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NCT Number: NCT07118670

High Dose Eylea for Proliferative Diabetic Retinopathy Outcomes

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.

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This study is active but is not currently recruiting participants.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Retina Consultants of Texas - Austin Retina Associates, Austin, Texas, United States

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About this study

Subjects will be administered intravitreal aflibercept 8mg every 4 weeks, starting at week 0 for 8 weeks, then may be extended by 4-week intervals with no maximum between treatments with an end of study visit at week 96. At any visit, it will be determined if supplemental treatment is needed as determined by disease activity assessment until there is no regression of disease is noted and the extension intervals will begin again.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 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

Exclusion criteria

  • 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
  • Blood pressure > /=180/100 mmHg systolic/ diastolic, while seated
  • Pregnant or breastfeeding women
  • Sexually active men* or women of childbearing potential** who are unwilling to practice adequate contraception during the study (adequate contraceptive measures include stable use of oral contraceptives or other prescription pharmaceutical contraceptives for 2 or more menstrual cycles prior to screening/ baseline; intrauterine device [IUD]; bilateral tubal ligation; vasectomy; condom plus contraceptive sponge, foam, or jelly, or diaphragm plus contraceptive sponge, foam, or jelly, or total abstinence).
  • Contraception is not required for men with documented vasectomy
  • Postmenopausal women must be amenorrhoeic for at least 12 months in order not to be considered of childbearing potential. Pregnancy testing and contraception are not required for women with documented hysterectomy or tubal ligation.

Treatment and study plan

Aflibercept 8mg

Drug

Solution in Vial, intravitreal (IVT) injection

Other names: Eylea HD, 8 mg Aflibercept, Aflibercept High Dose VEGF Trap-Eye

Primary outcomes

  1. Primary Endpoint - DRSS step improvement

    Time frame: Baseline through weeks 48 and 96

    Proportion of eyes with ≥ 2 step improvement in diabetic retinopathy severity scale (DRSS), as assessed by the central reading center

Secondary outcomes

  1. DRSS Step Improvement

    Time frame: Baseline to week 24 and 96

    Proportion of eyes with ≥ 2 step improvement in diabetic retinopathy severity scale (DRSS), as assessed by the central reading center

  2. Mean change in BCVA

    Time frame: Baseline through weeks 24, 48, 72, and 96

    Evaluate the mean change in the best corrected visual acuity (BCVA)

  3. Conversion from PDR to NPDR

    Time frame: Baseline to weeks 24, 48, 72, 96.

    Proportion of eyes converting from proliferative diabetic retinopathy (PDR) to non-proliferative diabetic retinopathy (NPDR)

  4. DRSS Step Improvement

    Time frame: Baseline to weeks 24, 48, 72, 96

    Proportion of eyes with >= 3 step improvement in diabetic retinopathy severity scale (DRSS)

  5. Retinal non-perfusion change

    Time frame: Baseline to weeks 24, 48, 72, 96.

    Mean change (quantitative area) in retinal vascular non-perfusion (RNP) based on ultrawide-field fluorescein angiography (UWFA)

  6. Changes in visual function on HVF

    Time frame: Baseline to weeks 48, 96.

    Mean change in Humphrey visual field 30-2 total point score

  7. CST change

    Time frame: Baseline to weeks 24, 48, 72, 96

    Mean change in CST

  8. Number of supplemental treatments

    Time frame: Baseline through week 96

    Mean and median number of intravitreal (IVT) 8mg aflibercept injections (with and without intravitreal 8 mg aflibercept injections given for DME) as well as annualized injection frequencies

  9. Worsening PDR

    Time frame: Baseline to week 96

    Time to first worsening of proliferative diabetic retinopathy associated event(s), including PDR-related vitrectomy, new or worsening preretinal or vitreous hemorrhage, retinal detachment, panretinal photocoagulation (time-to-event analysis)

  10. CI-DME development

    Time frame: Baseline to week 96

    ·Time to first development of central-involved DME (CI-DME) defined as > 320 µm in the study eye (time-to-event analysis)

  11. AEs notated

    Time frame: Baseline to week 96

    Incidence and severity of ocular and systemic adverse events

Sponsors and collaborators

Lead sponsor

Edward Wood, MD

Other

Collaborators

  • Greater Houston Retina Research

Registry information

Official study title

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)

Acronym: HERO

Important dates

Study start
2025
Primary completion
2028
Study completion
2028
First posted
Aug 12, 2025
Registry last updated
Mar 18, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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