RESEARCH TRIANGLE PARK, N.C. - February 18, 1999 - Quintiles Transnational Corp. (Nasdaq: QTRN) announced today the acquisition of Oak Grove Technologies Inc., a leader in providing current Good Manufacturing Practice (cGMP) compliance services to the pharmaceutical, biotechnology and medical device industries.

Oak Grove specializes in manufacturing, process and system validation, concept development, design engineering, budget and procurement, program management, facility commissioning and software validation. The company will be part of Quintiles Consulting, a premier provider of strategic consulting throughout the product development and commercialization process.

Quintiles acquired Oak Grove, based near Chicago, in a purchase transaction that is expected to be neutral to slightly accretive to Quintiles' earnings per share.

"Regulatory commissioning and validation often are causes of delay in obtaining approval to manufacture from the Food and Drug Administration," said Jim Hamill, Executive Vice President of Quintiles Consulting. "Oak Grove has extensive experience in helping companies comply with the FDA?s regulatory standards governing manufacturing. Oak Grove's compliance expertise, combined with Quintiles' industry-leading clinical research and commercialization services, can help bring products to market faster. That translates into real value for our customers and patients in need."

Oak Grove, which has about 50 employees, had been privately held. Quintiles has entered into employment agreements with Oak Grove President Mitch Januszewski and Executive Vice President Thomas Dzierozynski, who will continue to lead this new unit of Quintiles Consulting.

"As part of Quintiles, we'll have access to a significantly larger base of customers that could benefit from our services," Januszewski said. "This transaction also gives us greater opportunity to address product manufacturing issues earlier in the development process. For customers, this should mean faster, more cost-effective compliance approval and production start-up."

Oak Grove's headquarters is located at 975 Campus Drive, Mundelein, Illinois 60060. Telephone: (847) 918-5470. Fax: (847) 918-5477.

Quintiles Transnational Corp. is the market leader in providing a full range of integrated product development and commercialization services to the pharmaceutical, biotechnology and medical device industries. Quintiles also provides healthcare policy consulting and health information management services to healthcare and governmental organizations worldwide. Quintiles is headquartered near Research Triangle Park, North Carolina. Quintiles operates through specialized work groups dedicated to meeting customers' individual needs and has more than 15,000 employees worldwide and offices in 30 countries.

Information in this press release contains "forward-looking statements." These statements involve risks and uncertainties that could cause actual results to differ materially, including without limitation, the ability of the combined businesses to be integrated with Quintiles' current operations, actual operating performance, the ability to maintain large client contracts or to enter into new contracts, and the actual costs of combining the businesses. Additional factors that could cause actual results to differ materially are discussed in the company's recent filings with the Securities and Exchange Commission, including but not limited to its S-3 and S-4 Registration Statements, its Annual Report on Form 10-K, its Form 8-Ks, and its other periodic reports, including Form 10-Qs.