A long-running race to develop a gene therapy for the most common cause of age-related blindness is heating up.
On Wednesday, 4D Molecular Therapeutics announced new data from its program for the disease, known as wet age-related macular degeneration, or wet-AMD. In one 30-person Phase 2 study, patients’ need for standard-of-care injections fell by 89% after receiving gene therapy, and 73% did not need another standard-of-care shot for at least 32 weeks.
Notably, only two of 71 patients who received a high dose of therapy have shown signs of ocular inflammation, 4D said. In 2021, another leading contender, Adverum, was set back after a patient with a related disease went blind in one eye.
