Prime Medicine (PRME) Announces Recent Progress and Highlights 2023 Strategic Priorities

January 9, 2023; “Today, we are pleased to announce accomplishments across our portfolio and platform, including new preclinical proof-of-concept data in Friedrich’s ataxia and cystic fibrosis showing restoration of genetic function.

In preclinical studies, Prime Medicine is using its technology to precisely remove the GAA pathological repeats at the FXN gene, restoring Frataxin protein expression and sensory neuron function in patient dorsal root ganglia. Today, Prime Medicine announced new preclinical data demonstrating that Prime Editing-mediated removal of pathological repeats in vitro results in correction of hypermethylation at the FXN gene, restoring genetic function back to wild-type levels. The company believes these data also support the evaluation of Prime Editing for the potential treatment of other repeat expansion diseases, many of which exhibit hypermethylation as a key feature of the underlying pathogenesis.