Parexel is a global clinical research organization serving biopharmaceutical companies throughout the development of new medicines. Its work spans Phase I–IV clinical trials, portfolio and trial management, regulatory strategy, market access, and lifecycle planning. With more than 21,000 professionals, Parexel combines clinical, regulatory, and therapeutic expertise with patient insights and innovative trial designs. The company supports research across areas including oncology, neuroscience, and rare diseases, with a focus on making clinical development more efficient and patient-centered.