4D-150 gene therapy injected into the eye for adults with diabetic macular edema
Official title: A Phase 3, Randomized, Double-Masked, Active-Controlled Trial to Evaluate the Efficacy, Safety, and Durability of a Single Intravitreal Injection of 4D-150 Versus Aflibercept in Adults With Diabetic Macular Edema (4SIGHT)
Run by 4D Molecular Therapeutics · NCT07867080 · Data updated 2026-11-12
This study tests whether a one-time intravitreal injection of 4D-150 can help adults with diabetic macular edema compare to aflibercept.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 514 (estimated) |
| Sponsor | 4D Molecular Therapeutics Industry-sponsored |
| Locations | 94 sites (Scottsdale, Arizona and 93 other locations) |
| Status | Recruiting |
| Started | September 18, 2026 |
| Main results expected | January 2029 |
| Study ends | January 2030 |
| Registry record updated | November 10, 2026 |
| Trial ID | NCT07867080 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18 and older with a documented diabetes diagnosis and macular thickening involving the fovea in the study eye.
✕Probably not a fit
Patients without the specific retinal response or with safety concerns may not experience benefit from 4D-150.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 3 trial is randomized, double-masked, and active-controlled, comparing a single intravitreal injection of 4D-150 to aflibercept in adults with DME. It aims to assess safety, efficacy, and how long the effect lasts. Participants will receive injections in one study eye and will be followed over time to monitor vision and retinal outcomes. The study is conducted at selected sites in Arizona and California under a sponsor-led program.
Why it matters
Potential benefit: If successful, 4D-150 could provide a new treatment option that may reduce or replace frequent anti-VEGF injections for DME.
How similar studies have gone: Other intravitreal gene therapy approaches have shown potential, but this phase 3 trial tests a novel, single-dose strategy in DME.
Who can join: the full rules
Show full inclusion / exclusion criteria
5.2 Inclusion Criteria Individuals eligible to participate in the trial must meet the following inclusion criteria: General Inclusion Criteria 1. Signed informed consent before any protocol-specified assessment is performed 2. Ability and willingness to comply with the protocol-specified procedures (including IVT injection) and visits, in the Investigator's judgment 3. ≥18 years of age at time of signing informed consent 4. Documented diagnosis of diabetes mellitus (Type 1 or Type 2) 5. WOCBP must agree to use highly effective contraception from the time of informed consent, through duration of trial participation 6. Agree to use a barrier method (e.g., condom) during intercourse for 3 months after Day 1 to prevent fluid transmission; sexually active males should not father a child or donate sperm during this period Ocular Inclusion Criteria 7. Macular thickening secondary to DME involving the center of the fovea (confirmed by the Reading Center) in the study eye 8. Study eye amenable to IVT injection identified 9. Presence of intraretinal fluid and/or subretinal fluid secondary to DME 10. Decreased visual acuity attributable primarily to DME, as determined by the Investigator 11. Demonstrated clinical response to aflibercept and functional stability in the study eye Exclusion Criteria: Individuals who meet any of the following exclusion criteria will not be eligible to participate: Ocular Condition 1. Macular conditions other than DME 2. History or presence of moderate Proliferative Diabetic Retinopathy or worse 3. History of retinal detachment in the study eye 4. History or presence of active inflammation or infection in either eye 5. History or presence of low Intraocular Pressure 6. Uncontrolled glaucoma or intraocular hypertension Ocular Treatments/Interventions: 7. Any prior concomitant treatment for DME 8. History of prior significant ocular surgery or treatment 9. Any prior investigational drug, agent, device, or gene therapy
Where it's running
-
Research Network Arizona
Scottsdale, Arizona, United States Recruiting -
The Retina Partners
Encino, California, United States Recruiting -
Retina Specialists of Colorado - Aurora
Aurora, Colorado, United States Recruiting -
Southwest Retina Consultants
Durango, Colorado, United States Recruiting -
Coastal Eye- Greenwich
Greenwich, Connecticut, United States Recruiting -
Retinal Specialty Institute
Pensacola, Florida, United States Recruiting
Show 44 more locations
-
Retina Vitreous Associates of Florida
Tampa, Florida, United States Recruiting -
Retina Associates, Ltd.
Elmhurst, Illinois, United States Recruiting -
University Retina and Macula Associates, PC - Lemont
Lemont, Illinois, United States Recruiting -
Deep Blue Retina Clinical Research, PLLC
Southaven, Mississippi, United States Recruiting -
Sierra Eye Associates
Reno, Nevada, United States Recruiting -
Envision Ocular, LLC
Bloomfield, New Jersey, United States Recruiting -
Retina Vitreous Surgeons of CNY, PC
New York, New York, United States Recruiting -
Asheville Eye Associates - Retina Division
Asheville, North Carolina, United States Recruiting -
Retina Vitreous Center
Edmund, Oklahoma, United States Recruiting -
Black Hills Regional Eye Institute
Rapid City, South Dakota, United States Recruiting -
Austin Clinical Research
Austin, Texas, United States Recruiting -
Texas Retina Associate
Dallas, Texas, United States Recruiting -
Texas Retina Center
Houston, Texas, United States Recruiting -
Tyler Retina Consultants
Tyler, Texas, United States Recruiting -
The Retina Group of Washington
Fairfax, Virginia, United States Recruiting -
Piedmont Eye Center
Lynchburg, Virginia, United States Recruiting -
Eye Clinic of Wisconsin
Wausau, Wisconsin, United States Recruiting -
Retina Consultants of Orange County
Fullerton, California, United States Not yet recruiting -
Retina Associates of Southern California
Huntington Beach, California, United States Not yet recruiting -
Retinal Consultants Medical Group Inc.
Sacramento, California, United States Not yet recruiting -
Retina Consultants San Diego
San Diego, California, United States Not yet recruiting -
Retina Institute of New England
San Mateo, California, United States Not yet recruiting -
Bay Area Retina Associates - Walnut Creek
Walnut Creek, California, United States Not yet recruiting -
Retina Consultants of Southern Colorado P.C.
Colorado Springs, Colorado, United States Not yet recruiting -
Retina Institute of New England, PC
Waterford, Connecticut, United States Not yet recruiting -
Retina Group of Florida
Fort Lauderdale, Florida, United States Not yet recruiting -
Florida Retina Institute
Orlando, Florida, United States Not yet recruiting -
Fort Lauderdale Eye Institute (FLEI)-Plantation
Plantation, Florida, United States Not yet recruiting -
Illinois Retina Associates
Oak Park, Illinois, United States Not yet recruiting -
Springfield Clinic
Springfield, Illinois, United States Not yet recruiting -
Midwest Eye Institute
Carmel, Indiana, United States Not yet recruiting -
The Retina Group of Washington
Chevy Chase, Maryland, United States Not yet recruiting -
Cumberland Valley Retina Consultants
Hagerstown, Maryland, United States Not yet recruiting -
Mid Atlantic Retina Specialist
Hagerstown, Maryland, United States Not yet recruiting -
Mississippi Retina Associates
Madison, Mississippi, United States Not yet recruiting -
The Retina Institute
St Louis, Missouri, United States Not yet recruiting -
NJ Retina
Edison, New Jersey, United States Not yet recruiting -
NYU Langone Health
New York, New York, United States Not yet recruiting -
Vitreoretinal Consultants of New York (VRCNY)
Westbury, New York, United States Not yet recruiting -
North Carolina Retina Associates - Cary Office
Cary, North Carolina, United States Not yet recruiting -
North Carolina Retina Associates- Wake Forest
Wake Forest, North Carolina, United States Not yet recruiting -
Retina Associates of Cleveland
Middleburg Heights, Ohio, United States Not yet recruiting -
EyeHealth Northwest
Portland, Oregon, United States Not yet recruiting -
Mid Atlantic Retina
Bethlehem, Pennsylvania, United States Withdrawn
+44 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: 4DMT Patient Advocacy
- Email: clinicaltrials@4DMT.com
- Phone: (888) 748-8881
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Oral N-Acetylcysteine for Diabetic Macular Edema
This study tests whether taking N-acetylcysteine by mouth can help people with center-involving diabetic macular edema who don’t yet need anti-VEGF therapy.
-
Corticosteroid for Diabetic Macular Edema (DME) in Adults with Diabetic Retinopathy
This trial tests whether intravitreal corticosteroid injections can influence inflammatory biomarkers and improve DME in adults with type 2 diabetes.
-
Oral BGE-102 for center-involved diabetic macular edema (Phase 2)
This trial tests whether taking BGE-102 by mouth, alone or with an anti-VEGF drug, can help preserve or improve vision in adults with center-involved diabetic macular edema.
-
Tabirafusp Tedromer vs Aflibercept for Diabetic Macular Edema (DME)
This study tests whether Tabirafusp Tedromer can work as well as or better than Aflibercept to help people with Diabetic Macular Edema.
-
Early imaging changes with faricimab versus biosimilar ranibizumab for diabetic retinal disease
This trial will see if faricimab or a biosimilar ranibizumab causes different early OCT and OCTA imaging changes in adults with diabetic retinopathy or diabetic macular edema who need anti-VEGF injections.
-
Comparing BAT5906 and Lucentis for diabetic macular edema
This test will see if BAT5906 works as well as Lucentis to improve vision in adults with diabetic macular edema.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.