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Study of a high-dose of aflibercept in patients with diabetic eye disease

A Randomized, Double-Masked, Active-Controlled Phase 2/3 Study of the Efficacy and Safety of High-Dose Aflibercept in Patients with Diabetic Macular Edema - PHOTON

Status
Active, not recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2019-003643-30-DE
Enrollment
640
Registered
2020-01-22
Start date
2020-06-15
Completion date
Unknown
Last updated
2024-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Macular Edema MedDRA version: 20.1 Level: LLT Classification code 10057934 Term: Diabetic macular edema System Organ Class: 100000004853

Interventions

Sponsors

Regeneron Pharmaceuticals, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Men or women =18 years of age (or country’s legal age of adulthood if the legal age is >18 years) with type 1 or type 2 diabetes mellitus 2. Diabetic macular edema (DME) with central involvement in the study eye 3. Best corrected visual acuity (BCVA) early treatment diabetic retinopathy study (ETDRS) letter score of 78 to 24 (approximate Snellen equivalent of 20/32 to 20/320) in the study eye with decreased vision determined to be primarily the result of DME 4. Willing and able to comply with clinic visits and study-related procedures 5. Provide informed consent signed by study patient or legally acceptable representative Other Inclusion Criteria Apply Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 362 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 278

Exclusion criteria

Exclusion criteria: 1. Evidence of macular edema due to any cause other than diabetes mellitus in either eye 2. Active proliferative diabetic retinopathy in the study eye 3. IVT anti-VEGF treatment (aflibercept, ranibizumab, bevacizumab, brolucizumab, pegaptanib sodium) or panretinal laser photocoagulation (PRP) / macular laser photocoagulation within 12 weeks (84 days) or intraocular or periocular corticosteroids within 16 weeks (112 days) of the screening visit in the study eye 4. Prior IVT investigational agents in either eye (eg, anti-ang-2/anti-VEGF bispecific monoclonal antibodies, gene therapy, etc.) at any time 5. Treatment with ocriplasmin (JETREA®) in the study eye at any time 6. Previous use of intraocular or periocular corticosteroids in the study eye within 16 weeks (112 days) of the screening visit, or ILUVIEN® or OZURDEX® IVT implants at any time 7. Intraocular pressure (IOP) =25 mm Hg in the study eye 8. History of glaucoma filtration surgery in the past Other Exclusion Criteria Apply

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of the study is to determine if treatment with high-dose aflibercept (HD) at intervals of 12 or 16 weeks provides noninferior best-corrected visual acuity (BCVA) compared to 2 mg aflibercept dosed every 8 weeks;Secondary Objective: - To determine the effect of HD vs 2 mg aflibercept on anatomic and other visual measures of response - To evaluate the safety, immunogenicity and pharmacokinetics (PK) of HD;Primary end point(s): Change from baseline in best corrected visual acuity (BCVA) at week 48;Timepoint(s) of evaluation of this end point: Week 48

Secondary

MeasureTime frame
Secondary end point(s): 1. Proportion of patients with a =2 step improvement in Diabetic Retinopathy Severity Scale (DRSS) at week 48 2. Change from baseline in BCVA at week 60 (region-specific analysis) 3. Proportion of patients gaining =15 letters at week 48 4. Proportion of patients with BCVA =69 letters at week 48 5. Proportion of patients without fluid at foveal center at week 48 6. Change from baseline in central retinal thickness (CRT) at week 48 7. Proportion of patients without leakage on fluorescein angiography (FA) at week 48 8. Change from baseline in National Eye Institute Visual Function Questionnaire (NEI-VFQ) total score at week 48 9. Systemic pharmacokinetics of aflibercept as assessed from baseline through week 48 10. Assessment of immunogenicity to aflibercept through end of study (EOS) week (week 96) 11. Safety evaluation by assessment of adverse events (AEs) and serious adverse events (SAEs) through weeks 48, 60, and 96;Timepoint(s) of evaluation of this end point: 1, 3-9: Week 48 2: Week 60 10: Week 96 11: Weeks 48, 60, 96

Countries

Canada, China, Czechia, Czech Republic, Germany, Hungary, Japan, Russian Federation, United Kingdom, United States

Contacts

Public ContactClinical Trial Management

Regeneron Pharmaceuticals, Inc.

clinicaltrials@regeneron.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026