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Phase 2a multicenter, open-label, parallel-arm design study to evaluate the safety, tolerability and pharmacodynamics of a single intravitreal injection comparing 2 dose levels of GB-102 on subjects with Diabetic Macular Edema and Retinal Vein Occlusion
Phase 2a multicenter, open-label, parallel-arm design study to evaluate the safety, tolerability and pharmacodynamics of a single intravitreal injection comparing 2 dose levels (1 mg and 2 mg) of GB-102 on subjects with Diabetic Macular Edema and Retinal Vein Occlusion who have received prior treatment with anti-vascular endothelial growth factor (VEGF)
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| GB-102 Dose 1 (1 mg) | Experimental | Participants will receive intravitreal (IVT) GB-102 (1 mg) in the study eye at Baseline. |
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| GB-102 Dose 2 (2 mg) | Experimental | Participants will receive intravitreal (IVT) GB-102 (2 mg) in the study eye at Baseline. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| GB-102 | Drug | Intravitreal injection of GB-102 |
|
| Measure | Description | Time Frame |
|---|---|---|
| Occurrence of Adverse Events (AEs) Across All Study Visits | Number of subjects with an adverse event across all study visits | Baseline through Month 6 |
| Measure | Description | Time Frame |
|---|---|---|
| Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) (ETDRS) at All Study Visits | BCVA = best corrected visual acuity; ETDRS = early treatment of diabetic retinopathy BCVA = 0 (worst) to 100 (best) Assessment of change in BCVA (ETDRS letter score) from baseline at all visits | Baseline to Month 6 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Chief Medical Officer | Graybug Vision, Inc. | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Retinal Research Institute | Phoenix | Arizona | 85053 | United States | ||
| Southern Retina |
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| ID | Title | Description |
|---|---|---|
| FG000 | GB-102 Dose 1 (1 mg) | Participants will receive intravitreal (IVT) GB-102 (1 mg) in the study eye at Baseline. GB-102: Intravitreal injection of GB-102 |
| FG001 | GB-102 Dose 2 (2 mg) |
| Title | Milestones | Reasons Not Completed | |||||
|---|---|---|---|---|---|---|---|
| Overall Study |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot | Yes | No | No | Study Protocol | Nov 13, 2019 | May 27, 2021 |
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Parallel-arm design
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Open-label study design
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| Mean Change From Baseline in Central Subfield Thickness (CST) (SD-OCT) at All Study Visits |
CST = central subfield thickness SD-OCT = spectral domain-optical coherence tomography Assessment of change in CST (μm) measurement from baseline at all visits |
| Baseline to Month 6 |
| Time to Rescue Treatment | Assessment of time to rescue treatment over 6 months of treatment | Baseline through Month 6 |
| Savannah |
| Georgia |
| 31405 |
| United States |
| Eye Care Institute | Louisville | Kentucky | 40206 | United States |
| Boston Retina | Boston | Massachusetts | 02482 | United States |
| Sierra Eye Associates | Reno | Nevada | 89502 | United States |
| Texoma Retina Center | Denison | Texas | 75020 | United States |
Participants will receive intravitreal (IVT) GB-102 (2 mg) in the study eye at Baseline.
GB-102: Intravitreal injection of GB-102
| COMPLETED |
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| NOT COMPLETED |
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| ID | Title | Description |
|---|---|---|
| BG000 | GB-102 Dose 1 (1 mg) | Participants will receive intravitreal (IVT) GB-102 (1 mg) in the study eye at Baseline. GB-102: Intravitreal injection of GB-102 |
| BG001 | GB-102 Dose 2 (2 mg) | Participants will receive intravitreal (IVT) GB-102 (2 mg) in the study eye at Baseline. GB-102: Intravitreal injection of GB-102 |
| BG002 | Total | Total of all reporting groups |
| Units | Counts |
|---|---|
| Participants |
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| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean | Standard Deviation | years |
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| Sex: Female, Male | Count of Participants | Participants |
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| Ethnicity (NIH/OMB) | Count of Participants | Participants |
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| Race (NIH/OMB) | Count of Participants | Participants |
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| Region of Enrollment | Number | participants |
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| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Occurrence of Adverse Events (AEs) Across All Study Visits | Number of subjects with an adverse event across all study visits | Posted | Count of Participants | Participants | Baseline through Month 6 |
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| ||||||||||||||||||||||||||||||
| Secondary | Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) (ETDRS) at All Study Visits | BCVA = best corrected visual acuity; ETDRS = early treatment of diabetic retinopathy BCVA = 0 (worst) to 100 (best) Assessment of change in BCVA (ETDRS letter score) from baseline at all visits | Posted | Mean | Full Range | letters | Baseline to Month 6 |
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| ||||||||||||||||||||||||||||||
| Secondary | Mean Change From Baseline in Central Subfield Thickness (CST) (SD-OCT) at All Study Visits | CST = central subfield thickness SD-OCT = spectral domain-optical coherence tomography Assessment of change in CST (μm) measurement from baseline at all visits | Posted | Mean | Full Range | micrometers | Baseline to Month 6 |
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| ||||||||||||||||||||||||||||||
| Secondary | Time to Rescue Treatment | Assessment of time to rescue treatment over 6 months of treatment | Posted | Median | 95% Confidence Interval | days | Baseline through Month 6 |
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Adverse events (AEs) were collected from baseline for the duration of a subject's participation in the study (up to 180 days). AEs are reported as treatment-emergent.
An adverse event (AE) is defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it is considered drug-related. AEs were obtained through solicited and spontaneous comments from subjects and through observations by the Investigator as outlined in the study protocol. Ocular AEs are presented for both study eye and non-study eye combined.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | GB-102 Dose 1 (1 mg) | Participants will receive intravitreal (IVT) GB-102 (1 mg) in the study eye at Baseline. GB-102: Intravitreal injection of GB-102 | 0 | 10 | 1 | 10 | 7 | 10 |
| EG001 | GB-102 Dose 2 (2 mg) | Participants will receive intravitreal (IVT) GB-102 (2 mg) in the study eye at Baseline. GB-102: Intravitreal injection of GB-102 | 0 | 11 | 2 | 11 | 10 | 11 |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Acute Myocardial Infarction | Cardiac disorders | MedDRA 22 | Systematic Assessment |
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| Gastrointestinal haemorrhage | Gastrointestinal disorders | MedDRA 22 | Systematic Assessment |
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| Corneal Oedema | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Visual Impairment | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Anaemia | Blood and lymphatic system disorders | MedDRA 22 | Systematic Assessment |
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| Diverticulum | Gastrointestinal disorders | MedDRA 22 | Systematic Assessment |
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| Gastrointestinal Vascular Malformation Haemorrhagic | Gastrointestinal disorders | MedDRA 22 | Systematic Assessment |
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| Blood Potassium Decreased | Investigations | MedDRA 22 | Systematic Assessment |
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| Hyperkalaemia | Metabolism and nutrition disorders | MedDRA 22 | Systematic Assessment |
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| Prostate Cancer | Neoplasms benign, malignant and unspecified (incl cysts and polyps) | MedDRA 22 | Systematic Assessment |
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| Nephropathy | Renal and urinary disorders | MedDRA 22 | Systematic Assessment |
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| Peripheral Arterial Occlusive Disease | Vascular disorders | MedDRA 22 | Systematic Assessment |
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| Blepharitis | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Cataract | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Posterior Capsule Opacification | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Retinal Aneurysm | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Eye Pain | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Visual Acuity Reduced | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Vitreous Floaters | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Macular Edema | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Vision Blurred | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Visual Impairment | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Iridocyclitis | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Swelling of Eyelid | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Cataract Nuclear | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Conjunctival Irritation | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Corneal Edema | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Eye Irritation | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Eye Edema | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Iritis | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Lacrimation Increased | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Ocular Hyperaemia | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Pterygium | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Punctate Keratitis | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Pupils Unequal | Eye disorders | MedDRA 22 | Systematic Assessment |
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| Product Residue Present | Investigations | MedDRA 22 | Systematic Assessment |
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| Intraocular Pressure Increased | Investigations | MedDRA 22 | Systematic Assessment |
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| Vital Dye Staining Cornea Present | Investigations | MedDRA 22 | Systematic Assessment |
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| Chorioretinitis | Infections and infestations | MedDRA 22 | Systematic Assessment |
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| Procedural Pain | Injury, poisoning and procedural complications | MedDRA 22 | Systematic Assessment |
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Too few subject numbers divided across multiple indications. The trial was conducted in 21 subjects with Diabetic Macular Edema, Branch Retinal Vein Occlusion and Central Retinal Vein Occlusion divided between two doses. Subjects had variable disease control and duration prior to entry.
Any investigator wishing to publish or present any study finding must present a manuscript or abstract to Graybug Vision 120 days prior to submission for publication or presentation to provide Graybug Vision an opportunity for review and comment.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Director, Global Clinical Development Operations | Graybug Vision | 5622098872 | bpatel@graybug.vision |
| Prot_000.pdf |
| SAP | No | Yes | No | Statistical Analysis Plan | Sep 18, 2020 | May 27, 2021 | SAP_001.pdf |
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| ID | Term |
|---|---|
| D008269 | Macular Edema |
| ID | Term |
|---|---|
| D008268 | Macular Degeneration |
| D012162 | Retinal Degeneration |
| D012164 | Retinal Diseases |
| D005128 | Eye Diseases |
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| ID | Term |
|---|---|
| D000077210 | Sunitinib |
| ID | Term |
|---|---|
| D011758 | Pyrroles |
| D001393 | Azoles |
| D006573 | Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D007211 | Indoles |
| D006574 | Heterocyclic Compounds, 2-Ring |
| D000072471 | Heterocyclic Compounds, Fused-Ring |
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| Male |
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| Not Hispanic or Latino |
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| Unknown or Not Reported |
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| Asian |
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| Native Hawaiian or Other Pacific Islander |
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| Black or African American |
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| White |
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| More than one race |
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| Unknown or Not Reported |
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