Randomized Trial of Vitamin A and Vitamin E Supplementation for Retinitis Pigmentosa
Sponsor: National Eye Institute (NEI)
This PHASE3 trial investigates Retinitis Pigmentosa and is currently completed. National Eye Institute (NEI) leads this study, which shows 5 recorded versions since 1984 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.
Status Flow
Change History
5 versions recorded-
Sep 2024 — Present [monthly]
Completed PHASE3
-
Jul 2024 — Sep 2024 [monthly]
Completed PHASE3
-
Jan 2021 — Jul 2024 [monthly]
Completed PHASE3
-
Jun 2018 — Jan 2021 [monthly]
Completed PHASE3
-
Jan 2017 — Jun 2018 [monthly]
Completed PHASE3
First recorded
May 1984
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- National Eye Institute (NEI)
For direct contact, visit the study record on ClinicalTrials.gov .
Study Locations
No location information available.