CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 35 enrolled
Drug / intervention
Carbidopa-Levodopa, 25 Mg-100 Mg Oral Tabletdrug
Likely dose
Carbidopa-Levodopa, 25 Mg-100 Mg Oral Tabletfrom 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/NCT03023059
NCT03023059Phase 2Completed

Proof of Concept and Dose Ranging Study of Carbidopa-levodopa in Neovascular AMD

Snyder, Robert W., M.D., Ph.D., P.C.·interventional·Posted Jan 18, 2017·Updated Sep 12, 2025

In Brief

A Phase 2 clinical trial evaluating Carbidopa-Levodopa, 25 Mg-100 Mg Oral Tablet for Age-related Macular Degeneration. Completed, enrolled 35 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. The Investigators will evaluate the safety and tolerability of carbidopa-levodopa in patients with Neovascular AMD who are already on treatment with anti-VEGF intraocular injections, and measure the effects on visual acuity, retinal abnormalities due to "wet" AMD, and document the number of anti-VEGF injections required during the study.

Study Details

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

Timeline

Phase 2CompletedFinished
2017201820192020202120222023202420252026
First PostedJan 18, 2017
Enrollment StartMay 2, 2017
Primary CompletionMar 18, 2020
Study CompletionMay 4, 2020
TodayJul 2, 2026
Enrollment to primary: 2.9 yearsPosted 9.5 years ago

Interventions

Carbidopa-Levodopa, 25 Mg-100 Mg Oral Tabletdrug

See Arm description