High Dose Eylea for Proliferative Diabetic Retinopathy Outcomes
HERO
A 96-week, Single-arm Study to Evaluate the Efficacy and Safety of 8mg Aflibercept in Subjects With Proliferative Diabetic Retinopathy (PDR) Without Center-involved Diabetic Macular Edema (DME)
1 other identifier
interventional
40
1 country
3
Brief Summary
The purpose of this Phase 4 study is to evaluate the safety of aflibercept 8mg in patients with proliferative diabetic retinopathy without center-involved diabetic macular edema.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started Dec 2025
Typical duration for phase_4
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 29, 2025
CompletedFirst Posted
Study publicly available on registry
August 12, 2025
CompletedStudy Start
First participant enrolled
December 8, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 1, 2028
March 18, 2026
March 1, 2026
2.2 years
July 29, 2025
March 16, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Primary Endpoint - DRSS step improvement
Proportion of eyes with ≥ 2 step improvement in diabetic retinopathy severity scale (DRSS), as assessed by the central reading center
Baseline through weeks 48 and 96
Secondary Outcomes (11)
DRSS Step Improvement
Baseline to week 24 and 96
Mean change in BCVA
Baseline through weeks 24, 48, 72, and 96
Conversion from PDR to NPDR
Baseline to weeks 24, 48, 72, 96.
DRSS Step Improvement
Baseline to weeks 24, 48, 72, 96
Retinal non-perfusion change
Baseline to weeks 24, 48, 72, 96.
- +6 more secondary outcomes
Study Arms (1)
All subjects
EXPERIMENTALSubjects will receive 8mg aflibercept at week 0, 4, and 8. At week 12, subjects will enter a variable treatment and extension approach where they may be extended by 4-week intervals with no maximum interval between treatments until the end of study visit at week 96. Supplemental: Disease activity will be assessed at every 4-week visit and supplemental treatment with panretinal photocoagulation (PRP) as needed and/or intravitreal (IVT) 8mg aflibercept injections as determined by the regression patterns listed below. No regression: administer IVT aflibercept 8mg at 4-week intervals. If NV is not assessable due to VH, continue IVT and reassess; PRP is deferred. Supplemental PRP permitted ONLY if NV is assessable AND "No Regression" persists after prespecified treatment thresholds. Partial regression: Continue IVT aflibercept 8mg. Continue monthly observation. PRP not permitted. Total Regression: Without IVT aflibercept 8mg. Continue monthly observation. PRP not permitted.
Interventions
Solution in Vial, intravitreal (IVT) injection
Eligibility Criteria
You may qualify if:
- Willing and able to comply with clinic visits and study-related procedures
- Provide signed informed consent
- Men or women \> 18 years of age at the time of signing the Informed Consent Form
- Diagnosed with type 1 or type 2 diabetes mellitus
- BCVA ETDRS \>/= 20/400 in the study eye
- Any Proliferative Diabetic Retinopathy as diagnosed via clinical examination and fluorescein angiography
You may not qualify if:
- Any known hypersensitivity to any of the components of aflibercept 8 mg injection
- Any known hypersensitivity to any contrast media (e.g., fluorescein), dilating eye drops, disinfectants (e.g., iodine), or any of the anesthetics and antimicrobial preparations used bye the site during the study
- Prior systemic anti-VEGF or IVT anti-VEGF treatment in the study eye within 3 months of enrollment. (i.e., 3-month (90 days) wash-out period for anti-VEGF allowed)
- Any intra- or periocular corticosteroid treatment in the study eye within 3 months (90 days) of baseline
- Any intraocular sustained-release treatment or implantable device in the study eye
- Any gene therapy in the study eye
- SD-OCT central subfield thickness measurement of \> 320 µm, in the study eye
- Evidence of ocular infection, in the study eye, at time of screening
- IOP \>/= 25 mmHg in the study eye
- Any intraocular inflammation/ infection in either eye within 12 weeks (84 days) of the screening visit
- History of vitreoretinal surgery in the study eye
- Any prior Panretinal laser photocoagulation (PRP) in the study eye
- Current vitreous hemorrhage obscuring clear view of the macula in the study eye (precluding baseline imaging and DRSS grading)
- Presence of any tractional retinal detachment (macular or peripheral) or pre-retinal fibrovascular proliferation (macular or peripheral) causing definite retinal traction or elevation (e.g. retinal tenting/peaking, tractional folds, or OCT-confirmed tractional distortion) in the study eye. Pre-retinal fibrovascular tissue without evidence of retinal traction or elevation (macular or peripheral) is permitted
- Cataract surgery in the study eye within 4 weeks prior to Screening/ Day 0
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Edward Wood, MDlead
- Greater Houston Retina Researchcollaborator
Study Sites (3)
Retina Consultants of Texas - Austin Retina Associates
Austin, Texas, 78705, United States
Retina Consultants of Texas
Bellaire, Texas, 77401, United States
Retina Consultants of Texas - San Antonio
San Antonio, Texas, 78240, United States
MeSH Terms
Interventions
Study Officials
- PRINCIPAL INVESTIGATOR
Edward Wood, MD
Retina Consultants of Texas
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
July 29, 2025
First Posted
August 12, 2025
Study Start
December 8, 2025
Primary Completion (Estimated)
February 1, 2028
Study Completion (Estimated)
April 1, 2028
Last Updated
March 18, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share