PRA has entered an agreement to acquire privately held CRI Lifetree, a specialized research organization focused on the conduct and design of early stage, patient population studies, and is therapeutically focused in Human Abuse Liability (HAL), addiction, pain, psychiatry, neurology, pediatric and infectious disease services. The acquisition expands PRA’s Phase I-II clinical research services in specialized patient populations for both inpatient and outpatient settings. CRI Lifetree, headquart...