Study to Evaluate the Efficacy and Safety of Oral CT1812 in Participants With Geographic Atrophy (GA) Secondary to Dry Age-Related Macular Degeneration (AMD).

Phase 2TerminatedNCT05893537

Cognition Therapeutics100 enrolled

Overview

This is a Phase 2, prospective, multicenter, randomized, double-masked, placebo-controlled 104-week study to assess the efficacy, safety, and tolerability of orally delivered CT1812 compared to placebo in participants with GA associated with dry AMD. Participants ≥50 years old diagnosed with GA secondary to dry AMD and who meet all inclusion criteria and none of the exclusion criteria will be included in the study. The study will randomize up to 246 participants in a 1:1 manner (123 participants per treatment group) to receive a single daily dose of either CT1812 (200 mg) or placebo across approximately 40-50 sites. Following a screening period of up to 60 days, the total expected duration of participant participation in the study will be 108 weeks (104-week treatment period followed by a 28-day \[4-week\] post treatment safety follow up period).

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Enrollment

100

Conditions

Age-Related Macular Degeneration

Interventions

Active Comparator CT1812DRUG

123 participants will receive a single daily dose of CT1812 (200 mg)

Placebo ComparatorDRUG

123 participants will receive a single daily dose of placebo

Eligibility

Sex: ALLMin age: 50 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Age ≥50 years at time of informed consent. 2. BCVA of 24 letters or better using Early Treatment Diabetic Retinopathy Study (ETDRS) charts at screening. 3. Stable pharmacological treatment of any other chronic conditions for at least 30 days prior to screening. EXCLUSION CRITERIA: 1. GA due to causes other than dry AMD. 2. Any history or current evidence of exudative ("wet") AMD. 3. Retinal disease other than dry AMD. 4. Any ophthalmologic condition that prevents adequate imaging of the retina as judged by the study site or central reading center. 5. Intraocular surgery (including intraocular lens implantation surgery) within 3 months prior to randomization. 6. Any ophthalmic condition that will or is likely to require surgery during the study period. 7. Hypersensitivity to fluorescein. 8. Suspected or known allergy to any components of the study treatments. 9. History of vitrectomy surgery, submacular surgery or any other surgical intervention for dry AMD. 10. History of glaucoma filtering surgery or corneal transplant in the study eye. 11. History of central serous retinopathy in either eye.

Locations (19)

Phoenix Retina Associates

Phoenix, Arizona, United States

Retinal Consultants Medical Group

Sacramento, California, United States

Outcomes

Primary Outcomes

Change from baseline in Geographic Atrophy (GA) lesion area over 104 weeks in the study eye.

Compare the mean rate of growth (slope) in GA lesion area in the study eye measured by fundus autofluorescence imaging (FAF).

Time frame: Baseline through Week 104

Secondary Outcomes

Safety and Tolerability of CT1812

Incidence and Severity of Adverse Events compared to placebo in participants with GA secondary to dry AMD.

Time frame: Baseline through Week 104

Plasma concentration of CT1812

Measure pre-dose plasma concentration of CT1812.

Time frame: Baseline through Week 104

Data from ClinicalTrials.gov

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