BARNETT RELEASES STATE CLINICAL TRIAL REQUIREMENTS REFERENCE GUIDE

PHILADELPHIA, PA, September 13, 2004 — Barnett Educational Services, a division of PAREXEL International Corporation (Nasdaq: PRXL), has announced the release of State-by-State Clinical Trial Requirements Reference Guide. Designed for clinical research professionals, regulatory affairs professionals, clinical site staff, and IRBs, the handbook has been developed to identify and characterize state-specific requirements in the growing number of areas in which state laws and regulations, rather than federal requirements, are driving clinical trial standards today.

The Reference Guide provides 50 detailed state profiles, which break down each state’s requirements in more than a dozen practical areas critical to clinical research programs, including mandatory notifications to state officials, age of consent standards, legal representative requirements, drug dispensing/administration provisions, and informed consent and IRB standards. In addition, each state profile provides contact information for essential licensing authorities (medical, nursing, and pharmacy), as well as special state rules in areas such as cancer research, HIV testing, and insurance coverage for clinical trial-related costs.

The State-by-State Clinical Trial Requirements Reference Guide is available from Barnett Educational Services for $24.95 per copy by calling Customer Service at 610-565-2622, x2200 or by ordering online at www.barnettinternational.com.

PAREXEL is one of the largest biopharmaceutical outsourcing organizations in the world, providing a broad range of knowledge-based contract research, medical marketing and consulting services to the worldwide pharmaceutical, biotechnology and medical device industries. With a commitment to providing solutions that expedite time-to-market and peak market penetration, PAREXEL has developed significant expertise in clinical trials management, data management, biostatistical analysis, medical marketing, clinical pharmacology, regulatory and medical consulting, industry training and publishing and other drug development consulting services. Its information technology subsidiary, Perceptive Informatics, Inc., develops and offers a portfolio of innovative technology-based products and services that facilitate clinical drug development and are designed to decrease time to peak sales. The technology portfolio includes web-based portal solutions and tracking tools, Interactive Voice Response Systems (IVRS), Clinical Trial Management Systems (CTMS), electronic diary and investigator database solutions. Perceptive also offers advanced medical diagnostics services to assess rapidly and objectively the safety and efficacy of new drugs, biologics, and medical devices in clinical trials. PAREXEL’s integrated services, therapeutic area depth and sophisticated information technology, along with its experience in global drug development and product launch services, represent key competitive strengths. Headquartered near Boston, MA, PAREXEL operates in 51 locations throughout 35 countries around the world, and has 4,875 employees.

PAREXEL is a registered trademark of PAREXEL International Corporation, and Perceptive Informatics is a trademark of Perceptive Informatics, Inc. All other names or marks may be registered trademarks or trademarks of their respective owners and are hereby acknowledged.