Could a diabetes pill protect eyesight in advanced dry AMD?
NCT ID NCT07174687
First seen Jun 27, 2026 · Last updated Aug 27, 2026 · Updated 2 times
Summary
This study tests whether dapagliflozin, a drug used for diabetes, can slow the progression of geographic atrophy—an advanced form of dry age-related macular degeneration that causes blind spots. About 70 adults aged 50 and older with this condition will take the drug for 12 months. Researchers will measure changes in retinal damage and vision to see if the treatment is safe and effective.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Jun 2028
An estimate. End dates often move.
- Lead sponsor
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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.
- Ages
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50 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria 1. Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the ICF and in this protocol 2. Are reliable and willing to make themselves available for the duration of the study and are willing to follow study procedures 3. Participant is male or, if female, participant is surgically sterilized or amenorrheic for at least one year 4. ≥50 years old 5. Evidence of dry advanced AMD, including non-foveal GA or small foveal-involving GA, provided visual acuity criteria are met 1. The geographic atrophy may involve the fovea, provided the best-corrected visual acuity remains within protocol limits 2. Total area of geographic atrophy must be between 2.5 mm2 and 17.5 mm2 (1 - 4 disc areas, respectively). 3. If the geographic atrophy consists of multiple lesions, at least one lesion must have an area of ≥1.25 mm² (equivalent to 0.5 disc areas). 6. BCVA between 20/25 and 20/320 7. Must be treatment-naïve for AMD in study eye, except for oral supplements Exclusion Criteria 1. Prior investigational drug use within 60 days 2. Use of other SGLT2 inhibitors 3. History of symptomatic hypotension or symptomatic hypotension (symptoms of hypotension + SBP \< 90mmHg) at baseline 4. Type I and Type II Diabetes Mellitus 5. End stage renal disease or estimated glomerular filtration rate less than 25 mL/min/1.73 m2 per MDRD calculation 6. History of heart failure 7. History of a serious hypersensitivity reaction to dapagliflozin or any of the excipients in FARXIGA 8. Other concomitant disease or condition that investigator deems unsuitable for the study, including drug or alcohol abuse or psychiatric, behavioral, or cognitive disorders, sufficient to interfere with the patient's ability to understand and comply with the study instructions or follow-up procedures 1. Any prior intravitreal treatment for any indication in the study eye. 2. Prior intravitreal treatment (steroids, anti-VEGF) in the fellow eye is permitted if all injections occurred more than 6 months prior to screening, provided the participant has no active intravitreal treatment in either eye at screening or during the study period 3. Prior exposure to complement inhibitor therapy for retinal disease in either eye at any time remains exclusionary 9. Any intraocular surgery or thermal laser within 3 months of date of randomization 10. Any ocular or periocular infection (including blepharitis), or ocular surface inflammation in the past 12 weeks 11. Any prior thermal laser in the macular region, regardless of indication (self-report) 12. Any evidence of choroidal neovascularization in study eye 13. Enrollment in another interventional trial during the trial period
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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.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Washington University
RECRUITINGSt Louis, Missouri, 63110, United States
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Other studies related to the condition(s) this trial covers.
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