The Role of Antioxidant Supplementation in Keratoconus Patients
Public ClinicalTrials.gov record NCT02827747. 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.
Official title
The Role of Antioxidants in Keratoconus Patients-A Randomized Controlled Trial of Oral Supplementation of Glutathione, Vitamin A, Vitamin C and Vitamin E
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Keratoconus is the most common primary cornea ectasia, where the cornea undergoes structural changes, leading to loss of tissue integrity and vision loss. The prevalence of Keratoconus is 1:2000 in the general population. Oxidative stress has been thought to have a major effect in the disease pathogenesis of Keratoconus. In vitro studies have shown increase in metabolites related to oxidative stress in Keratoconus disease, and that Keratoconus cells undergo increased oxidative stress and tissue damage. Animal models have shown a therapeutic effect of Vitamin C (ascorbate) in corneal wound healing. Glutathione and Vitamins A, C, and E are important antioxidants in the human body. To this date, the role of systemic antioxidant supplementation in Keratoconus patients has yet to be studied. In addition, it has yet to be established as to whether there is a correlation between serum antioxidant levels, and the severity of disease in the Keratoconus patient. The investigators propose to investigate the plasma levels of antioxidants in relation to disease severity. The investigators will also investigate the role of antioxidant supplementation-consisting of parenteral Glutathione (GSH), and Vitamins A, C and E-in delaying the disease progression in Keratoconus.
Study identification
- NCT ID
- NCT02827747
- Recruitment status
- Withdrawn
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- Not listed
Conditions and interventions
Conditions
Interventions
- Antioxidants (Vitamins A,C,E) plus GSH Other
- Placebo Other
- Centrum Dietary Supplement
- Dietary Sources Combination Product
Other · Dietary Supplement · Combination Product
Eligibility (public fields only)
- Age range
- 18 Years to 45 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
- Jul 31, 2021
- Primary completion
- Jun 30, 2022
- Completion
- Feb 28, 2023
- Last update posted
- Aug 15, 2021
2021 – 2023
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Bascom Palmer Eye Institute-- Palm Beach Gardens | Palm Beach Gardens | Florida | 33418 | — |
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 NCT02827747, 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 Aug 15, 2021 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02827747 live on ClinicalTrials.gov.