CONTACTS: James Winschel, Senior Vice-President and Chief Financial Officer
Jill Baker, Senior Director of Investor Relations
(781) 434-4118

PAREXEL REPORTS FOURTH QUARTER AND FISCAL 2003 FINANCIAL RESULTS

- Fiscal year revenue grows 15% -

Boston, MA, August 7, 2003 – PAREXEL International Corporation (Nasdaq: PRXL) today announced its financial results for the fourth quarter and fiscal year ended June 30, 2003.

For the three months ended June 30, 2003, PAREXEL’s consolidated service revenue grew 11.7% to $138.1 million compared with $123.6 million in the prior year period. Including the effect of a $3.5 million facilities-related charge, as detailed below, and severance costs of $1.9 million, operating income was $3.6 million, or 2.6% of consolidated service revenue in the fourth quarter versus operating income of $9.2 million, or 7.5% in the comparable quarter of the prior year. The severance costs reduced the operating margin by 1.4 points in the quarter. Net income for the quarter was $2.9 million, or $0.11 per diluted share, compared with net income of $4.0 million, or $0.16 per diluted share for the quarter ended June 30, 2002.

In the quarter ended June 30, 2003, the Company recorded a facilities-related charge totaling $3.5 million, as a result of changes in prior assumptions regarding certain leased facilities which were abandoned as part of a restructuring in June 2001. The changes in prior assumptions were caused by a further deterioration in challenging real estate market conditions which have made it difficult to sub-lease the abandoned facilities at previously estimated rental rates.

On a proforma basis, excluding the $3.5 million facilities-related charge, operating income for the fourth quarter was $7.1 million, or 5.1% of consolidated service revenue, net income was $5.1 million, and earnings per diluted share were $0.20. The fourth quarter charge had no beneficial impact on proforma fourth quarter operating results.

For the fiscal year ended June 30, 2003, consolidated service revenue was $512.1 million versus $444.3 million in the prior year period, an increase of 15.3%. Operating income for Fiscal 2003 was $20.6 million, or 4.0% of consolidated service revenue, compared with $20.5 million, or 4.6% in the prior year. Net income for Fiscal 2003 was $10.7 million or $0.42 per diluted share, compared with net income of $13.2 million, or $0.52 per diluted share, for the fiscal year ended June 30, 2002. On a proforma basis, excluding $9.4 million in facilities-related charges, operating income for Fiscal 2003 was approximately $30 million, or 5.9% of revenue, net income was $16.7 million, and earnings per diluted share were $0.65, representing growth of 25% over Fiscal 2002 earnings per share.

On a segment basis, service revenue for the fourth quarter was $84.3 million in Clinical Research Services, $24.5 million in the PAREXEL Consulting Group, $21.4 million in Medical Marketing Services, and $7.8 million in Perceptive Informatics, Inc. (Perceptive). For the fiscal year, service revenue was $312.8 million in Clinical Research Services, $100.6 million in the PAREXEL Consulting Group, $73.8 million in Medical Marketing Services, and $24.8 million in Perceptive.

For the six-month period from January to June 2003, PAREXEL reported net new business (gross new business less cancellations) of $263.8 million. Net new business for this period increased 15.4% when compared with the six-month period from January to June of 2002, but declined 10.5% from the six-month period ended on December 31, 2002. Net new business for the full fiscal year was $558.6, an increase of 16.5% from Fiscal 2002. Backlog at June 30, 2003 was $586.6 million, a sequential decrease of 1.1% from the December 31, 2002 backlog, but an increase of 8.6% over the backlog reported at June 30, 2002, which was $540 million.

Mr. Josef H. von Rickenbach, PAREXEL’s Chairman and Chief Executive Officer stated, “This fiscal year we achieved double-digit revenue growth and a full-year proforma operating margin that was in line with the Company’s target. The Company’s global footprint significantly contributed to our ability to achieve these results, with Europe generating strong revenue growth and profitability improvement. PAREXEL’s largest business unit, Clinical Research Services, drove the Company’s growth, showing considerable improvement over the course of the year in key productivity and profitability metrics. We did experience challenges in the PAREXEL Consulting Group business over the course of the year, but have taken steps which we believe will result in improvement to the business going forward.”

“As we enter Fiscal 2004, we believe that our momentum and that of the industry is positive. This gives us the confidence to provide earnings per share guidance for the new fiscal year that is higher than the current Wall Street consensus numbers. Achieving the mid-point of our projected EPS range will result in growth of almost 30% over Fiscal 2003 proforma earnings per share.”

The Company issued forward-looking guidance regarding revenue and earnings per share for the first quarter of Fiscal 2004 (ending September 30, 2003), for Calendar 2003, and for Fiscal 2004. For the first quarter of Fiscal 2004, the Company anticipates reporting consolidated service revenue in the range of $132 to $137 million and earnings per diluted share in the range of $0.17 to $0.19. For the 2003 calendar year, expectations are for consolidated service revenue in the range of $540 to $550 million, and earnings per diluted share as defined by GAAP in the range of $0.65 to $0.69, and on a proforma basis in the range of $0.74 to $0.78 (excluding the nine cents per share restructuring charge reported in the fourth quarter of FY 2003). For Fiscal 2004, the Company anticipates reporting consolidated service revenue in the range of $560 to $580 million and earnings per diluted share in the range of $0.80 to $0.88.

The Company believes that presenting the proforma information contained in this press release assists investors and others to gain a better understanding of its core operating results and future prospects, especially when comparing such results to previous periods or forecasts. Management uses this proforma information, in addition to the GAAP information, as the basis for measuring the Company’s core operating performance and comparing such performance to that of prior

periods and to the performance of its competitors. Such measures are also used by management in its financial and operating decision-making. Proforma information is not meant to be considered superior to or a substitute for the Company’s results of operations prepared in accordance with GAAP. A reconciliation of Generally Accepted Accounting Principles (GAAP) results with proforma results may be found in the attached financial tables.

PAREXEL’s Fourth Quarter and Fiscal 2003 Earnings Conference Call will begin at 10 a.m. ET on Thursday, August 7th and will be broadcast live over the internet via webcast. The webcast may be accessed in the “Webcasts” portion of the Investor Relations section of the Company’s website at http://www.parexel.com. Users should follow the instructions provided to assure that the necessary audio applications are downloaded and installed. A replay of this webcast will be archived on the website approximately two hours after the call and will continue to be accessible for approximately one year following the live event. To participate via telephone, dial (212) 676-4900 and ask to join the PAREXEL quarterly conference call.

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 57 locations throughout 36 countries around the world, and has 5,095 employees.

This release contains “forward-looking” statements regarding future results and events, including, without limitation, statements regarding the Company’s existing capital resources and future cash flows from operations, and statements regarding expected financial results, future growth and customer demand, such as the guidance provided by the Company with respect to the first quarter of Fiscal 2004, the second half of calendar year 2003, and Fiscal 2004. For this purpose, any statements contained herein that are not statements of historical fact may be deemed forward-looking statements. Without limiting the foregoing, the words “believes”, “anticipates”, “plans”, “expects”, “intends”, “appears”, “estimates”, “projects” and similar expressions are intended to identify forward-looking statements. These statements involve a number of risks and uncertainties. The Company’s actual future results may differ significantly from the results discussed in the forward-looking statements contained in this release. Important factors that might cause such a difference include, but are not limited to, risks associated with: actual operating performance; actual expense savings and other operating improvements resulting from recent restructurings; the loss, modification, or delay of contracts; the Company’s dependence on

certain industries and clients; the Company’s ability to win new business, manage growth, and attract and retain employees; the Company’s ability to complete additional acquisitions and to integrate newly acquired businesses or enter into new lines of business; government regulation of the drug, medical device and biotechnology industry; consolidation within the pharmaceutical industry; competition within the biopharmaceutical services industry; the potential for significant liability to clients and third parties; the potential adverse impact of health care reform; and the effects of exchange rate fluctuations and other international economic, political, and other risks. Such factors and others are discussed more fully in the section entitled “Risk Factors” of Amendment No. 3 to the Company’s Registration Statement on Form S-3/A, as filed with the Securities and Exchange Commission on July 15, 2003, which “Risk Factors” discussion is incorporated by reference in this press release. The forward-looking statements included in this press release represent the Company’s estimates as of the date of this release. The Company specifically disclaims any obligation to update these forward-looking statements in the future. These forward-looking statements should not be relied upon as representing the Company’s estimates or views as of any date subsequent to the date of this press release.

PAREXEL International Corporation
Consolidated Condensed Statement of Operations
(In thousands, except per share data)

			(Unaudited)
			For the three months ended June 30, 2003
			As Reported		Adjustments			Pro-Forma		2002
Service revenue			$	138,090				$	138,090	$	123,577
Reimbursement revenue				26,368					26,368		38,785
	Total revenue			164,458					164,458		162,362
Costs and expenses:
		Direct costs		91,646					91,646		82,803
		Reimbursable out-of-pocket expenses		26,368					26,368		38,785
		Selling, general and administrative		33,867					33,867		26,818
		Depreciation and amortization		5,501					5,501		4,737
		Restructuring expense		3,488		(3,488	)(a)		—		—
Income from operations				3,588		3,488			7,076		9,219
Other income (loss)				1,004					1,004		(2,121	)
Income before income taxes				4,592		3,488			8,080		7,098
Provision for income taxes				1,654		1,256			2,910		2,980
Minority interest				56					56		118
Net income			$	2,882	$	2,232		$	5,114	$	4,000
Earnings per common share:
	Basic		$	0.11	$	0.09		$	0.20	$	0.16
	Diluted		$	0.11	$	0.09		$	0.20	$	0.16
Shares used in computing earnings per common share:
	Basic			25,695		25,695			25,695		25,074
	Diluted			26,157		26,157			26,157		25,690

	(Preliminary)
Balance Sheet Information	June 2003			March 2003			June 2002
Billed accounts receivable, net	$	143,978		$	138,508		$	131,483
Unbilled accounts receivable, net		78,748			82,853			93,230
Deferred revenue		(130,650	)		(134,390	)		(114,723	)
Net receivables	$	92,076		$	86,971		$	109,990
Cash and marketable securities	$	82,724		$	76,130		$	66,109
Working capital	$	134,345		$	129,628		$	138,020
Total assets	$	464,237		$	443,390		$	407,161
Stockholders’ equity	$	227,100		$	219,312		$	200,077
Quarterly Supplemental Financial Data
Total revenue	$	164,458		$	159,162		$	162,363
Investigator fees		21,218			18,578			17,240
Gross revenue	$	185,676		$	177,740		$	179,603
DSO		45			44			56

a) Facilities-related restructuring charge resulting from changes in prior assumptions regarding certain previously abandoned leased facilities.

PAREXEL International Corporation
Consolidated Condensed Statement of Operations
(In thousands, except per share data)

			(Unaudited)
			For the year ended June 30, 2003
			As Reported			Adjustments			Pro-Forma			2002
Service revenue			$	512,054					$	512,054		$	444,318
Reimbursement revenue				107,161						107,161			120,606
	Total revenue			619,215						619,215			564,924
Costs and expenses:
		Direct costs		340,308						340,308			305,923
		Reimbursable out-of-pocket expenses		107,161						107,161			120,606
		Selling, general and administrative		121,111						121,111			100,009
		Depreciation and amortization		20,656						20,656			17,893
		Restructuring expense		9,374			(9,374	)(a)		—			—
Income from operations				20,605			9,374			29,979			20,493
Other income (loss)				(2,118	)					(2,118	)		2,441
Income before income taxes				18,487			9,374			27,861			22,934
Provision for income taxes				7,250			3,375			10,625			9,013
Minority interest				575						575			686
Net income			$	10,662		$	5,999		$	16,661		$	13,235
Earnings per common share:
	Basic		$	0.42		$	0.24		$	0.66		$	0.53
	Diluted		$	0.42		$	0.23		$	0.65		$	0.52
Shares used in computing earnings per common share:
	Basic			25,371			25,371			25,371			24,928
	Diluted			25,683			25,683			25,683			25,582

a) Facilities-related restructuring charges resulting from changes in prior assumptions regarding certain previously abandoned leased facilities.

PAREXEL International Corporation
Segment Information
($ in thousands)

	Three months ended						For the year ended
	June 30,						June 30,
	2003			2002			2003			2002
Clinical Research Services (CRS)
Service revenue	$	84,305		$	72,802		$	312,847		$	261,727
% of total service revenue		61.1	%		58.9	%		61.1	%		58.9	%
Gross profit	$	31,452		$	25,681		$	113,488		$	86,607
Gross margin % of service revenue		37.3	%		35.3	%		36.3	%		33.1	%
The PAREXEL Consulting Group (PCG)
Service revenue	$	24,499		$	26,570		$	100,621		$	97,775
% of total service revenue		17.7	%		21.5	%		19.7	%		22.0	%
Gross profit	$	4,265		$	7,327		$	24,657		$	26,309
Gross margin % of service revenue		17.4	%		27.6	%		24.5	%		26.9	%
Medical Marketing Services (MMS)
Service revenue	$	21,448		$	18,639		$	73,786		$	64,829
% of total service revenue		15.5	%		15.1	%		14.4	%		14.6	%
Gross profit	$	7,057		$	6,326		$	23,957		$	21,365
Gross margin % of service revenue		32.9	%		33.9	%		32.5	%		33.0	%
Perceptive Informatics, Inc. (PII)
Service revenue	$	7,838		$	5,566		$	24,800		$	19,987
% of total service revenue		5.7	%		4.5	%		4.8	%		4.5	%
Gross profit	$	3,670		$	1,440		$	9,644		$	4,114
Gross margin % of service revenue		46.8	%		25.9	%		38.9	%		20.6	%
Total service revenue	$	138,090		$	123,577		$	512,054		$	444,318
Total gross profit	$	46,444		$	40,774		$	171,746		$	138,395
Gross margin % of service revenue		33.6	%		33.0	%		33.5	%		31.1	%