NCT06850922CompletedPhase 1/2
A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of RO7446603 Administered Alone or in Combination With Aflibercept or Faricimab in Participants With Diabetic Macular Edema
A Phase I/II Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of RO7446603 Administered Alone or in Combination With Aflibercept or Faricimab in Patients With Diabetic Macular Edema
Source: ClinicalTrials.gov · Last updated 23 Jun 2026
Brief summary (registry, in English)
This study aims to evaluate the ocular and systemic safety, tolerability and efficacy of RO7446603 in participants with diabetic macular edema (DME). The study consists of 2 segments: Phase I (Parts 1-4) and Phase II (Part 5). Phase I investigated the safety of RO7446603 following a single and multiple intravitreal (IVT) doses as monotherapy or co-administered with IVT aflibercept or IVT faricimab (in separate injections). Phase II will investigate the safety, tolerability, pharmacokinetics (PK) and efficacy of two dose levels of RO7446603 in combination with faricimab, with the two drugs co-mixed and administered as a single IVT injection, compared to faricimab alone. The first participant was enrolled in the Phase I segment on June 22, 2022. Phase I has been completed.
- Status (registry)
- Completed
- Phase (registry)
- Phase 1/2
- Study type
- Interventional
- Enrollment
- 388 (actual)
- First submitted
- 26 Feb 2025
- Start date
- 22 Jun 2022
- Primary completion date
- 19 May 2026
- Lead sponsor
- Genentech, Inc.
- Diseases
- Diabetic eye disease
- NCT number
- NCT06850922
What you commit to
- Study type: Interventional · Phase 1/2
- Participants enrolled: 388
- From 22 Jun 2022 to the primary completion date, 19 May 2026
- 77 sites in 3 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Currently untreated DM or previously untreated participants who initiated oral anti-diabetic medication or insulin within 90 days prior to Day 1
- For Parts 1-4: IVT anti-VEGF treatment within 90 days prior to Day 1; For Part 5: IVT anti-VEGF treatment within 120 days prior to Day 1 or IVT anti-VEGF treatment prior to Day 1 for treatment naïve participants
- Treatment with SUSVIMOTM (ranibizumab injection) prior to Day 1
- Any IVT or periocular (sub-tenons) corticosteroid treatment within 6 months prior to Day 1
Other illness
- Any current or history of ocular disease other than DME that may confound assessment of the macula or affect central vision
- Active or history of uveitis, vitritis (grade trace or above), and/or scleritis in either eye Other protocol-specified inclusion/exclusion criteria may apply
Other
- Uncontrolled blood pressure (BP)
- Pregnancy or breastfeeding, or intention to become pregnant during the study
- Proliferative diabetic retinopathy (PDR) in the study eye
Who the study is looking for
- Documented diagnosis of diabetes mellitus (DM) (Type 1 or Type 2) with glycated hemoglobin (HbA1c) \< 12%
- Macular thickening secondary to DME involving the center of the fovea \> 325 microns
- Decreased VA attributable primarily to DME between 25 and 73 ETDRS letters
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (77)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Beijing Tongren Hospital, Capital Medical University Coordinator of this site? Confirm its status | Beijing | China | Unknown status |
| Peking Union Medical College Hospital Coordinator of this site? Confirm its status | Beijing | China | Unknown status |
| Beijing Hospital Coordinator of this site? Confirm its status | Beijing | China | Unknown status |
| Shanghai General Hospital - North Campus Coordinator of this site? Confirm its status | Shanghai | China | Unknown status |
| Tianjin Medical University Eye Hospital Coordinator of this site? Confirm its status | Tianjin | China | Unknown status |
| Eye Hospital, WMU (Zhejiang Eye Hospital) Coordinator of this site? Confirm its status | Wenzhou | China | Unknown status |
| Emanuelli Research and Development Center, LLC Coordinator of this site? Confirm its status | Arecibo | Puerto Rico | Unknown status |
| Retina Research Institute of Texas Coordinator of this site? Confirm its status | Abilene | United States | Unknown status |
| Retina Consultants of Hawaii Coordinator of this site? Confirm its status | ‘Aiea | United States | Unknown status |
| Texas Retina Associates Coordinator of this site? Confirm its status | Arlington | United States | Unknown status |
| Western Carolina Retinal Associate PA Coordinator of this site? Confirm its status | Asheville | United States | Unknown status |
| Southeast Retina Center Coordinator of this site? Confirm its status | Augusta | United States | Unknown status |
| University of Colorado - Eye Center - PPDS Coordinator of this site? Confirm its status | Aurora | United States | Unknown status |
| Austin Clinical Research, LLC Coordinator of this site? Confirm its status | Austin | United States | Unknown status |
| Austin Retina Associates Coordinator of this site? Confirm its status | Austin | United States | Unknown status |
| The Retina Care Center Coordinator of this site? Confirm its status | Baltimore | United States | Unknown status |
| Johns Hopkins Hospital Coordinator of this site? Confirm its status | Baltimore | United States | Unknown status |
| Retina & Vitreous of Texas Coordinator of this site? Confirm its status | Bellaire | United States | Unknown status |
| Cincinnati Eye Institute Coordinator of this site? Confirm its status | Blue Ash | United States | Unknown status |
| Retinal Diagnostic Center Coordinator of this site? Confirm its status | Campbell | United States | Unknown status |
| North Carolina Retina Associates Coordinator of this site? Confirm its status | Cary | United States | Unknown status |
| Retina Group of Washington Coordinator of this site? Confirm its status | Chevy Chase | United States | Unknown status |
| Illinois Eye and Ear Infirmary Coordinator of this site? Confirm its status | Chicago | United States | Unknown status |
| University Hospitals Cleveland Medical Center* Coordinator of this site? Confirm its status | Cleveland | United States | Unknown status |
| Retina Consultants of Southern Colorado PC Coordinator of this site? Confirm its status | Colorado Springs | United States | Unknown status |
| Ohio State Eye and Ear Institute Coordinator of this site? Confirm its status | Columbus | United States | Unknown status |
| Texas Retina Associates Coordinator of this site? Confirm its status | Dallas | United States | Unknown status |
| Retina Specialists of Colorado Coordinator of this site? Confirm its status | Denver | United States | Unknown status |
| Duke University Medical Center Coordinator of this site? Confirm its status | Durham | United States | Unknown status |
| Erie Retina Research Coordinator of this site? Confirm its status | Erie | United States | Unknown status |
| National Ophthalmic Research Institute Coordinator of this site? Confirm its status | Fort Myers | United States | Unknown status |
| Retina Consultants of Orange County Coordinator of this site? Confirm its status | Fullerton | United States | Unknown status |
| Charles Retina Institute Coordinator of this site? Confirm its status | Germantown | United States | Unknown status |
| Cumberland Valley Retina Consultants Coordinator of this site? Confirm its status | Hagerstown | United States | Unknown status |
| Long Island Vitreoretinal Consultants;Opthalmology Coordinator of this site? Confirm its status | Hauppauge | United States | Unknown status |
| Graystone Eye-Hickory Coordinator of this site? Confirm its status | Hickory | United States | Unknown status |
| Raj K. Maturi, MD PC Coordinator of this site? Confirm its status | Indianapolis | United States | Unknown status |
| Florida Retina Institute Coordinator of this site? Confirm its status | Jacksonville | United States | Unknown status |
| Retina Vitreous Surgeons of CNY, PC Coordinator of this site? Confirm its status | Liverpool | United States | Unknown status |
| Advanced Vision Research Institute Coordinator of this site? Confirm its status | Longmont | United States | Unknown status |
| Opthalmic Consultants of LI Coordinator of this site? Confirm its status | Lynbrook | United States | Unknown status |
| Piedmont Eye Center Coordinator of this site? Confirm its status | Lynchburg | United States | Unknown status |
| Georgia Retina PC Coordinator of this site? Confirm its status | Marietta | United States | Unknown status |
| Valley Retina Institute P.A. Coordinator of this site? Confirm its status | McAllen | United States | Unknown status |
| Retinal Consultants Medical Group Coordinator of this site? Confirm its status | Modesto | United States | Unknown status |
| Northern California Retina Vitreous Associates Coordinator of this site? Confirm its status | Mountain View | United States | Unknown status |
| Wagner Kapoor Institute Coordinator of this site? Confirm its status | Norfolk | United States | Unknown status |
| University Retina and Macula Associates, PC Coordinator of this site? Confirm its status | Oak Forest | United States | Unknown status |
| Wills Eye Hospital Coordinator of this site? Confirm its status | Philadelphia | United States | Unknown status |
| Retinal Research Institute, LLC Coordinator of this site? Confirm its status | Phoenix | United States | Unknown status |
| Arizona Retina and Vitreous Consultants Coordinator of this site? Confirm its status | Phoenix | United States | Unknown status |
| Associated Retinal Consultants PC Coordinator of this site? Confirm its status | Phoenix | United States | Unknown status |
| Virginia Eye Institute - Richmond - 7301 Forest Ave Coordinator of this site? Confirm its status | Richmond | United States | Unknown status |
| Retina Institute of Virginia Coordinator of this site? Confirm its status | Richmond | United States | Unknown status |
| Associated Retinal Consultants - Royal Oak Coordinator of this site? Confirm its status | Royal Oak | United States | Unknown status |
| Retinal Consultants Medical Group Coordinator of this site? Confirm its status | Sacramento | United States | Unknown status |
| Retina Consultants Minnesota Coordinator of this site? Confirm its status | Saint Louis Park | United States | Unknown status |
| Retina Associates of Utah, PLLC;Clinical Research Coordinator of this site? Confirm its status | Salt Lake City | United States | Unknown status |
| Brown Retina Institute Coordinator of this site? Confirm its status | San Antonio | United States | Unknown status |
| Medical Center Ophthalmology Associates Coordinator of this site? Confirm its status | San Antonio | United States | Unknown status |
| Retina Consultants of Texas: San Antonio Coordinator of this site? Confirm its status | San Antonio | United States | Unknown status |
| University of California San Francisco Coordinator of this site? Confirm its status | San Francisco | United States | Unknown status |
| Sewickely Eye Group Coordinator of this site? Confirm its status | Sewickley | United States | Unknown status |
| Spokane Eye Clinical Research Coordinator of this site? Confirm its status | Spokane | United States | Unknown status |
| Retina Partners of Northwest Arkansas, PLLC Coordinator of this site? Confirm its status | Springdale | United States | Unknown status |
| Cascade Medical Research Institute, LLC Coordinator of this site? Confirm its status | Springfield | United States | Unknown status |
| Retina Associates of Florida;Retina Associates of Florida Coordinator of this site? Confirm its status | Tampa | United States | Unknown status |
| Retina Consultants of Texas Coordinator of this site? Confirm its status | The Woodlands | United States | Unknown status |
| Macula Retina Vitreous Research Institute Coordinator of this site? Confirm its status | Torrance | United States | Unknown status |
| Tulsa Retina Consultants Coordinator of this site? Confirm its status | Tulsa | United States | Unknown status |
| North Carolina (NC) Retina Associates - Wake Forest Office Coordinator of this site? Confirm its status | Wake Forest | United States | Unknown status |
| Chesapeake Retina Centers - Waldorf Coordinator of this site? Confirm its status | Waldorf | United States | Unknown status |
| Bay Area Retina Associates;Study Department Coordinator of this site? Confirm its status | Walnut Creek | United States | Unknown status |
| Retina Group of New England Coordinator of this site? Confirm its status | Waterford | United States | Unknown status |
| Palmetto Retina Center Coordinator of this site? Confirm its status | West Columbia | United States | Unknown status |
| Strategic Clinical Research Group, LLC Coordinator of this site? Confirm its status | Willow Park | United States | Unknown status |
| Piedmont Retina Specialists Coordinator of this site? Confirm its status | Winston-Salem | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.