LOCK-UP AGREEMENT
 
Dated:  March __, 2010
 

PROLOR Biotech, Inc.
3 Sapir Street
Weizmann Science Park
Nes-Ziona, Israel 74140

 
Ladies and Gentlemen:
 
The undersigned is acquiring shares (“Shares”) of common stock, par value
$0.00001 per share, of PROLOR Biotech, Inc., a Nevada corporation (the
“Company”), under that certain Securities Purchase Agreement, dated as of March
__, 2010, by and among the Company and the Investors set forth on the signature
pages thereto (the “Agreement”).  For good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the undersigned hereby
irrevocably agrees that following the date first set forth above (the “Effective
Date”), the undersigned will not, directly or indirectly, (1) offer for sale,
sell, pledge or otherwise dispose of (or enter into any transaction or device
that is designed to, or could be expected to, result in the disposition by any
person at any time in the future of) any Shares, including Shares that may be
deemed to be beneficially owned by the undersigned in accordance with the rules
and regulations of the United States Securities and Exchange Commission or
(2) enter into any swap or other derivatives transaction that transfers to
another, in whole or in part, any of the economic benefits or risks of ownership
of any Shares, whether any such transaction described in clause (1) or (2) above
is to be settled by delivery of Shares or other securities, in cash or
otherwise, (3) make any demand for or exercise any right or cause to be filed a
registration statement, including any amendments thereto, with respect to the
registration of any Securities or securities convertible into or exercisable or
exchangeable for any Shares or any other securities of the Company, or
(4) publicly disclose the intention to do any of the foregoing, in each case,
for a period commencing on the Effective Date and ending on the first
anniversary of such date.
 
In furtherance of the foregoing, the Company and its transfer agent on its
behalf are hereby authorized to decline to make any transfer of securities if
such transfer would constitute a violation or breach of this Lock-Up Agreement.
 
[signature page follows]

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The undersigned hereby represents and warrants that the undersigned has full
power and authority to enter into this Lock-Up Agreement and that, upon request,
the undersigned will execute any additional documents necessary in connection
with the enforcement hereof. All obligations of the undersigned shall be binding
upon the heirs, personal representatives, successors and assigns of the
undersigned.
 
Acknowledged and agreed as of the date first set forth above:

[name of holder]

By:_____________________________
Name:
Title:
 

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