-Root Transformed GA Area Expansion Rates in the Study Eye Between the Treatment Phase and Run-in Phase Based on Fundus Autofluorescence (FAF)
Timeframe: Run-in phase (baseline to Month 9) before initiation of IP and 24 months treatment phase after initiation of IP (Month 9 to Month 33)