The undersigned stockholder, officer and/or director of Apex Bioventures Acquisition Corporation, a Delaware corporation (the “Company”), in consideration of CRT Capital Group LLC (“CRT”) agreeing to underwrite an initial public offering (“IPO”) of the Company’s units (“Units”), each comprised of one share of the Company’s common stock, par value $0.0001 per share (“Common Stock”), and one warrant exercisable for one share of Common Stock (“Warrant”), as more specifically described in the Company’s Registration Statement on Form S-1, filed with the SEC on July 13, 2006, as amended through the date hereof (collectively, the “Registration Statement”), and embarking on the IPO process, hereby agrees as follows (certain capitalized terms used herein are defined in Schedule I hereto):

1. If the Company solicits approval of its stockholders of a Business Combination, the undersigned shall vote all shares of Common Stock owned or controlled by the undersigned (including, Insider Shares and any shares of Common Stock acquired in or following the IPO) in accordance with the majority of the votes cast by the Public Stockholders. For purposes of the foregoing and clause (ii) of paragraph 2 below, shares of Common Stock held by an affiliated entity over which the undersigned has control are deemed controlled by the undersigned.

2. If a Transaction Failure occurs, the undersigned shall take all reasonable actions within such person’s power to cause (a) the Trust Account to be liquidated and distributed to the holders of the IPO shares as soon as reasonably practicable, and (ii) vote owned or controlled by the undersigned shares in favor of, or otherwise cause, the Company, to dissolve and adopt a plan of distribution of its assets as soon as practicable. Except with respect to IPO Shares acquired by the undersigned in or following the IPO, the undersigned hereby waives any and all right, title, interest or claim of any kind in or to any liquidating distributions by the Company and hereby further waives any claim the undersigned may have in the future as a result of, or arising out of, any contracts or agreements with the Company and agrees to not seek recourse against the Trust Account for any reason whatsoever. The undersigned hereby agrees that the Company shall be entitled to reimbursement from the undersigned for any distribution of the Trust Account received by the undersigned in respect of such person’s Insider Shares.

3. The undersigned acknowledges that the Company will seek to obtain from each of its vendors, prospective target businesses and other entities, a waiver (a “Waiver”) of any right, title, interest or claim in or to any of the monies contained in the Trust Account. The undersigned agrees to indemnify and hold harmless the Company, pro rata with the other officers and directors of the Company based on the relative number of Insider Shares held by each such individual, from and against any and all losses, damages, costs and reasonable expenses arising from, or relating to, claims made by vendors against the Company for services rendered or products sold, but only to the extent that (a) such claims are made by vendors who have not executed a valid and enforceable Waiver, and (b) such claims reduce the amount of funds held in the Trust Account to be distributed to the Company’s Public Stockholders upon the Company’s dissolution. The undersigned is financially able to bear the indemnification obligations described in the immediately preceding paragraph.

4. In order to minimize potential conflicts of interest which may arise from multiple affiliations, the undersigned agrees to present to the Company for its consideration, prior to the undersigned’s exploitation of that opportunity in any way or the presentation to any other person or entity, any suitable opportunity to acquire all or substantially all of the outstanding equity securities of, or otherwise acquire (through merger, capital stock exchange, asset acquisition, stock purchase or other business combination) an operating business in the healthcare industry until the earlier of the consummation by the Company of a Business Combination, the distribution of the Trust Account in connection with the dissolution of the Company or until such time as the undersigned ceases to be an officer or director of the Company; provided, however, that the presentation of such opportunities to the Company shall in each case be subject to any pre-existing fiduciary and/or contractual obligations the undersigned might have.

5. The undersigned acknowledges and agrees that the Company will not consummate any Business Combination which involves a company which is affiliated with any of the Insiders unless the Company obtains an opinion from an independent investment banking firm that is a member of the National Association of Securities Dealers, Inc. that the business combination is fair to the Company’s stockholders from a financial perspective.

6. Except as expressly described in the Section captioned “Certain Transactions” and elsewhere in the Registration Statement, neither the undersigned, any member of the Immediate Family of the undersigned, nor any affiliate of the undersigned (“Affiliate”) will be entitled to receive and will not accept any compensation for services rendered to the Company prior to, or in connection with, the consummation of the Business Combination.

7. The undersigned agrees that none of the undersigned, any member of the Immediate Family of the undersigned, or any Affiliate of the undersigned will be entitled to receive or accept, and the undersigned, on behalf of the undersigned and the aforementioned parties, hereby waives any rights to, a finder’s fee or any other compensation in the event the undersigned, any member of the Immediate Family of the undersigned or any Affiliate of the undersigned originates a Business Combination.

8. The undersigned will, as specified in the Stock Escrow Agreement which the Company will enter into with the undersigned and an escrow agent acceptable to the Company, escrow its, his or her Insider Shares for the period commencing on the Effective Date and ending on (a) in the event that the Company consummates a Business Combination, the earlier of (i) the first anniversary of the consummation of such Business Combination, and (ii) any time after six months from the consummation of such Business Combination if the volume weighted average price of the Common Stock equals or exceeds $11.50 per share for any 20 trading days within any 30 trading day period, and (b) in the event that the Company does not consummate a Business Combination, the date on which the Company gives the escrow agent notice that the Company is being liquidated at which time the escrow agent will destroy the shares,

9. As indicated on the signature page hereto, if applicable, the undersigned agrees to be a member of the Board of Directors and/or an officer of the Company until the earlier of the consummation by the Company of a Business Combination or the liquidation of the Company. The undersigned’s biographical information contained in the Registration Statement under the Section captioned “Management” is true and accurate in all respects, does not omit any material information with respect to the undersigned’s background and contains all of the information required to be disclosed pursuant to Item 401 of Regulation S-K, promulgated under the Securities Act of 1933. The undersigned’s Director and Stockholder Questionnaire and NASD Questionnaire furnished to the Company and CRT is true and accurate in all respects. The undersigned further represents and warrants to the Company and CRT that:

(a) The undersigned is not subject to or a respondent in any legal action for, any injunction, cease-and-desist order or order or stipulation to desist or refrain from any act or practice relating to the offering of securities in any jurisdiction;

(b) The undersigned has never been convicted of or pleaded guilty to any crime (i) involving any fraud, (ii) relating to any financial transaction or handling of funds of another person, or (iii) pertaining to any dealings in any securities and such person is not currently a defendant in any such criminal proceeding; and

10. The undersigned has full right and power, without violating any agreement by which the undersigned is bound, (a) to enter into this letter agreement, and (b) to the extent the undersigned is listed as a member of the Company’s Board of Directors and/or holding an executive office position in the Registration Statement under the Section captioned “Management”, to serve the Company in such capacity or capacities.

12. This letter agreement shall be binding on the undersigned and such person’s respective successors, heirs, personal representatives and assigns. This letter agreement shall terminate on the earlier of (i) the Business Combination Date, or (ii) the Termination Date; provided, however, that any such termination shall not relieve the undersigned from any liability resulting from or arising out of any breach of any agreement or covenant hereunder occurring prior to the termination of this letter agreement.

13. The undersigned authorizes any employer, financial institution, or consumer credit reporting agency to release to CRT and its legal representatives or agents (including any investigative search firm retained by CRT) any information they may have about the undersigned’s background and finances (“Information”). Neither CRT nor its agents shall be violating the undersigned’s right of privacy in any manner in requesting and obtaining the Information, and the undersigned hereby releases them from liability for any damage whatsoever in that connection.

14. This letter agreement shall be governed by and interpreted and construed in accordance with the laws of the State of Delaware applicable to contracts formed and to be performed entirely within the State of Delaware, without regard to the conflicts of law provisions thereof to the extent such principles and rules would require or permit the application of the laws of another jurisdiction. The undersigned hereby agrees that any action, proceeding or claim against the undersigned arising out of or relating in any way to this Agreement shall be brought and enforced in the courts sitting in San Mateo County, California, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive. The undersigned hereby waives any objection to such exclusive jurisdiction and that such courts represent an inconvenience forum.

15. No term or provision of this letter agreement may be amended, terminated or waived except by written instrument executed and delivered (a) in the case of an amendment or terminated, by the undersigned, the Company and CRT, and (b) in the case of a waiver, the party against whom such waiver, is to be enforced.

Unless the contact shall otherwise require, the following terms shall the following respective meanings for all purposes, and the following definitions are equally applicable to both the singular and the plural forms and the feminine, masculine and neuter forms of the terms defined.

“Business Combination” shall mean the acquisition by the Company, whether by merger, capital stock exchange, asset acquisition, stock purchase or other similar business combination, of one or more operating businesses in the healthcare industry, having, collectively, a fair market value equal to at least 80% of the Company’s net assets at the time of such merger, capital stock exchange, asset acquisition, stock purchase or other similar business combination.

“Insider Shares” shall mean all shares of Common Stock of the Company owned by an Insider immediately prior to the Company’s IPO (including shares of Common Stock issuable upon the exercise of Insider Warrants). For the avoidance of doubt, Insider Shares shall not include any IPO Shares purchased by Insiders in connection with or subsequent to the Company’s IPO. For purposes of Section 3 only, each director and officer will be deemed to own Insider Shares held by any member of such director’s of officer’s Immediate Family and any entity affiliated with such director or officer to the extent that such director or officer has voting or dispositive power over such other Insider Shares.

“Insider Warrants” shall mean warrants sold or to be sold to the Insiders in a private placement prior to the effective date of the IPO, at a price per warrant of $1.00 and an aggregate purchase price of $1,250,000, which warrants will be exercisable for up to 1,250,000 shares in the aggregate, at a exercise price of $6.00 per share.

“Transaction Failure” shall mean the failure to consummate a Business Combination within 18 months of the Effective Date (or 24 months after the Effective Date, if a letter of intent, agreement in principle or definitive agreement has been executed within 18 months after the Effective Date and the Business Combination relating thereto has not yet been consummated within such 24-month period).

“Transaction Failure Date” shall mean the 18-month anniversary of the Effective Date (or the 24 month anniversary of the Effective Date, if a letter of intent, agreement in principle or definitive agreement has been executed within 18 months after the Effective Date and the Business Combination relating thereto has not yet been consummated within such 24-month period).

“Trust Account” shall mean that certain trust account established with Continental Stock Transfer & Trust Company, as trustee, and in which the Company deposited the “funds to be held in trust,” as described in the Registration Statement.

		Very truly yours,

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