CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 20 enrolled
Drug / intervention
carbidopa-levodopa 25-100 mg tabletsdrug
Likely dose
carbidopa-levodopa 25-100 mg tabletsfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03022318
NCT03022318Phase 2Completed

Short Term Effects of Carbidopa-levodopa in Neovascular AMD

Snyder, Robert W., M.D., Ph.D., P.C.·interventional·Posted Jan 16, 2017·Updated Sep 12, 2025

In Brief

A Phase 2 clinical trial evaluating carbidopa-levodopa 25-100 mg tablets for Age-related Macular Degeneration. Completed, enrolled 20 participants across 1 site.

Detailed Summary

From 3 large patient databases, patients diagnosed with AMD who have never taken levodopa(L-DOPA) containing medications have a mean age of diagnosis at 71 years. Patients who have been treated with L-DOPA containing medications have a mean age of diagnosis of AMD at 79 years. L-DOPA binds to GPR143 in the retinal pigment epithelium, and releases PEDF, which protects the retina and downregulates VEGF, which is the cause of neovascularization. The Investigators will evaluate the safety and tolerability of carbidopa-levodopa in patients with Neovascular AMD, and measure the effects on visual acuity and retinal abnormalities due to "wet" (neovascular) AMD.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

Phase 2CompletedFinished
2017201820192020202120222023202420252026
First PostedJan 16, 2017
Enrollment StartMay 2, 2017
Primary CompletionDec 26, 2019
Study CompletionMay 4, 2020
TodayJul 2, 2026
Enrollment to primary: 2.6 yearsPosted 9.5 years ago

Interventions

carbidopa-levodopa 25-100 mg tabletsdrug

See arm/group descriptions