Prime Medicine, Inc. Common StockFirst clinical clearance for in vivo Prime Editing therapy targeting Wilson disease, enabling Phase 1/2 trial.

Prime Medicine has received clearance from New Zealand's Medsafe for its Clinical Trial Application for PM577a, an investigational Prime Editing therapy targeting the H1069Q mutation in Wilson disease. This is the company's first clinical authorization for an in vivo Prime Editing therapy, allowing a global Phase 1/2 study to begin in the second half of 2026. The trial will assess safety, tolerability, and biological activity in adults and adolescents, with initial clinical data expected in 2027. PM577a is designed as a one-time therapy that corrects the genetic root cause of Wilson disease, a disorder caused by ATP7B gene mutations leading to copper buildup. Prime Medicine also noted its modular lipid nanoparticle delivery platform may enable expansion into additional mutations, including R778L, which is more common in East Asian populations.
Prime Medicine, Inc. Common StockFirst clinical clearance for in vivo Prime Editing therapy targeting Wilson disease, enabling Phase 1/2 trial.