Suspended

A Phase 2/3 Double-Masked, Randomized, 2 Stage, Multicenter Study of the Efficacy and Safety of OCS-01 Eye Drops in Subjects With Diabetic Macular Edema

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What is being tested

Dexamethasone ophthalmic suspension (OCS-01)

+ Vehicle

Drug
Who is being recruted

From 18 to 85 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Placebo-ControlledPhase 2 & 3
Interventional
Study Start: October 2021
See protocol details

Summary

Principal SponsorOculis
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: October 19, 2021

Actual date on which the first participant was enrolled.

A Phase 2/3 Pivotal Double-masked, Randomized, Vehicle-controlled, 2 stage, Multicenter Study of the Efficacy and Safety of OCS-01 Eye Drops in Participants with Diabetic Macular Edema Stage 1: To select a dose and dosing regimen for OCS-01 in participants with DME and evaluate the efficacy and safety of OCS-01 as compared to Vehicle in participants with DME. Stage 2: To evaluate the efficacy and safety of OCS-01 as compared to Vehicle at Week 52 in participants with DME.

Official TitleA Phase 2/3 Double-Masked, Randomized, 2 Stage, Multicenter Study of the Efficacy and Safety of OCS-01 Eye Drops in Subjects With Diabetic Macular Edema
Principal SponsorOculis
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

552 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 85 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Criteria

Inclusion Criteria (selection) - Stage 1: 1. Have a signed informed consent form before any study-specific procedures are performed. 2. Have DME with presence of intraretinal and/or subretinal fluid in the study eye, with central subfield thickness (CST) of ≥310 µm by SD-OCT at screening (Visit 1) (as assessed by an independent reading center). 3. Have a documented diagnosis of type 1 or type 2 diabetes mellitus at Visit 1 (Screening). Inclusion Criteria (selection) - Stage 2: 1. Have a signed informed consent form before any study-specific procedures are performed. 2. Have DME with presence of intraretinal and/or subretinal fluid in the study eye, with central subfield thickness (CST) of ≥310 µm by SD-OCT at screening (Visit 1) (as assessed by an independent reading center). 3. Have a documented diagnosis of type 1 or type 2 diabetes mellitus prior to Visit 1 (Screening). Exclusion criteria (selection) - Stage 1 and Stage 2: 1. Have macular edema considered to be because of a cause other than DME. 2. Have a decrease in BCVA because of causes other than DME. 3. Have a known history of significant macular ischemia which would prevent gain in visual acuity in the study eye.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

50% chance of being blinded to the placebo group

Treatment Groups

Group I

Experimental
dexamethasone ophthalmic suspension,1.5% \[15 mg/ mL\]

Group II

Placebo
Placebo is a Vehicle ophthalmic suspension of OCS-01

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 52 locations

Suspended

Arizona Retina and Vitreous Consultants

Phoenix, United StatesOpen Arizona Retina and Vitreous Consultants in Google Maps
Suspended

Phoenix Retina Associates

Phoenix, United States
Suspended

Retina Partners of Northwest Arkansas

Springdale, United States
Suspended

Retina-Vitreous Associates Medical Group

Beverly Hills, United States
Suspended52 Study Centers