Edelman Joseph, et al. – ‘4’ for 10/8/04 re: Ani Pharmaceuticals Inc. – ‘EX-99.1’

On:  Tuesday, 10/12/04, at 2:09pm ET   ·   For:  10/8/04   ·   As:  10% Owner   ·   Accession #:  1193805-4-1570   ·   File #:  1-31812

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Statement of Changes in Beneficial Ownership of Securities by an Insider   —   Form 4   —   SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 4           Statement of Changes in Beneficial Ownership of     HTML     10K 
                Securities by an Insider -- e400820_ex.xml/2.2                   
 2: EX-99.1     Joint Filer Information                                1      5K 

‘EX-99.1’   —   Joint Filer Information

                                                                    Exhibit 99.1

 Joint Filer Information

Names:          Perceptive Life Sciences Master Fund Ltd. and Perceptive        
Advisors LLC                                    

IRS I.D. No.:   980338943 (Master Fund)                 52-2291758 (Advisors)   

Address:        c/o First New York Securities, LLC                              
850 Third Avenue, 8th Floor                     
New York, New York 10022                        

Designated Filer:                               Joseph Edelman                  

Issuer and Ticker Symbol:                       Biosante Pharmaceuticals, Inc.  
                     (BPA)

Date of Earliest Transaction (Month/Day/Year)   October 8, 2004                 

The undersigned, Perceptive Life Sciences Master Fund Ltd. and Perceptive       
Advisors LLC are jointly filing the attached Statement of Changes in Beneficial 
Ownership on Form 4 with Joseph Edelman with respect to the beneficial ownership
of securities of Biosante Pharmaceuticals, Inc.                                 

PERCEPTIVE LIFE SCIENCES                       PERCEPTIVE ADVISORS LLC          
MASTER FUND LTD.                                                                

By: Perceptive Advisors LLC,                                                    
its investment advisor                                              

By:    /s/ Joseph Edelman                      By:    /s/ Joseph Edelman        
    -----------------------------                  -----------------------------
Name:  Joseph Edelman                          Name:  Joseph Edelman            
Title: Managing Member                         Title: Managing Member           

                                                                     Page 3 of 3

Dates Referenced Herein   and   Documents Incorporated by Reference

This ‘4’ Filing		Date		Other Filings
Filed on:		10/12/04		4
For Period end:		10/8/04		4
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