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A Study to Learn How Well a Higher Amount of Aflibercept Given as an Injection Into the Eye Works and How Safe it is in People With Reduced Vision Due to Swelling in the Macula, Central Part of the Retina Caused by a Blocked Vein in the Retina (Macula Edema Secondary to Retinal Vein Occlusion)

Randomized, Double-Masked, Active-Controlled, Phase 3 Study of the Efficacy and Safety of Aflibercept 8 mg in Macular Edema Secondary to Retinal Vein Occlusion

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05850520
Acronym
QUASAR
Enrollment
892
Registered
2023-05-09
Start date
2023-05-15
Completion date
2025-05-27
Last updated
2025-12-18

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

Conditions

Macular Edema Secondary to Retinal Vein Occlusion

Brief summary

Researchers are looking for a better way to treat people who have macular edema secondary to retinal vein occlusion (RVO). In people with RVO, a blood vessel that carries blood away from the retina (vein) becomes blocked. The retina is the very back part of the eye. The blocked vein causes fluid and blood to leak into the retina and thereby causes a swelling of the macula (the center of the retina responsible for fine vision). This swelling is called macular edema. When a vein in the retina is blocked, the levels of a protein called vascular endothelial growth factor (VEGF) rises. VEGF helps the growth of new blood vessels. This can lead to macular edema and may cause the vision to become blurry. The study treatment intravitreal (IVT) aflibercept is given as an injection into the eye. It works by blocking VEGF and this can help repair vision problems related to RVO. IVT aflibercept is already available and is prescribed by doctors as the standard of care treatment for macula edema secondary to RVO. Standard of care is a treatment that medical experts consider most appropriate for a disease. Standard of care is given every 4 weeks in people with macula edema secondary to RVO. While repeated injections of aflibercept may prevent worsening of vision, it may place a burden on the patient. However, a higher amount (8 mg) compared to the standard of care (2 mg) of IVT aflibercept is being tested in studies. This higher amount could be given less often. The amount of IVT aflibercept given is measured in milligrams, also known as mg. The main purpose of this study is to learn how well a higher amount of the study treatment aflibercept works in people with macular edema secondary to RVO. To answer this, researchers will measure changes in vision called best corrected visual acuity (BCVA) in the study participants between study start and after 36 weeks of treatment. Changes will then be compared between those participants who received the higher amount of IVT aflibercept and those that received standard of care. To learn how safe the study treatment is in the participants, the researchers will count the number of participants from study start and up to 64 weeks later that have: * adverse events * serious adverse events Adverse events are any medical problems that the participants have during a study. Doctors keep track of all adverse events that happen in studies, even if they do not think they might be related to the study treatments. An adverse event is considered serious when it leads to death, puts the participants' lives at risk, requires hospitalization, causes disability, causes a baby being born with medical problems or is otherwise medically important. Dependent on the treatment group, the participants will either receive the higher amount of aflibercept or standard of care as an intravitreal injection for up to 60 weeks. The study will consist of a test (screening) phase, a treatment phase and an end of study phase. Each participant will be in the study for up to 64 weeks. One visit to the study site is planned during the screening phase, followed by visits approximately every 4 weeks (16 in total) during treatment and one visit at the end of the study. During the study, the study doctors and their team will: * check patients' eye health using various eye examination techniques * measure patients' eye vision (BCVA) * take blood and urine samples * do physical examinations * check vital signs * examine heart health using electrocardiogram (ECG) * do pregnancy tests in women of childbearing age In addition, participants will be asked to fill a questionnaire on vision-related quality of life.

Interventions

DRUGAflibercept, VEGF Trap-Eye(Eylea, BAY86-5321)_higher dose

Intravitreally (IVT) injection.

DRUGAflibercept, VEGF Trap-Eye(Eylea, BAY86-5321)_2 mg

Intravitreally (IVT) injection.

DRUGSham

Sham procedure will be given on visits when an active injection is not planned.

DIAGNOSTIC_TESTFluorescein

Fluorescein 100 mg/mL solution for injection is a dye that makes the retinal vessels visible during FA examinations, and as such, it will be used as an auxiliary medicinal product (AxMP) in this periodic ophthalmic examination. This medicine is for diagnostic use only. It is not used to treat any condition.

Sponsors

Regeneron Pharmaceuticals
CollaboratorINDUSTRY
Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult ≥18 years of age (or country's legal age of adulthood if the legal age is \>18 years) at the time of signing the informed consent. * Treatment-naïve macular edema involving the foveal center secondary to RVO (BRVO, HRVO, or CRVO) diagnosed within 16 weeks (112 days) before the screening visit in the study eye. * Early Treatment Diabetic Retinopathy Study BCVA letter score of 73 to 24 (20/40 to 20/320) at screening and baseline visits in the study eye. Decrease in BCVA determined to be primarily the result of RVO in the study eye. * Mean CST ≥300 μm on optical coherence tomography (OCT) if excluding Bruch's membrane (e.g., Cirrus or Topcon) or ≥320 μm if including Bruch's membrane (e.g., Heidelberg Spectralis), confirmed by the reading center at the screening visit and by the site at baseline visit in the study eye. * Capable of giving signed informed consent form (ICF) by study participant or legally acceptable representative, which includes compliance with the requirements and restrictions listed in the ICF and in this protocol. * US participants will be required to have a Health Insurance Portability and Accountability Act (HIPAA) authorization; in other countries, as applicable according to national laws. * Women of childbearing potential (WOCBP) or men who are sexually active with partners of childbearing potential must agree to use highly effective contraception prior to the initial dose/start of the first treatment, during the study, and for at least 4 months after the last administration of study intervention. Contraceptive use by men or women should be consistent with local regulations regarding the methods of contraception for participation in clinical studies and fulfil the conditions set on Section 10.4.2.

Exclusion criteria

* Concurrent disease that causes substantial decrease of BCVA, is expected to limit BCVA recovery or is likely to require medical or surgical intervention during the study in the study eye. * Presence or history of the following ocular conditions: 1. Advanced age-related macular degeneration (neovascular AMD or geographic atrophy) in the study eye. 2. Diabetic macular edema or diabetic retinopathy, defined in diabetic participants as diabetic retinopathy lesions outside the area of the vein occlusion in the study eye and anywhere in the retina in the fellow eye. 3. Anterior segment neovascularization, vitreous hemorrhage, retinal detachment in the study eye. 4. Vitreomacular traction, epiretinal membrane or structural damage to the macula that is considered by the Investigator to significantly affect central vision or preclude improvement in vision in the study eye. 5. Macular hole of stage 2 and above in the study eye. 6. Myopia of a spherical equivalent of at least 8 diopters prior to any refractive or cataract surgery in the study eye. 7. Corneal transplant or corneal dystrophy in the study eye. 8. Idiopathic or autoimmune uveitis in the study or in the fellow eye. * Presence of the following ocular conditions at screening or baseline visit: 1. Significant media opacities, including cataract, that interfere with BCVA, or imaging assessments (e.g., fundus photography \[FP\], OCT) in the study eye. 2. Aphakia, or pseudophakia with absence of posterior capsule (unless it occurred as a result of a yttrium-aluminum-garnet \[YAG\] posterior capsulotomy performed more than 30 days before the screening visit), in the study eye. 3. Uncontrolled glaucoma (defined as IOP \>25 mmHg despite treatment with anti-glaucoma medication); or history or likely future need of glaucoma surgery in the study eye. 4. Intraocular inflammation/infection (including trace, or above, cells in the anterior chamber and/or vitreous) within 12 weeks (84 days) of the screening visit in the study or in the fellow eye. 5. Extraocular or periocular infection or inflammation (including infectious blepharitis, keratitis, scleritis, or conjunctivitis) in the study or in the fellow eye. * Uncontrolled blood pressure (defined as systolic \>160 mmHg or diastolic \>95 mmHg) at the screening visit or baseline visit. * Uncontrolled diabetes mellitus, defined by hemoglobin A1c (HbA1c) \>12% at the screening visit. * History of cerebrovascular accident or myocardial infarction within 24 weeks (168 days) before the screening visit or between screening and baseline visits. * Renal failure requiring dialysis, or renal transplant at screening or potentially during the study. * Any prior or concomitant ocular or systemic treatment (with an investigational or approved, anti-VEGF or other agent) or surgery for RVO in the study eye. * Previous administration of systemic anti-angiogenic medications for any condition. * Prior treatment of the study eye with any of the following drugs (any route of ophthalmic administration) or procedures: 1. Anti-angiogenic drugs at any time including investigational therapy (e.g., with anti-angiopoietin/anti-VEGF bispecific monoclonal antibodies). 2. Previous use topical steroids within 4 weeks (28 days) from the screening visit, or intraocular or periocular steroids within 16 weeks (112 days) from the screening visit, or steroid implants at any time. 3. Previous treatment with intraocular or periocular implant, gene therapy, or cell therapy at any time. 4. Treatment with ocriplasmin at any time. 5. Vitreoretinal surgery (including scleral buckling) at any time. 6. Any intraocular surgery, including cataract surgery, within 12 weeks (84 days) before the screening visit. 7. Previous treatment with retinal laser photocoagulation. * Prior treatment of the fellow eye with any of the following: a. Gene therapy, or cell therapy in the fellow eye at any time. * Participation in other clinical studies requiring administration of investigational treatments (other than vitamins and minerals) at the time of screening visit, or within 30 days or 5 half-lives of administration of the previous study intervention, whichever is longer.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in BCVA Measured by the ETDRS Letter Score at Week 36At Week 36BCVA: Best-Corrected Visual Acuity; ETDRS: Early Treatment Diabetic Retinopathy Study; ETDRS letter score (ranging from 0 to 100 letters). A higher letter score means a better outcome (better visual acuity)

Secondary

MeasureTime frameDescription
Participants Gaining at Least 15 Letters in BCVA From Baseline at Week 36From baseline at Week 36
Participants Achieving an ETDRS Letter Score of at Least 69 (Approximate 20/40 Snellen Equivalent) at Week 36At Week 36ETDRS letter score (ranging from 0 to 100 letters). A higher letter score means a better outcome (better visual acuity)
Participants Having no Intraretinal Fluid (IRF) and no Sub-retinal Fluid (SRF) in the Center Subfield at Week 36At Week 36Number of participants with no retinal fluid (no IRF and no SRF) in the central subfield at Week 36
Change From Baseline in Central Sub-field Thickness (CST) at Week 36From baseline to Week 36
Number of Active Injections From Baseline to Week 36From baseline to Week 36Active injections refer to the number of injections that were actually administered, as opposed to the number of planned injections.
Participants Dosed Only Q8 Through Week 36 in the 8 mg Q8 GroupThrough Week 36Number of participants in the aflibercept 8q8/3 and the aflibercept 8q8/5 groups who were able to maintain every 8 weeks (Q8) dosing through Week 36. Only participants who did not discontinue study intervention prior to Week 36, and were therefore considered completers for Week 36, were included in the analysis of this endpoint.
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Through Week 36TEAEs were defined as AEs that occurred in the time frame from first injection (active or sham) to the last injection (active or sham) plus 30 days. Ocular TEAEs in study eye and non-ocular TEAEs are included (ocular TEAEs in fellow eye are excluded)
Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36From baseline through Week 36Total aflibercept is the sum of free and adjusted bound aflibercept.
Change From Baseline in NEI VFQ 25 Total Score at Week 36From baseline to Week 36NEI-VFQ-25: National Eye Institute Visual Functioning Questionnaire-25; The NEI VFQ-25 total score ranges from 0 to 100. A higher score means a better outcome (better patient-reported visual function).

Countries

Australia, Austria, Bulgaria, China, Czechia, Estonia, France, Georgia, Germany, Hungary, Israel, Italy, Japan, Latvia, Lithuania, Malaysia, Poland, Portugal, Serbia, Slovakia, South Korea, Spain, Switzerland, Thailand, Turkey (Türkiye), United Kingdom, United States

Participant flow

Recruitment details

The study was conducted at 237 centers in Europe, America, Japan, and Asia-Pacific between 15-May-2023 (first participant first visit) and 07-Nov-2024 (primary completion date).

Pre-assignment details

In total 1282 participants were screened, of whom 388 participants were screen failures. Overall, 892 participants were randomized and treated. Of these, 838 participants completed the treatment phase through Week 36 (primary completion date).

Participants by arm

ArmCount
Aflibercept 2q4
Participants received aflibercept 2 mg administered every 4 weeks.
301
Aflibercept 8q8/3
Participants received aflibercept 8 mg administered every 8 weeks, after 3 initial injections at 4-week intervals.
293
Aflibercept 8q8/5
Participants received aflibercept 8 mg administered every 8 weeks, after 5 initial injections at 4-week intervals.
298
Total892

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event201
Overall StudyDeath223
Overall StudyLost to Follow-up222
Overall StudyNo information was available on whether follow-up was completed or not022
Overall StudyPhysician Decision010
Overall StudyProtocol deviation001
Overall StudyWithdrawal by Subject8816

Baseline characteristics

CharacteristicAflibercept 2q4Aflibercept 8q8/3Aflibercept 8q8/5Total
Age, Continuous65.9 Years
STANDARD_DEVIATION 11.7
65.8 Years
STANDARD_DEVIATION 11.5
65.8 Years
STANDARD_DEVIATION 11.5
65.9 Years
STANDARD_DEVIATION 11.6
Ethnicity (NIH/OMB)
Hispanic or Latino
22 Participants25 Participants14 Participants61 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
267 Participants254 Participants273 Participants794 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
12 Participants14 Participants11 Participants37 Participants
Race/Ethnicity, Customized
American Indian or Alaskan Native
0 Participants0 Participants2 Participants2 Participants
Race/Ethnicity, Customized
Asian
101 Participants91 Participants97 Participants289 Participants
Race/Ethnicity, Customized
Black or African American
8 Participants7 Participants9 Participants24 Participants
Race/Ethnicity, Customized
Multiple
1 Participants0 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Native Hawaiian or other Pacific Islander
0 Participants0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Not reported
13 Participants22 Participants11 Participants46 Participants
Race/Ethnicity, Customized
White
178 Participants173 Participants177 Participants528 Participants
Sex: Female, Male
Female
144 Participants136 Participants146 Participants426 Participants
Sex: Female, Male
Male
157 Participants157 Participants152 Participants466 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
2 / 3012 / 2933 / 2985 / 591
other
Total, other adverse events
188 / 301184 / 293176 / 298360 / 591
serious
Total, serious adverse events
32 / 30123 / 29326 / 29849 / 591

Outcome results

Primary

Change From Baseline in BCVA Measured by the ETDRS Letter Score at Week 36

BCVA: Best-Corrected Visual Acuity; ETDRS: Early Treatment Diabetic Retinopathy Study; ETDRS letter score (ranging from 0 to 100 letters). A higher letter score means a better outcome (better visual acuity)

Time frame: At Week 36

Population: Full analysis set (FAS): All participants randomly assigned to study intervention who were exposed to study intervention (active or sham injection) at least once.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Aflibercept 2q4Change From Baseline in BCVA Measured by the ETDRS Letter Score at Week 3617.5 LettersStandard Error 0.7
Aflibercept 8q8/3Change From Baseline in BCVA Measured by the ETDRS Letter Score at Week 3617.4 LettersStandard Error 0.7
Aflibercept 8q8/5Change From Baseline in BCVA Measured by the ETDRS Letter Score at Week 3618.3 LettersStandard Error 0.6
Comparison: 8q8/3 -2q4p-value: <0.000195% CI: [-2, 1.9]Mixed Models Analysis
Comparison: 8q8/5 -2q4p-value: <0.000195% CI: [-1.1, 2.7]Mixed Models Analysis
Secondary

Change From Baseline in Central Sub-field Thickness (CST) at Week 36

Time frame: From baseline to Week 36

Population: Full analysis set (FAS): All participants randomly assigned to study intervention who were exposed to study intervention (active or sham injection) at least once.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Aflibercept 2q4Change From Baseline in Central Sub-field Thickness (CST) at Week 36-370.8 μmStandard Error 3.9
Aflibercept 8q8/3Change From Baseline in Central Sub-field Thickness (CST) at Week 36-370.9 μmStandard Error 3.1
Aflibercept 8q8/5Change From Baseline in Central Sub-field Thickness (CST) at Week 36-369.5 μmStandard Error 2.3
Comparison: 8q8/3 - 2q4p-value: 0.980495% CI: [-10, 9.8]Mixed Models Analysis
Comparison: 8q8/5 - 2q4p-value: 0.786395% CI: [-7.7, 10.2]Mixed Models Analysis
Secondary

Change From Baseline in NEI VFQ 25 Total Score at Week 36

NEI-VFQ-25: National Eye Institute Visual Functioning Questionnaire-25; The NEI VFQ-25 total score ranges from 0 to 100. A higher score means a better outcome (better patient-reported visual function).

Time frame: From baseline to Week 36

Population: Full analysis set (FAS): All participants randomly assigned to study intervention who were exposed to study intervention (active or sham injection) at least once.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Aflibercept 2q4Change From Baseline in NEI VFQ 25 Total Score at Week 366.27 Scores on a scaleStandard Error 0.67
Aflibercept 8q8/3Change From Baseline in NEI VFQ 25 Total Score at Week 365.91 Scores on a scaleStandard Error 0.61
Aflibercept 8q8/5Change From Baseline in NEI VFQ 25 Total Score at Week 366.92 Scores on a scaleStandard Error 0.63
Comparison: 8q8/3 - 2q4p-value: 0.686995% CI: [-2.1, 1.4]ANCOVA
Comparison: 8q8/5 - 2q495% CI: [-1.2, 2.45]ANCOVA
Secondary

Number of Active Injections From Baseline to Week 36

Active injections refer to the number of injections that were actually administered, as opposed to the number of planned injections.

Time frame: From baseline to Week 36

Population: Full analysis set (FAS): All participants randomly assigned to study intervention who were exposed to study intervention (active or sham injection) at least once.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Aflibercept 2q4Number of Active Injections From Baseline to Week 368.8 Number of active injectionsStandard Error 0
Aflibercept 8q8/3Number of Active Injections From Baseline to Week 366.1 Number of active injectionsStandard Error 0
Aflibercept 8q8/5Number of Active Injections From Baseline to Week 366.9 Number of active injectionsStandard Error 0
Comparison: 8q8/3 -2q4p-value: <0.000195% CI: [-2.8, -2.6]ANCOVA
Comparison: 8q8/5 -2q4p-value: <0.000195% CI: [-1.9, -1.7]ANCOVA
Secondary

Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36

TEAEs were defined as AEs that occurred in the time frame from first injection (active or sham) to the last injection (active or sham) plus 30 days. Ocular TEAEs in study eye and non-ocular TEAEs are included (ocular TEAEs in fellow eye are excluded)

Time frame: Through Week 36

Population: Safety analysis set (SAF): All participants randomly assigned to study intervention who were exposed to study intervention (active or sham injection) at least once. Analysis of the SAF was performed according to the treatment the participant actually received (as treated).

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Aflibercept 2q4Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TEAEs188 Participants
Aflibercept 2q4Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TESAEs32 Participants
Aflibercept 8q8/3Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TESAEs23 Participants
Aflibercept 8q8/3Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TEAEs184 Participants
Aflibercept 8q8/5Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TEAEs176 Participants
Aflibercept 8q8/5Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TESAEs26 Participants
All Aflibercept HDNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TEAEs360 Participants
All Aflibercept HDNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs) Through Weeks 36Number of participants with TESAEs49 Participants
Secondary

Participants Achieving an ETDRS Letter Score of at Least 69 (Approximate 20/40 Snellen Equivalent) at Week 36

ETDRS letter score (ranging from 0 to 100 letters). A higher letter score means a better outcome (better visual acuity)

Time frame: At Week 36

Population: Full analysis set (FAS): All participants randomly assigned and exposed to study intervention (active or sham injection) at least once.~The Overall Number of Participants Analyzed differs from the Overall Number of Baseline Participants because only observed cases were used, excluding data after an intercurrent event (ICE) (e.g., stopping intervention or using prohibited medication before Week 36). Missing cases were not included.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Aflibercept 2q4Participants Achieving an ETDRS Letter Score of at Least 69 (Approximate 20/40 Snellen Equivalent) at Week 36179 Participants
Aflibercept 8q8/3Participants Achieving an ETDRS Letter Score of at Least 69 (Approximate 20/40 Snellen Equivalent) at Week 36189 Participants
Aflibercept 8q8/5Participants Achieving an ETDRS Letter Score of at Least 69 (Approximate 20/40 Snellen Equivalent) at Week 36189 Participants
Secondary

Participants Dosed Only Q8 Through Week 36 in the 8 mg Q8 Group

Number of participants in the aflibercept 8q8/3 and the aflibercept 8q8/5 groups who were able to maintain every 8 weeks (Q8) dosing through Week 36. Only participants who did not discontinue study intervention prior to Week 36, and were therefore considered completers for Week 36, were included in the analysis of this endpoint.

Time frame: Through Week 36

Population: SAF: All participants randomly assigned to study intervention who were exposed to study intervention (active or sham injection) at least once. Analysis of the SAF was performed according to the treatment the participant actually received (as treated).~The Overall Number of Participants Analyzed is not consistent with numbers provided in the Overall Number of Baseline Participants because only participants considered as completers for Week 36 were included in the analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Aflibercept 2q4Participants Dosed Only Q8 Through Week 36 in the 8 mg Q8 Group246 Participants
Aflibercept 8q8/3Participants Dosed Only Q8 Through Week 36 in the 8 mg Q8 Group255 Participants
Aflibercept 8q8/5Participants Dosed Only Q8 Through Week 36 in the 8 mg Q8 Group501 Participants
Secondary

Participants Gaining at Least 15 Letters in BCVA From Baseline at Week 36

Time frame: From baseline at Week 36

Population: Full analysis set (FAS): All participants randomly assigned and exposed to study intervention (active or sham injection) at least once.~The Overall Number of Participants Analyzed differs from the Overall Number of Baseline Participants because only observed cases were used, excluding data after an intercurrent event (ICE) (e.g., stopping intervention or using prohibited medication before Week 36). Missing cases were not included.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Aflibercept 2q4Participants Gaining at Least 15 Letters in BCVA From Baseline at Week 36158 Participants
Aflibercept 8q8/3Participants Gaining at Least 15 Letters in BCVA From Baseline at Week 36153 Participants
Aflibercept 8q8/5Participants Gaining at Least 15 Letters in BCVA From Baseline at Week 36161 Participants
Secondary

Participants Having no Intraretinal Fluid (IRF) and no Sub-retinal Fluid (SRF) in the Center Subfield at Week 36

Number of participants with no retinal fluid (no IRF and no SRF) in the central subfield at Week 36

Time frame: At Week 36

Population: Full analysis set (FAS): All participants randomly assigned and exposed to study intervention (active or sham injection) at least once.~The Overall Number of Participants Analyzed differs from the Overall Number of Baseline Participants because only observed cases were used, excluding data after an intercurrent event (ICE) (e.g., stopping intervention or using prohibited medication before Week 36). Missing cases were not included.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Aflibercept 2q4Participants Having no Intraretinal Fluid (IRF) and no Sub-retinal Fluid (SRF) in the Center Subfield at Week 36221 Participants
Aflibercept 8q8/3Participants Having no Intraretinal Fluid (IRF) and no Sub-retinal Fluid (SRF) in the Center Subfield at Week 36211 Participants
Aflibercept 8q8/5Participants Having no Intraretinal Fluid (IRF) and no Sub-retinal Fluid (SRF) in the Center Subfield at Week 36202 Participants
Secondary

Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36

Total aflibercept is the sum of free and adjusted bound aflibercept.

Time frame: From baseline through Week 36

Population: Pharmacokinetic analysis set (PKS): All participants randomly assigned to study intervention with at least one non-missing PK result after the first dose of study intervention.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Aflibercept 2q4Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 491.6 ng/mLGeometric Coefficient of Variation 55.82
Aflibercept 2q4Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 24165.6 ng/mLGeometric Coefficient of Variation 58.72
Aflibercept 2q4Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 16241.6 ng/mLGeometric Coefficient of Variation 48.4
Aflibercept 2q4Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 36167.8 ng/mLGeometric Coefficient of Variation 58.81
Aflibercept 2q4Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 12151.5 ng/mLGeometric Coefficient of Variation 56.99
Aflibercept 8q8/3Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 36366.0 ng/mLGeometric Coefficient of Variation 57.87
Aflibercept 8q8/3Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 4281.8 ng/mLGeometric Coefficient of Variation 52.16
Aflibercept 8q8/3Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 12451.7 ng/mLGeometric Coefficient of Variation 58.83
Aflibercept 8q8/3Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 16470.5 ng/mLGeometric Coefficient of Variation 58.24
Aflibercept 8q8/3Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 24179.8 ng/mLGeometric Coefficient of Variation 73.07
Aflibercept 8q8/5Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 12452.6 ng/mLGeometric Coefficient of Variation 57.04
Aflibercept 8q8/5Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 36313.8 ng/mLGeometric Coefficient of Variation 97.3
Aflibercept 8q8/5Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 24202.5 ng/mLGeometric Coefficient of Variation 80.94
Aflibercept 8q8/5Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 4270.7 ng/mLGeometric Coefficient of Variation 63.78
Aflibercept 8q8/5Systemic Exposure to Aflibercept as Assessed by Plasma Concentrations of Free, Adjusted Bound and Total Aflibercept From Baseline Through Weeks 36Week 16729.0 ng/mLGeometric Coefficient of Variation 43.82

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026