Skip to main content
For more than 20 years, we’ve delivered research directly to patients. In August 2025, PCM Trials became EmVenio Clinical Research, a division of Professional Case Management—carrying forward decades of expertise with greater flexibility and reach.
  • Case Study
  • Legacy Library

Home Visit Nurses Deliver Complete Trial Data Despite A Challenging Population, A Pandemic And Severe Weather

Background

Rett syndrome, a rare progressively degenerative neurological disorder that occurs mostly in girls, is caused by mutations in the X-linked gene methyl-CpG-binding protein 2 (MECP2), a pervasive transcriptional regulator. At a very young age—often between 6 and 18 months of age—girls with classic Rett syndrome start developing severe problems with language and communication, learning, coordination and other brain functions, often accompanied by seizures. Rett syndrome is estimated to affect 6,000 – 9,000 patients in the U.S. alone.