PAREXEL ANNOUNCES DATE OF FIRST QUARTER FY 2003 EARNINGS RELEASE AND CONFERENCE CALL

BOSTON, MA, September 30, 2002 — PAREXEL International Corporation (Nasdaq: PRXL) will release First Quarter FY 2003 financial results on Wednesday, October 23, 2002 before the opening of trading. The announcement will be available on PAREXEL’s website at www.parexel.com and on the PR Newswire website at www.prnewswire.com.

Following the release of its results, PAREXEL will host a conference call and live webcast at 10:00 a.m. EST to discuss the results. To access the webcast, visit PAREXEL’s website at www.parexel.com, click on the Investor Relations menu and select “Webcasts”. Double-click the microphone labeled “Q1 Fiscal 2003 PAREXEL International Earnings Conference Call” to begin. This webcast will continue to be accessible for one month following the live broadcast. To participate via telephone, dial (212) 346-0487 and ask to join the PAREXEL quarterly conference call.

PAREXEL is one of the largest pharmaceutical 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., provides a variety of technology products and services, including web-based portal solutions and voice and data systems, which are designed to accelerate and enhance the clinical development and launch processes. The Company’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 56 locations throughout 37 countries around the world, and has approximately 4,930 employees.