Guy's Drug Research Unit

Guy's Drug Research Unit (GDRU) is a premier Phase 1 clinical research facility located in London, United Kingdom. Originally established as an independent unit and later acquired by Quintiles (now IQVIA), it specializes in conducting first-in-human and early-phase clinical trials for global pharmaceutical and biotechnology sponsors. The unit is renowned for its expertise in complex study designs, including dose-escalation, drug-drug interaction, and food-effect studies. Operating within a hospital-linked environment near Guy's Hospital, GDRU provides high-level safety monitoring and access to specialist medical support. It serves as a critical hub for early clinical development across a wide range of therapeutic areas, including neurology, cardiovascular, and infectious diseases.