UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-K/A

Amendment No. 1







|x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ------------------------------------------------------------------------------------

For the fiscal year ended June 30, 2010

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | -----------------------------------------------------------------------------------------

For the transition period from  to

Commission File Number: 000-21244





PAREXEL INTERNATIONAL CORPORATION

(Exact name of registrant as specified in its charter)







|                                                               |  |                                        
|-------------------------------------------------------------- |  | ---------------------------------------
|Massachusetts                                                  |  | 04-2776269                             
|(State or other jurisdiction of
incorporation or organization) |  | (I.R.S. Employer
Identification Number)
|                                                               | 
|195 West Street , Waltham, Massachusetts                       |  | 02451                                  
|(Address of principal executive offices)                       |  | (Zip Code)                             

Registrants telephone number, including area code: (781) 487-9900

Securities Registered Pursuant to Section 12(b) of the Act:



|                                       |  |                                           
|-------------------------------------- |  | ------------------------------------------
|Title of each class:                   |  | Name of each exchange on which registered:
|Common Stock, $.01 par value per share |  | Nasdaq Global Select Market               

Securities Registered Pursuant to Section 12(g) of the Act: None





Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities
Act.    Yes  x    No   ̈

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the
Act.    Yes   ̈    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange
Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90
days.    YES  x    NO   ̈.

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File
required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).    Yes   ̈    No   ̈

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained,
to the best of registrants knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.   ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller
reporting company. See definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act.



|                        |  |                                               |  |                           |  |  
|----------------------- |  | --------------------------------------------- |  | ------------------------- |  | -
|Large Accelerated Filer |  | x                                             |  | Accelerated Filer         |  |  ̈
|                        |  |                                               | 
|Non-accelerated Filer   |  |  ̈ (Do not check if smaller reporting company) |  | Smaller Reporting Company |  |  ̈

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).    Yes   ̈    No  x

The aggregate market value of common stock, $.01 par value per share, held by non-affiliates as of December 31, 2009 was approximately $796.5
million based on the closing price of the registrants Common Stock as reported on the Nasdaq Global Select Market on December 31, 2009, the last business day of the registrants most recently completed second fiscal quarter. The
registrant has assumed that all holders of 10% or more of its Common Stock, if any, are affiliates solely for purposes of calculating the aggregate market value of Common Stock held by non-affiliates. As of August 22, 2010 there were 58,484,834
shares of common stock, $.01 par value per share, outstanding.





DOCUMENTS
INCORPORATED BY REFERENCE

Specified portions of the Registrants Proxy Statement for the Annual Meeting of Stockholders to be held
on December 9, 2010 are incorporated by reference into Part III of this report.









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Explanatory Note

PAREXEL International Corporation (the Company) is filing this Amendment No. 1 on Form 10-K/A (the Amendment) to amend the
disclosure under the caption Backlog in Item 1. Business, as set forth in its Annual Report on Form 10-K for the fiscal year ended June 30, 2010 (the Original Filing). Specifically, we are amending the amount
of backlog, as of June 30, 2010, that is anticipated to be recognized as service revenue during the fiscal year ending June 30, 2011. Accordingly, Item 1. Business  for the fiscal year ended June 30, 2010 is amended and
restated in its entirety as set forth below. This Amendment does not affect the Companys financial statements as set forth in the Original Filing. No other information in the Original Filing is amended by this Amendment.

PART I



|ITEM 1. | BUSINESS
|------- | --------

GENERAL

PAREXEL is a leading biopharmaceutical services company, providing a broad range of expertise in clinical research, medical
communications, consulting, and advanced technology products and services to the worldwide pharmaceutical, biotechnology, and medical device industries. Our primary objective is to provide quality solutions for managing the biopharmaceutical product
lifecycle with the goal of reducing the time, risk, and cost associated with the development and commercialization of new therapies. Since our incorporation in 1983, we have developed significant expertise in processes and technologies supporting
this strategy. Our product and service offerings include: clinical trials management, data management, biostatistical analysis, medical communications, clinical pharmacology, patient recruitment, regulatory and product development consulting, health
policy and reimbursement, performance improvement, industry training and publishing, medical imaging services,
ClinPhone® randomization and trial supply management services (RTSM), electronic data capture
systems (EDC), clinical trial management systems (CTMS), web-based portals, systems integration, patient diary applications, and other drug development services. We believe that our comprehensive services, depth of
therapeutic area expertise, global footprint and related access to patients, and sophisticated information technology, along with our experience in global drug development and product launch services, represent key competitive strengths.

Our services complement the research and development (R&D) and marketing functions of pharmaceutical, biotechnology, diagnostics, and
medical device companies. Through our clinical research and product launch services, PAREXEL seeks to help clients maximize the return on their significant investments in research and development by reducing the time, risk, and cost of clinical
development and launch of new products. For large pharmaceutical and biotechnology companies, outsourcing these types of services to PAREXEL provides those companies with a high quality, variable cost alternative to the fixed costs associated with
internal drug development. In addition, these large companies can benefit from PAREXELs technical resource pool, broad therapeutic area expertise, other advisory services, and global infrastructure, all of which are designed to expedite
parallel, multi-country clinical trials and accelerate time-to-market. For smaller companies, PAREXEL provides access to expertise and a virtual and global network that enables them to develop their new drugs. Our vision is to integrate and build
critical mass in the complementary businesses of clinical research, medical communications, drug development and process optimization consulting, as well as related information technology products and integration services. Our goal is to provide
significant benefits to sponsor clients through this strategy, namely, a faster and less expensive development and launch process, as well as a clinical development strategy and expertise that support the marketing strategy for new medical products.
We believe that the outsourcing of these services has increased in the past and should continue to increase in the future because of several factors, which are placing increased pressure on clients. These factors include the need to more tightly
manage costs, capacity limitations, reductions in exclusivity periods, the desire to speed up patient recruitment and reduce development time, increased globalization of clinical trials, productivity issues, upcoming patent expirations, more
stringent government regulations, and pricing pressure. With increased levels of investment continuing to be required and with development times being extended, we believe these trends will continue to create opportunities for companies like PAREXEL
that are focused on improving the efficiency of the drug development process. Moreover, many of our clients are reassessing how they conduct their R&D activities and are now engaging in outsourcing at a more strategic level. One consequence of
this reassessment is that they have started to concentrate their outsourced clinical development activities with a smaller number of providers. We believe that our broad range of offerings, our global presence, our information technology solutions,
and our expertise in clinical drug development well position us to participate in these strategic partnerships.



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PAREXEL is one of the largest biopharmaceutical services companies in the world, based upon annual service
revenue. Headquartered near Boston, Massachusetts, we manage 70 locations and have approximately 9,720 employees throughout 54 countries around the world. We have operations in major healthcare markets around the world, including the United States
(U.S.), Canada, China, Taiwan, Japan, Singapore, Korea, Malaysia, the Philippines, Thailand, Indonesia, Germany, the United Kingdom (U.K.), France, Italy, Spain, Sweden, Australia, South Africa, Argentina, Brazil, Peru,
Chile, Mexico, Israel, Norway, Belgium, The Netherlands, Denmark, Finland, India, Russia, Poland, the Czech Republic, Lithuania, Hungary, Croatia, Serbia, Romania, and Ukraine. During Fiscal Year 2010, we derived 65.4% of our service revenue from
international operations and 34.6% from the United States. Breakdowns of service revenue by geographic region for previous years can be found in Note 16 to the consolidated financial statements included in Item 8 of this annual report. PAREXEL
was incorporated in 1983 as a regulatory affairs consulting firm and is a Massachusetts corporation. Josef H. von Rickenbach, Chairman of the Board and Chief Executive Officer of PAREXEL, was a co-founder. Since our inception, we have executed a
focused growth strategy embracing internal expansion as well as strategic acquisitions to expand or enhance our portfolio of services, geographic presence, therapeutic area knowledge, information technology capabilities, and client relationships.

Acquisitions have been, and may continue to be, an important component of PAREXELs growth strategy. In August 2008, we completed the
acquisition of ClinPhone plc (ClinPhone), a London Stock Exchange-traded company incorporated in England and Wales, for approximately $190 million. ClinPhones strong clinical technology offering was combined with our Perceptive
Informatics business segment to provide an extensive line of products and services throughout the entire clinical development lifecycle. Biopharmaceutical companies have increasingly requested technology solutions and expertise to support the full
range of clinical development activities while improving the speed and efficiency of clinical programs. We believe that the broad technological offering that we now provide gives clients a stronger, more comprehensive suite of clinical information
technologies.

On February 11, 2008, our Board of Directors approved a two-for-one stock split. The record date for the stock split was
February 22, 2008. The stock split was completed on March 3, 2008. All share and per share amounts for all periods presented have been adjusted to reflect the effect of this stock split.

DESCRIPTION OF BUSINESS

We provide a
broad range of expertise in clinical research, medical communications, consulting and informatics and advanced technology services to the worldwide pharmaceutical, biotechnology, and medical device industries. We manage the company in three business
segments: Clinical Research Services (CRS), PAREXEL Consulting and Medical Communications Services (PCMS), and Perceptive Informatics (Perceptive).

CRS constitutes our core business and includes all phases of clinical research from first-in-man trials, where a medicinal entity is tested
on human subjects for the first time, through post-marketing studies, after approval by the presiding regulatory body (for example, FDA, EMEA or others). CRS service offerings include clinical trials management and biostatistics, data management,
clinical logistics, and clinical pharmacology, as well as related medical advisory, patient recruitment, and investigator site services.

PCMS
provides technical expertise and advice in such areas as drug development, regulatory affairs, and good manufacturing practice (GMP) compliance consulting. In addition, PCMS provides a full spectrum of market development, product
development, and targeted communications services in support of product launch. PCMS consultants also identify alternatives and propose solutions to address clients product development, registration, and commercialization issues. Additionally,
PCMS provides reimbursement and market access (RMA) services.

Perceptive provides information technology solutions designed to
improve clients product development processes. Perceptives portfolio of products and services includes medical imaging services, ClinPhone RTSM, CTMS, EDC, web-based portals, systems integration, and patient diary applications.

The revenue generated by each of our business segments for each of the last three fiscal years is described below under the headings for each
segment. The gross profit of each segment for each of the last three fiscal years are described in Note 17 to the consolidated financial statements included in Item 8 of this annual report.

CLINICAL RESEARCH SERVICES (CRS)

Our
CRS business segment provides clinical trials management and biostatistics, data management and clinical pharmacology, as well as related medical advisory and investigator site services. This segment generated revenue of $870.7 million, or 77.0%, of
our consolidated service revenue in Fiscal Year 2010, $804.2 million, or 76.5%, of our consolidated service revenue in Fiscal Year 2009, and $745.6 million, or 77.3%, of our consolidated service revenue in Fiscal Year 2008.



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Our CRS business segment offers complete services for the design, initiation and management of clinical
trials programs, a critical element in obtaining regulatory approval for biopharmaceutical products. We have performed services in connection with trials in most therapeutic areas, including Oncology, Cardiology, Infectious Diseases, Neurology,
Allergy/Immunology, Endocrinology/Metabolism, Gastroenterology, Obstetrics/Gynecology, Orthopedics, Pediatrics, Psychiatry, and Transplantation. Our multi-disciplinary clinical trials group examines a products existing preclinical and clinical
data to design clinical trials to provide evidence of the products safety and efficacy.

Our CRS business segment can manage many
aspects of clinical trials including: study and protocol design; Case Report Form (CRF) design of paper or electronic questionnaires used in clinical research; site and investigator recruitment; patient enrollment; study monitoring and
data collection; data analysis; report writing; and medical services.

Clinical trials are monitored and conducted by CRS in adherence with
Good Clinical Practice (GCP). The design of efficient CRFs, detailed operations manuals, and site monitoring by our clinical research associates seek to ensure that clinical investigators and their staff follow established study
protocols. We have adopted standard operating procedures that are intended to satisfy regulatory requirements and serve as a tool for controlling and enhancing the quality of our worldwide clinical services.

Clinical trials represent one of the most expensive and time-consuming parts of the overall biopharmaceutical product development process. The
information generated during these trials is critical to gaining marketing approval from the United States Food and Drug Administration (the FDA), the European Medicines Agency based on the recommendation of the Committee for Medicinal
Products for Human Use, and other comparable regulatory agencies as well as market acceptance by clinicians, patients, and third-party payors. CRS clinical trial management services involve many phases of clinical trials, including Phases I, II,
III, and IV. See Government Regulations below for additional information regarding processes involved in clinical trials.

Early Phase The Early Phase group of CRS encompasses the early stages of clinical testing, when a product is first evaluated to assess the
potential safety and efficacy of the product. These tests vary from first-in-man to dose-ranging to proof of concept studies in Phases I and IIa of development. The Early Phase group of CRS offers clients a
one-stop service where studies are performed in healthy volunteers as well as in patients of various disease populations. The support services include project and program management, drug development consulting, medical writing, handling of
investigational products, data management, biostatistical and bioanalytical services. Our international network of Early Phase operations includes operations in Berlin, Germany; Baltimore, Maryland (U.S.); Glendale, Culver City and Paramount,
California (U.S.); Bloemfontein, George and Port Elizabeth, South Africa; and Harrow, U.K. The bioanalytical laboratory which performs drug analyses in accordance with Good Laboratory Practices (GLP), a system of managed controls for
laboratory and research organizations to ensure the consistency and reliability of results, is located in Bloemfontein. With these locations, the Early Phase group offers clinical pharmacology services (including bioanalytical services) with a total
of 580 dedicated beds (cooperating partners not included) on three continents.

Phase II-III/PACE -The Phase II-III/Peri Approval
Clinical Excellence (PACE) group of CRS (formerly referred to as Late Phase) encompasses the later stages of clinical testing. Through this CRS unit, we assist clients with one or more of the following aspects of clinical
trials as described below. CRS performs both full-service and single- or multi-service trials. As a result, our involvement may range from being involved in just one aspect of a clinical trial to all aspects of a clinical trial. These services
include the following, the majority of which are also provided by our Early Phase group:



| |  |  | Study Protocol Design The protocol defines, among other things, the medical issues a study seeks to examine and the statistical
tests that will be conducted. Accordingly, the protocol specifies the frequency and type of laboratory and clinical measures that are to be tracked and analyzed, the number of patients required to produce a statistically valid result, the period of
time over which they must be tracked and the frequency and dosage of drug administration. The studys success depends on the protocols ability to predict correctly the requirements of the regulatory authorities and to generate data that
will satisfy those requirements.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | CRF Design Once the study protocol has been finalized, a CRF must be developed. The CRF is the critical source document for
collecting the necessary clinical data as dictated by the study protocol. It may change at different stages of a trial. CRFs for one patient in a given study may consist of 100 or more pages.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Site and Investigator Recruitment The product under investigation is administered to patients usually by third-party physicians,
serving as independent contractors, referred to as investigators, at hospitals, clinics, or other locations, referred to as clinical sites. Medical devices are implemented or tested by investigators in similar settings. Potential investigators may
be identified and solicited by the product sponsor. A significant portion of a trials success depends on the successful identification and recruitment of experienced investigators with an adequate base of patients who satisfy the requirements
of the study protocol. We have access to several thousand investigators who have conducted clinical trials for us. We provide additional services at the clinical investigator site to assist physicians and expedite the clinical research process.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | Patient Enrollment The investigators, usually with our assistance, find and enroll patients suitable for the study. The speed with
which trials can be completed is significantly affected by the rate at which patients are enrolled. Prospective patients are required to review information about the drug and its possible side effects, and sign an informed consent form to record
their knowledge and acceptance of potential side effects. Patients also undergo a medical examination to determine whether they meet the requirements of the study protocol. Patients then receive the investigational product or a control (for example,
a placebo) and are examined by the investigator as specified by the study protocol. Investigators are responsible for administering the products to patients, as well as examining patients and conducting necessary tests.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Study Monitoring and Data Collection As patients are examined and tests are conducted in accordance with the study protocol and
applicable regulatory requirements, data are recorded on CRFs, either electronically or paper-based. CRFs are transmitted electronically from study sites or collected by specially trained persons known as clinical monitors. Monitors visit sites
regularly to ensure that the CRFs are completed correctly and to verify that the study has been conducted in compliance with the protocol and GCP. The monitors send completed CRFs to the study coordination site, where the CRFs are reviewed for
consistency and accuracy before their data are entered into an electronic database. We offer several EDC technologies, which significantly enhance both the quality and timeliness of clinical data capture and collection while achieving significant
efficiency savings. Our study monitoring and data collection services are designed to comply with the adverse events reporting guidelines and related regulatory requirements of the FDA and other relevant regulatory agencies. As much as 90% of new
trials are EDC-based.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Data Management Our data management professionals provide a broad array of services to support the accurate collection,
organization, validation, and analysis of clinical data. For instance, they assist in the design of CRFs and investigator training manuals to ensure that data are collected in an organized and consistent format in compliance with the study protocol
and all applicable regulatory requirements. Databases are designed according to the analytical specifications of the project and the particular needs of the client. Prior to data entry, our personnel screen the data to detect errors, omissions, and
other deficiencies in completed CRFs. The use of scanning and imaging of the CRFs and the use of EDC technologies to gather and report clinical data expedites data exchange while minimizing data collection errors by permitting the verification of
data integrity in a more timely manner. After the data is entered, the data management team performs an array of data abstraction, data review, medical coding, serious adverse event reconciliations, loading of electronic data (such as laboratory
data), database verification, and editing and resolution of data problems. The data is then submitted to the sponsor in a customized format prescribed by the sponsor. Our CRS business segment has extensive experience throughout the world in the
creation of scientific databases for all phases of the drug development process, including the creation of customized databases to meet client-specific formats, integrated databases to support new drug application (NDA) and equivalent
submissions and databases created and maintained in compliance with FDA, European, Asian and other regulatory specifications and requirements.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Biostatistics and Programming Our biostatistics professionals assist clients with all phases of drug development, including
biostatistical consulting, database design, data analysis, and statistical reporting. These professionals develop and review protocols, design appropriate analysis plans, and design report formats to address the objectives of the study protocol as
well as the clients individual objectives. Working with programming staff, biostatisticians perform appropriate analyses and produce tables, graphs, listings, and other applicable displays of results according to an analysis plan. Our CRS
business segment biostatisticians may also represent clients during panel hearings at the FDA and other regulatory agencies.
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| |  |  | Report Writing A description of the study conducted, along with the statistical analysis of data collected during the trial and
other clinical data are presented and summarized in a final report generated for inclusion in a regulatory document. We assist clients with writing reports for inclusion in these documents.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Medical Services Throughout the course of a development program, our physicians provide a wide range of medical research and
consulting services to improve the efficiency and quality of clinical research, including medical supervision of clinical trials, medical monitoring of patient safety, review and reporting of adverse events, medical writing, and strategy and product
development. Our medical services professionals also provide lifecycle drug safety services combining operational pharmacovigilance and pharmacovigilance consulting. Operational pharmacovigilance capabilities cover all phases of clinical development
and drug safety for marketed products.
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| |  |  | Project Management Throughout the entire spectrum of activities described above, our CRS segment provides project management
services. These services entail providing overall leadership to our project team, acting as the main client liaison, project planning, managing progress against study goals and deliverables, budget management, progress and metrics reporting, and
issue resolution. These project management services are offered on all types of trials  single-service, multi-service, or full-service.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Clinical Logistics In association with the clinical trials we conduct, we offer a full range of clinical logistics services that
include coordinating investigational drug supply manufacturing, managing import/export requirements, labeling, warehousing, distribution, and inventory control (including the return and destruction of unused trial medication, lab services, and
ancillary supplies).
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PAREXEL CONSULTING AND MEDICAL COMMUNICATIONS SERVICES (PCMS)

Our PCMS segment provides technical expertise and advice in such areas as drug development, regulatory affairs, reimbursement, and GMP compliance. It also
provides a full spectrum of market development, product development, and targeted communications services in support of product launch. Our PCMS consultants identify alternatives and propose solutions to address client issues associated with product
development, registration, and commercialization. Our PCMS unit also provides RMA consulting services. Service revenue from the PCMS business segment represented $121.6 million, or 10.8%, of consolidated service revenue in Fiscal Year 2010, $121.8
million, or 11.6%, of consolidated service revenue in Fiscal Year 2009, and $129.8 million, or 13.5%, of consolidated service revenue in Fiscal Year 2008. We conduct our PCMS operations through four groups:



| |  |  | Integrated Product Development Consulting,
| | - |  | ------------------------------------------



| |  |  | Strategic Compliance Consulting,
| | - |  | --------------------------------



| |  |  | Medical Communications Services, and
| | - |  | ------------------------------------



| |  |  | Reimbursement & Market Access.
| | - |  | ------------------------------

Integrated Product Development Consulting Our Integrated Product Development (IPD) consulting group provides comprehensive
product development and regulatory consulting services for pharmaceutical, biotechnology, and medical device companies in major jurisdictions in the U.S., Europe, Japan and emerging markets in Asia, Middle East and North Africa, and Latin America.
These services include drug and device development and regulatory strategy design, scientific and technical evaluation, writing and review services, regulatory application (both for clinical trials and for marketing authorizations in dozens of
countries) preparation and review, regulatory training for client personnel, and expert liaison with the FDA and other regulatory agencies around the world. Our IPD consulting group works closely with clients to design product development and
regulatory strategies and comprehensive registration programs. Our product development and regulatory experts include individuals who have joined us from the biopharmaceutical industry and regulatory agencies such as the FDA and agencies in the UK,
Germany, The Netherlands, and France. Our experts review existing published literature and regulatory precedents, evaluate the scientific and technical data of a product, assess the competitive and regulatory environment, identify deficiencies, and
define the steps necessary to obtain regulatory approvals in the most expeditious manner. Through these services, we help our clients obtain regulatory approval for particular products or product lines in markets around the world.

Strategic Compliance Consulting  Our Strategic Compliance group offers a range of specialized clinical and manufacturing consulting services
for clients in the life sciences industry. These services are designed to help pharmaceutical, biotechnology, and medical device companies achieve and maintain regulatory compliance, product quality, and process excellence. These services include
clinical and manufacturing compliance strategy, assistance with regulatory agency enforcement issues, risk management, GCP, GLP and current GMP audits, pre-approval inspection readiness, process optimization, organizational alignment, and training.
Our Strategic Compliance group offers its clients experienced regulatory and industry professionalsformerly from the FDA, or from the Quality Departments of major biotech, pharmaceutical, and medical device companies.

Medical Communications Services Our Medical Communications Services (MedCom) group assists biopharmaceutical clients in their
efforts to achieve optimal market penetration for their products worldwide through expert medical communications and publications services. MedCom utilizes its expertise in strategic consultancy, market and competitive landscaping, publications
planning, scientific writing, managed markets, and regulatory compliance to provide effective and compliant scientific communications to a diverse audience of provider, payer, and patient advocacy group stakeholders. An integrated communications
plan can detail external and internal strategies, including communications objectives, target audiences, communications priorities and timing, key messages, key meetings and events, and target publications and media. MedCom supports marketing
communication objectives across a broad spectrum of media from publications through interactive technologies. Other services include planning of meetings and exhibits in premier scientific meetings and symposia.



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Reimbursement & Market Access Our Reimbursement and Market Access (RMA)
group offers clients the ability to understand how changing marketplace dynamics may impact product reimbursement, patient access and commercial success. Our professionals assist biopharmaceutical and medical device companies in developing
reimbursement strategies and tactical programs to support products during all phases of development. Our services are designed to provide workable solutions to complex challenges clients face based on emerging payer policy. We provide services in
the areas of comparative effectiveness, cost effectiveness analysis, dossier development, budget impact modeling, and public, private and managed markets strategy development. Our services also include designing and implementing reimbursement
support help lines and patient assistance programs.

PERCEPTIVE INFORMATICS (PERCEPTIVE)

Our Perceptive segment provides information technology solutions designed to improve the product development processes of our clients. Perceptives
portfolio of products and services include medical imaging services, ClinPhone RTSM, CTMS, EDC, web-based portals, systems integration, and patient diary applications. Service revenue from the Perceptive business represented $138.7 million, or
12.2%, of consolidated service revenue in Fiscal Year 2010, $124.7 million, or 11.9%, of consolidated service revenue in Fiscal Year 2009, and $88.8 million, or 9.2%, of consolidated service revenue in Fiscal Year 2008.

Through the acquisition of ClinPhone in August 2008, Perceptive became one of the industrys largest clinical technology providers. Perceptive
offers broad and comprehensive access to clinical information technologies and resources, providing clients and service providers with the benefits of an extensive line of products and services throughout the entire clinical development lifecycle.

ClinPhone Randomization & Trial Supply Management (ClinPhone RTSM) Perceptive provides automated randomization and
logistics management through its ClinPhone RTSM solutions. Our services include both Interactive Voice Response (IVR) and Interactive Web Response (IWR) technologies.

ClinPhone RTSM solutions have been used in over 2,800 clinical trials, helping our clients achieve treatment group balance, eliminate selection bias, and
limit the predictability of treatment allocations. This is all designed to comply with the latest regulatory requirements. ClinPhone RTSM allows effective real-time implementation of randomization algorithm modifications required for adaptive trial
designs.

Medical Imaging Services  Perceptive offers products and services that allow our clients to apply and manage medical
imaging in clinical trials. Clinical study sponsors increasingly rely on imaging as a surrogate endpoint in support of efficacy and safety. Our therapeutic and imaging experts provide a range of capabilities in the application of imaging techniques
from early clinical development through peri-approval studies. These services include:



| |  |  | Standardization of imaging and image management at investigative sites
| | - |  | ----------------------------------------------------------------------



| |  |  | Image collection at a central location and management of the blinding process
| | - |  | -----------------------------------------------------------------------------



| |  |  | Development of independent review charters for review and approval by regulatory authorities
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| |  |  | Subcontracting independent reviewers and training these reviewers on the assessment criteria and reviewer roles and responsibilities
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Management of the logistical processes involved in the independent review
| | - |  | -------------------------------------------------------------------------

Clinical Trial Management System (CTMS)  We offer CTMS solutions to assist biopharmaceutical companies with the complex process of planning
and managing clinical trials. The two software packages that we provide are the IMPACT® and TrialWorks Clinical Trail Management Systems. The IMPACT solution provides top global pharmaceutical companies with a flexible solution that
includes breadth and depth of features, while the TrialWorks solution is particularly well-suited to the emerging biopharmaceutical companies that demand rapid implementation and low cost.

Electronic Data Capture (EDC)  DataLabs® EDC is one of the industrys first single data management systems that unifies the
functionality of paper data entry (PDE) with the flexibility of electronic data capture (EDC). DataLabs EDC is able to combine data collected on paper with data collected electronically into one easy-to-use electronic clinical data management
platform. The collected information feeds into a single database providing clients with fully integrated data. With DataLabs EDC, users are able to design a study, collect data using either method and then clean and manage that data using a single
system. DataLabs EDC is based on Microsoft® connected technology and servers, providing end-users with an intuitive, familiar, and easy-to-use experience.



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Electronic Patient Reported Outcomes (ePRO) Patient self-reported data is increasingly playing
a key part in efficacy and quality of life assessment, patient recruitment, symptom and safety information and medical compliance monitoring. Our ePRO solutions provide the flexibility to choose between the most commonly used ePRO methods, IVR, Web,
PDA and Tablet:



| |  |  | IVR (Interactive Voice Response)  Our leading IVR platform enables ePRO delivery using the subjects own telephone, making it highly
cost-effective and simple to deploy;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Web/IWR (Interactive Web Response)  The web offers all of the advantages and benefits of IVR as subjects use any PC connected to the Internet to
securely access the ePRO application; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | PDA/Tablet  Depending on the specific characteristics of the protocol, a device-based solution may be best suited for a study.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------

E-Clinical Technology Services (eCTS)  Perceptive provides leading solutions to integrate systems and
processes to help companies simplify the concurrent use of the multiple technologies involved in clinical trials. Perceptives integrations are delivered by our dedicated eCTS experts who have an in-depth understanding of advanced technologies,
clinical development processes and validated system integrations.

Perceptives integration solutions and services include our Clinical
Technology Integration Platform (CTIP), which is a unique environment designed to facilitate seamless two-way exchange of data across different systems via reliable and repeatable integrations. Through our CTIP and dedicated eCTS staff, we can
support most integration requirements including validated integrations between our hosted products and key third-party hosted technology solutions.

E-Clinical Suite  Perceptive offers an eClinical suite that is the unique combination of our leading products and services: Perceptive
Portal, DataLabs® EDC, ClinPhone® RTSM, IMPACT® and TrialWorks CTMS applications, and ePRO and medical imaging services. We deliver applications that seamlessly integrate and tightly interoperate to increase value and utility
to our clients.

INFORMATION TECHNOLOGY

We are committed to investing in information technology designed to help us to provide high quality services, competitive, and cost-effective,
client-facing solutions and well-managed internal resources. We have built our information technology solutions by developing proprietary technology as well as purchasing and integrating commercially available information technology solutions that
address critical aspects of our business, such as project proposals/budget generation, time information management, revenue and resource forecasting, clinical data entry and management, clinical trial management, project management, quality
management, and procurement/expense processing.

We maintain an internal information technology group that is responsible for technological
planning, applications development, program management, technical operations, and management of our worldwide computer infrastructure and voice and data networks. Our information systems are designed to function in support of and reinforce all of
our policies and procedures while enabling us to respond to the multiple needs of our different clients and regulatory systems. Our systems also enable us to respond quickly to client inquiries regarding progress on projects and, in some cases, to
gain direct access to client data on client owned systems.

SALES AND MARKETING

Our sales and marketing personnel carry out our global business development activities. In addition to significant selling experience, most of these
individuals have technical and/or scientific backgrounds. Our senior executives and project team leaders also participate in maintaining key client relationships and engaging in business development activities.

Each of our three business segments has a business development team that focuses on its particular market segment. While all teams may work with the same
client companies, the individual clients they work with within PAREXEL can vary. In many cases, however, the business segment selling teams work together in order to provide clients with the most appropriate service offering to meet their needs.
Moreover, we have developed strategic account management teams to provide clients with a single point of contact and to facilitate cross-selling opportunities.

Each business development employee is generally responsible for a specific client segment or group of clients and for strengthening and expanding an
effective relationship with that client. Each individual is responsible for developing his or her client base on our behalf, responding to client requests for information, developing and defending proposals, and making presentations to clients.

Our business development group is supported by our marketing team. Our marketing activities consist primarily of market information
development and analysis, strategic planning, competitive analysis, brand management, collateral development, participation in industry conferences, advertising, e-marketing, publications, and website development and maintenance. The marketing team
focuses both on supporting the individual business development teams for their specific market segments as well as promoting an integrated marketing strategy and communications plan for PAREXEL as a whole.



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CLIENTS

We have in the past derived, and may in the future derive, a significant portion of our service revenue from a core group of major projects or clients.
Concentrations of business in the biopharmaceutical services industry are common and we expect to continue to experience such concentration in future years. Our five largest clients accounted for 27%, 28% and 31% of our consolidated service revenue,
for the three fiscal years ending on June 30, 2010, 2009, and 2008, respectively. No single client accounted for 10% or more of consolidated service revenue in any of Fiscal Years 2010, 2009 or 2008. However, we expect that client
concentrations will rise in the future in conjunction with our increasing number of strategic partnerships.

BACKLOG

Backlog represents anticipated service revenue from work not yet completed or performed under signed contracts, letters of intent, and, in some cases,
verbal commitments which are supported by written communications. Once work commences, revenue is generally recognized over the life of the contract as services are provided. Backlog at June 30, 2010 was $2,680.5 million, compared with $2,176.4
million at June 30, 2009. Subject to the matters addressed in the following paragraph, we anticipate that approximately $1.0 billion of the backlog as of June 30, 2010 will be recognized as service revenue in Fiscal Year 2011.

We believe that our backlog as of any date is not necessarily a meaningful predictor of future results. Projects included in backlog are subject to
termination, revision, or delay. As detailed more fully in the Risk Factors section of this annual report, clients terminate, delay, or change the scope of projects for a variety of reasons including, among others, the failure of
products being tested to satisfy safety requirements, unexpected or undesirable clinical results of the product, clients decision to forego a particular study, insufficient patient enrollment or investigator recruitment, or production problems
resulting in shortages of the drug. Additionally, we have been entering into an increasing number of strategic partnerships. As a result, we may see an increased number of delays and/or cancellations impacting the conversion of backlog into revenue.
This trend may continue in the future. Generally, our contracts can be terminated upon thirty to sixty days notice by the client. We are typically entitled to receive certain fees and, in some cases, a termination fee for winding down a delayed or
terminated project.

COMPETITION

We compete with other biopharmaceutical services companies and other clinical research organizations (CROs) that provide one or more of the
services currently being offered by us. Some of the larger biopharmaceutical services companies, such as Quintiles Transnational Corporation, Covance Inc., Pharmaceutical Product Development Inc., Kendle International Inc., and Icon plc, offer
services that compete directly with our services at many levels.

We believe that the synergies arising from integrating the products and
services offered by our different business units, coupled with our global infrastructure (and resulting rapid access to diverse patient populations), technology products and services, and depth of expertise and experience differentiate us from our
competitors. Although there are no guarantees that we will continue to do so, we believe that we compete favorably in all of our business areas and segments, as more fully described below:

CRS

The clinical
outsourcing services industry is very fragmented, with several hundred providers offering varying levels of service, skills, and capabilities. Our CRS group primarily competes against in-house departments of pharmaceutical companies, other full
service biopharmaceutical services companies, small specialty CROs, and to a small extent, universities, teaching hospitals, and other site organizations. The primary competitors for our CRS business include Quintiles Transnational Corporation,
Covance Inc., Pharmaceutical Product Development Inc., Kendle International Inc., and Icon plc.

CRS generally competes on the basis of:



| |  |  | a broad international presence with strategically located facilities;
| | - |  | ---------------------------------------------------------------------



| |  |  | the ability to organize and manage large-scale clinical trials on a global basis;
| | - |  | ---------------------------------------------------------------------------------



| |  |  | the ability to recruit investigators and patients expeditiously;
| | - |  | ----------------------------------------------------------------



| |  |  | medical and scientific expertise in a specific therapeutic area;
| | - |  | ----------------------------------------------------------------



| |  |  | quality of services;
| | - |  | --------------------



| |  |  | breadth of services;
| | - |  | --------------------



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| |  |  | the ability to integrate information technology with systems to improve the efficiency of clinical research;
| | - |  | ------------------------------------------------------------------------------------------------------------



| |  |  | previous experience with a client or a specific therapeutic area;
| | - |  | -----------------------------------------------------------------



| |  |  | the ability to manage large and complex medical databases;
| | - |  | ----------------------------------------------------------



| |  |  | the ability to provide statistical and regulatory services;
| | - |  | -----------------------------------------------------------



| |  |  | financial strength and stability; and
| | - |  | -------------------------------------



| |  |  | price.
| | - |  | ------

We believe
CRSs key competitive strengths are its global footprint and related rapid access to diverse patient populations, therapeutic expertise, technological expertise and its experience in global drug development.

PCMS

Our PCMS
segment competes with a large and diverse group of specialty service providers, including major consulting firms with pharmaceutical industry practices, large and small biopharmaceutical services companies, individual consultants, specialty medical
communications services companies, and medical communication subsidiaries of large international advertising companies.

We believe that a
central feature of our PCMS service offering is our combination of scientific, regulatory and business expertise. We consider PCMSs key competitive strengths to include a combination of deep expertise in early stage drug development,
regulatory strategy and submissions, GMP compliance, business process optimization, reimbursement and market access, and global marketing and communications strategies. We believe that this broad range of capabilities enables us to help our clients
get the right product to market in an efficient and effective manner.

PERCEPTIVE

Our Perceptive business competes primarily with biopharmaceutical services companies, information technology companies, and software companies. Companies
in this segment compete based on the strength and usability of their technology offerings, their expertise and experience, and their understanding of the clinical development process. Perceptives key competitive strength is its combination of
technological expertise and knowledge of clinical development that was enhanced by the acquisition of ClinPhone in August 2008. Additionally, Perceptives offerings provide substantial synergies to our CRS services.

INTELLECTUAL PROPERTY

Our trademark
PAREXEL, is of material importance to us. This and other trademarks have been registered in the U.S. and many foreign countries. The duration of trademark registrations varies from country to country. However, trademarks generally may be
renewed indefinitely as long as they are in use and/or their registrations are properly maintained, and as long as they have not been found to have become generic.

EMPLOYEES

As of June 30, 2010, we
had 9,720 full-time equivalent employees. Approximately 28.1% of the employees are located in North America and approximately 71.9% are located throughout Europe, Asia/Pacific, Africa, and South America. We believe that we have good relationships
with our employees.

The success of our business depends upon our ability to attract and retain qualified professional, scientific, and
technical staff. The level of competition among employers in the U.S. and overseas for skilled personnel, particularly those with Ph.D., M.D., or equivalent degrees, is high. We believe that our name recognition and our multinational presence, which
allows for international transfers, are an advantage in attracting employees. In addition, we believe that the wide range of clinical trials in which we participate allows us to offer broad experience to clinical researchers.

GOVERNMENT REGULATIONS

We provide
clinical trial and diverse consulting services to the pharmaceutical, biotechnology, and medical device industries. Lack of success in obtaining approval for the conduct of clinical trials in the countries where we manage clinical trials on behalf
of our clients can adversely affect us. We make no guarantees to our clients with regard to successful outcomes of the regulatory process, including the success of clinical trial applications or marketing authorization applications.

Clinical research services provided by PAREXEL in the U.S. are subject to ongoing FDA regulation. We are obligated to comply with FDA requirements
governing activities such as obtaining institutional review board (IRB) approval and patient informed consents, verifying qualifications of investigators, reporting patients adverse reactions to products, and maintaining



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thorough and accurate records. We are also required to ensure that the computer systems we use to process human data from clinical trials are validated in accordance with the FDAs
electronic records regulations, 21 CFR. Part 11, which apply to the pharmaceutical and CRO industries when companies choose to use electronic records in lieu of paper records or electronic signatures in lieu of traditional signatures. We must
maintain source documents for each study for specified periods, and such documents may be reviewed according to GCP standards by the study sponsors and the FDA and other agencies (for example the EMA, European Medicines Agency) during audits and
inspections. Non-compliance with GCP can result in the disqualification of data collected during a clinical trial and in non-approval or non-clearance of a product application submitted to the FDA or other agencies around the world.

The clinical investigation of new drugs, biologics, and medical devices is highly regulated by government agencies around the world. The standard for the
conduct of clinical research and development studies is embodied in GCP, a set of international standards and guidelines which stipulate procedures designed to ensure the quality and integrity of data obtained from clinical testing, and to protect
the rights and safety of clinical trial participants. The FDA and many other regulatory authorities require that study results submitted to such authorities be based on studies conducted in compliance with GCP. Effective May 1, 2004, the
European Union (EU) enacted the Clinical Trials Directive (the Directive or CTD) in an attempt to harmonize the regulatory requirements of the member states of the EU for the conduct of clinical trials in its
territory. The Directive requires sponsors of clinical trials to submit formal applications to national ethics committees and regulatory authorities prior to the initiation of clinical trials in any of the 27 Member States of the EU. Whereas some
Member States, prior to the implementation of the Directive, had minimal requirements for clinical trial initiation, all Member States are now subject to the same stringent requirements of the Directive. As in the United States, clinical trials in
the EU are expected to be carried out in compliance with detailed requirements for GCP. The international regulatory approval process, in the EU as well as many other countries, includes all of the risks and potential delays associated with the FDA
approval process.

Because the FDAs regulatory requirements have served as the model for much of the regulation of new drug development
worldwide, regulatory requirements similar to those of the FDA exist in the other countries in which we operate. Our regulatory capabilities include knowledge of the specific regulatory requirements of numerous countries. We have managed
simultaneous regulatory submissions in more than one country for a number of drug sponsors during each of the past ten years. Beginning in 1990, the FDA and corresponding regulatory agencies of the EU and Japan commenced discussions to develop
harmonized standards for preclinical and clinical studies and the format and content of applications for new drug approvals through a process known as the International Conference on Harmonisation (ICH) of Technical Requirements for
Registration of Pharmaceuticals for Human use. Data from multinational studies adhering to GCP are now generally acceptable to the FDA and regulators in Canada, the EU and Japan. The ICH process has sanctioned a single common format for drug and
biologic marketing authorization applications, known as the Common Technical Document (CTD) in the U.S., Europe, Japan and Canada. On July 1, 2003 the CTD format became mandatory in Europe and Japan and highly recommended by the FDA
in the U.S. and by Canadian regulatory authorities. We have developed the expertise to prepare CTDs for our clients in both paper and electronic form.

REGULATION OF DRUGS AND BIOLOGICS

Before a new drug or biologic may be approved and marketed, the drug or biologic must undergo extensive testing and regulatory review in order to
determine that the drug or biologic is safe and effective. It is not possible to estimate the time in which preclinical and Phase I, II and III studies will be completed with respect to a given product, although the time period may last many years.
Using the U.S. regulatory environment as an example, the stages of this development process are generally as follows:

Preclinical Research
(approximately 1 to 3.5 years) - In vitro (test tube) and animal studies must be conducted in accordance with GLP to establish the relative toxicity of the drug or biologic over a wide range of doses and to detect any potential to
cause a variety of adverse conditions or diseases, including birth defects or cancer. If results warrant continuing development of the drug or biologic, the results of the studies are submitted to the FDA by the manufacturer as part of an
Investigational New Drug Application (IND), which must be reviewed by the FDA before proposed clinical testing can begin. An IND must include, among other things, preclinical data, chemistry, manufacturing and control information, and an
investigational plan, and must become effective before such trials may begin. An IND automatically becomes effective 30 days after receipt by the FDA, unless the FDA, within the 30-day time period, raises concerns or questions relating to one or
more proposed clinical trials. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. As a result, there can be no assurance that submission of an IND will result in the ability to
commence clinical trials.



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Clinical Trials (approximately 3.5 to 6 years)

Phase I consists of basic safety and pharmacology testing in approximately 20 to 80 human subjects, usually healthy volunteers or stable patients, and
includes studies to evaluate the metabolic and pharmacologic action of the product in humans, how the drug or biologic works, how it is affected by other drugs, how it is tolerated and absorbed, where it goes in the body, how long it remains active,
and how it is broken down and eliminated from the body.

Phase II includes basic efficacy (effectiveness) and dose-range testing in a limited
patient population (usually 100 to 200 patients) afflicted with a specific disease or condition for which the product is intended for use, further safety testing, evaluation of effectiveness, and determination of optimal dose levels, dose schedules,
and routes of administration. If Phase II studies yield satisfactory results and no hold is placed on further studies by the FDA, Phase III studies can commence.

Phase III includes larger scale, multi-center, comparative clinical trials conducted with patients afflicted by a target disease, in order to provide
enough data for a valid statistical test of safety and effectiveness required by the FDA and others, and to provide an adequate basis for product labeling.

The FDA receives reports on the progress of each phase of clinical testing and may require the modification, suspension, or termination of clinical
trials if, among other things, an unreasonable risk is presented to patients or if the design of the trial is insufficient to meet its stated objective.

NDA or Biologic License Application (BLA) Preparation and Submission - Upon completion of Phase III trials, the sponsor assembles the
statistically analyzed data from all phases of development, along with the chemistry and manufacturing and pre-clinical data and the proposed labeling, among other things, into a single large document, the NDA (New Drug Application) or BLA in CTD
format as of July 1, 2003, which today comprises, on average, roughly 100,000 pages.

FDA Review of NDA or BLA - The FDA carefully
scrutinizes data from all phases of development to confirm that the manufacturer has complied with regulations and that the drug or biologic is safe and effective for the specific use (or indication) under study. The FDA may refuse to
accept the NDA or BLA for filing and substantive review if certain administrative and content criteria are not satisfied. Even after accepting the submission for review, the FDA may also require additional testing or information before approval of
an NDA or BLA. The FDA must deny approval of an NDA or BLA if applicable regulatory requirements are not satisfied.

Post-Marketing
Surveillance and Phase IV Studies - Federal regulation requires the sponsor to collect and periodically report to the FDA additional safety and efficacy data on the drug or biologic for as long as the manufacturer markets the product
(post-marketing surveillance). If the product is marketed outside the U.S., these reports must include data from all countries in which the product is sold. Additional studies (Phase IV) may be required by the FDA as a condition of the
products approval to assess safety or verify clinical benefit or may be voluntarily undertaken after initial approval to find new uses for the product, to test new dosage formulations, or to confirm selected non-clinical benefits, e.g.,
increased cost-effectiveness or improved quality of life. Product approval may be withdrawn if compliance with regulatory standards is not maintained or if problems occur following initial marketing. In addition, the FDA and other major regulatory
agencies ask sponsor companies to prepare risk management plans for approved and marketed drugs and biologics, aimed at assessing areas of drug risk and plans for managing such risks should they materialize. The passage of the FDA Amendments Act of
2007 imposed additional requirements on sponsors to address drug safety (for example, through a plan called Risk Evaluation and Mitigation Strategies or REMS), to conduct post-marketing studies required by the FDA and to submit clinical trial
information, including clinical study results, of investigational and marketed drugs (as well as medical devices) to a databank maintained by the National Institutes of Health and accessible to the public on the Internet (www.clinicaltrials.gov).
This was done in order to increase the public transparency of clinical results.

REGULATION OF MEDICAL DEVICES

Unless a medical device is exempted from pre-market approval or clearance requirements, which are described below, FDA approval or clearance of the device
is required before the product may be marketed in the United States. In order to obtain pre-market clearance for marketing, a manufacturer must demonstrate substantial equivalence to a similar legally marketed product by submitting a pre-market
notification, or 510(k), to the FDA. The FDA may require preclinical and clinical data to support a substantial equivalence determination, and there can be no assurance the FDA will find a device substantially equivalent. Clinical trials can take
extended periods of time to complete. In addition, if the FDA requires an approved Investigational Device Exemption (IDE) before clinical device trials may commence, there can be no guarantee that the agency will approve the IDE. The IDE
approval process could also result in significant delays.



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After submission of a pre-market notification containing, among other things, any data collected, the FDA
may find the device substantially equivalent and the device may be marketed. After a device receives 510(k) clearance, any modification that could significantly affect its safety or effectiveness, or that would constitute a major change in its
intended use, requires a new 510(k) clearance or could require approval of a pre-market approval application (PMA). If the FDA finds that a device is not substantially equivalent, the manufacturer may request that the FDA make a
risk-based classification to place the device in Class I or Class II. However, if a timely request for risk-based classification is not made, or if the FDA determines that a Class III designation is appropriate, a PMA will be required before the
device may be marketed.

The PMA approval process is lengthy, expensive, and typically requires, among other things, extensive data from
preclinical testing and a well-controlled clinical trial or trials that demonstrate a reasonable assurance of safety and effectiveness. There can be no assurance that review will result in timely, or any, PMA approval. There may also be significant
conditions associated with the approval, including limitations on labeling and advertising claims and the imposition of post-market testing, tracking, or surveillance requirements. Even after approval, a new PMA or PMA supplement is required in the
event of a modification to the device, its labeling or its manufacturing process.

REGULATION OF PATIENT INFORMATION

The confidentiality, security, use and disclosure of patient-specific information are subject to governmental regulation. Regulations to protect
the safety and privacy of human subjects who participate in or whose data are used in clinical research generally require clinical investigators to obtain affirmative informed consent from identifiable research
subjects before research is undertaken. Under the Health Insurance Portability and Accountability Act of 1996, or HIPAA, the U.S. Department of Health and Human Services has issued regulations mandating heightened privacy and
confidentiality protections for certain types of individually identifiable health information, or protected health information, when used or disclosed by health care providers and other HIPAA-covered entities or business associates that
provide services to or perform functions on behalf of these covered entities. HIPAA regulations require individuals written authorization before identifiable health information may be used for research, in addition to any required
informed consent. HIPAA regulations also specify standards for de-identifying health information so that information can be handled outside of the HIPAA requirements and for creating limited data sets that can be used for research
purposes under less stringent HIPAA restrictions.

Outside of the United States, many countries have enacted laws to safeguard the
privacy and security of personal information, including individually identifiable health information. The member states of the European Union have adopted a rigorous system of data protection regulations, based upon a framework imposed by the 1995
European Commission Directive on Data Protection, or Privacy Directive. These rules provide broad protections for personal information, including, among other things, notice requirements, limits on the scope and duration for which personal
information may be maintained and processed, restrictions on disclosures of personal information, standards for providing individuals with control over the manner in which personal information is processed, and restrictions on transfers of such data
to the United States and other countries that the European Union finds to lack adequate data protection laws of their own. Health-related information is recognized as a special, sensitive category of personal information, which may
generally be processed only pursuant to the affirmative, or opt-in, consent of the individual to whom the information pertains. Violations of these data protection regulations are subject to administrative penalties, civil money penalties, and
criminal prosecution, including corporate fines and personal liability.

In order to comply with these laws and regulations, we may need to
implement new privacy and security measures, which may require us to make substantial expenditures or cause us to limit the products and services we offer. In addition, if we violate applicable laws, regulations, contractual commitments, or other
duties relating to the use, privacy or security of health information, we could be subject to civil liability or criminal penalties and it may be necessary to modify our business practices.

POTENTIAL LIABILITY AND INSURANCE

Our
clinical research services focus on the testing of experimental drugs and devices on human volunteers pursuant to study protocols and in accordance with laws and regulations which govern clinical trials. Clinical research involves a risk of
liability for personal injury or death to patients due to, among other reasons, possible unforeseen adverse side effects or improper administration of the new drug or medical device. We do not generally provide health care services directly to
patients. Rather, our physicians or third party physician investigators are responsible for administering drugs and evaluating the study patients. Many of the patients enrolled in clinical trials are already seriously ill and are at risk of further
illness or death.

We believe that the risk of liability to patients in clinical trials is mitigated by various regulatory requirements,
including the role of IRBs, the need to obtain each patients informed consent, and the oversight by applicable regulatory authorities. The FDA, the Medicines and Healthcare products Regulatory Agency (MHRA) in the U.K., and regulatory
authorities in other



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countries require each human clinical trial to be reviewed and approved by the IRB at each study site. An IRB is an independent ethics committee that includes both medical and non-medical
personnel and is obligated to protect the interests of patients enrolled in the trial. The IRB approves and monitors the protocol and the measures designed to protect patients, such as the requirement to obtain informed consents.

To reduce our potential liability, we generally seek to incorporate indemnity provisions into our contracts with clients to protect us from liability for
adverse reactions to the study drug as well as any negligent acts by the study Sponsor and/or third party physician investigators. These indemnity provisions do not, however, protect us against certain of our own actions, such as those involving
negligence. Moreover, these indemnities are contractual arrangements that are subject to negotiation with individual clients, and the terms and scope of such indemnities can vary from client to client and from study to study. Finally, the financial
performance of these indemnities is not secured, so that we bear the risk that an indemnifying party may not have the financial ability to fulfill its indemnification obligations. We could be materially and adversely affected if we were required to
pay damages or incur defense costs in connection with an uninsured claim that is outside the scope of an indemnity or where the indemnity, although applicable, is not performed in accordance with its terms.

We currently maintain a portfolio of insurance coverage, including a professional liability insurance policy, subject to deductibles and coverage limits.
There can be no assurance that this insurance coverage will be adequate, or that insurance coverage will continue to be available on terms acceptable to PAREXEL.

AVAILABLE INFORMATION

Our Internet
website is http://www.parexel.com. We make available through this website our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and amendments to those reports filed pursuant to Sections 13(a) and
15(d) of the Exchange Act. We make these reports available free of charge through our website as soon as reasonably practicable after they have been electronically filed with, or furnished to, the Securities and Exchange Commission
(SEC). Any materials we file with the SEC may also be read and copied at the SECs public reference room located at 100 F Street, N.E. Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the
public reference room. Our SEC filings are also available to the public on the SECs Internet website at www.sec.gov.

PART IV



|Item 15. | Exhibits, Financial Statement Schedules
|-------- | ---------------------------------------

(a) The following exhibits are filed with this Amendment. The exhibit index previously included in the Original Filing is not amended hereby.



|           |  |                                                                            
|---------- |  | ---------------------------------------------------------------------------
|EXHIBITNO. |  | DESCRIPTION                                                                
|           | 
|31.3       |  | CEO certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
|           | 
|31.4       |  | CFO certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002



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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.



|                                  |  |                                                   |  |  |  |  |  |                         
|--------------------------------- |  | ------------------------------------------------- |  |  |  |  |  | ------------------------
|PAREXEL INTERNATIONAL CORPORATION |  |                                                   |  |  |  | 
|                                  |  |                                                   |  | 
|By:                               |  | /s/    JOSEF H. VON
RICKENBACH                    |  |  |  |  |  | Dated: September 9, 2010
|                                  |  | Josef H. von Rickenbach                           |  |  |  |  |  |                         
|                                  |  | Chairman of the Board and Chief Executive Officer |  |  |  |  |  |                         



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