Oral Metformin for Treatment of ABCA4 Retinopathy
Public ClinicalTrials.gov record NCT04545736. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT04545736
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Lead sponsor
- National Eye Institute (NEI)
- NIH
- Enrollment
- 56 participants
Conditions and interventions
Interventions
- Metformin hydrochloride Drug
Drug
Eligibility (public fields only)
- Age range
- 12 Years to 100 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 22, 2020
- Primary completion
- Sep 29, 2028
- Completion
- Sep 29, 2028
- Last update posted
- May 11, 2026
2020 – 2028
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center | Bethesda | Maryland | 20892 | Recruiting |
| University of Michigan | Ann Arbor | Michigan | 48109-0624 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04545736, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 11, 2026 · Synced May 19, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04545736 live on ClinicalTrials.gov.