Global central labs at PPD provide laboratory services for clinical trials in all phases of the drug development process. With a location in Highland Heights, Ky., it conducts research on topics related to asthma, allergy, diabetes, vaccines and infectious diseases. The laboratory offers clinical laboratory services at more than 5,500 investigative sites in over 66 countries worldwide. It provides delivery services for trial samples and supplies. Global central labs at PPD conducts training sessions on topics related to sample collection management, storage and handling. It also offers customized electronic reporting of lab results, study progress and queries. The laboratory employs more than 300 trained scientists, technicians and project managers. It offers administrative and clinical management support services.