A Pivotal Safety and Efficacy Study of OCS-01 Eye Drops in Participants With Diabetic Macular Edema (DIAMOND 2)
Public ClinicalTrials.gov record NCT06172257. 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
A Phase 3 Double-masked, Randomized, Multicenter Study of the Efficacy and Safety of OCS 01 Eye Drops in Subjects With Diabetic Macular Edema
Study identification
- NCT ID
- NCT06172257
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Oculis
- Industry
- Enrollment
- 401 participants
Conditions and interventions
Conditions
Interventions
- Dexamethasone ophthalmic suspension (OCS-01) Drug
- Vehicle Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years to 85 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
- Mar 14, 2024
- Primary completion
- Apr 1, 2026
- Completion
- Apr 1, 2026
- Last update posted
- Apr 30, 2026
2024 – 2026
United States locations
- U.S. sites
- 42
- U.S. states
- 16
- U.S. cities
- 38
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Associated Retina Consultants | Gilbert | Arizona | 85297 | — |
| Associated Retina Consultants | Phoenix | Arizona | 85020 | — |
| Retinal Consultants of Arizona - Phoenix North | Phoenix | Arizona | 85053 | — |
| California Retina Consultants | Bakersfield | California | 93309 | — |
| Retina Associates of Southern California | Huntington Beach | California | 92647 | — |
| Stanford Byers Eye Institute | Palo Alto | California | 94303 | — |
| Retinal Consultants Medical Group, Inc | Sacramento | California | 95825 | — |
| Retinal Consultants Medical Group | Sacramento | California | 95841 | — |
| California Retina Consultants | Santa Barbara | California | 93103 | — |
| Macula Retina Vitreous Center | Torrance | California | 90503 | — |
| Retina Specialists of Colorado | Denver | Colorado | 80210 | — |
| Eye Care Center of Northern Colorado | Longmont | Colorado | 80503 | — |
| Sibia Eye Institute | Boynton Beach | Florida | 11195 | — |
| Blue Ocean Clinical Research | Clearwater | Florida | 33761 | — |
| Advanced Research | Coral Springs | Florida | 33067 | — |
| Retina Group of Florida | Fort Lauderdale | Florida | 33308 | — |
| East Coast Institute for Research | Jacksonville | Florida | 32256 | — |
| Retina Consultants of Southwest Florida | Naples | Florida | 33912 | — |
| Marietta Eye Clinic | Marietta | Georgia | 30060 | — |
| Georgia Retina | Peachtree City | Georgia | 30269 | — |
| Illinois Retina Associates | Oak Park | Illinois | 60304 | — |
| Cumberland Valley Retina Consultants | Hagerstown | Maryland | 21740 | — |
| Mid Atlantic Retina Specialists | Hagerstown | Maryland | 21740 | — |
| Ophthalmic Consultants of Boston | Boston | Massachusetts | 02114 | — |
| Mississippi Retina Associates | Jackson | Mississippi | 90033 | — |
| Sierra Eye Associates | Reno | Nevada | 89502 | — |
| VitreoRetinal Consultants of NY | Hauppauge | New York | 11788 | — |
| Island Retina | Shirley | New York | 11967 | — |
| Vitreoretinal Consultants of NY | Westbury | New York | 11590 | — |
| Erie Retina Research | Erie | Pennsylvania | 16507 | — |
| Vision Research Solutions in Philadelphia | Philadelphia | Pennsylvania | 19141 | — |
| Palmetto Retina Center | West Columbia | South Carolina | 29169 | — |
| Charles Retina Institute | Germantown | Tennessee | 38138 | — |
| Tennessee Retina | Nashville | Tennessee | 37203 | — |
| Retina Consultants of Texas | Bellaire | Texas | 77401 | — |
| Star Retina | Burleson | Texas | 76028 | — |
| Houston Eye Associates, North Loop | Houston | Texas | 77025 | — |
| Austin Retina Associates | Round Rock | Texas | 78681 | — |
| San Antonio Eye Center - Downtown Clinic | San Antonio | Texas | 78215 | — |
| Medical Center Ophthalmology Associates | San Antonio | Texas | 78240 | — |
| Tyler Retina Consultants | Tyler | Texas | 75703 | — |
| Piedmont Eye Center | Lynchburg | Virginia | 24502 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 20 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT06172257, 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 Apr 30, 2026 · Synced Jul 23, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT06172257 live on ClinicalTrials.gov.