Acadia Pharmaceuticals NDA for Rett Syndrome
Acadia Pharmaceuticals has submitted an NDA for trofinetide for treating Rett syndrome in adults and pediatric patients two years of age and older. The submission is based on data from the pivotal Phase 3 Lavender study evaluating the efficacy and safety of trofinetide versus placebo in 187 girls and young women aged 5-20 years with Rett syndrome. “The study demonstrated a statistically significant improvement over placebo on the co-primary endpoints,” the company says, which includes a caregiver assessment of the core symptoms of Rett syndrome and a global physician assessment of the worsening or improving of Rett syndrome.
Rett syndrome is a rare genetic neurodevelopmental disorder that occurs primarily in females, according to the company. It is caused by mutations on the X chromosome on a gene called MECP2. Those afflicted experience a period of developmental regression between 18-30 months of age, which is typically followed by a plateau period lasting many years, it says, adding that Rett impairs the central nervous system that causes a “loss of communication skills, purposeful hand use, gait abnormalities, and stereotypic hand movements such as hand wringing/squeezing, clapping/tapping, mouthing and washing/rubbing automatisms.”