PAREXEL ANNOUNCES DATE OF FIRST QUARTER 2001 EARNINGS RELEASE AND CONFERENCE CALL

BOSTON, MA, October 5, 2000 — PAREXEL International Corporation (Nasdaq: PRXL) will release First Quarter 2001 financial results on Thursday, October 26, 2000 before the opening of trading. The announcement will be available on PAREXEL’s website, and on PR Newswire’s website.

Following the release of its results, PAREXEL will host a conference call at 10:00 a.m. EST to discuss the results. The conference call will be available live over the internet via a link on the PAREXEL web site. A replay of the conference call will also be available on the company’s website via webcast shortly after the call.

PAREXEL is one of the largest contract 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 accelerate 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. 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 43 locations throughout 29 countries around the world, and has approximately 4,200 employees.