Document:

Amended and Restated Employment Agreement, dated as of April 15, 2008

 EXHIBIT 10.1 
 Amended and Restated 
 Employment Agreement 
 Amended and Restated Agreement dated this 15th day of April, 2008, between PAREXEL International Corporation, a Massachusetts corporation having its
principal place of business in Waltham, Massachusetts (the “Company”), and Josef H. von Rickenbach, residing in Lexington, Massachusetts (the “Employee”). 
 WITNESSETH: 
 WHEREAS, the Company considers the establishment and maintenance of a
sound and vital management to be essential to protecting and enhancing the best interests of the Company and its stockholders; and 
 WHEREAS, on the date of this agreement Employee is the President, Chief Executive Officer and Chairman of the Board of Directors of the Company and has developed an intimate and thorough knowledge of the Company’s business methods and
operations; and 
 WHEREAS, the retention of Employee’s services, for and on behalf of the Company, is materially important to the
preservation and enhancement of the value of the Company’s business; and 
 WHEREAS, the Company is desirous of formalizing
Employee’s employment upon the terms and conditions contained herein; and Employee is desirous of continuing to be employed by the Company in accordance with such terms and conditions, 
 NOW, THEREFORE, in consideration of the mutual promises set forth herein, and for other good and valuable consideration, the receipt and adequacy of
which is hereby acknowledged, the parties hereto do hereby agree as follows: 
 1. Employment. The Company hereby agrees to employ
Employee, and Employee agrees to be employed by the Company in accordance with and pursuant to the terms and conditions set forth below. 
 2. Term of Employment. This Agreement shall be for an initial term of three (3) years. Upon the first anniversary hereof (and upon each successive anniversary thereafter), this Agreement shall be automatically renewed for a
three (3) year term commencing on the date of such renewal (i.e. each such renewal term will extend the term in effect immediately prior to such renewal by one year), unless either party hereto notifies the other in writing of its intent not to
renew this Agreement upon not less than ninety (90) days notice prior to the renewal date hereof. In the event either party gives the other proper notice of non-renewal, then this Agreement shall only continue for the balance of the then
existing term. Notwithstanding anything contained herein to the contrary, any term of employment may be earlier terminated as provided in Section 8 hereof. 
 3. Position and Responsibilities 
 (a) Employee will occupy the position of President and Chief
Executive Officer of the Company. The Company shall effect the nomination of Employee for election to the Company’s Board of Directors upon the expiration of Employee’s current term as a director. 
 (b) Employee will report directly to the Board of Directors and shall have such duties and responsibilities as are set forth in the By-Laws of the
Company, which duties and responsibilities shall include, but not be limited to, overall management responsibilities for the operation and administration of the Company as well as such other duties and responsibilities, consistent with
Employee’s position as President and Chief Executive Officer, as shall be defined by the Board of Directors. 

 (c) Employee will be expected to be in the full-time employment of the Company, to devote substantially
all of his business time and attention, and exert his best efforts to the performance of his duties hereunder, and to serve the Company diligently and to the best of his ability; provided, however, nothing set forth herein shall prohibit
Employee from (i) serving as a member of the board of directors of an unaffiliated company (including, without limitation, not-for-profit entities) not in competition with the Company subject, however, in each such case of board membership, to
prior approval of the Board of Directors of the Company and (ii) engaging in charitable and community activities to the extent that such activities do not, either individually or in the aggregate, impair the ability of Employee to perform his
duties and obligations under this Agreement; provided, further, that Employee shall promptly notify the Board of Directors of any such outside activities and in the event the Board of Directors reasonably determines that any such activity or
activities materially interfere with the ability of Employee to perform his duties and obligations as President and Chief Executive Officer of the Company, Employee agrees to promptly cease such outside activity or activities. 
 4. Compensation. The Company shall pay to Employee a salary (the “base salary”) at a monthly rate of forty five thousand, eight hundred
thirty three and 33/100 dollars ($45,833.33), subject to deductions for social security, payroll withholding and all other legally required or authorized deductions and withholdings. Employee’s salary shall be payable at the same time and on
the same basis as the Company pays its executive employees in general. The Board of Directors or the Compensation Committee thereof shall review Employee’s base salary no less frequently than annually. In no event shall Employee’s base
salary be decreased during his period of employment. 
 5. Annual Incentive Payments. In addition to the base salary referenced in
Section 4, Employee shall be entitled to annual (i.e. fiscal year) bonuses (“incentive payments”) if he satisfies agreed upon goals/objectives to be established by the Board of Directors or Compensation Committee at its sole and
absolute discretion in consultation with Employee on an annual basis, with the goals/objectives for any fiscal year to be established by the end of the first quarter of such fiscal year. The amount of such bonuses, if any, shall be determined by the
Board of Directors or Compensation Committee. In no event shall Employee’s target bonus opportunity for any fiscal year be less than the amount, if any, by which $560,000 exceeds Employee’s base salary for such fiscal year. 
 6. Stock Options and Other Long Term Incentive Programs. Employee shall continue to be entitled to receive stock options, shares of restricted
stock and other stock based awards pursuant to the Company’s equity compensation plans (or any successor plan or additional plans the Company may adopt in the future), including in each case any amendments thereto. The number of shares covered
by any such option grants, restricted stock awards and other stock based awards, the exercise price per share (in the case of options) and other terms and conditions governing such options, restricted stock and other stock based awards shall be
determined by the Compensation Committee, subject however to the terms of such plan, as amended from time to time, and, to the extent applicable, the provisions of this Agreement. The Compensation Committee is not under any obligation, express or
implied, to make any option grants, restricted stock awards and other stock based awards and any such grants will be made by the Compensation Committee acting in its sole discretion. In addition, Employee shall also be eligible to participate in any
other long term incentive program covering executive employees generally. To the extent permitted by law and the governing provisions of the plan documents, in the event of a termination, Employee shall have the authority to direct the payment by
the Company of any lump sum amounts received pursuant to any long term incentive or pension program into a tax-free rollover, if applicable. 
 7. Benefits; Expenses; Vacations. 
 (a) Employee shall be entitled to receive the same standard employee benefits,
perquisites and services as other executive employees of the Company receive generally. Employee shall also be entitled to fully participate in all of the Company’s future employee benefit programs, perquisites and services in accordance with
their then existing terms. 
 (b) Employee shall be entitled to reimbursement for all approved and reasonable travel and other business
expenses incurred by him in connection with his services to the Company pursuant to the terms of this Agreement. All business expenses for which Employee seeks reimbursement from the Company shall be adequately documented by Employee in accordance
with the Company’s procedures covering expense reimbursement, and in compliance with regulations of the U.S. Internal Revenue Service. 

 (c) Employee shall be entitled to vacation days in accordance with the Company’s employment policies
and practices applicable to executive employees of the Company generally, as such policies and practices are from time to time in effect. 
 8. Employment Termination. The employment of Employee pursuant to this Agreement shall terminate upon the occurrence of any of the following: 
 (a) Expiration of the employment term set forth in Section 2. 
 (b) For Cause (as defined in
Section 10) upon written notice by the Company to the Employee. 
 (c) Death or thirty (30) days after the disability (as defined
in Section 10) of Employee. 
 (d) At the election of either the Company without Cause (as defined below) or Employee without Good
Reason (as defined below), upon not less than sixty (60) days prior written notice of termination. 
 (e) At the election of Employee
for Good Reason (as defined in Section 10), upon not less than thirty (30) days prior written notice of termination, provided that a termination for Good Reason by the Employee can only occur if (i) such notice of termination
indicates the existence of a condition giving rise to Good Reason and the Company has not cured the condition giving rise to Good Reason within thirty (30) days after receipt of such notice of termination, and (ii) such notice of
termination is given within ninety (90) days after the initial occurrence of the condition giving rise to Good Reason and further provided that a termination for Good Reason shall occur no later than two years after the initial existence of the
condition. 
 9. Effect of Termination. 
 (a) Termination at the Expiration of the Employment Term. In the event Employee has a termination from employment pursuant to Section 8(a), the Company shall pay him within thirty (30) days of the
last day of the term of this Agreement, a lump sum payment equal to any base salary (less applicable deductions), incentive payments and benefits, perquisites and services earned by Employee or otherwise payable to him through the last day of the
term of this Agreement pursuant to Section 2, but not yet paid to Employee. 
 In the event of termination pursuant to Section 8(a)
where Employee has given a notice of non-renewal in accordance with Section 2: all (i) vested stock options shall remain exercisable in accordance with their terms, (ii) non-vested stock options shall be canceled in accordance with
their terms, (iii) shares of restricted stock that have vested shall remain vested in accordance with their terms, and (iv) shares of restricted stock that have not vested shall be forfeited to the Company in accordance with their terms;
and all (i) unvested portions of any other long term incentive programs referenced in Section 6 shall be canceled and (ii) vested portions of any other long term incentive programs referenced in Section 6 shall be paid to
Employee in accordance with their terms. 
 In all other events of termination pursuant to Section 8(a): all previously granted, but
unexercised stock options which are outstanding on Employee’s date of termination shall remain (or shall become) fully vested and exercisable as of such date, and shall be exercisable in accordance with their terms; provided, however,
that any such acceleration of exercisability shall not extend the period after a termination of employment within which any option may be exercised by Employee in accordance with the provisions of the relevant option agreement and option plan;
and all previously granted shares of restricted stock which are outstanding on Employee’s date of termination shall remain (or shall become) fully vested as of such date. 
 (b) Termination for Cause or at Election of Employee. In the event Employee’s employment is terminated by the Company for Cause pursuant to
Section 8(b), or at the election of the Employee pursuant to 

 
Section 8(d), the Company shall pay Employee within thirty (30) days of his termination a lump sum equal to any base salary (less applicable
deductions), incentive payment and benefits, perquisites and services earned by Employee or otherwise payable to him through the last day of his actual employment by the Company, but not yet paid to Employee. 
 All (i) vested stock options shall remain exercisable in accordance with their terms, (ii) non-vested stock options shall be canceled in
accordance with their terms, (iii) shares of restricted stock that have vested shall remain vested in accordance with their terms, and (iv) shares of restricted stock that have not vested shall be forfeited to the Company in accordance
with their terms. All (i) unvested portions of any other long term incentive programs referenced in Section 6 shall be canceled and (ii) vested portions of any other long term incentive programs referenced in Section 6 shall be
paid to Employee in accordance with its terms. 
 (c) Termination at the Election of the Company Without Cause or at the Election of
Employee for Good Reason, Other than in Connection with a Change of Control. In the event that Employee’s employment is terminated at the election of the Company without Cause pursuant to Section 8(d), or at the election of the
Employee for Good Reason pursuant to Section 8(e), in each case other than in circumstances covered by Section 9(d) below, the Company shall pay Employee within thirty (30) days of his termination a lump sum equal to his then base
salary (less applicable deductions), incentive payments and benefits, perquisites and services otherwise payable to him through the date which is three (3) years after the date me Employee’s employment is terminated. The incentive payments
referred to in the preceding sentence for each year of the severance payments shall be equal to the greater of Employee’s target incentive award for the year of his termination, or his actual incentive payment for the immediately preceding
year. 
 All previously granted, but unexercised stock options which are outstanding on Employee’s date of termination shall remain (or
shall become) fully vested and exercisable as of such date, and shall be exercisable in accordance with their terms; provided, however, that any such acceleration of exercisability shall not extend the period after a termination of employment
within which any option may be exercised by Employee in accordance with the provisions of the relevant option agreement and option plan; and all previously granted shares of restricted stock which are outstanding on Employee’s date of
termination shall remain (or shall become) fully vested as of such date. In addition, any amounts or awards to which Employee may be entitled under any other long term incentive program referenced in Section 6 (whether or not vested) shall be
paid to Employee in a lump-sum within thirty (30) days of his termination. 
 (d) Termination at the Election of the Company Without
Cause or at the Election of Employee for Good Reason, in Connection with a Change of Control. In the event that, during the period beginning twelve (12) months prior to a Change of Control (as defined in Section 10) and subsequent to
the commencement of substantive discussions that ultimately result in the Change of Control and ending eighteen (18) months following such Change of Control, Employee’s employment is terminated at the election of the Company without Cause
pursuant to Section 8(d), or at the election of the Employee for Good Reason pursuant to Section 8(e) (provided that any such termination by Employee must occur promptly (and in any event within ninety (90) days after the occurrence
of the event or events constituting Good Reason), the Company shall pay Employee within thirty (30) days following the Change of Control (if Employee’s employment was terminated on or prior to the Change of Control) or within thirty days
following the date Employee’s employment is terminated (if such employment is terminated after the Change of Control): 
 (i) if Employee’s employment was terminated on or prior to the Change of Control, a lump-sum equal to me amount of base salary (less applicable deductions), incentive payments and benefits, perquisites and services that would have been
payable to Employee had he remained an employee of the Company through the date of the Change of Control; and 
 (ii) a
lump-sum equal to the amount of base salary (less applicable deductions), incentive payments and benefits, perquisites and services otherwise payable to him through the date which is three (3) years after the date the Employee’s employment
is terminated (with incentive payments for each year of the severance payments being equal to the greater of Employee’s target incentive award for the year of his termination, or his actual incentive payment for the immediately preceding year);

 (iii) All previously granted, but unexercised stock options which are outstanding on
Employee’s date of termination shall remain (or shall become) fully vested and exercisable as of such date, and shall be exercisable in accordance with their terms; provided, however, that: (1) any acceleration of exercisability shall not
occur to the extent that: (I) the Change of Control is intended to be accounted for as a pooling of interests, and (II) the Company concludes, after consulting with its independent accountants, that such acceleration would prevent the Change of
Control transaction from being accounted for as a pooling of interests for financial accounting purposes; (2) any such acceleration of exercisability shall not occur as to any option if the Change of Control does not occur within the period
within which Employee may exercise such option after a termination of employment in accordance with the provisions of the relevant option agreement and option plan and (3) any such acceleration of exercisability shall not extend the period
after a termination of employment within which any option may be exercised by Employee in accordance with the provisions of the relevant option agreement and option plan. In addition, any amounts or awards to which Employee may be entitled under any
other long term incentive program referenced in Section 6 (whether or not vested) shall be paid to Employee in a lump-sum within thirty (30) days of his termination; and 
 (iv) All previously granted shares of restricted stock which are outstanding on Employee’s date of termination shall remain (or shall
become) fully vested as of such date. 
 In addition, upon the request of Employee, the Company shall provide outplacement services through
one (1) or more outside firms of Employee’s choosing up to an aggregate amount of thirty-five thousand dollars ($35,000), with such services to extend until the earlier of: (i) twelve (12) months following the termination of
Employee’s employment or (ii) the date Employee secures full time employment. 
 Any amounts or benefits payable to Employee under
this Section 9(d) shall be in lieu of, and not in addition to any other amounts or benefits under this Agreement which might otherwise have been or be payable to Employee. In that regard, any amounts and benefits set forth in this
Section 9(d) shall be, as applicable, eliminated or reduced by any and all other severance or other amounts or benefits paid or payable to Employee as a result of the termination of his employment, including any amounts that were paid to
Employee pursuant to Section 9(c) if Employee’s employment was terminated prior to a Change of Control that was later determined to give rise to benefits pursuant to this Section 9(d). 
 (e) Termination for Death or Disability. In the event Employee’s employment is terminated by death or disability pursuant to
Section 8(c), the Company shall pay to the estate of Employee, or to Employee, as the case may be, within thirty (30) days of Employee’s death, or disability a lump-sum equal to his then base salary, incentive payments and benefits,
perquisites and services otherwise payable to him through the date which is three (3) years after the date of the Employee’s death or disability, or such other period as may be required by law; provided, however, any amounts payable as a
result of Employee’s disability shall be reduced by any Company provided long term disability payments received by him. The incentive payments referred to in the preceding sentence for each year of the three year period following the
Employee’s death or disability shall be equal to the greater of Employee’s target incentive amount for the year of his death or disability, or his actual incentive payment for the immediately preceding year. 
 All previously granted, but unexercised stock options which are outstanding on Employee’s date of termination shall remain (or shall become) fully
vested and exercisable as of the date of his death or disability and shall be exercisable in accordance with their terms and all previously granted shares of restricted stock which are outstanding on Employee’s date of termination shall remain
(or shall become) fully vested as of such date. In addition, any amounts or awards to which Employee may be entitled under any other long term incentive program referenced in Section 6 as a result of Employee’s death or disability, shall
be paid to the estate of Employee, or to Employee, as the case may be, in a lump-sum within thirty (30) days of Employee’s death, or sixty (60) days after termination for disability. 

 10. Certain Definitions. 
 (a) “Change of Control” Definition. For purposes of this Agreement, “Change of Control” shall mean the closing of: 

(i) a merger, consolidation, liquidation or reorganization of the Company into or with another Company or other legal person, after
which merger, consolidation, liquidation or reorganization the capital stock of the Company outstanding prior to consummation of the transaction is not converted into or exchanged for or does not represent more than 50% of the aggregate voting power
of the surviving or resulting entity; 
 (ii) the direct or indirect acquisition by any person (as the term person is used in
Section 13(d) (3) or 14(d) (2) of the Securities Exchange Act of 1934, as amended) of more than 50% of the voting capital stock of the Company, in a single or series of related transactions, or 
 (iii) the sale, exchange, or transfer of all or substantially all of the Company’s assets (other than a sale, exchange or transfer to
one or more entities where the stockholders of the Company immediately before such sale, exchange or transfer retain, directly or indirectly, at least a majority of the beneficial interest in the voting stock of the entities to which the assets were
transferred). 
 (b) “Good Reason” Definition. For purposes of this Agreement, Good Reason shall mean (i) the
assignment to Employee of any duties inconsistent in any adverse, material respect with his position, authority, duties or responsibilities as President and Chief Executive Officer of the Company, or any other action by the Company which results in
a material diminution in such position, authority, duties or responsibilities, (ii) a material reduction in the aggregate of Employee’s base or incentive compensation or the termination of Employee’s rights to any employee benefits,
except to the extent that any such benefit is replaced with a comparable benefit, or a reduction in scope or value thereof, other than as a result of across-the-board reductions or terminations affecting officers of the Company generally,
(iii) a change by the Company in the location at which the Employee performs the Employee’s principal duties for the Company to a new location that is both (X) outside a radius of 40 miles from the Employee’s principal residence
immediately prior to the Change in Control and (Y) more than 30 miles from the location at which the Employee performed the Employee’s principal duties for the Company immediately prior to the Change in Control; or a requirement by the
Company that the Employee travel on Company business to a substantially greater extent than required immediately prior to the Change in Control, or (iv) prior to a Change in Control the failure by the Company to effect the nomination of
Employee for election to the Company’s Board of Directors upon the expiration of Employee’s then-current term as a director. 
 (c)
“Cause” Definition. For the purposes of this Agreement, “Cause” shall mean: (i) any material breach by Employee of this Agreement or a refusal by Employee to comply in all material respects with a directive(s)
reasonably assigned by the Company’s Board of Directors; (ii) the commission by Employee of a felony, either in connection with the performance of his obligations to the Company or which adversely affects Employee’s ability to perform
such obligations; (iii) gross negligence, breach of fiduciary duty or breach of any confidentiality, non-competition or developments agreement in favor of the Company; or (iv) the commission by Employee of an act of fraud or embezzlement
or other acts which result in loss, damage or injury to the Company, whether directly or indirectly. Any notice of termination of employment for cause shall set forth in reasonable detail the facts and circumstances claimed to provide the basis for
such termination under the provisions contained herein and the date of termination (“Termination Date”). With respect to termination pursuant to subsection (i) hereof, Employee shall be given the opportunity to cease or correct the
performance (or nonperformance) giving rise to such notice within a reasonable period of time from receipt of notice, but in no event to exceed sixty (60) days; and, in the judgment of the Board of Directors, upon failure of Employee to cease
or correct such performance (or nonperformance) within such sixty (60) day period, Employee’s employment shall automatically terminate. With respect to termination pursuant to subsection (iii) hereof, Employee shall be given the
opportunity to cease or correct the performance (or nonperformance) giving rise to such notice within a reasonable period of time from receipt of notice, but in no event to exceed twenty (20) days; and, in the judgment of the Board of
Directors, upon failure of Employee to cease or correct such performance (or nonperformance) within such twenty (20) day period, Employee’s employment shall automatically terminate. 

 (d) “Disability” Definition. For purposes of this Agreement, the term
“disability” shall mean the inability of Employee due to a physical or mental disability, for a period of ninety (90) days (whether or not consecutive) during any three hundred sixty five (365) day period to perform the services
contemplated under this Agreement. A determination of disability shall be made by a physician satisfactory to both Employee and the Company; provided, however, if Employee and the Company do not agree on a physician, Employee and the Company
shall each select a physician and these two together shall select a third physician, and such third physician’s determination as to disability shall be binding on all parties. 
 (e) Section 409A Requirements. The following rules shall apply with respect to distribution of the payments and benefits, if any, to be provided to
Employee under this Agreement: 
 (i) It is intended that each installment of the payments and benefits provided under this
Agreement shall be treated as a separate “payment” for purposes of Section 409A of the U.S. Internal Revenue Code of 1986, as amended, and the guidance issued thereunder (“Section 409A”). Neither the Company nor the Employee
shall have the right to accelerate or defer the delivery of any such payments or benefits except to the extent specifically permitted or required by Section 409A; 
 (ii) If, as of the date of the “separation from service” of the Employee from the Company, the Employee is not a “specified
employee” (each within the meaning of Section 409A), then each installment of the payments and benefits shall be made on the dates and terms set forth in this Agreement; and 
 (iii) If, as of the date of the “separation from service” of the Employee from the Company, the Employee is a “specified
employee” (each, for purposes of this Agreement, within the meaning of Section 409A), then: 
 (A) Each installment
of the payments and benefits that, in accordance with the dates and terms set forth herein, will in all circumstances, regardless of when the separation from service occurs, be paid within the Short-Term Deferral Period (as hereinafter defined)
shall be treated as a short-term deferral within the meaning of Treasury Regulation § 1.409A-1(b)(4) to the maximum extent permissible under Section 409A. For purposes of this Agreement, the “Short-Term Deferral Period” means the
period ending on the later of the 15th day of the third month following the end of the Employee’s tax year in which the Employee’s separation from service occurs and the 15th day of the third month following the end of the Company’s
tax year in which the Employee’s separation from service occurs; and 
 (B) Each installment of the payments and
benefits that is not paid within the Short-Term Deferral Period and that would, absent this subsection, be paid within the six-month period following the “separation from service” of the Employee of the Company shall not be paid until the
date that is six months and one day after such separation from service (or, if earlier, the death of the Employee), with any such installments that are required to be delayed being accumulated during the six-month period and paid in a lump sum on
the date that is six months and one day following the Employee’s separation from service and any subsequent installments, if any, being paid in accordance with the dates and terms set forth herein; provided, however, that the preceding
provisions of this sentence shall not apply to any installment of payments and benefits if and to the maximum extent that such installment is deemed to be paid under a separation pay plan that does not provide for a deferral of compensation by
reason of the application of Treasury Regulation § 1.409A-1(b)(9)(iii) (relating to separation pay upon an involuntary separation from service) or Treasury Regulation § 1.409A-1(b)(9)(iv) (relating to reimbursements and certain other
separation payments). Such payments shall bear interest at an annual rate equal to the prime rate as set forth in the Eastern edition of the Wall Street Journal on the Date of Termination, from the Date of Termination to the date of payment. Any
installments that qualify for the exception under Treasury Regulation 

 
§ 1.409A-1(b)(9)(iii) must be paid no later than the last day of the second taxable year of the Employee following the taxable year of the Employee in
which the separation from service occurs. 
 11. Gross-up Provision. 
 (a) Notwithstanding any provision of this Agreement, or any other agreement, plan or arrangement to the contrary, if any portion of the Contingent
Payments made or to be made to the Employee would result in the imposition of an Excise Tax, then: 
 (i) if the After-Tax
Proceeds With Gross-Up exceed the After-Tax Proceeds With Cut-Back, the Company shall pay to Employee an amount in cash equal to the Gross-Up Amount; or 
 (ii) if the After-Tax Proceeds With Cut-Back exceed the After-Tax Proceeds With Gross-Up, Employee shall not be paid the Gross-Up Amount and the aggregate amount of all payments to which Employee is entitled under
this Agreement and all other agreements, plans and arrangements shall be reduced to the minimum extent necessary so that the aggregate present value of such payments equals no more than 299% of Employee’s Base Amount. 
 Any Gross-Up Amount payable to the Employee shall be paid by the end of the Employee’s taxable year next following the Employee’s taxable year
in which the Employee remits the taxes related to the Gross-Up Amount. 
 (b) All determinations required under this Section 11 shall be
made by the Company’s independent accountants, after due consideration of Employee’s comments with respect to the interpretation hereof, and all such determinations shall be conclusive, final and binding on the parties hereto, subject to a
Final Determination. 
 (c) For purposes of this Section 11: 
 “After-Tax Proceeds With Cut-Back” shall mean the fair market value of all Contingent Payments to Employee reduced to the minimum extent
necessary so that the aggregate present value of such payments equals 299% of the Employee’s Base Amount, and reduced further by the aggregate amount of all Taxes which would be imposed on Employee with respect to such Contingent Payments. The
amount of Taxes deemed imposed with respect to such Contingent Payments shall be determined as if all events that could give rise to a Tax with respect to such Contingent Payments had occurred. 
 “After-Tax Proceeds With Gross-Up” shall mean the fair market value of all Contingent Payments to the Employee plus the Gross-Up Amount,
reduced by the aggregate amount of all Taxes which would be imposed on Employee with respect to such Contingent Payments. The amount of Taxes deemed imposed with respect to such Contingent Payments shall be determined as if all events that could
give rise to a Tax with respect to such Contingent Payments had occurred. 
 “Base Amount” shall have the meaning set forth in
Section 280G(b)(3) of the Code and Proposed Treasury Regulation Section 1.280G-1, Q/A34, or any successor provisions of law. 
 “Code” means the Internal Revenue Code of 1986, as amended, or any successor provision of law. 
 “Contingent
Payments” shall mean all payments in the nature of compensation payable to (or for the benefit of) Employee which would otherwise be treated as “excess parachute payments” (within the meaning of Section 280G(b)(1) of the Code)
determined as if the thresholds set forth in Section 280G(b)(2)(A)(ii) of the Code were satisfied with respect to Employee. 

 “Change in Control” shall mean a change in the ownership or effective control of the Company or
in the ownership of a substantial portion of the assets of the Company, in each case determined in accordance with the provisions of Section 280G(b)(2)(A) and the Proposed Treasury Regulations promulgated thereunder. 
 “Excise Tax” shall mean any Tax imposed upon Employee pursuant to Section 4999 of the Code. 
 “Final Determination” shall mean any final determination of liability that, under applicable law, is not subject to further appeal, review or
modification through proceedings or otherwise, including but not limited to the expiration of a statute of limitations or a period for the filing of claims for refunds, amended returns or appeals from adverse determinations. 
 “Gross-Up Amount” shall mean the lesser of (i) $500,000 and (ii) the quotient equal to (A) the aggregate excise taxes which
would be imposed on Employee under Section 4999 of the Code in connection with a Change in Control of the Company, determined without regard to the provisions of this Section 11, divided by (B) one minus the highest marginal income
and excise Tax rate applicable to Employee for the calendar year in which occurred the Change in Control, determined as if all Contingent Payments were paid without regard to the provisions of this Section 11. 
 “Taxes” shall mean all federal, state and local income, employment and excise taxes (including Excise Taxes) imposed by any governmental
authority. 
 12. Employee’s Obligations. Nothing herein shall affect Employee’s obligations under any key employee,
non-competition, confidentiality, option or similar agreement between the Company and Employee currently in effect or which may be entered into in the future. Notwithstanding the foregoing, the Company and Employee hereby agree that the duration of
Employee’s obligations pursuant to Section 3.2 of the Key Employee Confidentiality and Invention Agreement dated as of July 31, 1986 by and between the Company and Employee (“Key Employee Agreement”) is hereby extended so
that, in the event of termination of Employee’s employment in the circumstances contemplated by Sections 9(c) or 9(d) above, Employee’s obligations under Section 3.2 of the Key Employee Agreement shall remain in effect until the last
day of the term of this Agreement but for such termination of employment. 
 13. Waivers. This Agreement may be modified, and the
rights and remedies of any provision hereof may be waived, only in writing, signed by both the Company and Employee. No waiver by either party of any breach by the other or any provision hereof shall be deemed to be a waiver of any later or other
breach hereof, or as a waiver of any other provision of this Agreement. 
 14. Governing Law; Waivers; Severability. This Agreement
shall be governed by and construed in accordance with the laws of the Commonwealth of Massachusetts. The provisions of this Agreement may be amended, waived or rescinded only upon the written agreement of the Company and Employee. The invalidity or
unenforceability of any provision of this Agreement shall not affect the other provisions of this Agreement and this Agreement shall be construed and reformed to the fullest extent possible. 
 15. Section 409A of the Code. This Agreement is intended to comply with the provisions of Section 409A and the Agreement shall, to the extent
practicable, be construed in accordance therewith. Terms defined in the Agreement shall have the meanings given such terms under Section 409A if and to the extent required in order to comply with Section 409A. Notwithstanding the
foregoing, to the extent that the Agreement or any payment or benefit hereunder shall be deemed not to comply with Section 409A, then neither the Company, the Board of Directors nor its or their designees or agents shall be liable to the
Employee or any other person for any actions, decisions or determinations made in good faith. 
 16. Termination of All Prior Agreements:
Entire Agreement. Upon execution of this Agreement, all prior employment agreements shall be terminated and of no further force or effect, except for the Key Employee Agreement, which shall continue in full force and effect in accordance with
its terms. This Agreement, the relevant agreements relating to the options, restricted stock and other stock based awards that have been or may be granted to Employee, and the Key Employee Agreement constitute the entire agreement and understanding
between the Company and Employee with respect to the subject matter hereof and supersede any other prior agreements or understandings whether oral or written. 

 17. Expenses. The Company shall pay or cause to be paid and shall be solely responsible for any
and all attorney’s fees and expenses incurred by Employee (i) in connection with Employee’s review and execution of this Agreement; and (ii) to enforce his rights under this Agreement, solely in the event that the Company is
found by a court of competent jurisdiction, an arbitrator or through a mutual settlement agreement to have failed to perform any of its obligations under this Agreement. 
 18. Liquidated Damages. The parties hereto expressly agree that the payments by the Company to Employee in accordance with the terms of this Agreement will be liquidated damages, and that Employee shall not be
required to mitigate the amount of any payment provided for in this Agreement by seeking other employment or otherwise, nor shall any profits, income, earnings or other benefits from any source whatsoever create any mitigation offset, reduction, or
any other obligation on the part of Employee. 
 19. Agreement Binding; Assignment. Except as otherwise provided herein, this
Agreement shall be binding upon and inure to the benefit of the Company, and any successor (whether directly or indirectly, by purchase, merger, consolidation, reorganization or otherwise) of the Company; provided, however, that as a condition of
closing a transaction which results in a Change of Control, the Company shall obtain the written agreement of any successor (whether directly or indirectly, by purchase, merger, consolidation, reorganization or otherwise) of the Company to be bound
by the provisions of this Agreement as if such successor were the Company and for purposes of this Agreement, any such successor of the Company shall be deemed the “Company” for all purposes. Employee may not assign any of his rights or
obligations under this Agreement; the rights and obligations of the Company under this Agreement shall inure to the benefit of, and shall be binding upon, the successors and assigns of the Company. 
 20. Notices. Any notice required or permitted to be given pursuant to this Agreement shall be in writing, and sent to the party for whom (or
which) it is intended at the address of such parties set forth below by registered or certified mail, return receipt requested, or at such other address either party shall designate by notice to the other in the manner provided herein for giving
notice. 
  

			
	If to the Company	  	 PAREXEL International Corporation
 200 West Street

 Waltham, MA 02451
 Attn: Chairman of Compensation Committee

		
	If to the Employee	  	 Josef H. von Rickenbach
 28 Brent Road
 Lexington, MA 02420

 IN WITNESS WHEREOF, each of the parties hereto has executed this Employment Agreement (which may be
executed in any number of counterparts, all of which taken together shall constitute one and the same instrument) as of the date and year first above written. 
  

			
	PAREXEL International Corporation
		
	By:	 	 /s/ James F. Winschel, Jr.

		 	James F. Winschel, Jr.
	Title:	 	Chief Financial Officer
	
	 /s/ Josef H. von Rickenbach

	Josef H. von RickenbachAmended and Restated Change of Control/Severance Agreement, dated as of April 15

 EXHIBIT 10.2 
 AMENDED AND RESTATED CHANGE OF CONTROL/SEVERANCE AGREEMENT 
 This AMENDED AND RESTATED CHANGE
OF CONTROL/SEVERANCE AGREEMENT, dated as of April 15, 2008 by and between PAREXEL International Corporation (together with all subsidiaries or affiliates hereinafter referred to as the “Company”) and James F. Winschel, Jr. (the
“Executive”). 
 WHEREAS, the Executive has been hired as a senior executive of the Company and is expected to make major
contributions to the Company; 
 WHEREAS, the Company desires continuity of management; 
 WHEREAS, the Executive is willing to render services to the Company subject to the conditions set forth in this Agreement; and 
 WHEREAS, the Executive and the Company have entered into a Change of Control/Severance Agreement (the “Current Agreement”), dated as of
April 3, 2001, as amended on February 7, 2006, and both parties desire to amend and restate the Current Agreement as set forth herein. 
 NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Company and the Executive agree that the Current Agreement be amended and restated in its entirety as follows: 

1. Termination without Cause.  
 In the event the Company terminates the Executive’s employment with the Company without Cause (as such term is defined in Section 5(c) below), the Company shall pay to the Executive lump sum amounts (net of any required
withholding) equal to (i) twelve (12) months of monthly base salary (at the highest monthly base salary rate in effect for the Executive in the twelve month period prior to the termination of his employment)(“Base Salary”)(which
shall be paid within ten business days following the Executive’s last date of employment), plus (ii) the pro rata share of the bonus that would otherwise have been payable to the Executive pursuant to the Company's Performance Bonus Plan
(the “PBP”) during the year in which the termination occurs had his employment not been terminated by the Company, based on bonus arrangements in effect at any time during the twelve month period immediately prior to the termination of his
employment, such pro rata share to be calculated from the beginning of the fiscal year in which the termination occurs through the date of termination (which shall be paid within ten business days after the payment of bonuses, if any, to the
Company’s executive officers pursuant to the PBP for the year in which the termination occurred); provided, however, that such pro rata bonus shall only be payable to the extent of, and in accordance with, (i) the Company’s
determination that the Company’s and the Executive’s PBP performance goals have been satisfied, and (ii) the Company’s determination to pay bonuses to its executive officers, for the year in which the termination occurs.

 2. Termination Prior to a Change of Control. 
 (a) Notwithstanding the provisions of Section 1 above, if, within nine months prior to a Change of Control (as such term is defined in Section 5(b) below) and subsequent to the commencement of substantive
discussions that ultimately result in the Change of Control, the Company terminates the Executive’s employment with the Company without Cause (as such term is defined in Section 5(c) below), the Company shall: 
  

	 	(1)	Pay to the Executive, within ten (10) business days following the Change of Control, a lump sum amount (net of any required withholding) equal to: (i) twelve
(12) months of Base Salary, plus (ii) the target bonus that could have been payable to the Executive (assuming continued employment) during the year in which the termination of employment occurs based on bonus arrangements in effect at any
time during the twelve month period immediately prior to the termination of his employment; and 

	 	(2)	Provide the Executive and his dependents with life, accident, health and dental insurance substantially similar to that which the Executive was receiving immediately prior to the
termination of his employment until the earlier of: (i) the date which is twelve (12) months following the Change of Control; or (ii) the date the Executive commences subsequent employment; and 

  

	 	(3)	On the Change of Control, cause any unexercisable installments of any stock options of the Company or any subsidiary or affiliate of the Company held by the Executive on the
Executive’s last date of employment with the Company that have not expired to become exercisable on the Change of Control; provided, however, that: (i) such acceleration of exercisability shall not occur as to any option if
the Change of Control does not occur within the period within which the Executive may exercise such option after a termination of employment in accordance with the provisions of the relevant option agreement and option plan; and (ii) any such
acceleration of exercisability shall not extend the period after a termination of employment within which any option may be exercised by the Executive in accordance with the provisions of the relevant option agreement and option plan; and

  

	 	(4)	On the Change of Control, cause any unvested portion of any qualified or non­qualified capital accumulation benefits, and any unvested portion of any qualified or
non­qualified awards made pursuant to any stock incentive plans, including, but not limited to, restricted stock units, restricted stock, stock appreciation rights and all other equity based awards (but excluding stock options), to become
immediately vested (subject to applicable law); 

 provided, however, that any amounts and benefits set forth in this
Section 2 shall be reduced by any and all other severance or other amounts or benefits paid or payable to the Executive as a result of the termination of his or her employment. 
 3. Termination Following a Change of Control. 
 (a) Notwithstanding the provisions of Section 1 above, if, at any time during a period commencing with a Change of Control and ending eighteen months after such Change of Control the Company terminates the
Executive’s employment without Cause (as such term is defined in Section 5(c) below) or the Executive terminates his employment with the Company for Good Reason (as such term is defined in Section 3(b) below) (provided,
however, that a termination for Good Reason by the Executive can only occur if (i) the Executive has given the Company a Notice of Termination indicating the existence of a condition giving rise to Good Reason and the Company has not
cured the condition giving rise to Good Reason within thirty (30) days after receipt of such Notice of Termination, and (ii) such Notice of Termination is given within ninety (90) days after the initial occurrence of the condition
giving rise to Good Reason and further provided that a termination for Good Reason shall occur no later than two years after the initial existence of the condition constituting “Good Reason”), the Company shall: 
  

	 	(1)	Pay to the Executive, within ten (10) business days following the Executive’s last date of employment, a lump sum amount (net of any required withholding) equal to:
(i) twelve (12) months of Base Salary, plus (ii) the target bonus that could have been payable to such Executive (assuming continued employment) during the year in which the termination of employment occurs based on bonus arrangements
in effect immediately prior to the termination of his or her employment (all payments under Sections 1, 2 and this Section 3(a) being referred to collectively, as the “Severance Payments”); and 

  

	 	(2)	 Provide the Executive and his dependents with life, accident, health and dental insurance substantially similar to that which the Executive was receiving
immediately prior to the 

  

 - 2 - 

	 	 
termination of his employment until the earlier of: (i) the date which is twelve (12) months following the Executive’s last day of employment;
or (ii) the date the Executive commences subsequent employment; and 

  

	 	(3)	Cause any unexercisable installments of any stock options of the Company or any subsidiary or affiliate of the Company held by the Executive on the Executive’s last date of
employment with the Company that have not expired to become exercisable on such last date of employment; provided, however, that: (i) such acceleration of exercisability shall not occur as to any option if the Change of Control
does not occur within the period within which the Executive may exercise such option after a termination of employment in accordance with the provisions of the relevant option agreement and option plan; and (ii) any such acceleration of
exercisability shall not extend the period after a termination of employment within which any option may be exercised by the Executive in accordance with the provisions of the relevant option agreement and option plan; and 

 

	 	(4)	Cause any unvested portion of any qualified or non­qualified capital accumulation benefits, and any portion of any qualified or non­qualified awards made pursuant to any
stock incentive plans, including, but not limited to, restricted stock units, restricted stock, stock appreciation rights and all other equity based awards (but excluding stock options), to become immediately vested (subject to applicable law);

 provided, however, that any amounts and benefits set forth in this Section 3 shall be reduced by any and all other
severance or other amounts or benefits paid or payable to the Executive as a result of the termination of his or her employment.  
 (b) For purposes of Section 3 above, “Good Reason” shall mean the occurrence of one or more of the following events following a Change of Control, as the case may be: (i) the assignment to the Executive of any duties
inconsistent in any adverse, material respect with his position, authority, duties or responsibilities immediately prior to the Change of Control or any other action by the Company which results in a material diminution in such position, authority,
duties or responsibilities; (ii) a material reduction in the aggregate of the Executive’s base compensation or the termination of the Executive’s rights to any employee benefits immediately prior to the Change of Control, except to
the extent any such benefit is replaced with a comparable benefit, or a reduction in scope or value thereof; or (iii) a change by the Company in the location at which the Executive performs the Executive’s principal duties for the Company
to a new location that is both (X) outside a radius of 40 miles from the Executive’s principal residence immediately prior to the Change of Control and (Y) more than 30 miles from the location at which the Executive performed the
Executive’s principal duties for the Company immediately prior to the Change of Control; or a requirement by the Company that the Executive travel on Company business to a substantially greater extent than required immediately prior to the
Change of Control or (iv) a failure by the Company to obtain the agreement referenced in Section 5(f). 
  

 - 3 - 

 4. Distributions. The following rules shall apply with respect to distribution of the payments and
benefits, if any, to be provided to the Executive under this Agreement: 
 (i) It is intended that each installment of the payments and
benefits provided under this Agreement shall be treated as a separate “payment” for purposes of Section 409A of the U.S. Internal Revenue Code of 1986, as amended, and the guidance issued thereunder (“Section 409A”). Neither
the Company nor the Executive shall have the right to accelerate or defer the delivery of any such payments or benefits except to the extent specifically permitted or required by Section 409A; 
 (ii) If, as of the date of the “separation from service” of the Executive from the Company, the Executive is not a “specified
employee” (each within the meaning of Section 409A), then each installment of the payments and benefits shall be made on the dates and terms set forth in this Agreement; and 
 (iii) If, as of the date of the “separation from service” of the Executive from the Company, the Executive is a “specified employee”
(each, for purposes of this Agreement, within the meaning of Section 409A), then: 
 (A) Each installment of the payments and benefits
that, in accordance with the dates and terms set forth herein, will in all circumstances, regardless of when the separation from service occurs, be paid within the Short-Term Deferral Period (as hereinafter defined) shall be treated as a short-term
deferral within the meaning of Treasury Regulation § 1.409A-1(b)(4) to the maximum extent permissible under Section 409A. For purposes of this Agreement, the “Short-Term Deferral Period” means the period ending on the later of
the 15th day of the third month following the end of the Executive’s tax year in which the Executive’s separation from service occurs and the 15th day of the third month following the end of the Company’s tax year in which the
Executive’s separation from service occurs; and 
 (B) Each installment of the payments and benefits that is not paid within the
Short-Term Deferral Period and that would, absent this subsection, be paid within the six-month period following the “separation from service” of the Executive of the Company shall not be paid until the date that is six months and one day
after such separation from service (or, if earlier, the death of the Executive), with any such installments that are required to be delayed being accumulated during the six-month period and paid in a lump sum on the date that is six months and one
day following the Executive’s separation from service and any subsequent installments, if any, being paid in accordance with the dates and terms set forth herein; provided, however, that the preceding provisions of this sentence shall not apply
to any installment of payments and benefits if and to the maximum extent that such installment is deemed to be paid under a separation pay plan that does not provide for a deferral of compensation by reason of the application of Treasury Regulation
§ 1.409A-1(b)(9)(iii) (relating to separation pay upon an involuntary separation from service) or Treasury Regulation § 1.409A-1(b)(9)(iv) (relating to reimbursements and certain other separation payments). Such payments shall bear
interest at an annual rate equal to the prime rate as set forth in the Eastern edition of the Wall Street Journal on the Date of Termination, from the Date of Termination to the date of payment. Any installments that qualify for the exception under
Treasury Regulation § 1.409A-1(b)(9)(iii) must be paid no later than the last day of the second taxable year of the Executive following the taxable year of the Executive in which the separation from service occurs. 
  

 - 4 - 

 5. General. 
 (a) In the event the Executive’s employment with the Company is terminated(i) by the Company at any time for Cause (as such term is defined in Section 5(c) below), or (ii) the Executive terminates his
employment with the Company other than during the specific time periods set forth in Section 3 or for any reason other than Good Reason (as such term is defined in Section 3(b) above), the Executive shall not be entitled to the severance
benefits or other considerations described herein by virtue of this Agreement. 
 (b) For purposes of this Agreement, “Change of
Control” shall mean the closing of: (i) a merger, consolidation, liquidation or reorganization of the Company into or with another Company or other legal person, after which merger, consolidation, liquidation or reorganization the capital
stock of the Company outstanding prior to consummation of the transaction is not converted into or exchanged for or does not represent more than 50% of the aggregate voting power of the surviving or resulting entity; (ii) the direct or indirect
acquisition by any person (as the term “person” is used in Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934, as amended) of more than 50% of the voting capital stock of the Company, in a single or series of related
transactions; or (iii) the sale, exchange, or transfer of all or substantially all of the Company’s assets (other than a sale, exchange or transfer to one or more entities where the stockholders of the Company immediately before such sale,
exchange or transfer retain, directly or indirectly, at least a majority of the beneficial interest in the voting stock of the entities to which the assets were transferred). 
 (c) For purposes of this Agreement, “Cause” shall mean: (i) the commission by the Executive of a felony, either in connection with the
performance of his obligations to the Company or which adversely affects the Executive’s ability to perform such obligations; (ii) gross negligence, breach of fiduciary duty or breach of any confidentiality, non-competition or developments
agreement in favor of the Company; or (iii) the commission by the Executive of an act of fraud or embezzlement or other acts in intentional disregard of the Company which result in loss, damage or injury to the Company, whether directly or
indirectly. 
 (d) Notwithstanding anything to the contrary in this Agreement, if any portion of any payments received by the
Executive from the Company (whether payable pursuant to the terms of this Agreement or any other plan, agreement or arrangement with the Company, its successors or any person whose actions result in a change of control of the Company) shall be
subject to tax imposed by Section 4999 of the Internal Revenue Code of 1986, as amended or any successor statutory provision, the Company shall pay to the Executive such additional amounts as are necessary so that, after taking into account any
tax imposed by Section 4999 (or any successor statutory provision), and any federal and state income taxes payable on any such tax, the Executive is in the same after-tax position that he or she would have been if such Section 4999 (or any
successor statutory provision) did not apply and no payments were made pursuant to this Section 5(d). The Executive and the Company shall each reasonably cooperate with the other in connection with any administrative or judicial proceedings
concerning the existence or amount of liability for Excise Tax with respect to the Payments. All determinations required to be made under this Section 5(d), including whether a Gross-Up Payment is required and the amount of such Gross-Up
Payment, shall be made by the Company, after consultation with its tax and accounting advisors. 
 (e) The parties hereto expressly agree
that the payments by the Company to the Executive in accordance with the terms of this Agreement will be liquidated damages, and that the Executive shall not be required to mitigate the amount of any payment provided for in this Agreement by seeking
other employment or otherwise, nor shall any profits, income, earnings or other benefits from any source whatsoever create any mitigation, offset, reduction or any other obligation on the part of the Executive. 
 (f) Except as otherwise provided herein, this Agreement shall be binding upon and inure to the benefit of the Company and any successor (whether direct
or indirect, by purchase, merger, consolidation, reorganization or otherwise) of the Company; provided, however, that as a condition of closing any transaction which results in a Change of Control, the Company shall obtain the written
agreement of any successor (whether direct or indirect, by purchase, merger, consolidation, reorganization or otherwise) of the Company to be bound by the provisions of this Agreement as if such successor were the Company and for purposes of this
Agreement, any such successor of the Company shall be deemed to be the “Company” for all purposes. 
  

 - 5 - 

 (g) Nothing in this Agreement shall create any obligation on the part of the Company or any other person
to continue the employment of the Executive. If the Executive elects to receive the severance and benefits set forth in Sections 1, 2 or 3, the Executive shall not be entitled to any other salary continuation or severance benefits in the event of
his cessation of employment with the Company. 
 (h) Nothing herein shall affect the Executive’s obligations under any key employee,
non-competition, confidentiality, option or similar agreement between the Company and the Executive currently in effect or which may be entered into in the future. 
 (i) The Executive agrees that it will execute and deliver to the Company a copy of the Agreement/Waiver in the form attached hereto as Exhibit A in consideration of, and prior to the Company’s payment of,
any amounts payable hereunder. 
 (j) This Agreement shall be governed by and construed in accordance with the laws of the Commonwealth of
Massachusetts. This Agreement constitutes the entire Agreement between the Executive and the Company concerning the subject matter hereof and supersedes any prior negotiations, understandings or agreements concerning the subject matter hereof,
whether oral or written, and may be amended or rescinded only upon the written consent of the Company and the Executive. The invalidity or unenforceability of any provision of this Agreement shall not affect the other provisions of this Agreement
and this Agreement shall be construed and reformed to the fullest extent possible. The Executive may not assign any of his rights or obligations under this Agreement; the rights and obligations of the Company under this Agreement shall inure to the
benefit of, and shall be binding upon, the successors and assigns of the Company. This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument. 
 (k) This Agreement is intended to comply with the provisions of Section 409A and shall, to the extent practicable, be construed in accordance
therewith. Terms defined in the Agreement shall have the meanings given such terms under Section 409A if and to the extent required in order to comply with Section 409A. Notwithstanding the foregoing, to the extent that the Agreement or
any payment or benefit hereunder shall be deemed not to comply with Section 409A, then neither the Company, the Board of Directors nor its or their designees or agents shall be liable to the Executive or any other person for any actions,
decisions or determinations made in good faith. 
  

 - 6 - 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the date first
written above. 
  

			
	The Company:
	
	PAREXEL INTERNATIONAL CORPORATION
		
	By:	 	 /s/ Josef H. von Rickenbach

	Name:	 	Josef H. von Rickenbach
	Title:	 	Chairman and Chief Executive Officer

			
	
	The Executive:
		
	Signature:	 	 /s/ James F. Winschel, Jr.

	Printed Name:	 	James F. Winschel, Jr.

  

 - 7 - 

 Exhibit A 
 AGREEMENT/WAIVER 
 It is hereby agreed by and between
                     (the “Executive”) and PAREXEL International Corporation (together with all subsidiaries and affiliates
hereinafter referred to as the “Company”), for good and sufficient consideration more fully described below, that: 
 1.
Consideration. The Company will provide the Executive with the amounts and benefits described in Sections 1, 2 and 3 of the Amended and Restated Change of Control/Severance Agreement entered into by the Company and the Executive, dated April
__, 2008, (the “Agreement”), subject to the terms and conditions of such Agreement. The Executive understands that payment of and all such amounts and benefits are conditioned upon the Executive signing this agreement. 
 2. Settlement of Amounts Due the Executive. The Executive agrees that the amounts set forth above in Section 1, together with any amounts
previously provided to the Executive by the Company, shall be complete and unconditional payment, settlement, satisfaction and accord with respect to all obligations and liabilities of the Company and any of its affiliated companies (including their
respective successors, assigns, shareholders, officers, directors, employees and/or agents) to the Executive, and all claims, causes of action and damages by the Executive against the Company and/or any such other parties regarding the Executive's
employment with and termination from employment with the Company, including, without limitation, all claims for back wages, salary, draws, commissions, bonuses, vacation pay, equity compensation, expenses, compensation, severance pay, attorney's
fees, compensatory damages, exemplary damages, or other costs or sums. 
 3. Release. 
 (a) In exchange for the amounts and benefits described in Section 1 above and other good and valuable consideration, receipt of which is hereby
acknowledged, the Executive and his representatives, agents, estate, successors and assigns, absolutely and unconditionally hereby release and forever discharge the Company, its affiliated companies and/or their successors, assigns, directors,
shareholders, officers, employees and/or agents, both individually and in their official capacities, (the “Releasees”), from any and all actions or causes of action, suits, claims, complaints, contracts, liabilities, agreements, promises,
debts and damages, controversies, judgments, rights and demands, whether existing or contingent, known or unknown, which arise under the Agreement. This release is intended by the Executive to be all encompassing and to act as a full and total
release of any claims that the Executive may have or has had against the Releasees under the Agreement, including, but not limited to, any federal, state or local law or regulation dealing with either employment or employment discrimination such as
those laws or regulations concerning discrimination on the basis of age, race, color, religion, creed, sex, sexual- orientation, national origin, ancestry, marital status, physical or mental disability, any veteran status or any military service or
application for any military service; any contract, whether oral or written, express or implied; or common law. 
 (b) The Executive agrees
not only to release and discharge the Releasees from any and all claims as stated above that the Executive could make on his/her own behalf or on behalf of others, but also those claims which might be made by any other person or organization on
behalf of the Executive, and the Executive specifically waives any right to become, and promises not to become, a member of any class in a case in which a claim or claims against the Releasees are made involving any matters which arise out of, or in
connection with, the Agreement. Nothing in this agreement is to be construed as an admission by the Releasees of any liability or unlawful conduct whatsoever. 
 4. Waiver of Rights and Claims Under the Age Discrimination and Employment Act of 1967. 
 (a) The
Executive has been informed that since he is 40 years of age or older, he has or might have specific rights and/or claims under the Age Discrimination and Employment Act of 1967. In consideration for the amounts described in Section 1 hereof,
the Executive specifically waives such rights and/or claims to the extent that such rights and/or claims arose prior to the date this Agreement was executed. 

 (b) The Executive was advised by the Company of his right to consult with an attorney prior to executing
this Agreement. 
 (c) The Executive was further advised when he was presented by the Company with the original draft of this Agreement on
                    , 20    , that he had at least 21 days within which to consider its terms and to consult with
or seek advice from an attorney or any other person of his/her choosing, until the close of business on                     ,
20    . 
 5. Confidentiality. The Executive agrees he shall not divulge or publish, directly or
indirectly, any information whatsoever regarding the substance, terms or existence of the Agreement or this agreement and/or any discussions or negotiations relating to the Agreement or this agreement to any person or organization, except to his
immediate family members, counsel or accountant, and unless required under law or court order. 
 6. Representations and Governing
Law. 
 (a) This agreement represents the complete and sole understanding between the parties regarding the subject matter hereto. This
agreement may not be modified, altered or rescinded except upon written consent of the Company and Executive. The invalidity or unenforceability of any provision of this agreement shall not affect the other provisions of this agreement, but this
agreement shall be revised, construed and reformed to the fullest extent possible to effectuate the purposes of this agreement. This agreement shall be binding upon and inure to the benefit of the Company and the Executive and their respective
heirs, successors and assigns. The parties agree that the Company will not have an adequate remedy if the Executive fails to comply with Sections 3, 4, and 5 hereof and that damages will not be readily ascertainable, and that in the event of such
failure, the Executive shall not oppose any application by the Company requiring a decree of specific performance or an injunction enjoining a breach of this agreement. If the Executive breaches any of his/her obligations hereunder, he shall forfeit
all right to payments pursuant to Section 1. 
 (b) This agreement shall be governed by and construed in accordance with the laws of the
Commonwealth of Massachusetts, without giving effect to the principles of conflicts of law thereof. 
 (c) The Executive represents that he
has read this agreement, fully understands the terms and conditions of such agreement, and is voluntarily executing the same. In entering into this agreement, the Executive does not rely on any representation, promise or inducement made by the
Releasees, with the exception of the consideration described in this document. 
 7. Effective Date. The Executive may revoke this
agreement during the period of seven (7) days following its execution by the Executive, and this agreement shall not become effective or enforceable until this revocation period has expired. 
  

			
	The Company:
	
	PAREXEL INTERNATIONAL CORPORATION
		
	By:	 	  

	Name:	 	  

	Title:	 	  

	Date:	 	  

			
	
	The Executive:
		
	Signature:	 	  

	Printed Name:	 	  

	Date:	 	  

  

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