SECURITIES PURCHASE AGREEMENT

SECURITIES PURCHASE AGREEMENT

This Securities Purchase Agreement (this “ Agreement ”) is dated as of September 8, 2009, between Repros Therapeutics Inc., a Delaware corporation (the “ Company ”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a “ Purchaser ” and collectively the “ Purchasers ”).

WHEREAS, subject to the terms and conditions set forth in this Agreement and pursuant to an effective registration statement under the Securities Act of 1933, as amended (the “ Securities Act ”), the Company desires to issue and sell to each Purchaser, and each Purchaser, severally and not jointly, desires to purchase from the Company, securities of the Company as more fully described in this Agreement.

NOW, THEREFORE, IN CONSIDERATION of the mutual covenants contained in this Agreement, and for other good and valuable consideration the receipt and adequacy of which are hereby acknowledged, the Company and each Purchaser agree as follows:

1.1            Definitions .  In addition to the terms defined elsewhere in this Agreement, for all purposes of this Agreement, the following terms have the meanings set forth in this Section 1.1:

“ Affiliate ” means any Person that, directly or indirectly through one or more intermediaries, controls or is controlled by or is under common control with a Person as such terms are used in and construed under Rule 405 under the Securities Act.

“ Board of Directors ” means the board of directors of the Company.

“ Business Day ” means any day except any Saturday, any Sunday, any day which is a federal legal holiday in the United States or any day on which banking institutions in the State of New York are authorized or required by law or other governmental action to close.

“ Closing ” means the closing of the purchase and sale of the Securities pursuant to Section 2.1.

“ Closing Date ” means the Trading Day on which all of the Transaction Documents have been executed and delivered by the applicable parties thereto, and all conditions precedent to (i) the Purchasers’ obligations to pay the Subscription Amount and (ii) the Company’s obligations to deliver the Securities, in each case, have been satisfied or waived.

“ Commission ” means the United States Securities and Exchange Commission.

“ Common Stock ” means the common stock of the Company, $0.001 par value per share, and any other class of securities into which such securities may hereafter be reclassified or changed.

“ Common Stock Equivalents ” means any securities of the Company which would entitle the holder thereof to acquire at any time Common Stock, including, without limitation, any debt, preferred stock, rights, options, warrants or other instrument that is at any time convertible into or exercisable or exchangeable for, or otherwise entitles the holder thereof to receive, Common Stock.

“ Company Counsel ” means Winstead PC, with offices located at 24 Waterway Avenue, Suite 500, The Woodlands, TX 77380.

“ Evaluation Date ” shall have the meaning ascribed to such term in Section 3.1(r).

“ Exchange Act ” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

“ Exempt Issuance ” means the issuance of (a) shares of Common Stock or options to employees, officers or directors   of the Company pursuant to any 401k, stock or option plan duly adopted for such purpose, by a majority of the non-employee members of the Board of Directors or a majority of the members of a committee of non-employee directors established for such purpose, (b) securities upon the exercise or exchange of or conversion of any Securities issued hereunder and/or other securities exercisable or exchangeable for or convertible into shares of Common Stock issued and outstanding on the date of this Agreement, provided that such securities have not been amended since the date of this Agreement to increase the number of such securities or to decrease the exercise price, exchange price or conversion price of such securities, (c) securities issued pursuant to stock splits, stock dividends or distributions, recapitalizations and similar events affecting the Common Stock and (d) securities issued pursuant to acquisitions or strategic transactions approved by a majority of the disinterested directors of the Company, provided that any such issuance shall only be to a Person (or to the equityholders of a Person) which is, itself or through its subsidiaries, an operating company or an asset in a business synergistic with the business of the Company and shall provide to the Company additional benefits in addition to the investment of funds, but shall not include a transaction in which the Company is issuing securities primarily for the purpose of raising capital or to an entity whose primary business is investing in securities.

“ GAAP ” shall have the meaning ascribed to such term in Section 3.1(h).

“ Ladenburg ” shall have the meaning ascribed to such term in Section 5.8.

“ Ladenburg Party ” shall have the meaning ascribed to such term in Section 5.8.

“ Liens ” means a lien, charge, security interest, encumbrance, right of first refusal, preemptive right or other restriction, other than restrictions imposed by securities laws.

“ Material Adverse Effect ” shall have the meaning assigned to such term in Section 3.1(b).

“ Participation Maximum ” shall have the meaning ascribed to such term in Section 4.10(a).

“ Per Share Purchase Price ” equals $0.65 , subject to adjustment for reverse and forward stock splits, stock dividends, stock combinations and other similar transactions of the Common Stock that occur after the date of this Agreement.

“ Person ” means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability company, joint stock company, government (or an agency or subdivision thereof) or other entity of any kind.

“ Pre-Notice ” shall have the meaning ascribed to such term in Section 4.10(b).

“ Pro Rata Portion ” shall have the meaning ascribed to such term in Section 4.10(e).

“ Proceeding ” means an action, claim, suit, investigation or proceeding (including, without limitation, an informal investigation or partial proceeding, such as a deposition), whether commenced or threatened.

“ Prospectus ” means the base prospectus filed with the Registration Statement.

“ Prospectus Supplement ” means the supplement to the Prospectus complying with Rule 424(b) of the Securities Act that is filed with the Commission and delivered by the Company to each Purchaser prior to or at the Closing.

“ Purchaser Party ” shall have the meaning ascribed to such term in Section 4.6.

“ Registration Statement ” means the effective registration statement with Commission file No. 333-155265 which registers the sale of the Shares to the Purchasers.

“ Required Approvals ” shall have the meaning ascribed to such term in Section 3.1(e).

“ Rule 144 ” means Rule 144 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such Rule.

“ Rule 424 ” means Rule 424 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same purpose and effect as such Rule.

“ SEC Reports ” shall have the meaning ascribed to such term in Section 3.1(h).

“ Securities ” means the Shares issuable hereunder.

“ Securities Act ” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder.

“ Shares ” means the shares of Common Stock issued or issuable to each Purchaser pursuant to this Agreement.

“ Short Sales ” means all “short sales” as defined in Rule 200 of Regulation SHO under the Exchange Act (but shall not be deemed to include the location and/or reservation of borrowable shares of Common Stock).

 “ Subscription Amount ” means, as to each Purchaser, the aggregate amount to be paid for Shares purchased hereunder as specified below such Purchaser’s name on the signature page of this Agreement and next to the heading “Subscription Amount,” in United States dollars and in immediately available funds.

“ Subsequent Financing ” shall have the meaning ascribed to such term in Section 4.10(a).

“ Subsequent Financing Notice ” shall have the meaning ascribed to such term in Section 4.10(b).

 “ Subsidiary ” means any subsidiary of the Company as set forth in the SEC Reports, and shall, where applicable, also include any direct or indirect subsidiary of the Company formed or acquired after the date hereof.

“ Trading Day ” means a day on which the principal Trading Market is open for trading.

 “ Trading Market ” means any of the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date in question: the NYSE Amex, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global Select Market, or the New York Stock Exchange (or any successors to any of the foregoing).

“ Transaction Documents ” means this Agreement and any other documents or agreements executed in connection with the transactions contemplated hereunder.

“ Transfer Agent ” means Computershare Trust Company, the current transfer agent of the Company, with a mailing address of 350 Indiana Street, Suite 800, Golden, Colorado  80401 and a facsimile number of 303-262-0610, and any successor transfer agent of the Company.

“ WS ” means Weinstein Smith LLP with offices located at 420 Lexington Avenue, Suite 2620, New York, New York 10170-0002.

2.1            Closing .  On the Closing Date, upon the terms and subject to the conditions set forth herein, substantially concurrent with the execution and delivery of this Agreement by the parties hereto, the Company agrees to sell, and the Purchasers, severally and not jointly, agree to purchase, up to an aggregate of 1,500,000 Shares.  Each Purchaser shall deliver to the Company, via wire transfer of immediately available funds equal to such Purchaser’s Subscription Amount as set forth on the signature page hereto executed by such Purchaser and the Company shall deliver to each Purchaser its respective Shares as determined pursuant to Section 2.2(a), and the Company and each Purchaser shall deliver the other items set forth in Section 2.2 deliverable at the Closing.  Upon satisfaction of the covenants and conditions set forth in Sections 2.2 and 2.3, the Closing shall occur at the offices of WS or such other location as the parties shall mutually agree.

(a)           On or prior to the Closing Date, the Company shall deliver or cause to be delivered to each Purchaser the following:

(i)           this Agreement duly executed by the Company;

(ii)          a legal opinion of Company Counsel, in substantially the form of Exhibit B hereto;

(iii)         a copy of the irrevocable instructions to the Transfer Agent instructing the Transfer Agent to deliver via the Depository Trust Company Deposit Withdrawal Agent Commission System (“ DWAC ”) Shares equal to such Purchaser’s Subscription Amount divided by the Per Share Purchase Price, registered in the name of such Purchaser; and

(iv)        the Prospectus and Prospectus Supplement (which may be delivered in accordance with Rule 172 under the Securities Act).

(b)       On or prior to the Closing Date, each Purchaser shall deliver or cause to be delivered to the Company the following:

(i)           this Agreement duly executed by such Purchaser; and

(ii)          such Purchaser’s Subscription Amount by wire transfer to the account as specified in writing by the Company.

2.3            Closing Conditions .

(a)           The obligations of the Company hereunder in connection with the Closing are subject to the following conditions being met:

(i)           the accuracy in all material respects when made and on the Closing Date of the representations and warranties of the Purchasers contained herein (unless as of a specific date therein);

(ii)          all obligations, covenants and agreements of each Purchaser required to be performed at or prior to the Closing Date shall have been performed in all material respects; and

(iii)         the delivery by each Purchaser of the items set forth in Section 2.2(b) of this Agreement.

(b)       The respective obligations of the Purchasers hereunder in connection with the Closing are subject to the following conditions being met:

(i)           the accuracy in all material respects when made and on the Closing Date of the representations and warranties of the Company contained herein (unless as of a specific date therein);

(ii)          all obligations, covenants and agreements of the Company required to be performed at or prior to the Closing Date shall have been performed in all material respects;

(iii)         the delivery by the Company of the items set forth in Section 2.2(a) of this Agreement;

(iv)         there shall have been no Material Adverse Effect with respect to the Company since the date hereof; and

(v)          from the date hereof to the Closing Date, trading in the Common Stock shall not have been suspended by the Commission or the Company’s principal Trading Market (except for any suspension of trading of limited duration agreed to by the Company, which suspension shall be terminated prior to the Closing), and, at any time prior to the Closing Date, trading in securities generally as reported by Bloomberg L.P. shall not have been suspended or limited, or minimum prices shall not have been established on securities whose trades are reported by such service, or on any Trading Market, nor shall a banking moratorium have been declared either by the United States or New York State authorities nor shall there have occurred any material outbreak or escalation of hostilities or other national or international calamity of such magnitude in its effect on, or any material adverse change in, any financial market which, in each case, in the reasonable judgment of each Purchaser, makes it impracticable or inadvisable to purchase the Securities at the Closing.

3.1            Representations and Warranties of the Company .  The Company hereby makes the following representations and warranties to each Purchaser:

(a)            Subsidiaries .  The Company does not own, directly or indirectly, any Subsidiaries.

(b)            Organization and Qualification .  The Company is an entity duly incorporated or otherwise organized, validly existing and in good standing under the laws of the jurisdiction of its incorporation or organization, with the requisite power and authority to own and use its properties and assets and to carry on its business as currently conducted.  The Company is not in violation or default of any of the provisions of its certificate of incorporation or bylaws.  The Company is duly qualified to conduct business and is in good standing as a foreign corporation or other entity in each jurisdiction in which the nature of the business conducted or property owned by it makes such qualification necessary, except where the failure to be so qualified or in good standing, as the case may be, would not reasonably be expected to result in: (i) a material adverse effect on the legality, validity or enforceability of any Transaction Document, (ii) a material adverse effect on the results of operations, assets, business or condition (financial or otherwise) of the Company or (iii) a material adverse effect on the Company’s ability to perform in any material respect its obligations under any Transaction Document (any of (i), (ii) or (iii), a “ Material Adverse Effect ”). No Proceeding has been instituted in any such jurisdiction revoking, limiting or curtailing or seeking to revoke, limit or curtail such power and authority or qualification.

(c)            Authorization; Enforcement .  The Company has the requisite corporate power and authority to enter into and to consummate the transactions contemplated by each of the Transaction Documents and otherwise to carry out its obligations hereunder and thereunder.  The execution and delivery of each of the Transaction Documents by the Company and the consummation by it of the transactions contemplated hereby and thereby have been duly authorized by all necessary action on the part of the Company and no further action is required by the Company, the Board of Directors or the Company’s stockholders in connection therewith other than in connection with the Required Approvals.  Each Transaction Document to which it is a party has been (or upon delivery will have been) duly executed by the Company and, when delivered in accordance with the terms hereof and thereof, will constitute the valid and binding obligation of the Company enforceable against the Company in accordance with its terms, except (i) as limited by general equitable principles and applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent transfer, fraudulent conveyance and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability of specific performance, injunctive relief or other equitable remedies and (iii) insofar as indemnification and contribution provisions may be limited by applicable law.

(d)            No Conflicts .  The execution, delivery and performance by the Company of the Transaction Documents, the issuance and sale of the Securities and the consummation by it of the transactions contemplated hereby and thereby to which it is a party do not and will not (i) conflict with or violate any provision of the Company’s certificate of incorporation or bylaws, or (ii) conflict with, or constitute a default (or an event that with notice or lapse of time or both would become a default) under, result in the creation of any Lien upon any of the properties or assets of the Company, or give to others any rights of termination, amendment, acceleration or cancellation (with or without notice, lapse of time or both) of, any agreement, credit facility, debt or other instrument (evidencing a Company debt or otherwise) or other understanding to which the Company is a party or by which any property or asset of the Company is bound or affected, or (iii) subject to the Required Approvals, conflict with or result in a violation of any law, rule, regulation, order, judgment, injunction, decree or other restriction of any court or governmental authority to which the Company is subject (including federal and state securities laws and regulations), or by which any property or asset of the Company is bound or affected; except in the case of each of clauses (ii) and (iii), such as would not have or reasonably be expected to result in a Material Adverse Effect.

(e)            Filings, Consents and Approvals .  The Company is not required to obtain any consent, waiver, authorization or order of, give any notice to, or make any filing or registration with, any court or other federal, state, local or other governmental authority or other Person in connection with the execution, delivery and performance by the Company of the Transaction Documents, other than: (i) the filings required pursuant to Section 4.2 of this Agreement, (ii) the filing with the Commission of the Prospectus Supplement, (iii) application(s) to each applicable Trading Market for the listing of the Securities for trading thereon in the time and manner required thereby and (iv) such filings as are required to be made under applicable state securities laws (collectively, the “ Required Approvals ”).

(f)            Issuance of the Securities; Registration .  The Shares are duly authorized and, when issued and paid for in accordance with the applicable Transaction Documents, will be duly and validly issued, fully paid and nonassessable, free and clear of all Liens imposed by the Company.  The Company has reserved from its duly authorized capital stock the maximum number of shares of Common Stock issuable pursuant to this Agreement.  The Company has prepared and filed the Registration Statement in material conformity with the requirements of the Securities Act, including the Prospectus, and such amendments and supplements thereto as may have been required prior to the date of this Agreement.  The Registration Statement was declared effective under the Securities Act on November 26, 2008 (the “ Effective Date ”) and no stop order preventing or suspending the effectiveness of the Registration Statement or suspending or preventing the use of the Prospectus has been issued by the Commission and no proceedings for that purpose have been instituted or, to the actual knowledge of the Company, are threatened by the Commission.  The Company, if required by the rules and regulations of the Commission, proposes to file the Prospectus Supplement, with the Commission pursuant to Rule 424(b).  At the time the Registration Statement and any amendments thereto became effective, at the date of this Agreement and at the Closing Date, the Registration Statement and any amendments thereto conformed and will conform in all material respects to the requirements of the Securities Act and did not and will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading; and the Prospectus and any amendments or supplements thereto, at time the Prospectus or any amendment or supplement thereto was issued and at the Closing Date, conformed and will conform in all material respects to the requirements of the Securities Act and did not and will not contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading.

(g)            Capitalization .  The capitalization of the Company is substantially as set forth in the Prospectus Supplement, as updated by the SEC Reports.  As of the date of the Agreement, the Company has not issued any capital stock since it filed its most recently filed periodic report under the Exchange Act, other than pursuant to the exercise of employee stock options under the Company’s stock option plans, the issuance of shares of Common Stock to employees pursuant to the Company’s employee stock purchase plans and pursuant to the conversion and/or exercise of Common Stock Equivalents outstanding as of the date of the most recently filed periodic report under the Exchange Act.  No Person has any right of first refusal, preemptive right, right of participation, or any similar right to participate in the transactions contemplated by the Transaction Documents.  Except as disclosed in the SEC Reports, as a result of the purchase and sale of the Securities or pursuant to equity compensation plans or agreements filed as exhibits to the SEC Reports, there are no outstanding options, warrants, script rights to subscribe to, calls or commitments of any character whatsoever relating to, or securities, rights or obligations convertible into or exercisable or exchangeable for, or giving any Person any right to subscribe for or acquire, any shares of Common Stock, or contracts, commitments, understandings or arrangements by which the Company is bound to issue additional shares of Common Stock or Common Stock Equivalents, in each case issued by the Company.  Except as set forth on Schedule 3.1(g) attached hereto, the issuance and sale of the Securities will not obligate the Company to issue shares of Common Stock or other securities to any Person (other than the Purchasers) and will not result in a right of any holder of Company securities to adjust the exercise, conversion, exchange or reset price under any of such securities. All of the outstanding shares of capital stock of the Company are validly issued, fully paid and nonassessable, have been issued in compliance with all federal and state securities laws, and none of such outstanding shares was issued in violation of any preemptive rights or similar rights to subscribe for or purchase securities.  No further approval or authorization of any stockholder, the Board of Directors or others is required for the issuance and sale of the Securities.  Except as filed as an exhibit to the SEC Reports, there are no stockholders agreements, voting agreements or other similar agreements with respect to the Company’s capital stock to which the Company is a party or, to the actual knowledge of the Company, between or among any of the Company’s stockholders.

(h)            SEC Reports; Financial Statements .  The Company has complied in all material respects with requirements to file all reports, schedules, forms, statements and other documents filed by the Company under the Securities Act and the Exchange Act, including pursuant to Section 13(a) or 15(d) thereof, for the two years preceding the date hereof (or such shorter period as the Company was required by law or regulation to file such material) (the foregoing materials, including the exhibits thereto and documents incorporated by reference therein, together with the Prospectus and the Prospectus Supplement, being collectively referred to herein as the “ SEC Reports ”) on a timely basis or has received a valid extension of such time of filing and has filed any such SEC Reports prior to the expiration of any such extension.  As of their respective dates, the SEC Reports complied in all material respects with the requirements of the Securities Act and the Exchange Act, as applicable, and none of the SEC Reports, when filed, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, that, the Company’s Current Report on Form 8-K filed with the Commission on July 8, 2009 incorporated a press release dated July 7, 2009 as Exhibit 99.1 and such press release contained certain information which was clarified by subsequent SEC Reports filed by the Company on Forms 8-K filed with the Commission on July 23 and August 3, 2009. The Company has never been an issuer subject to the disqualification provisions set forth in Rule 144(i) under the Securities Act.  The financial statements of the Company included in the SEC Reports comply in all material respects with applicable accounting requirements and the rules and regulations of the Commission with respect thereto as in effect at the time of filing.  Such financial statements have been prepared in accordance with United States generally accepted accounting principles applied on a consistent basis during the periods involved (“ GAAP ”), except as may be otherwise specified in such financial statements or the notes thereto and except that unaudited financial statements may not contain all footnotes required by GAAP, and fairly present in all material respects the financial position of the Company and its consolidated Subsidiaries as of and for the dates thereof and the results of operations and cash flows for the periods then ended, subject, in the case of unaudited statements, to normal, immaterial, year-end audit adjustments.

(i)            Material Changes; Undisclosed Events, Liabilities or Developments .  Since the date of the latest audited financial statements included within the SEC Reports, except as specifically disclosed in a subsequent SEC Report filed prior to the date hereof, (i) there has been no event, occurrence or development that has had or that would reasonably be expected to result in a Material Adverse Effect, (ii) the Company has not incurred any material liabilities (contingent or otherwise) other than (A) trade payables and accrued expenses incurred in the ordinary course of business consistent with past practice and (B) liabilities not required to be reflected in the Company’s financial statements pursuant to GAAP or required to be disclosed in filings made with the Commission, (iii) the Company has not materially altered its method of accounting, (iv) the Company has not declared or made any dividend or distribution of cash or other property to its stockholders or purchased, redeemed or made any agreements to purchase or redeem any shares of its capital stock and (v) the Company has not issued any equity securities to any officer, director or Affiliate, except pursuant to existing Company stock option or compensation plans.  Except for the issuance of the Securities contemplated by this Agreement or as set forth in the SEC Reports, no event, liability or development has occurred or exists with respect to the Company or its business, properties, operations or financial condition, that would be required to be disclosed by the Company under applicable securities laws at the time this representation is made or deemed made that has not been publicly disclosed prior to the date that this representation is made.

(j)            Compliance.   The Company: (i) is not in default under or in violation of (and no event has occurred that has not been waived that, with notice or lapse of time or both, would result in a default by the Company under), nor has the Company received notice of a claim that it is in default under or that it is in violation of, any indenture, loan or credit agreement or any other agreement or instrument to which it is a party or by which it or any of its properties is bound (whether or not such default or violation has been waived), (ii) is not in violation of any judgment, decree or order of any court, arbitrator or governmental body or (iii) is not, nor has been in, violation of any statute, rule, ordinance or regulation of any governmental authority, including without limitation all foreign, federal, state and local laws applicable to its business and all such laws that affect the environment, except in each case as would not reasonably be expected to result in a Material Adverse Effect.

(k)            Certain Fees .  Except as set forth in the Prospectus Supplement, no brokerage or finder’s fees or commissions are or will be payable by the Company to any broker, financial advisor or consultant, finder, placement agent, investment banker, bank or other Person with respect to the transactions contemplated by the Transaction Documents.  The Purchasers shall have no obligation with respect to any fees or with respect to any claims made by or on behalf of other Persons for fees of a type contemplated in this Section that may be due from the Company in connection with the transactions contemplated by the Transaction Documents.

(l)            Investment Company . The Company is not, and is not an Affiliate of, and immediately after receipt of payment for the Securities, will not be or be an Affiliate of, an “investment company” within the meaning of the Investment Company Act of 1940, as amended.

(m)           Listing and Maintenance Requirements .  The Common Stock is registered pursuant to Section 12(b) of the Exchange Act, and the Company has taken no action designed to, or which to its actual knowledge is likely to have the effect of, terminating the registration of the Common Stock under the Exchange Act.

(n)            Application of Takeover Protections .  The