• Prime Medicine's PM359, the first Prime Editing therapy administered to humans, demonstrated rapid restoration of NADPH oxidase activity in a patient with Chronic Granulomatous Disease, exceeding therapeutic thresholds.
• A single infusion of PM359 achieved 66% DHR positivity by Day 30, significantly above the 20% threshold believed to be potentially curative, with faster engraftment than existing gene editing technologies.
• The therapy showed an encouraging safety profile with no serious adverse events related to PM359, marking a significant milestone for Prime Editing technology as a potential one-time curative treatment for genetic diseases.