Skip to content

Extension Study to Evaluate the Long-term Outcomes of Subjects in the CLS-AX CLS1002-101 Study

Extension Study to Evaluate the Long-term Outcomes of Subjects Following CLS-AX Administration for Age-related Macular Degeneration in the CLS-AX CLS1002-101 Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05131646
Enrollment
15
Registered
2021-11-23
Start date
2021-10-08
Completion date
2023-01-05
Last updated
2024-03-04

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

Conditions

Neovascular Age-related Macular Degeneration

Keywords

AMD, Wet-AMD, suprachoroidal, tyrosine kinase inhibitor, nAMD, SCS

Brief summary

This is an open-label, non-interventional extension study of up to 12 weeks in duration in subjects completing Cohorts 2, 3, and 4 of the Parent study, CLS1002-101.

Detailed description

This is an open-label, non-interventional extension study of up to 12 weeks in duration in subjects completing Cohorts 2. 3 and 4 of the Parent study, CLS1002-101. The Parent study is a 12-week, Phase 1/2a, multicenter study designed to assess the safety and tolerability of a single dose of CLS-AX administered suprachoroidally in subjects with neovascular age-related macular degeneration (nAMD) who show stable visual acuity following 3 or more injections with an intravitreal (IVT) anti-VEGF therapy in the preceding 5 months. Summary analyses will include 12-weeks data from the Parent study, CLS1002-101, and 12-weeks data from this extension study, CLS1002-102, for a total of 24 weeks follow-up, for all participants enrolled into the extension study.

Interventions

DRUGCLS-AX

injectable suspension of small molecule tyrosine kinase inhibitor (TKI) administered in the Parent study CLS1002-101

Sponsors

Clearside Biomedical, Inc.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* Enrolled in and completed the Parent study, CLS1002-101, as part of Cohort 2 or Cohort 3 or Cohort 4.

Exclusion criteria

* Received prohibited medication in the Parent study, CLS1002-101. * Enrolled in the Parent study CLS1002-101 as part of Cohort 1. * Females of childbearing potential who are pregnant and or lactating.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-emergent Adverse Events (TEAEs)Day 1 to Week 24The number of participants with treatment-emergent adverse events (TEAEs) reported between the administration of CLS-AX and study exit.
Number of Participants With Serious Adverse Events (SAEs)Day 1 to Week 24The number of participants with serious adverse events (SAEs) reported between the administration of CLS-AX and study exit.

Secondary

MeasureTime frameDescription
Number of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 24Number of participants receiving additional intravitreal aflibercept injections during the course of the study for nAMD.
Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeeks 4, 8, 12, 16, 20 and 24BCVA measured on the Early Treatment Diabetic Retinopathy Study (ETDRS) chart at a starting test distance of 4 meters. The BCVA letter score ranges from 0 to 100 (best score attainable), and a gain in BCVA letter score from baseline indicates an improvement in visual acuity.
Mean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeeks 4, 8, 12, 16, 20 and 24Central subfield thickness (CST) is a diagnostic measurement used in identifying the presence of edema in the circular area 1 mm in diameter centered around the fovea. CST was measured using spectral domain optical coherence tomography (SD-OCT). A central reading center graded the SD-OCT digital images. A negative change from baseline value represents a reduction in macular edema. Only images that were gradable by the central reading center were included in the analysis.

Other

MeasureTime frameDescription
Number of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 24Number of participants qualifying to receive additional intravitreal aflibercept injections during the course of the study. Criteria included 1) loss of 10 or more letters in BCVA compared to the best prior study-assessed BCVA in the study eye that was attributed to intra- or sub-retinal fluid, 2) increase in central subfield thickness \>75 microns from Baseline in the study eye, or 3) presence of vision-threatening hemorrhage due to AMD in the study eye.
Mean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Weeks 4, 8, 12, 16, 20 and 24Intraocular pressure (IOP) is a diagnostic measurement of the fluid pressure, measured in millimeters of mercury, inside the eye. IOP was measured using Goldmann applanation tonometry or by use of a Tonopen tonometer. Normal eye pressure is usually considered to be between 10 and 20 mmHg (AAO.org). Untreated elevated eye pressure is a risk factor for glaucoma.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 2 (Low-mid Dose) Extension
Subjects who were administered by suprachoroidal injection 0.10 mg CLS-AX in cohort 2 of the parent study, CLS1002-101, will be followed for an additional 12 weeks following exit from the Parent study. No intervention will be administered in this extension study. CLS-AX: injectable suspension of small molecule tyrosine kinase inhibitor (TKI) administered in the Parent study CLS1002-101
3
Cohort 3 (High-mid Dose) Extension
Subjects who were administered by suprachoroidal injection 0.50 mg CLS-AX in cohort 3 of the parent study, CLS1002-101, will be followed for an additional 12 weeks following exit from the Parent study. No intervention will be administered in this extension study. CLS-AX: injectable suspension of small molecule tyrosine kinase inhibitor (TKI) administered in the Parent study CLS1002-101
7
Cohort 4 (High Dose) Extension
Subjects who were administered by suprachoroidal injection 1.0 mg CLS-AX in cohort 4 of the parent study, CLS1002-101, will be followed for an additional 12 weeks following exit from the Parent study. No intervention will be administered in this extension study. CLS-AX: injectable suspension of small molecule tyrosine kinase inhibitor (TKI) administered in the Parent study CLS1002-101
5
Total15

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyWithdrawal by Subject100

Baseline characteristics

CharacteristicCohort 2 (Low-mid Dose) ExtensionCohort 3 (High-mid Dose) ExtensionCohort 4 (High Dose) ExtensionTotal
Age, Continuous78.7 years
STANDARD_DEVIATION 9.02
87.9 years
STANDARD_DEVIATION 4.98
79.6 years
STANDARD_DEVIATION 3.97
83.3 years
STANDARD_DEVIATION 6.82
Best Corrected Visual Acuity in the Study Eye at Baseline61.0 letters
STANDARD_DEVIATION 8.19
59.0 letters
STANDARD_DEVIATION 14.71
71.2 letters
STANDARD_DEVIATION 2.17
63.5 letters
STANDARD_DEVIATION 11.67
Central Subfield Thickness in the Study Eye at Baseline214.0 microns
STANDARD_DEVIATION 13.53
201.9 microns
STANDARD_DEVIATION 24.38
214.8 microns
STANDARD_DEVIATION 13.74
208.6 microns
STANDARD_DEVIATION 19.43
Duration of nAMD Diagnosis in the Study Eye56.63 months
STANDARD_DEVIATION 23.759
67.29 months
STANDARD_DEVIATION 44.329
36.42 months
STANDARD_DEVIATION 38.955
54.87 months
STANDARD_DEVIATION 39.442
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants7 Participants5 Participants15 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Pre Injection Intraocular Pressure in the Study Eye at Baseline14.3 mmHg
STANDARD_DEVIATION 1.53
13.9 mmHg
STANDARD_DEVIATION 2.34
13.8 mmHg
STANDARD_DEVIATION 3.56
13.9 mmHg
STANDARD_DEVIATION 2.52
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
3 Participants7 Participants5 Participants15 Participants
Region of Enrollment
United States
3 participants7 participants5 participants15 participants
Sex: Female, Male
Female
2 Participants5 Participants4 Participants11 Participants
Sex: Female, Male
Male
1 Participants2 Participants1 Participants4 Participants
Total Number of Prior nAMD Treatments in the Study Eye
0-2 Injections
0 Participants0 Participants0 Participants0 Participants
Total Number of Prior nAMD Treatments in the Study Eye
13-18 Injections
0 Participants1 Participants0 Participants1 Participants
Total Number of Prior nAMD Treatments in the Study Eye
>18 Injections
2 Participants4 Participants3 Participants9 Participants
Total Number of Prior nAMD Treatments in the Study Eye
3-6 Injections
0 Participants2 Participants1 Participants3 Participants
Total Number of Prior nAMD Treatments in the Study Eye
7-12 Injections
1 Participants0 Participants1 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 70 / 5
other
Total, other adverse events
3 / 32 / 71 / 5
serious
Total, serious adverse events
0 / 30 / 70 / 5

Outcome results

Primary

Number of Participants With Serious Adverse Events (SAEs)

The number of participants with serious adverse events (SAEs) reported between the administration of CLS-AX and study exit.

Time frame: Day 1 to Week 24

Population: Defined as all enrolled participants who were administered CLS-AX in the Parent study, who have provided informed consent for participating in the Extension study, and from whom at least one safety measurement was obtained after the participant provided informed consent.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants With Serious Adverse Events (SAEs)0 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants With Serious Adverse Events (SAEs)0 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants With Serious Adverse Events (SAEs)0 Participants
Primary

Number of Participants With Treatment-emergent Adverse Events (TEAEs)

The number of participants with treatment-emergent adverse events (TEAEs) reported between the administration of CLS-AX and study exit.

Time frame: Day 1 to Week 24

Population: Defined as all enrolled participants who were administered CLS-AX in the Parent study, who have provided informed consent for participating in the Extension study, and from whom at least one safety measurement was obtained after the participant provided informed consent.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants With Treatment-emergent Adverse Events (TEAEs)3 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants With Treatment-emergent Adverse Events (TEAEs)2 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants With Treatment-emergent Adverse Events (TEAEs)1 Participants
Secondary

Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study Eye

BCVA measured on the Early Treatment Diabetic Retinopathy Study (ETDRS) chart at a starting test distance of 4 meters. The BCVA letter score ranges from 0 to 100 (best score attainable), and a gain in BCVA letter score from baseline indicates an improvement in visual acuity.

Time frame: Weeks 4, 8, 12, 16, 20 and 24

Population: Defined as all enrolled participants who were administered CLS-AX in the Parent study, who have provided informed consent for participating in the Extension study, and from whom at least one safety measurement was obtained after the participant provided informed consent.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 40.7 lettersStandard Deviation 2.08
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 8-2.3 lettersStandard Deviation 2.08
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 12-5.0 lettersStandard Deviation 10.82
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 16-2.0 lettersStandard Deviation 0
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 200.0 lettersStandard Deviation 1.41
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 24-35.0 lettersStandard Deviation 46.67
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 24-1.9 lettersStandard Deviation 5.05
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 41.0 lettersStandard Deviation 2.19
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 161.9 lettersStandard Deviation 3.02
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 200.0 lettersStandard Deviation 2.65
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 82.5 lettersStandard Deviation 3.08
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 12-0.9 lettersStandard Deviation 2.85
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 81.8 lettersStandard Deviation 2.86
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 120.0 lettersStandard Deviation 3.16
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 240.4 lettersStandard Deviation 6.62
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 161.0 lettersStandard Deviation 4.85
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 40.8 lettersStandard Deviation 2.49
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Best Corrected Visual Acuity (BCVA) Letter Score in the Study EyeWeek 201.0 lettersStandard Deviation 6.2
Secondary

Mean Change From Baseline in Central Subfield Thickness (CST) in the Study Eye

Central subfield thickness (CST) is a diagnostic measurement used in identifying the presence of edema in the circular area 1 mm in diameter centered around the fovea. CST was measured using spectral domain optical coherence tomography (SD-OCT). A central reading center graded the SD-OCT digital images. A negative change from baseline value represents a reduction in macular edema. Only images that were gradable by the central reading center were included in the analysis.

Time frame: Weeks 4, 8, 12, 16, 20 and 24

Population: Defined as all enrolled participants who were administered CLS-AX in the Parent study, who have provided informed consent for participating in the Extension study, and from whom at least one safety measurement was obtained after the participant provided informed consent.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 414.7 micronsStandard Deviation 14.47
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 85.7 micronsStandard Deviation 30.37
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 1253.3 micronsStandard Deviation 83.34
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 1618.0 micronsStandard Deviation 19.8
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 2067.0 microns
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 246.0 microns
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 2420.4 micronsStandard Deviation 33.1
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 423.5 micronsStandard Deviation 23.82
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 165.1 micronsStandard Deviation 28.26
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 2020.0 micronsStandard Deviation 21.84
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 828.2 micronsStandard Deviation 21.48
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 1236.6 micronsStandard Deviation 34.02
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 813.6 micronsStandard Deviation 18.08
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 1219.4 micronsStandard Deviation 16.1
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 2426.4 micronsStandard Deviation 65.26
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 1613.4 micronsStandard Deviation 15.49
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 420.2 micronsStandard Deviation 26.64
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Central Subfield Thickness (CST) in the Study EyeWeek 2026.2 micronsStandard Deviation 49.55
Secondary

Number of Participants Receiving Additional Intravitreal (IVT) Aflibercept Injections

Number of participants receiving additional intravitreal aflibercept injections during the course of the study for nAMD.

Time frame: Day 1 to Week 24

Population: Defined as all enrolled participants who were administered CLS-AX in the Parent study, who have provided informed consent for participating in the Extension study, and from whom at least one safety measurement was obtained after the participant provided informed consent.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 240 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 121 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 41 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 243 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 201 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 160 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 81 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 121 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 160 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 200 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 242 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 242 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 40 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 80 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 160 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 41 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 202 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 121 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 80 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 243 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Receiving Additional Intravitreal (IVT) Aflibercept InjectionsWeek 241 Participants
Other Pre-specified

Mean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)

Intraocular pressure (IOP) is a diagnostic measurement of the fluid pressure, measured in millimeters of mercury, inside the eye. IOP was measured using Goldmann applanation tonometry or by use of a Tonopen tonometer. Normal eye pressure is usually considered to be between 10 and 20 mmHg (AAO.org). Untreated elevated eye pressure is a risk factor for glaucoma.

Time frame: Weeks 4, 8, 12, 16, 20 and 24

Population: Defined as all enrolled participants who were administered CLS-AX in the Parent study, who have provided informed consent for participating in the Extension study, and from whom at least one safety measurement was obtained after the participant provided informed consent.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 4-0.7 mmHgStandard Deviation 4.16
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 80.3 mmHgStandard Deviation 3.79
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 120.3 mmHgStandard Deviation 2.31
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 160.5 mmHgStandard Deviation 3.54
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 201.0 mmHgStandard Deviation 0
Cohort 2 (Low-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 24-1.0 mmHgStandard Deviation 4.24
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 240.6 mmHgStandard Deviation 1.99
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 4-0.5 mmHgStandard Deviation 0.84
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 160.4 mmHgStandard Deviation 1.72
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 20-0.6 mmHgStandard Deviation 0.98
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 80.2 mmHgStandard Deviation 1.72
Cohort 3 (High-mid Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 12-0.1 mmHgStandard Deviation 1.68
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 81.6 mmHgStandard Deviation 3.78
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 120.2 mmHgStandard Deviation 3.9
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 240.4 mmHgStandard Deviation 3.91
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 161.2 mmHgStandard Deviation 2.49
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 40.2 mmHgStandard Deviation 5.45
Cohort 4 (High Dose) ExtensionMean Change From Baseline in Pre-Injection Intraocular Pressure (IOP)Week 200.0 mmHgStandard Deviation 3.54
Other Pre-specified

Number of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept Injections

Number of participants qualifying to receive additional intravitreal aflibercept injections during the course of the study. Criteria included 1) loss of 10 or more letters in BCVA compared to the best prior study-assessed BCVA in the study eye that was attributed to intra- or sub-retinal fluid, 2) increase in central subfield thickness \>75 microns from Baseline in the study eye, or 3) presence of vision-threatening hemorrhage due to AMD in the study eye.

Time frame: Day 1 to Week 24

Population: Defined as all enrolled participants who were administered CLS-AX in the Parent study, who have provided informed consent for participating in the Extension study, and from whom at least one safety measurement was obtained after the participant provided informed consent.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 81 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 201 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 160 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 41 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 243 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 241 Participants
Cohort 2 (Low-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 121 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 160 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 40 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 80 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 121 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 200 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 242 Participants
Cohort 3 (High-mid Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 242 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 202 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 80 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsDay 1 to Week 243 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 241 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 160 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 121 Participants
Cohort 4 (High Dose) ExtensionNumber of Participants Qualifying to Receive Additional Intravitreal (IVT) Aflibercept InjectionsWeek 41 Participants

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