Apellis Pharmaceuticals (APLS) announced positive data from the late-stage GALE long-term extension study evaluating its marketed drug, Syfovre (pegcetacoplan injection), to treat patients with geographic atrophy (GA) secondary to age-related macular degeneration.Per the data readout, presented at a recent medical conference, treatment with Syfovre in the GALE study preserved visual function at 36 months in the GA patients. Per Apellis, Syfovre is the only approved GA treatment to show a benefit on visual f ...