PSR Orphan Experts

PSR Orphan Experts is a specialist contract research organization (CRO) dedicated exclusively to the development of orphan drugs and treatments for rare diseases. Founded in 1998 and headquartered in the Netherlands, the company provides comprehensive clinical trial management, regulatory consulting, and patient recruitment services tailored to the unique challenges of small patient populations. PSR is recognized for its "Orphan Toolkit," a suite of specialized services designed to navigate the complex regulatory and operational landscapes of the rare disease sector. In 2017, the company was acquired by Ergomed plc to strengthen its global rare disease capabilities. In 2022, PSR Orphan Experts was fully integrated and rebranded under the Ergomed name to unify the group's clinical research offerings.