PRA International, headquartered in Raleigh, North Carolina, is a leading international clinical research organization (CRO) with over 3,000 employees. The company provides services on a contract basis to the pharmaceutical and biotechnology industries. PRA offers comprehensive services including the filing of Investigational New Drug (IND) and similar regulatory applications, management and implementation of Phase I through IV clinical trials, preparation and submission of New Drug Applications (NDAs), and post-marketing surveillance on an international basis.