Evolution Research Group (ERG) is a leading independent clinical research site network, specializing in both inpatient and outpatient Phase I-IV clinical trials. ERG is highly regarded for its work in central nervous system (CNS) studies and other therapeutic areas such as psychiatry, neurology, sleep disorders, addiction, and diabetes. With a robust network of wholly owned and affiliated sites, ERG supports clinical trials through centralized operations that streamline recruitment, regulatory planning, and quality assurance. Their comprehensive services help sponsors accelerate the development of life-enhancing therapies.