Document:

Letter Agreement, dated January 11, 2007

 Exhibit 10.9 
 Allendale Pharmaceuticals, Inc. 
 655 Madison Avenue 
 New York, NY 10021 
 January 11,
2007 
 Allendale Laboratories, Inc. 
 30 Neck Road 

Old Lyme, CT 06371 
 Attention: Dr. Robert Staab 
 Dear Dr. Staab: 
 This letter confirms our agreement
with regard to the coated condom patent application (the “Patent Application[s]”) and all related technology (together with the Patent Application[s], the “Technology”). By signing this letter, you (a) confirm that Allendale
Pharmaceuticals Inc., a Delaware corporation (the “Company”), is the sole owner of the entire interest represented by the Technology and that you have no claim to ownership of the Technology, (b) agree to take any and all actions
requested by the Company to make sure the Technology has been properly assigned to the Company, and (c) agree to continue to fulfill your duties as an inventor in the prosecution of the Patent Application[s] and development of the Technology.

 In consideration of the foregoing and your continued contribution to the development and commercialization of the Technology, the Company
agrees to pay to you, within ninety (90) days of each calendar year end, a royalty (the “Royalty”) on all sales by the Company of products that utilize or incorporate the Technology (collectively, “Products”) during the term
of this Agreement, within 90 days of each calendar year end, on all sales by Licensee of Products at the rate of 4.5% of the gross sales of the Product without deduction therefrom. 
 For your convenience in verifying the Royalty payments owed to you, the Company shall deliver to you a statement of sales and royalties with respect to
and concurrent with each payment made under this letter, certified by the Company’s Chief Financial Officer (the “Royalty Statement”). Unless within thirty (30) days of delivery of the Royalty Statement by the Company to you, the
Company shall have received a written objection to the Royalty Statement from you, then such draft shall be considered the final Royalty Statement for such period. If within thirty (30) days of delivery of the Royalty Statement by the Company
to you, the Company shall have received a written objection from you to the Royalty Statement, then the Company and you shall attempt to reconcile their differences diligently and in good faith and any resolution by them shall be final, binding and
conclusive. If the Company and you are unable to reach a resolution with such effect within ten (10) days of the Company’s receipt of your written notice of objection, the parties shall submit such dispute for resolution to an independent
accounting firm mutually appointed by the parties (the “Independent Accounting Firm”), which shall determine and report to the parties and such report shall be final, binding and conclusive on the parties hereto. The fees and disbursements
of the Independent Accounting Firm shall initially be split evenly by you and the Company; provided, however, in the event that the 

 
Independent Accounting Firm determines that your objection to the Royalty Statement are valid, then the Company shall pay the fee payable to the Independent
Accounting Firm. 
 The Company has a good faith intention to continue the development and commercialization of the Technology in accordance
with the following milestones (the “Milestones”): 
  

	 	(a)	within one (1) year from the date hereof, to initiate a funded project to develop the Technology, with to be mutually agreed upon between the parties, which funding amounts
shall be commercially reasonable for products of the type and nature of the Products; and 

  

	 	(b)	within thirty (30) months from the date hereof, to make the first sale of a Product for which you will be entitled to a Royalty payment (regardless of whether such payment is
actually due within such thirty (30) month period). 

 In the event that the Company has not met either of the Milestones,
the Company will reassign the Patent Application to you and you will relinquish any and all claims to receive Royalty payments. 
 Please
indicate your agreement to these terms by signing below. 
  

	
	ALLENDALE PHARMACEUTICALS INC.
	
	/s/ Gene Detroyer
	 Name: Gene Detroyer
 Title:
  President & CEO

 Agreed and accepted: 
  

	
	ALLENDALE LABORATORIES, INC.
	
	/s/ Robert Staab
	 Name: Dr. Robert Staab
 Title:
  PresidentSpecimen Unit Certificate

 Exhibit 4.1 
  

					
	No.                 	  	PLATFORM ACQUISITION CORP. INTERNATIONAL	  	                 UNIT (S)
			
	CUSIP NO.	  	Incorporated under the Laws of the State of Delaware	  	

  
 UNIT(S) CONSISTING OF
ONE SHARE OF COMMON STOCK AND TWO WARRANTS, EACH TO PURCHASE ONE SHARE OF COMMON STOCK 
  
 SEE REVERSE FOR CERTAIN DEFINITIONS 
  
 THIS CERTIFIES THAT
                                        
                                        
                                        
                                        
             IS THE OWNER OF
                                        
                                        
                                        
                                        
                 UNIT(S). Each Unit (“Unit”) consists of one (1) share of common stock, par value $.0001 per share (“Common Stock”), of
Platform Acquisition Corp. International, a Delaware corporation (the “Corporation”), and two warrants (the “Warrants”). Each Warrant entitles the holder to purchase one (1) share of Common Stock for $5.00 per share (subject
to adjustment). The Common Sock and Warrants comprising each Unit represented by this certificate are not transferable separately prior to             ,
200  , unless FTN Midwest Securities Corp. determines that an earlier date is acceptable. The terms of the Warrants are governed by a Warrant Agreement, dated as of
            , 200   (the “Warrant Agreement”), between the Corporation and Mellon Investor Services LLC, as Warrant Agent, and are subject to
the terms and provisions contained therein, all of which terms and provisions the holder of this certificate consents to by acceptance hereof. Copies of the Warrant Agreement are on file at the office of the Warrant Agent at Newport Office Center
VII, 480 Washington Blvd., Jersey City, 07210, and are available to any Warrant holder on written request and without cost. This certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar of the Corporation.

  
 WITNESS the seal of the Corporation and the facsimile signature of its
duly authorized officers. 
  
 Dated:
                    , 200   
  

					
	  
	  		  	  

	 Secretary
	  		  	Chief Executive Officer
			
	  
	  		  	
	 Transfer Agent
	  		  	

 [REVERSE] 
  
 The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations: 
  

							
	TEN COM	 	as tenants in common	 	Unif Gift Min Act -	 	                             Custodian
                            
				
	TEN ENT	 	tenants by the entireties	 		 	        (Cust)                              
      (Minor)
				
	JT TEN	 	 as joint tenants with right of survivorship
 and not as
tenants in common
	 		 	

Under Uniform Gifts to Minors
				
		 		 		 	Act:
                                        
                
				
		 		 		 	                                (State)

  
 Additional
abbreviations may also be used though not in the above list. 
  
 Platform Acquisition Corp. International 
  
 The
Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, option or other special rights of each class of stock or series thereof of the Corporation and the
qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the Units represented hereby are issued and shall be held subject to the terms and conditions applicable to the securities underlying and comprising
the Units. 
  
 For Value Received,
                         hereby sell, assign and transfer unto 
  
 PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF
ASSIGNEE 
 __________________________________________ 
  
 _____________________________________________________________________________________________________________ 
 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) 
  
 Units represented by the within Certificate, and do hereby irrevocably constitute and appoint
                 Attorney, to transfer the said Units on the books of the within named Corporation with full power of substitution in the premises.

  

											
	Dated	 	  
	 		 	By:	 	  

		 		 		 		 	NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY
CHANGE WHATEVER.

  
 Signature(s) Guaranteed: 

 

			
	By:	 	  

		 	THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE
GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).Specimen Common Stock Certificate

 Exhibit 4.2 
  

															
	Number	 		  	COMMON STOCK	  	    Shares    
				
	 	 		  	 Incorporated under the Laws of the State of Delaware
 PLATFORM ACQUISITION CORP. INTERNATIONAL
 The Corporation is Authorized to Issue
	  	CUSIP             

  
 Incorporated under
the Laws of the State of Delaware 
 PLATFORM ACQUISITION CORP. INTERNATIONAL 
 The Corporation is Authorized to Issue 
  
 200,000,000 SHARES OF COMMON STOCK, PAR VALUE $0.0001 EACH 
  

1,000,000 SHARES OF PREFERRED STOCK, PAR VALUE $0.0001 EACH 
  
 This Certifies that
                                      
                                        
                                        
                                        
   is the owner of
                                       
                                        
                                        
      fully-paid and non-assessable shares of Common Stock, par value $0.0001 per share, of PLATFORM ACQUISITION CORP. INTERNATIONAL transferable on the books of the Corporation in person or by duly authorized
Attorney by surrender of this certificate properly endorsed. This certificate is not valid unless countersigned by the Transfer Agent and registered by the Registrar. 
  
 In Witness Whereof the corporation has caused this certificate to be executed on this     
day of                     , 200  . 
  

					
	  
	 		 	  

	Chief Executive Officer	 		 	Secretary
			
	  
	 		 	
	Transfer Agent	 		 	

  

															
	Number	 		  		  	    Shares    

 The following abbreviations, when used in the inscription on the face of this certificate, shall be
construed as though they were written out in full according to applicable laws or regulations: 
  

							
	TEN COM	 	as tenants in common	 	Unif Gift Min Act -	 	                             Custodian
                            
				
	TEN ENT	 	tenants by the entireties	 		 	        (Cust)                              
      (Minor)
				
	JT TEN	 	as joint tenants with right of	 		 	Under Uniform Gifts to Minors
				
		 	 survivorship and not as tenants in common
	 		 	Act:
                                        
                
				
		 		 		 	                                (State)

  
 Additional
Abbreviations may also be used though not in the above list. 
  
 Platform Acquisition Corp. International 
  
 The
Corporation will furnish without charge to each stockholder who so requests the powers, designations, preferences and relative, participating, option or other special rights of each class of stock or series thereof of the Corporation and the
qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented hereby are issued and shall be held subject to all the provisions of the Certificate of Incorporation and all amendments
thereto and resolutions of the Board of Directors providing for the issue of shares of Preferred Stock (copies of which may be obtained from the secretary of the Corporation), to all of which the holder of this certificate by acceptance hereof
assents. 
  
 The holder of this certificate shall be entitled to
receive funds from the Corporation’s trust fund only in the event of a liquidation of the Corporation upon failure to consummate a business combination or if the holder seeks to convert his respective shares into cash upon a business
combination which he voted against and which is actually completed by the Corporation. Except as required by applicable law, in no other circumstances shall the holder have any right or interest of any kind in or to the trust fund. 

 
 For Value Received,
                     hereby sell, assign and transfer unto 
  
 PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE 
  
 _____________________________________________________________________________________________________________ 
 (PLEASE PRINT OR
TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) 
 shares of the capital stock represented by the within Certificate, and do hereby
irrevocably constitute and appoint                      Attorney, to transfer the said stock on the books of the within named
Corporation with full power of substitution in the premises. 
  

											
	Dated	 	  
	 		 	By:	 	  

		 		 		 		 	NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY
CHANGE WHATEVER.

  
 Signature(s) Guaranteed: 

 

			
	By:	 	  

		 	THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE
GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

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