EX-10.1



 Exhibit 10.1 

EMPLOYMENT AGREEMENT 

This EMPLOYMENT AGREEMENT (this “Agreement”), dated April 25, 2014 and effective as of the Commencement Date (as defined
in Section 1.2), is by and between REGADO BIOSCIENCES, INC., a Delaware corporation (the “Company”) and R. DON ELSEY (the “Executive”). 

W I T N E S S E T H: 

WHEREAS, the Company desires to employ the Executive as its Senior Vice-President, and Chief Financial Officer and the Executive
desires to accept such employment, on the terms and conditions set forth in this Agreement; and 
 NOW, THEREFORE, in consideration
of the promises and the mutual covenants and agreements contained herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound hereby, agree as
follows: 
 ARTICLE 1  

EMPLOYMENT; TERM OF AGREEMENT 

Section 1.1. Employment and Acceptance. During the Term (as defined in Section 1.2), the Company shall employ the
Executive, and the Executive shall accept such employment and continue to serve the Company, in each case, subject to the terms and conditions of this Agreement. 

Section 1.2. Term. The employment relationship hereunder shall be for the period (such period of the employment relationship shall
be referred to herein as the “Term”) commencing on May 5, 2014 (the “Commencement Date”) and ending upon the termination of this Agreement and the Executive’s employment hereunder by either party hereto
pursuant to the terms of Section 4.1, Section 4.2, Section 4.3 or Section 4.4. In the event that the Executive’s employment with the Company terminates, the Company’s obligation to continue
to pay, after the Termination Date (as defined in Section 4.2(b)), Base Salary (as defined in Section 3.1(a)), Annual Bonus (as defined in Section 3.1(b)) and other unaccrued benefits shall terminate, except as
may be provided for in ARTICLE 4. 
 ARTICLE 2 

TITLE; DUTIES AND OBLIGATIONS; LOCATION 

Section 2.1. Title. The Company shall employ the Executive to render exclusive and full-time services to the Company. The
Executive shall serve in the capacity of Senior Vice-President and Chief Financial Officer. 
 Section 2.2. Duties. The
Executive shall report to the Company’s Chief Executive Officer (the “CEO”) and be subject to the lawful direction of the Company’s Board of Directors (the “Board”) and/or the CEO. The Executive agrees to
perform to the best of his ability, experience and talent those acts and duties, consistent with the position of Senior Vice-President and Chief Financial Officer, as the Board and/or the CEO shall from time to time direct. During








 
the Term, the Executive also shall serve in such other executive-level positions or capacities as may, from time to time, be reasonably requested by the Board and/or the CEO, including, without
limitation (subject to election, appointment, re-election or re-appointment, as applicable) as (a) a member of the Board and/or as a member of the board of directors or similar governing body of any of the Company’s subsidiaries or other
Affiliates (as defined below), (b) an officer of any of the Company’s subsidiaries or other Affiliates, and/or (c) a member of any committee of the Company and/or any of its subsidiaries or other Affiliates, in each case, for no
additional compensation. As used in this Agreement, “Affiliate” of any individual or entity means any other individual or entity that directly or indirectly controls, is controlled by, or is under common control with, the individual
or entity. 
 Section 2.3. Compliance with Policies, etc. During the Term, the Executive shall be bound by, and comply fully
with, all of the Company’s policies and procedures for employees and officers in place from time to time, including, but not limited to, all terms and conditions set forth in the Company’s employee handbook, compliance manual, codes of
conduct and any other memoranda and communications applicable to the Executive pertaining to the policies, procedures, rules and regulations, as currently in effect and as may be amended from time to time. These policies and procedures include,
among other things and without limitation, the Executive’s obligations to comply with the Company’s rules regarding confidential and proprietary information and trade secrets. 

Section 2.4. Time Commitment. During the Term, the Executive shall use his best efforts to promote the interests of the Company
(including its subsidiaries and other Affiliates) and shall devote all of his business time, ability and attention to the performance of his duties for the Company and shall not, directly or indirectly, render any services to any other person or
organization, whether for compensation or otherwise, except with the CEO’s prior written consent, provided that the foregoing shall not prevent the Executive from (i) participating in charitable, civic, educational, professional, community
or industry affairs, (ii) managing the Executive’s passive personal investments, or (iii) continuing to serve on the boards of directors (or similar governing bodies) and/or advisory boards of RegeneRx Biopharmaceuticals and cancer
Support Community on which the Executive served prior to his commencement of employment with the Company, so long as, in each case, the number of such boards is limited to no more than two and such activities individually or in the aggregate do not
materially interfere or conflict with the Executive’s duties hereunder or create a potential business or fiduciary conflict (in each case, as determined by the Board) and as approved by the CEO. 

Section 2.5. Location. The Executive’s principal place of business for the performance of his duties under this Agreement
shall be at the principal executive office of the Company (currently located in Basking Ridge, New Jersey). Notwithstanding, the foregoing, the Executive shall be required to travel as necessary to perform his duties hereunder. 

  
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 ARTICLE 3  

COMPENSATION AND BENEFITS; EXPENSES 

Section 3.1. Compensation and Benefits. For all services rendered by the Executive in any capacity during the Term (including,
without limitation, serving as an officer, director or member of any committee of the Company or any of its subsidiaries or other Affiliates), the Executive shall be compensated as follows (subject, in each case, to the provisions of ARTICLE
4 below): 
 (a) Base Salary. During the Term, the Company shall pay the Executive a base salary (the “Base Salary”) at
the annualized rate of $350,000, which shall be subject to customary withholdings and authorized deductions and be payable in equal installments in accordance with the Company’s customary payroll practices in place from time to time. The
Executive’s Base salary shall be subject to periodic adjustments as the Board and/or the Compensation Committee of the Board (the “Compensation Committee”) shall in its/their discretion deem appropriate. As used in this
Agreement, the term “Base Salary” shall refer to Base Salary as may be adjusted from time to time. 
 (b) Annual
Bonus. For each calendar year ending during the Term (beginning with the calendar year ending December 31, 2014), the Executive shall be eligible to receive an annual bonus (the “Annual Bonus”) with a target amount equal to
thirty-five percent (35%) of the Base Salary earned by the Executive for such calendar year (the “Target Annual Bonus”). The Annual Bonus will be prorated for the current year (2014) according to the number of months
remaining in the year, following the Commencement Date, and based on the Executive’s length of employment during such year. The actual amount of each Annual Bonus will be based upon the level of achievement of the Company’s corporate
objectives and the Executive’s individual objectives, in each case, as established by the Board or the Compensation Committee (taking into account the input of the CEO with respect to the establishment of the Executive’s individual
objectives) for the calendar year with respect to which such Annual Bonus relates. The determination of the level of achievement of the corporate objectives and the Executive’s individual performance objectives for a year shall be made by the
Board or the Compensation Committee (taking into account the input of the CEO with respect to the level of achievement of the Executive’s individual objectives), in its reasonable discretion. Each Annual Bonus for a calendar year, to the extent
earned, will be paid in a lump sum in the following calendar year, within the first 75 days of such following year. The Annual Bonus shall not be deemed earned until the date that it is paid. Accordingly, in order for the Executive to receive an
Annual Bonus, the Executive must be actively employed by the Company at the time of such payment. No partial or prorated bonuses will be provided (other than for 2014, if at all, as stated above). 

(c) Equity Compensation. 

(i) Initial Option Grant. Subject to formal approval by the Compensation Committee of the Board, at the next meeting of the
Compensation Committee held on or following the Commencement Date, the Executive will be granted options (the “Initial Option Grant”) to purchase up to 250,000 shares of the Company’s common stock (at a per share exercise price
equal to fair market value per share of the Company’s common stock as of the date of grant in accordance with the terms of the 2013 Plan (as defined below)). The Initial Option Grant shall be subject to the terms and conditions established
within the Company’s 2013 Equity Compensation Plan (as the same may be amended from time to time) or any successor equity compensation plan as may be in place from time to time (the “2013 Plan”) and separate stock option
agreement between the Company and the Executive (the “Initial Stock Option Agreement”). The Initial Stock Option Agreement will provide that, among other things: (A) 62,500 of such shares shall be fully vested as of the date of
the Initial Option Grant, and (B) the 

  
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remaining shares shall vest ratably in equal monthly installments over a three (3) year period, commencing with the one (1) month anniversary of the Commencement Date and continuing on
the same day of each calendar month thereafter through and including the thirty-six (36) month anniversary of the Commencement Date, in each case, subject to the Executive’s continued employment with the Company on the applicable vesting
date. 
 (ii) The Executive also shall be eligible to receive from time to time additional Stock Options, Stock Units, Performance Shares,
Performance Units, Incentive Bonus Awards, Other Cash-Based Awards and/or Other Stock-Based Awards (as such capitalized terms are defined in the 2013 Plan), in amounts, if any, to be approved by the Board or the Compensation Committee in its
discretion. 
 (d) Benefit Plans. The Executive shall be entitled to participate in all employee benefit plans and programs
(excluding severance plans, if any) generally made available by the Company to senior executives of the Company, to the extent permissible under the general terms and provisions of such plans or programs and in accordance with the provisions
thereof. The Company may amend, modify or rescind any employee benefit plan or program and/or change employee contribution amounts to benefit costs without notice in its discretion. 

(e) Paid Vacation. The Executive shall be entitled to paid vacation days in accordance with the Company’s vacation policies in
effect from time to time for its executive team; provided, however, that Executive shall be entitled to no less than twenty (20) paid vacation days per calendar year during the Term. 

Section 3.2. Expense Reimbursement. The Company shall reimburse the Executive during the Term, in accordance with the
Company’s expense reimbursement policies in place from time, for all reasonable out-of-pocket business expenses incurred by the Executive in the performance of his duties hereunder. Further, but without duplication, the Company will reimburse
the Executive for (a) the reasonable expenses the Executive incurs for travel between his home in 2425 Pebblebrook Ct, Davidsonville, Maryland 21035 and the Company’s office in Basking Ridge, New Jersey and (b) the reasonable expenses
the Executive incurs in connection with his lodging in the Basking Ridge, New Jersey area (but, in each case, specifically excluding any personal travel or lodging expense); provided, however, in no event shall the reimbursement amount for such
travel and lodging expenses exceed $25,000 per year. In order to receive reimbursement under this Section, the Executive shall furnish to the Company documentary evidence of each such expense in the form required to comply with the Company’s
policies in place from time to time. 
 ARTICLE 4 

TERMINATION OF EMPLOYMENT 

Section 4.1. Termination Without Cause. 

(a) The Company may terminate the Executive’s employment hereunder at any time without Cause (other than by reason of death or
Disability) upon written notice to the Executive. 

  
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 (b) As used in this Agreement, “Cause” means: (i) a material act, or act of
fraud, committed by the Executive that results in a material injury (whether financial or otherwise) to the business or reputation of the Company or any of its Affiliates; (ii) the Executive’s commission of a felony or any misdemeanor
involving moral turpitude, deceit, dishonesty or fraud (including entry of a nolo contendere plea); (iii) gross negligence or willful misconduct by the Executive, or failure by the Executive to perform the duties or obligations reasonably
assigned to the Executive by the Board or the CEO from time to time, which is not cured upon ten (10) days prior written notice (unless such negligence, misconduct or failure is not susceptible to cure, as determined in the reasonable
discretion of the Board); (iv) the Executive’s breach of this Agreement, the Covenants Agreement (as defined in Section 5.1 below) or any Company policy, which is not cured upon ten (10) days prior written notice (unless
such breach is not susceptible to cure, as determined in the reasonable discretion of the Board); or (v) the Executive’s misappropriation or embezzlement of the property of the Company or its Affiliates (whether or not a misdemeanor or
felony). 
 (c) If the Executive’s employment is terminated pursuant to Section 4.1(a), the Executive shall, in full
discharge of all of the Company’s obligations to the Executive, be entitled to receive, and the Company’s sole obligation to the Executive under this Agreement or otherwise shall be to pay or provide to the Executive, the following: 

(i) the Accrued Obligations (as defined in Section 4.2(b)); and 

(ii) subject to Section 4.5 and Section 4.6: 

(A) payments equal to the sum of twelve (12) months of the Executive’s Base Salary (at the rate in effect immediately
prior to the Termination Date) and the Executive’s Target Bonus for the calendar year in which the Termination Date occurs (in each case, less applicable withholdings and authorized deductions), to be paid semi-monthly in accordance with the
Company’s customary payroll practices, commencing sixty (60) days following such termination of employment (the “Severance Payments”); and 

(B) if the Executive then participates in the Company’s medical and/or dental plans and the Executive timely elects to
continue and maintain group health plan coverage pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), the Company will pay monthly, on the Executive’s behalf, a portion of the cost of
such coverage for the twelve (12) months after the Termination Date, which payments will be equal to the amount of the monthly premium for such coverage, less the amount that the Executive would have been required to pay if the Executive had
remained an active employee of the Company (the “COBRA Assistance”); provided, however, that if and to the extent that the Company may not provide such COBRA Assistance without incurring tax penalties or violating any
requirement of the law, the Company shall use its commercially reasonable best efforts to provide substantially similar assistance in an alternative manner provided that the cost of doing so does not exceed the cost that the Company would have
incurred had the COBRA Assistance been provided in the manner described above or cause a violation of Section 409A (as defined in Section 5.16). 

  
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 Section 4.2. Termination for Cause; Voluntary Termination. 

(a) The Company may terminate the Executive’s employment hereunder at any time for Cause upon written notice to the Executive. The
Executive may voluntarily terminate his employment hereunder at any time for any reason or no reason upon ninety (90) days prior written notice to the Company; provided, however, the Company reserves the right, upon written notice
to the Executive, to accept the Executive’s notice of resignation and to accelerate such notice and make the Executive’s resignation effective immediately, or on such other date prior to Executive’s intended last day of work as the
Company deems appropriate. It is understood and agreed that the Company’s election to accelerate Executive’s notice of resignation shall not be deemed a termination by the Company without Cause for purposes of Section 4.1 of
this Agreement or otherwise or constitute Good Reason (as defined in Section 4.3) for purposes of Section 4.3 of this Agreement or otherwise. 

(b) If the Executive’s employment is terminated pursuant to Section 4.2(a), the Executive shall, in full discharge of all of
the Company’s obligations to the Executive, be entitled to receive, and the Company’s sole obligation under this Agreement or otherwise shall be to pay or provide to the Executive, the following (collectively, the “Accrued
Obligations”): 
 (i) the Executive’s earned, but unpaid, Base Salary through the final date of the
Executive’s employment by the Company (the “Termination Date”), payable in accordance with the Company’s standard payroll practices; 

(ii) the Executive’s accrued, but unused, vacation (in accordance with the Company’s policies); 

(iii) expenses reimbursable under Section 3.2 above incurred on or prior to the Termination Date, but not yet
reimbursed; and 
 (iv) any amounts or benefits that are vested amounts or vested benefits or that the Executive is otherwise
entitled to receive under any plan, program, policy or practice (with the exception of those, if any, relating to severance) on the Termination Date, in accordance with such plan, program, policy, or practice. 

Section 4.3. Termination for Good Reason within 12 Months following a Change in Control. 

(a) Notwithstanding the provisions of Section 4.2, if the Executive resigns for Good Reason within twelve (12) months
following a Change in Control of the Company, the provisions of this Section 4.3 shall control. 
 (b) As used in this
Agreement, “Change in Control” means (x) a change in ownership of the Company under clause (i) below or (y) a change in the ownership of a substantial portion of the assets of the Company under clause (ii) below:

 (i) Change in the Ownership of the Company. A change in the ownership of the Company shall occur on the date that
any one person, or more than one person acting as a group (as defined in clause (iii) below), acquires 

  
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ownership of capital stock of the Company that, together with capital stock held by such person or group, constitutes more than 50 percent of the total fair market value or total voting power of
the capital stock of the Company. However, if any one person or more than one person acting as a group, is considered to own more than 50 percent of the total fair market value or total voting power of the capital stock of the Company, the
acquisition of additional capital stock by the same person or persons shall not be considered to be a change in the ownership of the Company. An increase in the percentage of capital stock owned by any one person, or persons acting as a group, as a
result of a transaction in which the Company acquires capital stock in the Company in exchange for property will be treated as an acquisition of stock for purposes of this paragraph. 

(ii) Change in the Ownership of a Substantial Portion of the Company’s Assets. A change in the ownership of a
substantial portion of the Company’s assets shall occur on the date that any one person, or more than one person acting as a group (as defined in clause (iii) below), acquires (or has acquired during the 12-month period ending on the date
of the most recent acquisition by such person or persons) assets from the Company that have a total gross fair market value equal to or more than 80 percent of the total gross fair market value of all of the assets of the Company immediately prior
to such acquisition or acquisitions. For this purpose, gross fair market value means the value of the assets of the Company, or the value of the assets being disposed of, determined without regard to any liabilities associated with such assets.
There is no Change in Control under this clause (ii) when there is a transfer to an entity that is controlled by the shareholders of the Company immediately after the transfer, as provided below in this clause (ii). A transfer of assets by the
Company is not treated as a change in the ownership of such assets if the assets are transferred to (a) a shareholder of the Company (immediately before the asset transfer) in exchange for or with respect to its capital stock, (b) an
entity, 50 percent or more of the total value or voting power of which is owned, directly or indirectly, by the Company, (c) a person, or more than one person acting as a group, that owns, directly or indirectly, 50 percent or more of the total
value or voting power of all the outstanding capital stock of the Company, or (d) an entity, at least 50 percent of the total value or voting power of which is owned, directly or indirectly, by a person described in clause (ii)(c) of this
paragraph. For purposes of this clause (ii), a person’s status is determined immediately after the transfer of the assets. 

(iii) Persons Acting as a Group. For purposes of clauses (i) and (ii) above, persons will not be considered to
be acting as a group solely because they purchase or own capital stock or purchase assets of the Company at the same time. However, persons will be considered to be acting as a group if they are owners of a corporation that enters into a merger,
consolidation, purchase or acquisition of assets or capital stock, or similar business transaction with the Company. If a person, including an entity, owns stock in both corporations that enter into a merger, consolidation, purchase or acquisition
of assets or capital stock, or similar transaction, such shareholder is considered to be acting as a 

  
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group with other shareholders in a corporation only with respect to the ownership in that corporation before the transaction giving rise to the change and not with respect to the ownership
interest in the other corporation. For purposes of this paragraph, the term “corporation” shall have the meaning assigned such term under Treasury Regulation section 1.280G-1, Q&A-45. 

(iv) Each of clauses (i) through (iii) above shall be construed and interpreted consistent with the requirements of
Section 409A and any Treasury Regulations or other guidance issued thereunder. 
 (c) As used in this Agreement, “Good
Reason” means the occurrence of any of the following: (1) a material breach by the Company of the terms of this Agreement; (2) a material reduction in the Executive’s Base Salary; (3) a material diminution in the
Executive’s authority, duties or responsibilities; or (4) a relocation by the Company of the Executive’s principal place of business for the performance of his duties under this Agreement to a location that is anywhere outside of a 50
mile radius of Basking Ridge, New Jersey; provided, however, that the Executive must notify the Company within ninety (90) days of the occurrence of any of the foregoing conditions that he considers it to be a “Good
Reason” condition and provide the Company with at least thirty (30) days in which to cure the condition. If the Executive fails to provide this notice and cure period prior to his resignation, or resigns more than six (6) months after
the initial existence of the condition, his resignation will not be deemed to be for “Good Reason.” 
 (d) If the
Executive’s employment terminates pursuant to Section 4.3(a) (i.e., the Executive resigns for Good Reason within twelve (12) months following a Change in Control of the Company), the Executive shall, in full discharge of
all of the Company’s obligations to the Executive, be entitled to receive, and the Company’s sole obligation to the Executive under this Agreement or otherwise shall be to pay or provide to the Executive, the following: 

(i) the Accrued Obligations; and 

(ii) subject to Section 4.5 and Section 4.6: 

(a) the Severance Payments, payable in accordance with the terms of Section 4.1(c)(ii)(A); and 

(b) if the Executive then participates in the Company’s medical and/or dental plans and the Executive timely elects to continue and
maintain group health plan coverage pursuant to COBRA, the Company will provide the COBRA Assistance, which COBRA Assistance will be payable in accordance with, and subject to the terms set forth in, Section 4.1(c)(ii)(B). 

Section 4.4. Termination Resulting from Death or Disability. 

(a) As the result of any Disability suffered by the Executive, the Company may, upon five (5) days prior notice to the Executive,
terminate the Executive’s employment under this Agreement. The Executive’s employment shall automatically terminate upon his death. 

  
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 (b) “Disability” means a determination by the Company in accordance with
applicable law that as a result of a physical or mental injury or illness, the Executive is unable to perform the essential functions of his job with or without reasonable accommodation for a period of (i) ninety (90) consecutive days; or
(ii) one hundred twenty (120) days during any twelve (12) month period. 
 (c) If the Executive’s employment is
terminated pursuant to Section 4.4(a), the Executive or the Executive’s estate, as the case may be, shall be entitled to receive, and the Company’s sole obligation under this Agreement or otherwise shall be to pay or provide to
the Executive or the Executive’s estate, as the case may be, the Accrued Obligations. 
 Section 4.5. Release Agreement. In
order to receive the Severance Payments or the COBRA Assistance set forth in Section 4.1 or Section 4.3 (in each case, if eligible), the Executive must timely execute (and not revoke) a separation agreement and general
release (the “Release Agreement”) in a customary form as is determined to be reasonably necessary by the Company in its good faith and reasonable discretion. If the Executive is eligible for Severance Payments and COBRA Assistance
pursuant to Section 4.1 or Section 4.3, the Company will deliver the Release Agreement to the Executive within seven (7) calendar days following the Termination Date. The Severance Payments and COBRA Assistance are
subject to the Executive’s execution of such Release Agreement within 45 days of the Executive’s receipt of the Release Agreement and the Executive’s non-revocation of such Release Agreement. 

Section 4.6. Post-Termination Breach. Notwithstanding anything to the contrary contained in this Agreement, the Company’s
obligations to provide the Severance Payments and the COBRA Assistance will immediately cease if the Executive breaches any of the provisions of the Covenants Agreement, the Release Agreement or any other agreement the Executive has with the
Company, or if any provision of those agreements is determined to be unenforceable, to any extent, by a court or arbitration panel, whether by preliminary or final adjudication. 

Section 4.7. Removal from any Boards and Position. If the Executive’s employment is terminated for any reason under this
Agreement, he shall be deemed (without further action, deed or notice) to resign (i) if a member, from the Board or board of directors (or similar governing body) of any Affiliate of the Company or any other board to which he has been appointed
or nominated by or on behalf of the Company and (ii) from all other positions with the Company or any subsidiary or other Affiliate of the Company, including, but not limited to, as an officer of the Company and any of its subsidiaries or other
Affiliates. 
 Section 4.8. Equity Vesting Acceleration. In the event that, within twelve (12) months following a Change in
Control of the Company, the Company terminates the Executive’s employment hereunder without Cause (other than by reason of death or Disability) or the Executive resigns for Good Reason, all stock options and other awards that the Executive may
have under the 2013 Plan (including the Time-Based Interests and the Performance-Based Interests of the Initial Option Grant) shall vest and, in the case of stock options or like awards, become exercisable, to the extent not already vested and (if
applicable) exercisable, on the Termination Date. 

  
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 ARTICLE 5 

GENERAL PROVISIONS 

Section 5.1. Company Proprietary Information, Inventions, and Noncompetition Agreement. The Executive agrees to execute and be
bound by the Proprietary Information, Inventions, and Noncompetition Agreement (“Covenants Agreement”) attached hereto as Schedule A, the terms of which are incorporated herein by reference. The Covenants Agreement shall
survive the termination of this Agreement and the Executive’s employment by the Company for the applicable period(s) set forth therein. 

Section 5.2. Expenses. Each of the Company and the Executive shall bear its/his own costs, fees and expenses in connection with
the negotiation, preparation and execution of this Agreement. 
 Section 5.3. Entire Agreement. This Agreement and the Covenants
Agreement contain the entire agreement of the parties hereto with respect to the terms and conditions of the Executive’s employment during the Term and activities following termination of this Agreement and the Executive’s employment with
the Company and supersede any and all prior agreements and understandings, whether written or oral, between the parties hereto with respect to the subject matter of this Agreement and the Covenants Agreement. Each party hereto acknowledges that no
representations, inducements, promises or agreements, whether oral or in writing, have been made by any party, or on behalf of any party, which are not embodied herein or in the Covenants Agreement. No agreement, promise or statement not contained
in this Agreement or the Covenants Agreement shall be valid and binding, unless agreed to in writing and signed by the parties sought to be bound thereby. 

Section 5.4. No Other Contracts. The Executive represents and warrants to the Company that neither the execution and delivery of
this Agreement by the Executive nor the performance by the Executive of the Executive’s obligations hereunder, shall constitute a default under or a breach of the terms of any other agreement, contract or other arrangement, whether written or
oral, to which the Executive is a party or by which the Executive is bound, nor shall the execution and delivery of this Agreement by the Executive nor the performance by the Executive of his duties and obligations hereunder give rise to any claim
or charge against either the Executive, the Company or any Affiliate, based upon any other contract or other arrangement, whether written or oral, to which the Executive is a party or by which the Executive is bound. The Executive further represents
and warrants to the Company that he is not a party to or subject to any restrictive covenants, legal restrictions or other agreement, contract or arrangement, whether written or oral, in favor of any entity or person which would in any way preclude,
inhibit, impair or limit the Executive’s ability to perform his obligations under this Agreement, including, but not limited to, non-competition agreements, non-solicitation agreements or confidentiality agreements. The Executive shall defend,
indemnify and hold the Company harmless from and against all claims, actions, losses, liabilities, damages, costs and expenses (including reasonable attorney’s fees and amounts paid in settlement in good faith) arising from or relating to any
breach of the representations and warranties made by the Executive in this Section 5.4. 

  
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 Section 5.5. Notices. Any notice or other communication required or permitted
hereunder shall be in writing and shall be delivered personally or sent by nationally recognized overnight courier service (with next business day delivery requested). Any such notice or communication shall be deemed given and effective, in the case
of personal delivery, upon receipt by the other party, and in the case of a courier service, upon the next business day, after dispatch of the notice or communication. Any such notice or communication shall be addressed as follows: 

 

			
	 If to the Company, to:
	  	
	
	             Regado Biosciences, Inc.

	             120 Mountain View Boulevard

	             Basking Ridge, NJ 07920

	             Attn: Board of Directors

		
	 With a copy to:
	  	
	
	             Cooley LLP

	             500 Boylston St.

	             Boston, MA 02116

	             Attn: Michael N. Sheetz, Esq.

		
	 If to the Executive, to:
	  	
	
	             R. Don Elsey

	             2 Carriage Court

	             Warren, New Jersey 07059


 Any person named above may designate another address or fax number by giving notice in accordance with this Section to the
other persons named above. 
 Section 5.6. Governing Law; Jurisdiction. This Agreement shall be governed by, and construed in
accordance with, the laws of the State of New Jersey, without regard to principles of conflicts of law. Any and all actions arising out of this Agreement or Employee’s employment by Company or termination therefrom shall be brought and heard in
the state and federal courts of the State of New Jersey and the parties hereto hereby irrevocably submit to the exclusive jurisdiction of any such courts. THE COMPANY AND THE EXECUTIVE HEREBY WAIVE THEIR RESPECTIVE RIGHT TO TRIAL BY JURY IN ANY
ACTION CONCERNING THIS AGREEMENT OR ANY AND ALL MATTERS ARISING DIRECTLY OR INDIRECTLY HEREFROM AND REPRESENT THAT THEY HAVE CONSULTED WITH COUNSEL OF THEIR CHOICE OR HAVE CHOSEN VOLUNTARILY NOT TO DO SO SPECIFICALLY WITH RESPECT TO THIS WAIVER.

 Section 5.7. Waiver. Either party hereto may waive compliance by the other party with any provision of this Agreement. The
failure of a party to insist on strict adherence to any term of this Agreement on any occasion shall not be considered a waiver or deprive that party of the right thereafter to insist upon strict adherence to that term or any other term of this
Agreement. No waiver of any provision shall be construed as a waiver of any other provision. Any waiver must be in writing. 

  
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 Section 5.8. Severability. If any one or more of the terms, provisions, covenants and
restrictions of this Agreement shall be determined by a court of competent jurisdiction to be invalid, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions of this Agreement shall remain in full force and effect
and shall in no way be affected, impaired or invalidated and the parties will attempt to agree upon a valid and enforceable provision which shall be a reasonable substitute for such invalid and unenforceable provision in light of the tenor of this
Agreement, and, upon so agreeing, shall incorporate such substitute provision in this Agreement. In addition, if any one or more of the provisions contained in this Agreement shall for any reason be determined by a court of competent jurisdiction to
be excessively broad as to duration, geographical scope, activity or subject, it shall be construed, by limiting or reducing it, so as to be enforceable to the extent compatible with then applicable law. 

Section 5.9. Counterparts. This Agreement may be executed in any number of counterparts and each such duplicate counterpart shall
constitute an original, any one of which may be introduced in evidence or used for any other purpose without the production of its duplicate counterpart. Moreover, notwithstanding that any of the parties did not execute the same counterpart, each
counterpart shall be deemed for all purposes to be an original, and all such counterparts shall constitute one and the same instrument, binding on all of the parties hereto. 

Section 5.10. Advice of Counsel. Both parties hereto acknowledge that they have had the opportunity to seek and obtain the advice
of counsel before entering into this Agreement and have done so to the extent desired, and have fully read the Agreement and understand the meaning and import of all the terms hereof. 

Section 5.11. Assignment. This Agreement shall inure to the benefit of the Company and its successors and assigns (including,
without limitation, the purchaser of all or substantially all of its assets) and shall be binding upon the Company and its successors and assigns. This Agreement is personal to the Executive, and the Executive shall not assign or delegate his rights
or duties under this Agreement, and any such assignment or delegation shall be null and void. 
 Section 5.12. Agreement to Take
Actions. Each party to this Agreement shall execute and deliver such documents, certificates, agreements and other instruments, and shall take all other actions, as may be reasonably necessary or desirable in order to perform his or its
obligations under this Agreement. 
 Section 5.13. No Attachment. Except as required by law, no right to receive payments under
this Agreement shall be subject to anticipation, commutation, alienation, sale, assignment, encumbrance, charge, pledge, or hypothecation or to execution, attachment, levy or similar process or assignment by operation of law, and any attempt,
voluntary or involuntary, to effect any such action shall be null, void and of no effect; provided, however, that nothing in this Section 5.13 shall preclude the assumption of such rights by executors, administrators or
other legal representatives of the Executive or the Executive’s estate and their assigning any rights hereunder to the person or persons entitled thereto. 

  
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 Section 5.14. Source of Payment. Except as otherwise provided under the terms of any
applicable employee benefit plan, all payments provided for under this Agreement shall be paid in cash from the general funds of Company. The Company shall not be required to establish a special or separate fund or other segregation of assets to
assure such payments, and, if the Company shall make any investments to aid it in meeting its obligations hereunder, the Executive shall have no right, title or interest whatever in or to any such investments except as may otherwise be expressly
provided in a separate written instrument relating to such investments. Nothing contained in this Agreement, and no action taken pursuant to its provisions, shall create or be construed to create a trust of any kind, or a fiduciary relationship,
between Company and the Executive or any other person. To the extent that any person acquires a right to receive payments from Company hereunder, such right, without prejudice to rights which employees may have, shall be no greater than the right of
an unsecured creditor of Company. The Executive shall not look to the owners of the Company for the satisfaction of any obligations of the Company under this Agreement. 

Section 5.15. Tax Withholding. The Company or other payor is authorized to withhold from any benefit provided or payment due
hereunder, the amount of withholding taxes due any federal, state or local authority in respect of such benefit or payment and to take such other action as may be necessary in the opinion of the Board to satisfy all obligations for the payment of
such withholding taxes. The Executive will be solely responsible for all taxes assessed against him with respect to the compensation and benefits described in this Agreement, other than typical employer-paid taxes such as FICA, and the Company makes
no representations as to the tax treatment of such compensation and benefits. 
 Section 5.16. 409A Compliance. All payments
under this Agreement are intended to comply with or be exempt from the requirements of Section 409A of the Code and regulations promulgated thereunder (“Section 409A”). As used in this Agreement, the “Code”
means the Internal Revenue Code of 1986, as amended. To the extent permitted under applicable regulations and/or other guidance of general applicability issued pursuant to Section 409A, the Company reserves the right to modify this Agreement to
conform with any or all relevant provisions regarding compensation and/or benefits so that such compensation and benefits are exempt from the provisions of 409A and/or otherwise comply with such provisions so as to avoid the tax consequences set
forth in Section 409A and to assure that no payment or benefit shall be subject to an “additional tax” under Section 409A. To the extent that any provision in this Agreement is ambiguous as to its compliance with
Section 409A, or to the extent any provision in this Agreement must be modified to comply with Section 409A, such provision shall be read in such a manner so that no payment due to the Executive shall be subject to an “additional
tax” within the meaning of Section 409A(a)(1)(B) of the Code. If necessary to comply with the restriction in Section 409A(a)(2)(B) of the Code concerning payments to “specified employees,” any payment on account of the
Executive’s separation from service that would otherwise be due hereunder within six (6) months after such separation shall be delayed until the first business day of the seventh month following the Termination Date and the first such
payment shall include the cumulative amount of any payments (without interest) that would have been paid prior to such date if not for such restriction. Each payment in a series of payments hereunder shall be deemed to be a separate payment for
purposes of Section 409A. In no event may the Executive, directly or indirectly, designate the calendar year of payment. All reimbursements provided under this Agreement shall be made or provided in accordance with


  
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the requirements of Section 409A, including, where applicable, the requirement that (i) any reimbursement is for expenses incurred during the Executive’s lifetime (or during a
shorter period of time specified in this Agreement), (ii) the amount of expenses eligible for reimbursement during a calendar year may not affect the expenses eligible for reimbursement in any other calendar year, (iii) the reimbursement
of an eligible expense will be made on or before the last day of the calendar year following the year in which the expense is incurred, and (iv) the right to reimbursement is not subject to liquidation or exchange for another benefit.
Notwithstanding anything contained herein to the contrary, the Executive shall not be considered to have terminated employment with the Company for purposes of Section 4.1 or 4.3 unless the Executive would be considered to have
incurred a “termination of employment” from the Company within the meaning of Treasury Regulation §1.409A-1(h)(1)(ii). In no event whatsoever shall the Company be liable for any additional tax, interest or penalty that may be imposed
on the Executive by Section 409A or damages for failing to comply with Section 409A. 
 Section 5.17. 280G Modified
Cutback. 
 (a) If any payment, benefit or distribution of any type to or for the benefit of the Executive, whether paid or payable,
provided or to be provided, or distributed or distributable pursuant to the terms of this Agreement or otherwise (collectively, the “Parachute Payments”) would (i) constitute a “parachute payment” within the meaning
of Section 280G of the Code, and (ii) subject the Executive to the excise tax imposed under Section 4999 of the Code (the “Excise Tax”), the Parachute Payments shall be reduced so that the maximum amount of the Parachute
Payments (after reduction) shall be one dollar ($1.00) less than the amount which would cause the Parachute Payments to be subject to the Excise Tax; provided that the Parachute Payments shall only be reduced to the extent the after-tax value of
amounts received by the Executive after application of the above reduction would exceed the after-tax value of the amounts received without application of such reduction. For this purpose, the after-tax value of an amount shall be determined taking
into account all federal, state, and local income, employment and excise taxes applicable to such amount. Unless the Executive shall have given prior written notice to the Company to effectuate a reduction in the Parachute Payments if such a
reduction is required, which notice shall be consistent with the requirements of Section 409A to avoid the imputation of any tax, penalty or interest thereunder, then the Company shall reduce or eliminate the Parachute Payments by first
reducing or eliminating any cash payments (with the payments to be made furthest in the future being reduced first), then by reducing or eliminating accelerated vesting of stock options or similar awards, and then by reducing or eliminating any
other remaining Parachute Payments; provided, that no such reduction or elimination shall apply to any non-qualified deferred compensation amounts (within the meaning of Section 409A) to the extent such reduction or elimination would accelerate
or defer the timing of such payment in manner that does not comply with Section 409A. 
 (b) An initial determination as to whether
(x) any of the Parachute Payments received by the Executive in connection with the occurrence of a change in the ownership or control of the Company or in the ownership of a substantial portion of the assets of the Company shall be subject to
the Excise Tax, and (y) the amount of any reduction, if any, that may be required pursuant to the previous paragraph, shall be made by an independent accounting firm selected by the Company (the “Accounting Firm”) prior to the
consummation of such change in the ownership or effective control of the Company or in the ownership of a substantial portion of the 

  
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assets of the Company. The Company will bear all expenses with respect to the determinations by such Accounting Firm required to be made hereunder. The Executive shall be furnished with notice of
all determinations made as to the Excise Tax payable with respect to the Executive’s Parachute Payments, together with the related calculations of the Accounting Firm, promptly after such determinations and calculations have been received by
the Company. 
 (c) For purposes of this Section 5.17, (i) no portion of the Parachute Payments the receipt or enjoyment of
which the Executive shall have effectively waived in writing prior to the date of payment of the Parachute Payments shall be taken into account; (ii) no portion of the Parachute Payments shall be taken into account which in the opinion of the
Accounting Firm does not constitute a “parachute payment” within the meaning of Section 280G(b)(2) of the Code; (iii) the Parachute Payments shall be reduced only to the extent necessary so that the Parachute Payments (other than
those referred to in the immediately preceding clause (i) or (ii)) in their entirety constitute reasonable compensation for services actually rendered within the meaning of Section 280G(b)(4) of the Code or are otherwise not subject to
disallowance as deductions, in the opinion of the auditor or tax counsel referred to in such clause (ii); and (iv) the value of any non-cash benefit or any deferred payment or benefit included in the Parachute Payments shall be determined by
the Company’s independent auditors based on Sections 280G and 4999 of the Code and the regulations for applying those sections of the Code, or on substantial authority within the meaning of Section 6662 of the Code. 

[Signature Page Follows] 

  
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 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year
first above written. 
  

			
	COMPANY
	
	Regado Biosciences, Inc.
		
	 By:
	 	 /s/ David J. Mazzo, Ph.D.

	Name: David J. Mazzo, Ph.D.
	Title:   Chief Executive Officer
	
	EXECUTIVE
	
	 /s/ R. Don Elsey

	R. Don Elsey


 [SIGNATURE PAGE TO EMPLOYMENT
AGREEMENT] 







 SCHEDULE A 

Proprietary Information, Inventions, and Noncompetition Agreement