Parexel International

Parexel International is a global clinical research organization (CRO) specializing in clinical trial management, regulatory consulting, biopharmaceutical development services, and patient-focused research solutions. Founded in 1982 and headquartered in Durham, North Carolina, United States, Parexel supports pharmaceutical, biotechnology, and medical device companies in bringing innovative healthcare products to market.

The company provides comprehensive clinical development services across the entire drug development lifecycle, including Phase I–IV clinical trials, clinical operations, regulatory affairs, pharmacovigilance, medical writing, biostatistics, and clinical data management. Parexel works with healthcare organizations across multiple therapeutic areas, including oncology, rare diseases, vaccines, neuroscience, immunology, and chronic conditions.

Parexel specializes in designing and managing complex global clinical studies by connecting sponsors with research sites, investigators, and patient communities. Its technology-enabled clinical trial solutions help improve study efficiency, enhance patient engagement, and accelerate the development of new therapies.

The company also provides regulatory consulting services to help pharmaceutical and biotechnology organizations navigate global approval processes with agencies including the FDA, EMA, and other international regulatory authorities.

Parexel operates a worldwide network of clinical research experts and facilities, following strict ethical, scientific, and regulatory standards. The organization emphasizes patient-centric research approaches, diversity in clinical trials, and innovative trial methodologies.

With more than four decades of clinical research experience, Parexel has become one of the world’s most recognized CROs, supporting the development of safer and more effective medicines for patients globally.