FORM OF SUBSCRIPTION AGENT AGREEMENT April ___, 2009

Exhibit 4.3

FORM OF SUBSCRIPTION AGENT AGREEMENT

April ___, 2009

American Stock Transfer & Trust Company, LLC
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Ladies and Gentlemen:

In connection with your appointment as Subscription Agent in the transaction described herein, BioMimetic Therapeutics, Inc. (the “Company”), hereby confirms its arrangements with you as follows:

1.

Rights Offering — The Company is offering (the “Rights Offering”) to certain holders of shares of its common stock, par value $.001 per share (“Common Stock”), on April 21, 2009 (the “Record Date”), the right (“Rights”) to subscribe for Units (“Units”), each Unit consisting of 0.1017 shares of Common Stock. Except as set forth under Paragraphs 7 and 9 below, the Rights shall cease to be exercisable at 5:00 p.m., New York City time, on June 15, 2009 or such later date of which the Company notifies you orally and confirms in writing (the “Expiration Date”). A total of 19,659,525 Rights are being issued for 19,659,525 shares of Common Stock held on the Record Date, which if fully subscribed will result in the issuance of 1,999,373 additional shares of Common Stock. Delivery of one Right and payment in full of the subscription price of $8.50 per share (the “Subscription Price”) are required to subscribe for one Unit. The Rights are evidenced by non-transferable subscription certificates in registered form (“Subscription Certificates”). Each holder of Subscription Certificate(s) who exercises the holder’s right to subscribe for all Units that can be subscribed for with the Rights evidenced by such Subscription Certificate(s) (the “Basic Subscription Right”) will have the right to subscribe for additional Units, if any, available as a result of any unexercised Rights (such additional subscription right being referred to hereafter as the “Additional Subscription Privileged”). The Rights Offering will be conducted in the manner and upon the terms set forth in the Company’s Prospectus dated ___, 2009 (the “Prospectus”), which is incorporated herein by reference and made a part hereof as if set forth in full herein.

2.

Appointment of Subscription Agent — You are hereby appointed as Subscription Agent to effect the Rights Offering in accordance with the Prospectus. Each reference to you in this letter is to you in your capacity as Subscription Agent unless the context indicates otherwise.

3.

Delivery of Documents — Enclosed herewith are the following, the receipt of which you acknowledge by your execution hereof:

	(a)		a copy of the Prospectus;
	(b)		the form of Subscription Certificate (with instructions);
	(c)		resolutions adopted by the Board of Directors of the Company in connection with the Rights Offering, certified by the secretary of the Company; and
	(d)		Notice of Guaranteed Delivery.

		As soon as is reasonably practical, you shall mail or cause to be mailed to each holder of Common Shares at the close of business on the Record Date a Subscription Certificate evidencing the Rights to which such holder is entitled, a Notice of Guaranteed Delivery, a Prospectus and an envelope addressed to you. Prior to mailing, the Company will provide you with blank Subscription Certificates which you will prepare and issue in the names of holders of Common Shares of record at the close of business on the Record Date and for the number of Rights to which they are entitled. The Company will also provide you with a sufficient number of copies of each of the documents to be mailed with the Subscription Certificates.
4.		Subscription Procedure -
		(a) Upon your receipt prior to 5:00 p.m., New York time, on the Expiration Date (by mail or delivery), as Subscription Agent, of (i) any Subscription Certificate completed and endorsed for exercise, as provided on the reverse side of the Subscription Certificate (except as provided in paragraph 7 hereof), and (ii) payment in full of the Subscription Price in U.S. funds by certified bank check, bank draft or money order payable at par (without deduction for bank service charges or otherwise) to the order of American Stock Transfer & Trust Company, you shall as soon as practicable after the Expiration Date, but not before receiving a Notice of Completion of Stockholder Vote and not until after performing the procedures described in subparagraphs (b) and (c) below, mail to the subscriber’s registered address on the books of the Company certificates representing the securities underlying each Unit duly subscribed for (pursuant to the Basic Subscription Right and the Additional Subscription Privilege) and furnish a list of all such information to the Company.
		(b) As soon as practicable after the Expiration Date you shall calculate the number of Units to which each subscriber is entitled pursuant to the Additional Subscription Privilege. The Additional Subscription Privilege may only be exercised by holders who subscribe to all the Units that can be subscribed for under the Basic Subscription Right. The Units available for additional subscriptions will be those that have not been subscribed and paid for pursuant to the Basic Subscription Right (the “Remaining Units”). Where there are sufficient Remaining Units to satisfy all additional subscriptions by holders exercising their rights under the Additional Subscription Privilege, each holder shall be allotted the number of Additional Units subscribed for. If the aggregate number of Units subscribed for under the Additional Subscription Privilege exceeds the number of Remaining Units, the Remaining Units shall be allocated

		pro rata among each stockholder exercising the Additional Subscription Privilege in proportion to the number of shares of Common Stock owned by such stockholder on the Record Date, relative to the number of shares owned on the record date by all stockholders exercising the Additional Subscription Privilege. If this pro rata allocation results in any stockholder receiving a greater number of Remaining Units than the stockholder subscribed for pursuant to the exercise of the Additional Subscription Privilege, then such stockholder will be allocated only that number of Remaining Units for which the stockholder oversubscribed, and the additional Remaining Units will be allocated among all other stockholders exercising the Additional Subscription Privilege on the same pro rata basis described above. The proration process shall be repeated until all Remaining Units have been allocated or all Additional Subscription Privilege requests have been satisfied. Any fractional Unit to which persons exercising their Additional Subscription Privilege would otherwise be entitled pursuant to such allocation shall be rounded down to the next whole Unit.
		(c) Upon calculating the number of Units to which each subscriber is entitled pursuant to the Additional Subscription Privilege and the amount overpaid, if any, by each subscriber, you shall, as soon as practicable, furnish a list of all such information to the Company.
		(d) Upon receipt of a Notice of Completion of Stockholder Vote from the Company and upon calculating the number of Units to which each subscriber is entitled pursuant to the Additional Subscription Privilege and assuming payment for the additional Units subscribed for has been delivered, you shall mail, as contemplated in subparagraph (a) above, the certificates representing the additional securities which the subscriber has been allotted. If a lesser number of Units is allotted to a subscriber under the Additional Subscription Privilege than the subscriber has tendered payment for, you shall remit the difference to the subscriber without interest or deduction at the same time as certificates representing the securities allotted pursuant to the Additional Subscription Privilege are mailed.
		(e) Funds received by you pursuant to the Basic Subscription Right and the Additional Subscription Privilege shall be held by you in a segregated account. Upon mailing certificates representing the securities and refunding subscribers for additional Units subscribed for but not allocated, if any, you shall promptly remit to the Company all funds received in payment of the Subscription Price for Units sold in the Rights Offering.
5.		Stockholder Vote – The Company is currently soliciting the vote of our stockholders to approve the participation of our largest stockholder in the Rights Offering as a standby purchaser. Upon completion of that vote, the Company shall provide you with written confirmation thereof (“Notice of Completion of Stockholder Vote”). No securities shall be issued under the Rights Offering until you receive the Notice of Completion of Stockholder Vote from the Company.

6.		Defective Exercise of Rights Lost Subscription Certificates — The Company shall have the absolute right to reject any defective exercise of Rights or to waive any defect in exercise. Unless requested to do so by the Company, you shall not be under any duty to give notification to holders of Subscription Certificates of any defects or irregularities in subscriptions. Subscriptions will not be deemed to have been made until any such defects or irregularities have been cured or waived within such time as the Company shall determine. You shall as soon as practicable return Subscription Certificates with the defects or irregularities which have not been cured or waived to the holder of the Rights. If any Subscription Certificate is alleged to have been lost, stolen or destroyed, you should follow the same procedures followed far lost stock certificates representing Common Shares you use in your capacity as transfer agent for the Company’s Common Shares.
7.		Late Delivery — If prior to 5:00 p.m., New York time, on the Expiration Date you receive (i) payment in full of the Subscription Price for the Units being subscribed for and (ii) a guarantee notice substantially in the form of the Notice of Guaranteed Delivery delivered with the Subscription Certificate, from a financial institution having an office or correspondent in the United States, or a member firm of any registered United States national securities exchange or of the National Association of Securities Dealers, Inc. stating the certificate number of the Subscription Certificate relating to the Rights, the name and address of the exercising subscriber, the number of Rights represented by the Subscription Certificate held by such exercising subscriber, the number of Units being subscribed for pursuant to the Rights and guaranteeing the delivery to you of the Subscription Certificate evidencing such Rights within three NASDAQ Global Market (“NGM”) trading days following the date of the Notice of Guaranteed Delivery, then the Rights may be exercised even though the Subscription Certificate was not delivered to you prior to 5:00 p.m., New York time, on the Expiration Date, provided that within three NGM trading days following the date of the Notice of Guaranteed Delivery you receive the properly completed Subscription Certificate evidencing the Rights being exercised, with signatures guaranteed if required.
8.		Delivery — You shall deliver to the Company the exercised Subscription Certificates in accordance with written directions received from the Company and shall deliver to the subscribers who have duly exercised Rights at their registered addresses certificates representing the securities subscribed for as instructed on the reverse side of the Subscription Certificates.
9.		Reports — You shall notify the Company by telephone on an before the close of business on each business day during the period commencing five business days after the mailing of the Rights and ending at the Expiration Date (and in the case of guaranteed deliveries ending three NGM trading days after the Expiration Date) (a “daily notice”), which notice shall thereafter be confirmed in writing, of (i)

		the number of Rights exercised pursuant to both the basic subscription and over-subscription privilege, on the day covered by such daily notice, (ii) the number of Rights subject to guaranteed exercises on the day covered by such daily notice, (iii) the number of Rights for which defective exercises have been received on the day covered by such daily notice, and (iv) the cumulative total of the information set forth in clauses (i) through (iii) above. At or before 5:00 p.m., New York City time, on the first NGM trading day following the Expiration Date you shall certify in writing to the Company the cumulative total through the Expiration Date of all the information set forth in clauses (i) through (iii) above. At or before 10:00 a.m., New York City time, on the fifth NGM trading day following the Expiration Date you will execute and deliver to the Company a certificate setting forth the number of Rights exercised pursuant to a Notice of Guaranteed Delivery and as to which Subscription Certificates have been timely received. You shall also maintain and update a listing of holders who have fully or partially exercised their Rights, holders who have transferred their Rights and their transferees, and holders who have not exercised their Rights. You shall provide the Company or its designees with such information compiled by you pursuant to this paragraph 9 as any of them shall request.
10.		Future Instructions – With respect to notices or instructions to be provided by the Company hereunder, you may rely and act on any written instruction signed by any one or more of the following authorized officers or employees of the Company:

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11.		Payment of Expenses — The Company will pay you compensation for acting in your capacity as Subscription Agent hereunder in the amount of $15,000 plus your reasonable out-of-pocket expenses. The Company will pay an additional fee equal to one-third of the Subscription Agent fee for each extension of the Offering, plus any out-of-pocket expenses associated with such extension.
12.		Counsel — You may consult with counsel satisfactory to you, which may be counsel to the Company, and the advice or opinion of such counsel shall be full and complete authorization and protection in respect of any action taken, suffered or omitted by you hereunder in good faith and in accordance with such advice an opinion of such counsel.
13.		Indemnification –
		(a) The Company covenants and agrees to indemnify and hold you harmless against any costs, expenses (including reasonable fees of legal counsel), losses or damages, which may be paid, incurred or suffered by or to which you may become subject arising from or out of, directly or indirectly, any claim or liability

		resulting from your actions as Subscription Agent pursuant hereto; provided that such covenant and agreement does not extend to such costs, expenses, losses and damages incurred or suffered by you as a result of, or arising out of, your own gross negligence, misconduct or bad faith or that of any employees, agents or independent contractors used by you in connection with performance of your duties as Subscription Agent hereunder.
		(b) You covenant and agree to indemnify and hold the Company harmless against any costs, expenses (including reasonable fees of legal counsel), losses or damages, which may be paid, incurred or suffered by or to which the Company may become subject arising from or out of, directly or indirectly, any claim or liability resulting from your refusal or failure to comply with the terms and conditions of this Agreement or from your gross negligence, willful misconduct or bad faith; provided that such covenant and agreement does not extend to such costs, expenses, losses and damages incurred or suffered by the Company as a result of, or arising out of, the Company’s gross negligence, misconduct or bad faith or that of any employees, agents or independent contractors used by the Company in connection with the Rights offering.
14.		Notices — Unless otherwise provided herein, all reports, notices and other communications required or permitted to be given hereunder shall be in writing and delivered by hand or confirmed telecopy or by first class U.S. mail, postage prepaid, shall be deemed given if by hand or telecopy, upon receipt or if by U.S. mail, three business days after deposit in the U.S. mail and shall be addressed as follows:

(a)

If to the Company, to:

BioMimetic Therapeutics, Inc.
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Attention: ▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇, CFO
Telephone: (▇▇▇) ▇▇▇-▇▇▇▇
Telecopy: (▇▇▇) ▇▇▇-▇▇▇▇

(b)

If to you, to:

American Stock Transfer & Trust Company, LLC
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Attention: ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇
Telephone: (▇▇▇) ▇▇▇-▇▇▇▇
Telecopy: (▇▇▇) ▇▇▇-▇▇▇▇

Yours truly,
		By:
		Name:
		Title:

Agreed & Accepted:
AMERICAN STOCK TRANSFER & TRUST COMPANY, LLC

By:
Name:
Title:

Fee Schedule

Flat fee of $15,000
Plus reasonable out-of-pocket expenses.