Geographic Atrophy (GA)

This study is researching an experimental drug called pozelimab (called "study drug"). The study is focused on people with a condition where certain parts of the eye's retina stop working over time, which can make it harder to see. This is called geographic atrophy (GA). The aim of the study is to see how safe and tolerable the study drug is when used as an injection in the eye. The study is looking at several other research questions, including: * What side effects may happen from taking the study drug * How much study drug is in the blood and the fluid in the eye at different times * Whether the body makes antibodies against the study drug (which could make the drug less effective or could lead to side effects)

This study is researching experimental (study) drugs called pozelimab and cemdisiran. The study is focused on participants who have Geographic Atrophy (GA) caused by Age-related Macular Degeneration (AMD). Geographic atrophy is a medical term that refers to later-stage cases of AMD which is an eye condition affecting central vision (what one sees straight ahead). The purpose of this study is to evaluate the progression rate of Geographic Atrophy in eyes of patients treated with cemdisiran alone or in combination with pozelimab compared to those treated with placebo. The study is looking at several other research questions, including: * What side effects may happen from taking the study drug(s) * How much study drug(s) are in the blood at different times * Whether the body makes antibodies against the study drug(s) (which could make the study drug(s) less effective or could lead to side effects)

The purpose of this study is to collect efficacy and safety information of intravitreal injection for 3 experimental arms, including 2 dose levels of ONL1204 and 2 treatment frequencies in patients with GA associated with AMD. GA associated with AMD is one of the world's leading causes of visual disability and legal blindness globally. Associated with aging, cigarette smoking, obesity, diets low in certain nutrients, a lifestyle related to cardiac risk, and a growing list of genetic factors, AMD is becoming an increasingly prevalent public health concern, especially as the global population ages. ONL1204 is a first-in-class inhibitor of fragment apoptosis stimulator receptor-mediated cell death that has demonstrated protection of multiple retinal cell types in numerous preclinical models of retinal disease, including models of dry AMD.