Phase 3 Study of Injectable Pozelimab and Cemdisiran Treatments for Adults With Geographic Atrophy Caused by Age-Related Macular Degeneration

What this Trial Is About

Researchers are evaluating the experimental drugs pozelimab and cemdisiran for treating Geographic Atrophy GA, a late stage of Age-related Macular Degeneration AMD that affects central vision. The study aims to compare the progression rate of GA in patients receiving cemdisiran alone, the combination of pozelimab and cemdisiran, or a placebo. Additional goals include monitoring side effects, drug levels in the blood over time, and the bodys antibody response to these drugs. Participants will receive subcutaneous injections of either pozelimab combined with cemdisiran, cemdisiran alone, or a placebo. The study is randomized and double-masked with three groups receiving different treatments. Treatment and monitoring will continue through specified time points up to 104 weeks, with follow-up on safety and antibody responses extending even further. During the study, participants will attend regular clinic visits for eye exams, imaging using Fundus Autofluorescence to measure GA lesion growth, vision tests including visual acuity and contrast sensitivity, and blood tests to assess drug levels and antibody formation. Researchers will track treatment-emergent adverse events and evaluate changes in vision and GA progression over time. Participation lasts until the study completion date in April 2033, with primary outcomes assessed at 52 weeks and further evaluations up to 296 weeks.

A Study Investigating Subcutaneously Administered Pozelimab in Combination With Cemdisiran or Cemdisiran Alone in Adult Participants With Geographic Atrophy