Recruiting
Phase 3

4D-150 vs. Aflibercept

Sponsor:

4D Molecular Therapeutics

Code:

NCT07867080

Conditions

Diabetic Macular Edema (DME)

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

4D-150 IVT (3x10^10 vg)

EYELEA ® (aflibercept) Injection 2 mg (0.05mL)

Study Details

Brief summary:

A Phase 3, Randomized, Double-Masked, Active-Controlled Trial to Evaluate the Safety, Efficacy, and Durability of a Single Intravitreal Injection of 4D-150 versus Aflibercept in Adults with Diabetic Macular Edema (4SIGHT)

Conditions

Diabetic Macular Edema (DME)

Study ID

NCT07867080

Start date

Sep 18, 2026

Status verified date

Oct, 2026

Completion date

Jan, 2030

Anticipated

Primary completion date

Jan, 2029

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

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

Study Design

Enrollment

514 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: 4D-150 IVT (3x10^10 vg/eye)

active comparator: Active Comparator (AFLB) 2mg IVT

Interventions

4D-150 IVT (3x10^10 vg)

If randomized to the 4D-150 treatment arm, 4D-150 will be administered at the assigned dose level as a single dose IVT injection on Day 1

EYELEA ® (aflibercept) Injection 2 mg (0.05mL)

EYLEA ® (aflibercept) will be administered at applicable visits

Primary outcome measure

  • Mean change from baseline in Early Treatment Diabetic Retinopathy Study best-corrected visual acuity letter score at Week 52 [ Time Frame: 52 weeks ]

Central Contacts and Locations

Central contacts

4SIGHT Medical Monitoring Distribution List

4D150C005_MM@4dmt.com

Locations

Research Network Arizona

Recruiting

Scottsdale, Arizona, United States, 85255

The Retina Partners

Recruiting

Encino, California, United States, 91436

Retina Specialists of Colorado - Aurora

Recruiting

Aurora, Colorado, United States, 80012

Retinal Specialty Institute

Recruiting

Pensacola, Florida, United States, 32503

Retina Vitreous Associates of Florida

Recruiting

Tampa, Florida, United States, 33607

Retina Associates, Ltd.

Recruiting

Elmhurst, Illinois, United States, 60126

Sierra Eye Associates

Recruiting

Reno, Nevada, United States, 89502

Austin Clinical Research

Recruiting

Austin, Texas, United States, 78750

Texas Retina Center

Recruiting

Houston, Texas, United States, 77030

More Information

Sponsor

4D Molecular Therapeutics

Last update posted

Oct 9, 2026

Last verified

Oct, 2026

Keywords

  • Diabetic Macular Edema
  • DME
  • Retinal gene therapy
  • Intravitreal gene therapy
  • Genetic Medicine
  • Ocular Gene Therapy
  • Eye Diseases
  • Intravitreal Injections
  • Aflibercept

Trial information was received from ClinicalTrials.gov and was last updated on 2026-10-10. This information was provided to ClinicalTrials.gov by 4D Molecular Therapeutics on 2026-10-09. Recruitment status is synced daily from ClinicalTrials.gov and may not reflect the sponsor's current status. Confirm during your call.